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M0070 Professional Bass Preamp with EQ and DI (Preproduction Units)

Front view of M0070 Preamp

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 These pre-production models are functionally identical to the final version. They have had minor electrical rework to make them meet specifications. Also, the enclosures are perhaps not quite as “nice” as they could be. For this reason they are being sold at a substantial discount to the price of our production units. They still come with a full one year warranty to the original owner. They may also be available on eBay from time to time. The M0070 is our first product designed for the double bass. It is a preamp that was designed from the ground up to meet the requirements of acoustic double bass players, though it works equally as well for other lower register acoustic instruments. It has exceptional headroom, distortion and noise performance yet is small enough to mount almost invisibly under the tailpiece, where all controls are within easy reach.

Check out these specifications:

  • Small
Approximately 4.75” x 1.5” x 1.6”
  • Lightweight
Under 5 oz. including battery
  • Low distortion
Approximately 0.03% (1 kHz at -14 dBu)
  • High headroom
Approximately 13 dBu (1 kHz at 0.5% distortion)
  • Low noise
Approximately 25 microvolts, C-msg weighted
  • Low power
Over 100 hours using a 9 V alkaline battery

They have pretty much all the controls you need:

  • Adjustable input gain (-6 to 6 dB)
  • Volume control
  • Rumble-cut (adjustable high-pass filter to cut unwanted frequencies below those generated by your bottom string)
  • 3-band equalizer optimized for the double bass
  • Phase reversal switch
  • Direct Out with 8 dBu of output capability into 600 ohms (1 kHz at 0.5% distortion)
  • Pre/Post Eq switch for Direct Out
  • 1 megohm / 10 megohm input impedance switch
  • Ground Lift switch

Compare the specifications and features of these preamps with any on the market. Value for money, I'm confident you can't do better!

For further info, please download the M0070 User Guide.

For suggestions on how to mount the M0070 on your instrument, please download the Installation Guide.