MCM Electronics

Professional Home/Studio Stereo PreamplifierMCM Part #: 555-4051  |  Pyramid Part #: PR2500

Professional Home/Studio Stereo Preamplifier 4.5 stars from 1 review.
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May be used on a tabletop or mounted in a rack, making it suitable for professional or high end home use. Front panel includes an input for microphone, with level control. Rotary controls adjust volume, loudness, bass, treble and midrange. Other features include hi/low filter, stereo/mono mode selector. Push buttons select from up to five inputs labeled Tape, Tuner, CD, Aux and Phono. All inputs accept standard line level, except phono input which accepts low level for magnetic cartridge.

Product Description

  • Input sensitivity: •Mic: 0.5mV/600ohm •Phono: 3mV/47Kohm •Others 150mV/47Kohm
  • Output level: •Tape out: 150mV/100Kohm •Pre out: 500mV/4Kohm
  • THD: <0.4%
  • Frequency response: 5Hz~30KHz
  • Connections: Mic input: 1⁄4", all others RCA type female
  • Power requirement: 120/220VAC 50~60Hz
  • Dimensions 19" (W) x 23⁄8" (H) x 81⁄2" (D)
  • Mfr. #PR-2500

  • Product Reviews

    • "Pyramid pre.amp. stk.555-4051" by rbaltozer on 9/27/2012
      Overall: 4.5 out of 5

      This unit produces excellent sound quality.Tone controls work nicely.Variable loudnessis a plus. I don't care for the stepped volume control because it limitsyour ability to get the volume exactly where you want it. I would like to see an update of this unit with a switched power outlet for a power amp.

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    Package Specifications & Dimensions
    Weight:7.062 lbs.
    Warranty:90 days
    Need to Return?
    Length:20.25 in.
    Width:11.25 in.
    Height:4.5 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages

    MCM Cat 57, Page 010

    MCM Cat 56, Page 171

    PDF Reference

    Requires Adobe Acrobat Reader.

    Mfr. Info

    Pyramid Logo
    Mfr. Name:Pyramid
    Mfr. Part Number:PR2500