FRONT PANEL
1) INPUT - Plug your bass in here. We recommend that you always use a high-quality shielded cable to
prevent any background noise interference or unwanted feedback.
2) VOLUME -
This control determines the level of the input signal going into the amplifier.
3) PASSIVE/ACTIVE -
When released (or off), this selector switches the INPUT of the amplifier to a high
impedance (sensitivity) circuit, suitable for basses with PASSIVE electronics. When pushed in (or on), it
connects the INPUT to a low impedance (sensitivity) circuit, suitable for use with ACTIVE basses.
4) TREBLE - This control determines the level of high frequencies in the output signal. Adding TREBLE will
make your bass sound brighter and sharper.
5) MID - This control determines the level of middle frequencies in the output signal. Adding MID will
make your bass sound rounder and fuller.
6) BASS - This control determines the level of low frequencies in the output signal. Adding BASS will make
your bass sound warmer and heavier.
7) COMPRESSION - This control reduces the dynamic range of the output signal and evens out the
changes in volume that occur according to how hard you play your instrument. Adding COMPRESSION will
make your bass sound smoother and clearer.
8) MASTER -
This controls the overall listening level of the amplifier. Adjust it to your preferred level.
9) CD/MP3 INPUT -
This is a line level 1/4" (Ø 6.3 mm) stereo jack into which an MP3/CD/Tape player
may be connected.
10) EFX SEND -
This amplifier is equipped with an effects loop which allows you to plug effects between
the preamp and the power amp. The EFX SEND jack is a line level 1/4" (Ø 6.3 mm) output jack into which
you may connect one or several outboard effects, eg Flanger, Delay, Chorus etc. The EFX SEND should be
connected to the input jack of the first effect in your chain.
11) EFX RETURN -
This is a line level 1/4" (Ø 6.3 mm) input jack into which you should connect the
output jack of the last effect in your chain. The effects loop may also be used with a multi-effects rack
system, or with a single effect.
12) BALANCED OUT - This front panel XLR socket drives a post E.Q, post effects, balanced output signal
for connecting directly to one of the Balanced Microphone inputs of a mixing console.
13) POWER LED -
When this red LED is lit, the amplifier is ready to work. When it is off, it means the
amplifier is powered off.
Features and Specifications are subject to change without notice.
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USER MANUAL
USER MANUAL
500 BAH - 500 BA115
500 BAH - 500 BA115
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STAGG 500 BAH & STAGG 500 BA115
STAGG 500 BAH & STAGG 500 BA115
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500 BAH
500 BA115
BACK PANEL
WARNING
This amplifier must be earthed. Please check that the supply voltage details given on the rating label
(located on the rear panel) are in accordance with your electricity supply.
1 POWER SWITCH -
This switch turns the amplifier on or off.
2 POWER FUSE -
In the event of the power fuse having to be replaced, first unplug the power cable from
the mains outlet. Then remove the fuse cover and replace the power fuse with one of the same type and
value. Never plug the power cable back into the mains outlet without the fuse cover. When powering on
the amplifier, if the power fuse blows up again, go to a suitable service centre for repair.
3 MAINS INPUT - This is the input socket into which the mains power cable must be connected. This
amplifier is supplied with a power cable with a moulded-on plug. If the socket outlets in the home are
not suitable for the plug supplied with this amplifier, use an appropriate plug adapter that can handle the
power required for this amplifier.
4 VOLTAGE SELECT - This switch selects the chosen voltage level between 110-120VAC and 220-
240VAC as appropriate. This switch may be accessed by unscrewing the safety cover. Always make sure
that the selected voltage level is in accordance with your electricity supply.
5 SPEAKER OUT - The 500 BAH head features two external speaker sockets to connect one (or two)
external Speaker Cabinet(s) providing the total load impedance is not lower than 8 Ohms, while the 500
BA115 combo allows you to plug one external Speaker Cabinet only with a minimum load impedance of 16
Ohms, i.e: Stagg 300 BC115 (1x 15”) and Stagg 300 BC410 (4x 10”), 300W RMS/16Ω Speaker Cabinets
for bass amplifiers.
TECHNICAL SPECIFICATIONS
500 BAH EU+UK
500 BA115 EU+UK
Description
500W Bass Amp Head
500W Bass Combo
and 1x 15" Speaker
Max. Rated Power
500 Watts RMS @ 8 Ohms
500 Watts RMS @ 8 Ohms
Speakers (N * Ø/ P/ Z)
1 x 15"/ 300W/ 16 Ohms
External Speaker Out
2 x SPK
1 x SPK
Minimum Load
8 Ohms
16 Ohms
Frequency Response
40 Hz to 20 kHz
40 Hz to 20 kHz
Total Harmonic Distortion
0.5%
0.5%
Signal to Noise Ratio
- 68 dB @ max Rated Power
- 68 dB @ max Rated Power
Input Impedance
220k Ohms
220k Ohms
Power Consumption
900 Watts max
900 Watts max
Maximum Input Level
45 mV RMS
45 mV RMS
Maximum Gain
47 dB @ 1 kHz
47 dB @ 1 kHz
Dimensions (H x L x P)
23.5 x 73 x 38 cm
72.5 x 73.5 x 38 cm w/o casters
Dimensions (H x W x D)
9.2 x 28.7 x 15 in
28.5 x 28.9 x 12.2 in w/o casters
Weight
29.5 kg / 65.0 lb
55.3 kg/ 121.9 lb
