MCM Electronics

Professional Home/Studio Stereo Preamplifier By Pyramid (PR2500) MCM Part #555-4051

4.5 stars 2 reviews

Specifications Top

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.

  • 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
    Part Numbers
    MCM Part #:555-4051
    Pyramid Part #:PR2500
    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
  • Product Reviews Top

    • by john123456

      on 6/23/2015

      good pre amplifier

      Overall: 4 out of 5
      Top 25 Contributor

      for a basic pre amplifier, this one is fairly good....... it seems well built, the switches/knobs work smoothly.... unbalanced input, several to choose from.... several things would make this unit a better design.... add xlr inputs and outputs, add a larger power supply, with a grounded wire to the unit, add a headphone jack in the front panel, change the color and modify the front panel design for a better sleek appearance..... it looks somewhat old-fashioned..... if the manufacturer would do that.... it would be better.............. but, for the price it is well worth it.....

    • by rbaltozer

      on 9/27/2012

      Pyramid pre.amp. stk.555-4051

      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.