This amplier must be earthed. Please check that the supply voltage details given on the
rating label (located on the rear panel) are in ac
cordance with your electricity supply .
This switch turns the amplier on or off .
INPUT: This is the input socket into which the mains power cable must be connected. This
amplier is supplied
with a power cable with a moulded-on plug. If the socket outlets in the home are not
for this plug, use an appr opriate plug adapter that can handle the power required for the amplier .
In the event of the power f use having to be r eplaced, rst unplug the power cable from
outlet. Then remove the fuse cover and replace the power fuse with another fuse of the same
and v alue. Never plug the power cable back into the mains outlet without the fuse cover . If the power
blows up again when powering on the amplier , take the apparatus to a suitable service centre for
INPUT: This is a line level 1/8” (Ø 3.5 mm) mini stereo jack into which an MP3/CD/T ape
player may be connected.
OUT: This 1/4” (Ø 6.3 mm) mono jack output can be connected directly to a mixing desk or a
more powerful amplifying system.
This is a 1/4” (Ø 6.3 mm) standard jack output to connect the headphones. When
headphones are connected, no sound is produced from the speaker
INPUT: Plug your keyboard in here, using the Left and Right 1/4” (Ø 6.3 mm) jack
for stereo sound sources, or the Left input alone for mono sound sources. We recommend that
always use high-quality shielded cables to prevent any background noise interference or unwanted
Here you can plug in a microphone, using an XLR cable.
MICVOLUME: This control determines the output volume for the microphone channel.
MICREVERB: Use this regulate to dose the amount of reverb effect y ou want on the microphone.
INSTRUMENTGAIN: This control determines the gain level for the k eyboard channel.
INSTRUMENT COMPRESSION: This control reduces the dynamic range of the output signal and
out the changes in volume that occur according to how hard you play your keyboard. Adding
compression will make your keyboar
d sound smoother and clearer .
TREBLE: This control determines the level of high frequencies in the output signal. Adding treble will
make the keyboard sound brighter and sharper
MIDDLE: This control determines the level of middle frequencies in the output signal. Adding mid will
make your keyboard sound r
ounder and fuller .
PARAMETRIC MIDDLE: Parametric mid is a more sophisticated way of boosting or cutting middle
frequencies. In a
traditional EQ, the frequency area that is boosted or cut is xed. With a parametric mid
EQ, this f
requency area is adjustable from mid low to mid high. Use this knob to select the required range
of middles, then use knob #
6. to determine the level of the selected range of mid f requencies.
BASS: This control determines the level of low frequencies in the output signal. Adding bass will make
your keyboard sound warmer and hea
MASTER: This control determines the over all volume of the amplier .
Is lit up when the amplier is switched on.
USER’S MANUAL KBA 40 KBA 40
4 5 6 7 8 9 1 0 TECHNICAL SPECIFICATIONS
40W RMS @ 8Ω load / 8” W oofer w/ Coaxial T weeter
45Hz to 15kHz
- 58dB (@ max. Rated P ower)
240Ω (Mic) / 30kΩ (Instrument)
12mV (Mic) / 35mV (Instrument)
65dB (Mic) / 68dB (Instrument)
38 x 37 x 26cm / 15 x 14.6 x 10.2in.
12.4kg / 27 .3lb