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The BMAX-T Tube Bass Guitar Preamplifier from BBE Sound is a versatile tube preamp and processor for studio recording and live concert applications. It can be used with both passive and active pickup instruments. The BMAX-T circuitry includes a Class A, DC regulated tube preamp section, built in the tradition of classic tube preamp designs of the '50s and '60s. It features a high voltage 300V tube front end with a 12AX7 tube which provides preamp gain and passive interactive tone control. The DI output is transformer-balanced with a Jensen transformer. The BMAX-T contains a three-band EQ, an optical "soft-knee" compressor, and a full-functioning Sonic Maximizer. Both the compressor and the Sonic Maximizer can be switched on and off either via the front panel or with an optional FS-BMAX footswitch (sold separately).
All-tube Class A front end with three-band EQ and "bright" switch
Features Groove Tubes 12AX7 preamp tube
Inputs for both passive pickup and active pickup instruments
Jensen JT-DB-E transformer-balanced DI output
Includes a full-function BBE Sonic Maximizer
Optical "soft knee" compressor
Custom toroidal power supply transformer
Ground lift switch
Balanced XLR and unbalanced 1/4" outputs
Built-in effects loop
In the Box
BBE Sound BMAX-T Tube Bass Guitar Preamplifier
Limited 5-Year Warranty
Limited 6-Month Warranty on Tube
Table of Contents
15 Hz - 30 kHz +/-3 dB
Signal-to-Noise Ratio (SNR)
100 dB @ unity
Tube Section: 1% Post-Tube Section: Less than 0.02%
-77 dBu @ unity gain, EQ flat
Passive: 1 MOhm Active: 100 kOhms
Balanced XLR: 600 Ohms, pin #2 hot or "+" Unbalanced 1/4": 1 kOhm
Treble (boost only): 15 dB @ 6 kHz
Mid (cut only): 15 dB @ 300 Hz
Bass (boost only): 15 dB @ 40 Hz
Bright Switch: +10 dB @ 10 kHz, EQ flat
Para-Mids: +/-12 dB from 250 Hz to 1 kHz (0 dBu = 0.775 mVrms)