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WONKO/MUSIC

Ampeg BA-115

The Ampeg BA-115 is a 1x15-inch bass combo amplifier with a 100 W rated output into a 4-ohm load.

What it is

The BA-115 is a bass combo with a single 15-inch speaker and a piezo tweeter. Its front panel has 0 dB and -15 dB inputs, Gain, Master, a five-position Style control, Treble, Ultra Mid, and Bass controls, a CD input, headphone output, line out, and a power switch. The owner's manual retrieved for this entry is dated 05/99 and is titled BA115 Bass Amplifier Owner's Manual. The owner describes this unit as the original BA-series model, as distinct from the v2. The manual does not use either label, so the distinction rests on the owner's confirmation and has not been verified from a source. Several retailer listings describe the v2 as 150-watt, while other listings give 100 watts without a version label.

Specifications

Output
100 W at 4 ohms
Speaker
15-inch, 150 W, 4 ohm, 2.5-inch voice coil, 56 oz magnet, plus piezo tweeter
0 dB input
Maximum 1.75 V RMS
-15 dB input
Padded, maximum 9.75 V RMS
CD input
RCA, maximum 5 V RMS
Line out
120 mV RMS
Headphone out
3.75 V RMS
Gain
39 dB
Style
Five positions: 1 = -25 dB at 500 Hz; 2 = -12 dB at 500 Hz; 3 = flat; 4 = +5 dB at 2 kHz and up; 5 = -6 dB at 50 Hz and below
Treble
40 dB range at 10 kHz
Ultra Mid
30 dB range at 500 Hz
Bass
36 dB range at 50 Hz
Power
70 VA; 120 V, 230 V, or 100/115 V, 50/60 Hz
Dimensions
21 in W x 21 in H x 15-1/2 in D
Weight
62 lb

How it's used

The manual states the intended use of the inputs: the 0 dB input suits passive basses, and the -15 dB input suits active electronics or hot pickups. The CD input is summed to mono before the power amplifier. Typical use in published sources was not confirmed.

Suggested usage

Sources