Hughes Kettner Stereo Amplifier Preamp Recording Amp User Manual

O
N
TONE=  
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INSTRUCTION MANUAL  
for s elect in g  
Hu gh es  
The Hughes  
&
Kettner BATT has been developed in  
conjunction with bass manufacturer ESH and German  
bassist Peter Sonntag. It has been fine-tuned to meet  
the requirements of demanding bass players. The  
BATT is a compact “Bass Sound Machine” which  
enables you to obtain great tube tone with the utmost  
of ease. The tone controls are very effective and  
precise, and the boost functions offer instanteanous  
access to several fundamentally different kinds of  
sound. A full complement of connecting jacks make  
the BATT ideal in a broad range of applications from  
rehearsal to studio to stage.  
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CONTROLS AND CONNECTION JACKS  
INPUT: The BATT has two input jacks, on the front and one at the back The  
input sensitivity of both are equal, and either can accommodate active or passive  
basses. The front panel input has priority, i.e. Instrument Input 2 on the back is  
automatically disconnected when the front panel jack is in use.  
GAIN: The gain potentiometer controls the input level and thereby the sound  
characteristics of the preamp tubes. At low gain settings the BATT imbues the bass  
with warmth and fullness, and at medium levels delivers a fairly raw rock punch.  
From center settings onward, depending on the output level of the instrument  
itself, the preamp tubes add more and more harmonic distortion, thus intensifying  
the sound of the bass with characteristic tube overdrive.  
MASTER: The MASTER control affects the overall output level of the signal at  
the LINE OUT and INSTRUMENT OUT jacks (assuming the TUBE/BYPASS  
switch in the back of the unit is in TUBE position), but does not affect the PA  
OUT, the  
OUT, which remains a constant line-level signal, nor the SPEAKER  
volume of which is controlled soley by the GAIN.  
sweep the  
TONE: The control labeled TONE is a “one-knob tweaker” which can  
entire frequency range from powerful “cellar-bass” to the most transparent highs.  
Left of center (range from 30 Hz to 150 Hz), the low end will be boosted by a  
preset amount between + 4 dB to  
+
18 dB. In the center position both the bass  
and the treble receive a slight boost. Roight of center (range from 3 KHz to 15  
KHz) the high end receives an ever- increasing amount of boost ranging from + 4  
dB to + 22 dB, with a simultaneous reduction in bass.  
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BOOST SWITCHES: The three black pushbutton-switches for Bass, Mid, and  
Treble, are specially contoured to offer a dramatic amount of tonal control  
instantaneously.  
BASS: Boosts the frequency range from 80 to 400 Hz by approximately + 6 dB,  
bringing out fundamentals more strongly and adding a clearly audible “punch” in the  
low bass region.  
MID: Boosts the range between 500 Hz and 2 KHz by approximately  
+
2
dB adding  
clarity to the attack of each note, and providing the necessary penetration in band  
situations.  
TREBLE: Boosts the entire frequency range between 1 KHz and 20 KHz by  
approximately + 8 d B This emphasizes the harmonics inherent in the instrument,  
adding bite and sparkle overall. The TREBLE boost in combination with the TONE  
control is capable of producing some extraordinarily bright sounds.  
LINE P R E POST POWER AMP With this switch, to the right of the three boost  
/
switches, you can select whether the signal appearing at the LINE OUT jack is tapped  
immediately after the preamp tube, or whether it goes through the power amp tube as  
well Your choice will have a considerable effect on the overall sound. By fine tuning  
the GALN and MASTER controls while using alternate settings of this switch, you can  
uncover further sound variations, from clear, to gritty, to growlly, to all-out overdrive.  
TUBE AMP  
/
BYPASS SWITCH: This switch on the back of the unit will  
normally be set to TUBE. The LED next to the INPUT on the front panel will  
confirm this by being illuminated in tube mode and dim in bypass mode. In normal  
operation the signal runs through the tube section and appears at the LINE OUT,  
SPEAKER OUT, PA OUT, and INSTRUMENT OUT jacks. In bypass mode, the PA  
OUT jack is inoperative, thus allowing you in a live situation to tune up or swap  
instruments easily without being heard by the audience through the house system. The  
TUBE/ BYPASS function can also be switched using a conventional on-off footswitch.  
O N  
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AMP FOR ALL SEASONS:  
The Bass Advanced Tube Technology Amp  
/
Preamp possesses a versatile array of  
jacks making the BATT at home in every conceivable situation, be it stage, studio,  
or practice. You can connect it to any speaker cabinet directly and use it as a  
practice amp head. You can connect it directly to a mixing console or multitrack  
recorder and use it as a studio quality bass preamp. You can connect it to a power  
amp and bass cabinet, using it as a live preamp. Or you can add it to an existing  
bass rig. (The BATT with its Advanced Tube Technology will breathe life into any  
sterile amp!)  
S P EAKER OUT:  
the SPEAKER OUT jack on the rear  
panel of the unit is specially designed for  
direct connection to any desired speaker  
cabinet. The built-in 5 watt valve power  
amp (EL 84) is more than adequate for  
home practice or accompaniment. Like  
the signals for the other outputs, the  
SPEARER OUT can be switched to PRE  
or POST power amp: it delivers the same  
level whichever option is selected  
PA OUT:  
for connecting to the stage box during  
live gigs where a PA system is being used.  
The PA OUT signal delivers a constant  
LINE LEVEL SIGNAL and is therefore  
unaffected by the MASTER pot setting.  
However, gain, tone control and boost  
functions are still operative. When the  
TUBE BYPASS switch is in BYPASS  
/
position, the PA OUT jack receives no  
signal, thus making it convenient to tune,  
or change basses.  
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BATT a s a  
LINE OUT:  
used to feed the power amplifier when  
the BATT is acting as a preamplifier in a  
complete rig. The output from the BATT  
is connected to the input of the power  
amplifier, and the output of the power  
amp is connected to the speaker cabinet.  
The LINE OUT signal can also be used  
as an alternative to the INSTRUMENT  
OUT jack when connecting the BATT to  
an external preamp, although it is impor-  
tant to ensure correct level matching.  
INSTRUMENT OUT:  
The INSTRUMENT OUT is designed as  
a signal path for connecting the BATT to  
an external amp or preamp, or for  
connecting two BATT preamps together.  
In TUBE position, the GAIN MASTER  
/
section and the tone controls can be used  
to control the signal. In BYPASS, the  
signal is preamplified but unaffected by  
the tone control setting.  
IN THE STUDIO:  
To feed a signal directly from the BATT  
to a line input on the mixing console or  
tape recorder, you have a choice of three  
outputs: the PA OUT (in which case the  
signal level is independent of the  
MASTER volume setting), the LINE  
OUT, and the INSTRUMENT OUT. No  
space or volume problems, no miking  
hassles, just full-bodied sound is available  
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in an instant.  
RACK MOUNTING  
used as a stand-alone preamp or as an extension to an existing system. Hughes  
Kettner offer special single and twin adaptors to faciliate 19” rack mounting.  
/
BASS MASTER STAGEBOARD: The BATT can be  
&
A
Sound Machines STAGEBOARD is optionally available for easy on-stage  
switching of two units (Unit1 Unit 2  
/
/
Bypass ).  
THE STAGE/LIVE SET-UP  
FOOTSWITCH:  
A jack for connecting  
the BATT  
STAGEBOARD, designed to faciliate  
on-stage switching between different  
sounds such as two different BATTs.  
The INSTRUMENT OUT socket of the  
first unit is connected to the INPUT of  
the second. The second unit‘s LINE  
OUT jack is then used to control the  
amplifier/speaker combination for the  
stage sound. The PA OUT signal of each  
unit can be connected to a separate  
channel on the mixing console, and the  
STAGEBOARD connected to both can  
switch between the two.  
PLEASE NOTE: VALVES NEED TO REACH THEIR CORRECT OPERATING  
TEMPARATURE FOR THIS REASON, THE BATT NEEDS A FEW MOMENTS TO  
WARM UP AFTER SWITCHING ON BEFORE IT IS READY FOR USE.  
VALVES GENERATE HEAT,MAKESURETHATTHE AIRVENTSARE  
NOT BLOCKED.  
HOT VALVES ARE SENSITIVE TO SHOCKS. ALLOW THE UNIT TO COOL OFF  
BRIEFLY BEFORE MOVING IT. AVOID J OLTING THE BAIT DURING  
OPERATION.  
TECHNICAL DATA: POWER RATING: APPROX 25 WATTS  
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INPUT SENSMTY: 300 mV/  
-
10 dB  
FUSE VALUE: 315 mV  
/
SLO-BLO.  
BATT SUGGESTED CONFIGURATION  
The sounds suggested here can only be rough indication, as they will vary  
considerably depending on the instrument used and your playing technique. Once  
you have set-up a basic sound which you like, the boost functions and the pre/post  
power amp switch provide instant access to different sounds.  
1. “STRAIGHT ROCK”:  
For raw valve sounds, turn gain little over half way. MID BOOST is activated,  
LINE PRE/POST switched to POST power amp.  
@T R E B L E  
2. “SLAP ATTACK”:  
.
Set GAIN between 4 and 5, emphasize the bass region with the tone control  
,
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activate BASS and TREBLE BOOST and set the switch to POST POWER AMP.  

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