BBE B-Max T Class A Tube Bass Preamp.

The B-Max T is a tube bass preamp/ processor with a class A, DC regulated tube preamp section which follows in the tradition of the classic tube preamp designs of the 50s and 60s. (BMAX-T)

  • Recording studio
  • Live concerts
Features include
  • High voltage (300V) tube front end with hand-picked Groove Tubes 12AX7 tube, providing pre-amp gain and passive interactive tone control
  • High-end DI section is transformer-balanced with a genuine Jensen transformer
  • 1% metal film resistors
  • Military-spec PC board
  • Custom-made toroidal power transformer
  • Frequency response @ line out
    • 15Hz to 30kHz ±3dB
  • Signal to noise ratio
    • 100dB @ unity
  • Total harmonic distortion (THD)
    • Tube section: 1%
    • Post-tube section: less than 0.02%
  • Maximum output
    • +22dBu
  • Noise
    • -77dBu @ unity gain, eq flat
  • Input impedance
    • Passive: 1M Ohm
    • Active: 100k Ohms
  • Output impedance
    • Balanced XLR: 600 Ohms, pin #2 hot or “+”
    • Unbalanced ¼”: 1k Ohms
  • Interactive EQ
    • Treble (boost only): 15dB @ 6kHz
    • Mid (cut only): 15dB @ 300Hz
    • Bass (boost only): 15dB @ 40Hz
  • Bright switch
    • +10dB @ 10kHz, eq flat
  • Para-mids
    • ±12dB from 250Hz to 1kHz (* 0dBu=0.775mVrms)
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