Pete’s Place Electrodyne 501


500 Series PreAmp

- or -
Buy Now with Westlake Pro Credit Card
Special 12-Month No-Interest Financing
Westlake Pro Best Price Guarantee Badge

We will beat any price. Learn more »

  • FREE 2-Year Warranty Included
  • |
  • FREE Shipping
  • |
  • Expert Service
SKU: ADEPPE501 Categories: , Brand:

The Electrodyne 501 is a two stage discrete transistor, transformer coupled preamp with active DI, using classic 1969 / 1970 design technology. Each amp stage is individually optimized for peak performance using Electrodyne factory engineering notes and selected high performance components identical to the originals. The transformers are made by Electrodyne’s original manufacturer to exacting factory specifications. The active DI circuit presents an almost immeasurable load to sensitive musical instrument outputs allowing incredibly accurate capture of the instruments true tone. The output of the DI circuit is designed to directly connect and interact with the mic input transformer to allow maximum tone options.
Maximum Gain: 68db. Adjustable over 50db in 2db steps with two ranges using 20db pad.
Output level control: Infinitely adjustable from 0 (off) to +6db over unity.
Input impedance: Microphone, 50 / 200 ohms selectable. DI, over 7 megohms.
Output impedance: 150 ohms
Distortion: 0.02%typical over entire gain range.
Maximum output: +30db at less than 0.8%thd. (+29.5db at 0.06%thd)
Frequency response: +/- 0.25db, 10hz to 60khz.
Signal to noise: -80db typ, -60db at absolute maximum gain.
Clip indicator: Monitors all three amp stages and illuminates

Additional information

Weight 10 lbs
Dimensions 5 x 5 x 16 in
Low Pass


High Pass




Through Output


Output Attenuator


Phantom Power




Phase Reverse


Direct Input



There are no reviews yet.

Be the first to review “Pete’s Place Electrodyne 501”

Your email address will not be published. Required fields are marked *

You may also like…