Welcome to our online store!

My Cart:

You have no items in your shopping cart.


John Hardy Custom 10-Channel Microphone Mic Preamplifier M1 #42744

Availability: In stock




BRAND: John Hardy

MODEL: 10-Channel 

FUNCTION: Microphone Preamplifiers

PRODUCT DESCRIPTION: This listing is for a custom 10 Channel Mic preamp rack built by John Hardy for a studio here in Los Angeles known as Group IV Recording back in the late 70's and into the 90's.  Group IV specialized in Film and Orchestral recordings as it was owned and head by one of Hollywood's premier film mixers, Dennis Sands. The studio was also known for numerous big time Jazz artists and had an extensive discography in this field.

This mic preamp rack is likely a one-of-a-kind piece not to be seen again. We are selling it directly on behalf of the owner, Dennis Sands. 


  • Channels: 10
  • Phantom Power
  • Phase Reverse (polarity invert)
  • Mute
  • Connectivity: XLR (Male/Female)

ACCESSORIES INCLUDED: This item includes the rack power supply.

PHYSICAL CONDITION: Very Good - In great condition. However, there are a few scuffs around the device but nothing beyond normal wear. Otherwise, everything is intact, looking nice, and in good solid shape. The overall physical condition is very good. 

WORKING CONDITION: Very Good - All channels are working and sound great. We just had it serviced and cleaned. Overall working condition is very good.


UNPACKAGED DIMENSIONS: 19" x 10.75" x 11.5"

The Techno Empire Guarantee

We at Techno Empire love gear as much as you do and want you to be very happy with your purchase. We offer a 100% SATISFACTION GUARANTEE as part of our commitment to making sure you keep coming back for more incredible and inspiring gear. Buy with confidence with our stellar customer service, innovative trade-in programs and purchase incentives, along with an enterprise-grade secure website and ultra-safe checkout process.