Behringer Musical Instrument Amplifier BVT4500H User Manual

User Manual  
A50-52113-00003  
 
ULTRABASS BVT4500H/BVT5500H  
Foreword  
Table of contents  
Dear customer,  
Welcome to the team of  
ULTRABASS users and  
thank you very much for  
expressing your confi-  
dence in BEHRINGER  
products by purchas-  
ing the BEHRINGER  
BVT4500H/BVT5500H.  
Writing this foreword for  
you gives me great plea-  
sure, because it repre-  
sents the culmination of  
many months of hard work  
delivered by our engineer-  
ing team to achieve a very  
ambitious goal: to pres-  
ent an outstanding bass  
workstation that gives  
you maximum flexibility  
and performance with its  
unique sound character and broad range of functions.  
The task of designing our new BVT4500H/5500H certainly meant  
a great deal of responsibility, which we assumed by focusing on  
you, the discerning user and musician. Meeting your expectations  
also meant a lot of work and night shifts. But it was fun, too. De-  
veloping a product usually brings a lot of people together. What a  
great feeling it is when all who participated in such a project can  
be proud of what they’ve achieved.  
It is our philosophy to share our enjoyment with you, because you  
are the most important member of the BEHRINGER team. With  
your highly competent suggestions for new products you’ve made  
a significant contribution to shaping our company and making it  
successful. In return, we guarantee you uncompromising quality  
as well as excellent technical and audio properties at an extremely  
reasonable price.All of this will enable you to give free rein to your  
creativity without being hampered by budget constraints.  
We are often asked how we manage to produce such high-quality  
devices at such unbelievably low prices. The answer is quite  
simple: it’s you, our customers! Many satisfied customers mean  
large sales volumes, enabling us to get better purchasing terms  
for components, etc. Isn’t it only fair to pass this benefit on to you?  
Because we know that your success is our success, too!  
I would like to thank everyone who has made the BVT4500H/5500H  
possible. You have all made your own personal contributions, from  
the developers and the many other employees at this company,  
to you, the BEHRINGER user.  
My friends, it’s been worth the effort!  
Thank you very much,  
Uli Behringer  
3
 
ULTRABASS BVT4500H/BVT5500H  
+
Blown fuses must be replaced by fuses of the correct  
rating! Please refer to the "SPECIFICATIONS" section  
for the applicable rating.  
1. Introduction  
With the BVT4500H/5500H you have acquired a pro-level amplifier  
from our ULTRABASS series. This classic bass amp combines  
an uncompromising, “cutting-through” sound with a full range of  
CAUTION!  
Before changing the fuse, switch off the device and  
pull the plug to avoid electric shock or damage to the  
device.  
sound-shaping features.  
+
1.1 The Design Concept  
Over the past few years, flexibility has become important. Bass  
For connection to the mains use the enclosed power cord with cold  
connector which complies with the relevant safety regulations.  
players must now offer a broad range of sounds and play in differ-  
ent venues: home studios, professional studios, and live concerts.  
Additionally, the world of electric bass playing has changed. New  
effects devices and basses, with five or six strings, are launched  
all the time. There is also the desire to create one’s own, “unique”  
sound—which can only be achieved with innovative amplifiers.  
+
Please make sure that all devices are properly grounded.  
For your own safety, never remove or disable the ground  
conductors from the devices or on the power cords. The  
unit must always be connected to the mains outlet with  
a protective grounding connection.  
In response to these dual needs (flexibility and individuality), the  
BVT4500H/5500H offers you:  
+
Please ensure that only qualified personnel install and  
operate the BVT4500H/BVT5500H. During installation  
and operation the user must have sufficient electrical  
contact to earth. Electrostatic charges might affect the  
operation of the unit.  
= TONE and GRAPHIC EQ features—for shaping and refining  
sound.  
= VTC (Virtual Tube Circuitry)—adding the warmth of vintage  
tube circuitry to sound.  
= Jacks for connecting the BVT4500H/5500H to effects pro-  
cessors, mixers/recording units, other preamps, and other  
power amps.  
WARNING!  
+
Extreme output volumes may damage your hearing and/  
or your loudspeakers. Turn down all volume and level  
controls before you switch on the unit. Always set the  
volume to an appropriate level.  
= 2 types of speaker jacks: ¼" TS and compatible with Neutrik  
Speakon connectors.  
1.2 Before you get started  
1.2.1 Shipment  
Important notes concerning installation  
Your product was carefully packed at the factory to ensure safe  
transport. Nevertheless, if the box is damaged inspect the unit  
immediately for signs of damage.  
+
The sound quality may diminish within the range of pow-  
erful broadcasting stations and high-frequency sources.  
Increase the distance between the transmitter and the  
device and use shielded cables for all connections.  
+
If the unit is damaged please do NOT return it to us,  
but notify your dealer and the shipping company im-  
mediately; otherwise, claims for damage or replacement  
may not be granted.  
1.2.3 Online Registration  
Please register your new BEHRINGER equipment right after your  
and conditions of our warranty carefully.  
+
+
+
+
We recommend that you use a flight case to give the unit  
optimum protection during use or transport.  
Should your BEHRINGER product malfunction, it is our intention  
to have it repaired as quickly as possible. To arrange for warranty  
service, please contact the BEHRINGER retailer from whom the  
equipment was purchased. Should your BEHRINGER dealer  
not be located in your vicinity, you may directly contact one of  
our subsidiaries. Corresponding contact information is included  
in the original equipment packaging (Global Contact Information/  
European Contact Information). Should your country not be listed,  
please contact the distributor nearest you. A list of distributors  
behringer.com).  
Always use the original box to prevent damage during  
storage or transport.  
Make sure that children cannot play unsupervised with  
the unit or its packaging.  
Please ensure proper disposal of all packing  
materials.  
1.2.2 Initial operation  
Registering your purchase and equipment with us helps us process  
your repair claims more quickly and efficiently.  
Ensure adequate air supply and to avoid overheating do not place  
the unit near radiators etc.  
Thank you for your cooperation!  
Before you connect your BVT4500H/5500H to the mains, please  
make sure that your local voltage matches the voltage required  
by the unit.  
CAUTION: The following applies only to BVT versions that can  
be switched between 120 V and 230 V: The fuse holder on the  
mains connector has 3 triangular markings. Two of these triangles  
opposing each other. The device is set to the operating voltage  
printed next to these markers and can be set to another voltage  
by turning the fuse holder by 180°.  
+
Please note that when operating the unit at 120 V, a  
higher fuse rating is required. Blown fuses must be  
replaced by fuses of the correct rating!  
+
If you set the unit to a different mains voltage, be sure  
to use a fuse of the correct type and rating. Please refer  
to the “SPECIFICATIONS” for details.  
4
Introduction  
 
 
ULTRABASS BVT4500H/BVT5500H  
2. Front panel  
Fig. 2.1: BVT4500H front panel  
Fig. 2.2: BVT5500H front panel  
This section describes how to use the front panel of the BVT4500H  
and the BVT5500H, illustrated on the previous page and above.  
{8} GAIN control: Use this control to boost or cut the level of the  
input signal.  
{1} POWER switch: Use the POWER switch to turn on your  
BVT4500H/5500H. The POWER switch should always be  
in the “Off” position when you are about to connect your unit  
to the wall socket or disconnect it.  
{9} PEAK LED: At various points in the signal path, the BVT  
monitors the level of the audio signal. When the level is too  
high, the PEAK LED warns that clipping can occur.  
If the LED:  
+
Switch-on thumps can damage your hearing and your  
speakers. Before you connect the BVT to the mains,  
ensure that it is turned off.  
= occasionally illuminates, the BVT clips only some peaks in the  
audio signal. Occasional clipping does not reduce the sound  
quality and shows that the signal is strong enough.  
= never illuminates, the BVT does not clip any signal peaks in  
the audio signal. The audio signal is probably too weak to  
make use of the full dynamic range. Increase the GAIN {8}  
setting until the PEAK LED lights up only occasionally, at the  
strongest signal peaks.  
{2} VTC LED: When the BVT is off, this LED is not illuminated.  
When it is on, this LED is illuminated and indicates that the  
amp is activated for use. VTC is BEHRINGER’s analog tech-  
nology that emulates the warmth of vintage tube circuitry.  
INPUT features  
= constantly illuminates, the BVT clips a large part of the audio  
signal and you will hear a distortion. Lower the GAIN setting  
and check for extreme fader or control settings.  
To input an audio signal to the BVT, use features {3} - {7}, as  
follows:  
{3} 0 dB jack: To connect an electric bass to the BVT, use this ¼"  
mono jack (unbalanced). Basses with active pickups create  
high-level signals.  
TONE features  
Tone” refers to the presence and quality of these frequency bands  
of an audio signal:  
If your bass includes an active pickup and you work with:  
= bass: from 30 to 200 Hz  
= the BVT4500H, use the PAD button {4} to reduce the input  
= mid-range: from 200 to 2 000 Hz  
= treble: from 2 000 Hz to 20 kHz  
audio signal.  
= the BVT5500H, use the -15 dB jack {5}instead of the 0 dB  
jack.  
The BVT offers controls to effectively tailor the sounds to your  
needs by cutting or boosting specific bands. To adjust the tone,  
use features (10) - (13), as follows:  
{4} PAD button (BVT4500H only): If the PEAK LED {9} con-  
stantly illuminates and the GAIN control {8} is set to 0 (zero),  
the input level of the audio signal is too high. In this case,  
press this button to activate the pad. The pad reduces the  
input sensitivity by 15 dB.  
(10) VOICING control (BVT5500H only): To select the tone you  
want, turn this knob to one of the following presets.  
The BVT5500H equalizes the audio signal for you.  
= 1: Prominent bass and treble tones (scooped mids).  
= 2: Smooth and warm treble tones (passive tone).  
= 3: Flat, natural bass tones (no equalization).  
= 4: Bright treble tones.  
{5} -15 dB jack (BVT5500H only): To connect an active bass to  
the BVT5500H, use this ¼" mono jack (unbalanced). Using  
this jack will give you a lower input sensitivity as compared  
with the 0 dB jack.  
{6} MUTE button (BVT5500H only): Use this button if you want  
to tune a bass without hearing the tone. This feature mutes  
the main signal path, but not the TUNER output.  
= 5: Flat, natural bass tones that are not muddy (bass rolloff).  
(11) - (13)BASS, MID, and TREBLE controls: For each tone  
(bass, mid-range, and treble) that you can emphasize or  
de-emphasize, the BVT includes a single TONE control.  
{7} OVERDRIVE button (BVT5500H only): Use this button to  
add a distorted texture to the audio signal. This feature  
“overdrives” the BVT5500H preamp.  
Front panel  
5
 
 
ULTRABASS BVT4500H/BVT5500H  
To emphasize a tone, you can turn the relevant tone control  
toward 10 (maximum boost). Alternatively, you might con-  
sider lowering adjacent bands. To de-emphasize a tone,  
you can turn the relevant tone control toward 0 (maximum  
cut).  
(16) LEVEL fader (BVT5500H only): To compensate possible  
level changes of the equalized signal, slide this control  
between +12 and -12. At “0” level, the BVT5500H neither  
boosts nor cuts the equalized signal.  
(17) EFFECTS MIX control (BVT5500H only): If you created an  
effects loop, use this control to adjust the dry-wet mix.  
+
When you choose to cut rather than boost an audio  
signal, you protect audio equipment from high signal  
levels (clipping) and preserve valuable headroom.  
As you turn this control toward:  
= 0 (zero), you hear more of the dry signal (without effects). At  
zero, you hear only the dry signal.  
GRAPHIC EQ features  
= 10, you hear more of the wet signal (effects). At 10, you hear  
With the TONE controls ((10) - (13)) discussed above, you em-  
phasize and de-emphasize three fairly wide frequency bands.  
However, with the GRAPHIC EQ features, you can emphasize  
and de-emphasize 9 more narrow frequency bands. This lets you  
refine the sound that you created with the TONE controls. The  
GRAPHIC EQ features include (14)-(16):  
only the wet signal.  
For details about creating an effects loop, see 3. REAR PANEL  
((29) - (30)).  
MASTER features  
(18) MASTER control: To adjust the speaker volume and the  
level of the PREAMP OUTPUT, turn this control toward 0 (no  
volume/level) or, alternatively 10 (maximum volume/level).  
(14) EQ ON button: To turn graphic EQ and level features, push  
this button.  
(15) EQ faders: If you activated the frequency-band faders (14),  
you can use each one to emphasize and de-emphasize  
a specific frequency band. The center frequency of each  
frequency band is displayed directly above the relevant  
fader.  
(19) LIMITER button: The limiter reduces only the signal peaks  
that can overdrive the POWER AMP and distort the audio  
signal. The limiter prevents the BVT4500H/5500H from  
clipping these signal peaks. To activate or alternatively  
deactivate the limiter, push this button.  
To emphasize (boost) a frequency band, slide the relevant  
fader up. Alternatively, slide the faders for the surrounding  
frequency bands down.  
+
Because high signal peaks can damage loudspeakers, it  
is recommended to activate the limiter and not to play at  
full volume for a long time without ear protection.  
To de-emphasize (cut) a frequency band, slide the relevant  
fader down.Alternatively, slide the faders for the surrounding  
frequency bands up.  
(20) LIMIT LED: When the limiter is activated, this LED is  
illuminated.  
+
Cutting rather than boosting a frequency band protects  
audio equipment from high signal levels (clipping) and  
preserves valuable headroom.  
3. Rear panel  
Fig. 3.1: BVT4500H/BVT5500H rear panel  
This chapter describes how to use the rear panel of the BVT4500H  
and the BVT5500H, which includes the same features. Figure 3.1  
illustrates these features.  
+
Do not block the ventilation openings that cover the  
fan.  
PARALLEL SPEAKER OUTPUT  
+
To effectively use the jacks on the rear panel, you need  
to know about the BVT signal path. For details, refer to  
the secion “THE SIGNAL PATH”.  
Via the following jacks, you can simultaneously connect up to 3  
speakers directly to the BVT:  
(25) Two ¼" TS (mono, unbalanced) jacks.  
(21) Serial number: To register your unit, you will need this unique  
(26) A single Neutrik Speakon compatible jack, for high-power  
loudspeakers. The pin designation of the speaker is  
pins 1+ and 1-. For details, refer to the chapter “AUDIO  
CONNECTORS”.  
identifier.  
(22) Fuse compartment: For details about the appropriate fuse  
type, refer to the “SPECIFICATIONS”. See also chapter  
1.1.2. Replace this fuse only with the type specified for your  
country.  
If you use a single speaker or a high-power speaker, connect  
this speaker to the Neutrik Speakon compatible jack. To prevent  
electrical shock and ensure the correct polarity, this jack locks an  
audio plug in place.  
(23) Power connector: To power the BVT4500H/5500H, plug the  
power cord in thisAC connector. The power cord comes with  
the BVT.  
+
Before you connect speakers to the BVT4500H/5500H,  
turn it off.  
+
Attention: The POWER switch does not fully discon-  
nect the unit from the mains. Unplug the power cord  
completely when the unit is not used for prolonged  
periods of time.  
(24) Fan: This fan prevents the BVT4500H/5500H from  
overheating.  
6
Rear panel  
 
 
ULTRABASS BVT4500H/BVT5500H  
+
Your speaker cabinets should have a sufficient power  
rating (BVT4500H: > 450 W, BVT5500H: > 550 W) and  
preferably a total impedance of 4 Ω or higher. Too high  
a load impedance will decrease the output power rat-  
ing of the power stage. For details, refer to the chapter  
“ABOUT SPEAKER IMPEDANCE”.  
4. About speaker impedance  
The total impedance of the speakers that you connect to the  
BVT affects the power output of the BVT. The minimum speaker  
impedance is 4 Ω. When the total load is 4 Ω, the BVT supplies  
the optimal power.  
(27) POWER AMP INPUT: To connect an external preamplifier  
How to calculate the speaker impedance  
to the BVT, use this ¼" TS jack.  
When using more than one speaker and each connecting to an-  
other BVT speaker jack, the speakers are connected in parallel.  
To calculate the resulting total impedance of the speakers, use  
the following formula—  
(28) PREAMP OUTPUT: To connect an external power amplifier  
to the BVT, use this ¼" TS jack.  
EFFECTS LOOP jacks  
To connect the BVT4500H/5500H to an effects processor you can  
use one or, alternatively both of these jacks ((29)- (30)). Keep in  
mind that the BVT4500H and the BVT5500H do not process effects  
in the same way. For details, see “THE SIGNAL PATH”.  
—where Z1, Z2 etc. are each the impedance of a single speaker  
and Ztotal is the resulting impedance of all speakers.  
(29) RETURN jack: To send an audio signal from an effects  
processor to the BVT, use this ¼" TS jack.  
For two speakers (Z1 and Z2), the formula reads as:  
(30) SEND jack: To send an audio signal from the BVT to an  
effects processor, use this ¼" TS jack.  
Z1 Z2  
Z1 + Z2  
Ztotal  
=
LINE OUTPUT features  
To send an audio signal from the BVT to a mixer or a recording  
unit, use the LINE OUTPUT features ((31) - (34)), as follows:  
Via the formula, you get a 4 Ω load with:  
= one 4 Ω speaker  
(31) LEVEL control: To adjust the level of any LINE OUTPUT,  
turn this knob toward min (no level) or, alternatively max.  
= two 8 Ω speakers  
The value of the max setting depends on what you selected via  
the PRE/POST button (33). If you selected:  
= one 8 Ω speaker and two 16 Ω speakers  
+
As the speaker impedance decreases, the output power  
of the BVT increases. High output power can damage  
your speakers. As the speaker impedance increases,  
the output power of the BVT decreases.  
= PRE: max is ~ 0 dB.  
= POST: max is ~ 10 dB.  
(32) GND LIFT button: To manage the ground connection be-  
tween the BVT and a mixer/recording unit, use this button.  
When this button is:  
= pushed out, you maintain a ground connection that prevents  
electrostatic charges from interfering with an audio signal.  
= pushed in, you break the ground connection. Do this only when  
ground-loop hum interferes with an audio signal.  
(33) PRE/POST button: To select the type of signal you want to  
send to a mixer/recording unit, use this button.  
When this button is:  
= pushed out (PRE EQ and effects), the BVT does not apply any  
preamp features (TONE/EQ/EFFECTS) to the audio signal.  
= pushed in (POST EQ and effects), the BVT applies all preamp  
features to the audio signal.  
For details, see “THE SIGNAL PATH”.  
(34) BALANCED OUTPUT: To connect the BVT to the mic input  
on a mixer or, alternatively to a recording unit, use this XLR  
jack (balanced).  
+
Before you connect the BVT4500H/5500H to mic input  
on a mixer, turn off the phantom power on the relevant  
channel of the mixer.  
(35) TUNER OUT jack: To connect the BVT4500H/5500H to an  
electronic tuner, use this ¼" TS jack.  
To tune while muting the PARALLEL SPEAKER OUTPUTs, do  
one of the following. If you work with:  
= the BVT4500H, turn the MASTER control to 0 (minimum  
setting).  
Alternatively, you can use the tuner’s mute feature: Connect  
EFFECTS SEND (30) to the tuner input and EFFECTS RE-  
TURN (29) to the tuner output. When you:  
= activate the mute feature on the tuner, the tuner does not  
send the audio signal to the RETURN jack.  
= deactivate the mute feature on the tuner, the tuner sends  
the audio signal to the RETURN jack. The audio signal  
follows the signal path to the PARALLEL SPEAKER  
OUTPUTs.  
= the BVT5500H, activate the mute feature {6}.  
About speaker impedance  
7
 
 
ULTRABASS BVT4500H/BVT5500H  
5. Setup example  
6. The signal path  
The following illustration provides an example of how to set up  
the BVT5500H.  
This section provides what you need to know to effectively use  
the BVT control elements and connection jacks. For an overview  
of the possible paths your signal may take, refer to the illustration  
in the section “SYSTEM BLOCK DIAGRAM”.  
In general, the signal path of the BVT can be split into two  
phases:  
1) Pre-Amplification, which starts at the INPUT jack ({3},{5})  
and ends immediately at the PREAMP OUTPUT jack (28).  
2) Power amplification, which starts at the POWER AMP IN  
jack (27)and ends at the PARALLEL SPEAKER OUTPUT  
jacks ((25),(26)).  
Note that only the PARALLEL SPEAKER OUTPUTs carry a  
fully amplified signal while the other output jacks carry line-level  
signals.  
The rest of this section covers all BVT jacks and ways to connect  
your equipment to them.  
Bass Guitar  
6.1 INPUT  
High power  
amplified signal  
PURPOSE: To send an audio signal from an electric bass to the  
Line level  
signal  
BVT.  
RESULTS: The signal path begins at the INPUT jack.  
6.2 TUNER  
Line level  
signal  
PURPOSE: To send a copy of an audio signal from the BVT to  
an electric tuner.  
RESULTS: The main signal path is not affected.  
If you use the:  
= BVT4500H, you can reduce the volume of the PARALLEL  
SPEAKER OUTPUTs or use the mute feature on your tuner.  
For details, see TUNER jack (35).  
= BVT5500H, you can mute the PARALLEL SPEAKER OUT-  
PUTs and the LINE OUTPUT. For details, see MUTE button  
{6}.  
Fig. 5.1: BVT5500H setup example  
In the above example,  
6.3 LINE OUTPUT  
The characteristic of the signal at the LINE OUTPUT jack depends  
on the state of the PRE/POST switch.  
= a speaker (ULTRABASS BA810),  
= a mixer (XENYX 1832FX),  
= and a tuner (RACKTUNER BTR2000)  
are simultaneously connected to the BVT5500H.  
6.3.1 PRE  
However, you can tune without adjusting the speaker volume.  
For details, see “FRONT PANEL” (MUTE button {8}) and “REAR  
PANEL” (TUNER jack (35)).  
PURPOSE: To send a copy of an audio signal to a mixer or a re-  
cording unit without any preamp settings (TONE, EQ, EFFECTS).  
See also section 6.3.2.  
The audio signals that the ULTRABASS BA810 and the XENYX  
1832FX receive from the BVT5500H are not the same:  
RESULTS: The main signal path is not affected.  
= The ULTRABASS BA810 receives a fully amplified signal.  
6.3.2 POST  
= The XENYX 1832FX receives a preamplified (line-level)  
PURPOSE: To process an audio signal with all BVT preamp  
features (TONE, EQ, EFFECTS), and then send the preamplified  
signal to a mixer or, alternatively a recording unit.  
signal.  
You can select the type of preamplified signal (PRE or POST  
TONE/EQ/EFFECTS) that the BVT5500H sends. For details, see  
“THE SIGNAL PATH”.  
Notice that the LINE OUTPUT jack (with POST) derives the signal  
before the MASTER control. This means the output level of this  
jack is independent of the actual amplifier volume.  
Keep in mind that you can activate and deactivate the EQ sec-  
tion. In addition, the BVT4500H and BVT5500H do not process  
external effects in the same way. For details, see the section  
“EFFECTS LOOP”.  
RESULTS: The main signal path is not affected.  
8
The signal path  
 
 
ULTRABASS BVT4500H/BVT5500H  
6.4 EFFECTS LOOP  
The EFFECTS LOOP section can be used in three ways:  
7. Audio connectors  
This section illustrates the audio connectors that you need for  
the BVT jacks. For details about most BVT jacks, see the section  
“REAR PANEL”. For details about the INPUT jack, see the section  
“FRONT PANEL”.  
6.4.1 SEND and RETURN  
PURPOSE: To create an effects loop, i.e., to apply external ef-  
fects to the signal.  
RESULTS: If you use the:  
= BVT4500H, only the audio signal that enters via the RETURN  
jack continues to follow the BVT4500H signal path. The level  
of the effects has to be adjusted on the external unit.  
= BVT5500H, both the main audio signal and the audio signal  
that enters via the RETURN jack follow the BVT5500H sig-  
nal path. To adjust the dry-wet mix, use the EFFECTS MIX  
control.  
6.4.2 SEND only (BVT5500H only)  
PURPOSE: To send an audio signal from the BVT5500H to an  
effects processor.  
RESULTS: The main signal path is not affected.  
Fig. 7.1: ¼" TS connector  
6.4.3 RETURN only  
PURPOSE: To send an audio signal from an external pre-amp  
to the BVT4500H/5500H, i.e., to use the BVT as a power amp  
only.  
Speaker connector  
(compatible with Neutrik Speakon connector)  
RESULTS: If you use the:  
= BVT4500H, the INPUT jack is deactivated. The signal path  
begins at the RETURN jack.  
= BVT5500H, the INPUT jack remains active. You could e.g.,  
connect two basses to the BVT, one to INPUT and the other  
to RETURN. To adjust the balance between the two, use the  
EFFECTS MIX control.  
1+  
1+  
1-  
1-  
6.5 INSERT CHANNEL  
6.5.1 PREAMP OUTPUT  
Fig. 7.2: The connector for a Neutrik Speakon compatible jack  
PURPOSE: To process an audio signal with all BVT preamp  
features (TONE, EQ, EFFECTS), and then send the audio signal  
to an external power amp. The BVT settings affect the volume on  
the external amp.  
RESULTS: The main signal path is not affected.  
6.5.2 POWER AMP IN  
PURPOSE: To process an audio signal with an external preamp,  
and then send the audio signal to the BVT4500H/5500H power  
amp.  
RESULTS: The signal path begins at the POWER AMP IN jack.  
The signal is independent of the MASTER control.  
+
Switch off the unit before connecting an external preamp  
to POWER AMP IN.  
Fig. 7.3: XLR connectors  
Audio connectors  
9
 
 
ULTRABASS BVT4500H/BVT5500H  
8. System block diagram  
Fig. 8.1: BVT4500/5500H block diagram (Rectangles represent control elements, ovals represent jacks.)  
10  
System block diagram  
 
 
ULTRABASS BVT4500H/BVT5500H  
Power supply  
9. Specifications  
BVT4500H  
Power consumption  
100 V~ 50/60 Hz: 6 A; 120 V~ 60 Hz:  
5 A; 220 V~ 50/60 Hz: 3 A; 230 V~  
50/60 Hz: 3 A  
Audio Inputs  
BVT4500H  
Input  
¼" mono jack, unbalanced (0 dB)  
approx. 1 MΩ, unbalanced (pad 82 kΩ,  
unbalanced)  
Mains voltage / Fuse  
100/120 V~ (50/60 Hz)  
220/230 V~ (50/60 Hz)  
Mains connector  
Input impedance  
T 10 A H 250 V  
T 6.3 A H 250 V  
Return  
¼" mono jack, unbalanced  
approx. 100 kΩ, unbalanced  
¼" mono jack, unbalanced  
approx. 100 kΩ, unbalanced  
Standard IEC receptacle  
Input impedance  
Power amp input  
Input impedance  
BVT5500H  
Power consumption  
Mains voltage / Fuse  
100/120 V~ (50/60 Hz)  
220/230 V~ (50/60 Hz)  
Mains connector  
max. 550 W  
BVT5500H  
Input  
T 8 A H 250 V  
2 x ¼" mono jack, unbalanced (0 dB /  
-15 dB)  
approx. 1 MΩ, unbalanced / 82 kΩ,  
T 4 A H 250 V  
Standard IEC receptacle  
Input impedance  
unbalanced  
Physical/weight  
Return  
¼" mono jack, unbalanced  
approx. 100 kΩ, unbalanced  
¼" mono jack, unbalanced  
approx. 100 kΩ, unbalanced  
BVT4500H  
Dimensions (H x W x D)  
Input impedance  
Power amp input  
Input impedance  
approx. 26.8" x 16.1" x 13.7" (approx.  
680 mm x 408 mm x 348 mm)  
Weight  
approx. 47.5 lbs (approx. 21.5 kg)  
Audio Outputs  
Loudspeaker connectors  
BVT5500H  
Dimensions (H x W x D)  
2 x ¼" TS jack, 1 x professional  
speaker connector (compatible with  
Neutrik Speakon connectors)  
approx. 26.8" x 16.1" x 13.7" (approx.  
680 mm x 408 mm x 348 mm)  
Weight  
approx. 47.9 lbs (approx. 21.7 kg)  
Load impedance  
min. 4 Ω  
BEHRINGER is constantly striving to maintain the highest professional standards.  
As a result of these efforts, modifications may be made from time to time to existing  
products without prior notice. Specifications and appearance may differ from those  
listed or illustrated.  
System data  
BVT4500H  
Output power  
Peak power  
Tone control range  
Bass  
450 W  
±12 dB @ 50 Hz  
±7 dB @ 700 Hz  
±18 dB @ 5 kHz  
MID  
Treble  
Graphic EQ range  
33 Hz  
±15 dB  
±10 dB  
±8 dB  
±8 dB  
±8 dB  
±8 dB  
±8 dB  
±10 dB  
±12 dB  
80 Hz  
150 Hz  
300 Hz  
600 Hz  
900 Hz  
2 kHz  
5 kHz  
8 kHz  
BVT5500H  
Output power  
Peak power  
Tone control range  
Bass  
550 W  
±12 dB @ 50 Hz  
MID  
+7 dB @ 800 Hz / -7 dB @ 400 Hz  
±18 dB @ 5 kHz  
Treble  
Graphic EQ range  
33 Hz  
±15 dB  
±10 dB  
±8 dB  
±8 dB  
±8 dB  
±8 dB  
±8 dB  
±10 dB  
±12 dB  
80 Hz  
150 Hz  
300 Hz  
600 Hz  
900 Hz  
2 kHz  
5 kHz  
8 kHz  
Specifications  
11  
 
 
ULTRABASS BVT4500H/BVT5500H  
10. Warranty  
2. If the product needs to be modified or adapted in order to comply  
with applicable technical or safety standards on a national or local  
level, in any country which is not the country for which the product was  
originally developed and manufactured, this modification/adaptation  
shall not be considered a defect in materials or workmanship. The  
warranty does not cover any such modification/adaptation, irrespec-  
tive of whether it was carried out properly or not. Under the terms of  
this warranty, BEHRINGER shall not be held responsible for any cost  
resulting from such a modification/adaptation.  
§ 1 Other warranty rights and national law  
1. This warranty does not exclude or limit the buyer’s statutory rights  
provided by national law, in particular, any such rights against the seller  
that arise from a legally effective purchase contract.  
2. The warranty regulations mentioned herein are applicable unless  
they constitute an infringement of national warranty law.  
3. Free inspections and maintenance/repair work are expressly ex-  
cluded from this warranty, in particular, if caused by improper handling  
of the product by the user. This also applies to defects caused by nor-  
mal wear and tear, in particular, of faders, crossfaders, potentiometers,  
keys/buttons, tubes, guitar strings, illuminants and similar parts.  
§ 2 Online registration  
Please do remember to register your new BEHRINGER equipment right  
read the terms and conditions of our warranty carefully. Registering  
your purchase and equipment with us helps us process your repair  
4. Damage/defects caused by the following conditions are not covered  
by this warranty:  
claims quicker and more efficiently.  
Thank you for your cooperation!  
= improper handling, neglect or failure to operate the unit in  
compliance with the instructions given in BEHRINGER user  
or service manuals.  
§ 3 Warranty  
1. BEHRINGER (BEHRINGER International GmbH including all  
BEHRINGER subsidiaries, except BEHRINGER Japan) warrants  
the mechanical and electronic components of this product to be free  
of defects in material and workmanship for a period of one (1) year*  
from the original date of purchase, in accordance with the warranty  
regulations described below. If the product shows any defects within  
the specified warranty period that are not excluded from this warranty  
as described under § 5, BEHRINGER shall, at its discretion, either  
replace the product by providing a new or reconditioned product or  
repair the product using suitable new or reconditioned parts. In the  
case that other parts are used which constitute an improvement,  
BEHRINGER may, at its discretion, charge the customer for the ad-  
ditional cost of these parts. In case BEHRINGER decides to replace  
the product, this warranty shall apply to the replacement product for  
the remaining initial warranty period, i.e one year* from the date of  
purchase of the initial product.  
= connection or operation of the unit in any way that does not  
comply with the technical or safety regulations applicable in  
the country where the product is used.  
= damage/defects caused by force majeure or any other condition  
that is beyond the control of BEHRINGER.  
5. Any repair or opening of the unit carried out by unauthorized per-  
sonnel (user included) will void the warranty.  
6. If an inspection of the product by BEHRINGER shows that the  
defect in question is not covered by the warranty,  
7. Products which do not meet the terms of this warranty will be re-  
paired exclusively at the buyer’s expense. BEHRINGER will inform the  
buyer of any such circumstance. If the buyer fails to submit a written  
repair order within 6 weeks after notification, BEHRINGER will return  
the unit. Costs for freight and packing will be invoiced separately  
C.O.D. When the buyer has sent in a written repair order such costs  
will also be invoiced separately.  
2. If the warranty claim proves to be justified, the product will be  
returned to the user freight prepaid.  
§ 6 Warranty transferability  
3. Warranty claims other than those indicated above are expressly  
excluded.  
This warranty is extended exclusively to the original buyer (customer of  
retail dealer) and is not transferable to anyone who may subsequently  
purchase this product. No other person (retail dealer, etc.) shall be  
entitled to give any warranty promise on behalf of BEHRINGER.  
§ 4 Return authorization number  
1. To obtain warranty service, the buyer (or his authorized dealer) must  
call BEHRINGER during normal business hours BEFORE returning  
the product. All inquiries must be accompanied by a description of  
the problem. The buyer or his authorized dealer will receive a return  
authorization number.  
§ 7 Claim for damages  
Failure of BEHRINGER to provide proper warranty service shall not  
entitle the buyer to claim (consequential) damages. In no event shall  
the liability of BEHRINGER exceed the invoiced value of the product.  
* Customers in the European Union please contact BEHRINGER  
Germany Support for further details.  
2. Subsequently, the product must be returned in its original shipping  
carton, together with the return authorization number. The return ship-  
ment address will be indicated by BEHRINGER.  
3. Shipments without freight prepaid will not be accepted.  
§ 5 Warranty regulations  
1. Warranty services will be furnished only if the product is accom-  
panied by a copy of the original retail dealer’s invoice. Any product  
deemed eligible for repair or replacement under the terms of this war-  
ranty will be repaired or replaced.  
Technical specifications and appearance are subject to change without notice. The information contained herein is correct at the time of printing. BEH-  
RINGER accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph or  
statement contained herein. Colors and specifications may vary slightly from product. Our Products are sold through authorized dealers only. Distributors  
and dealers are not agents of BEHRINGER and have absolutely no authority to bind BEHRINGER by any express or implied undertaking or representation.  
This manual is copyrighted. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including  
photocopying and recording of any kind, for any purpose, without the express written permission of BEHRINGER International GmbH.  
ALL RIGHTS RESERVED. © 2007 BEHRINGER International GmbH, Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Muenchheide II, Germany. Tel.  
+49 2154 9206 0, Fax +49 2154 9206 4903  
12  
Warranty  
 
 

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