Offer extended! Up to 36 months promotional financing* on qualified products! Offer ends 10/23. For more info, click here.

John Hardy Co. M-1 Mic Preamp Four Channel

Professional mic pre utilizing premium Jensen components

View more products from:

John Hardy Co.
Included with your purchase:
  • Free Shipping (USA)
  • Free Tech Support
  • Free Extended Warranty
Our Price: $2,905.00

12-month financing with the Vintage King credit card

Ships directly from John Hardy Co. fast!

We have special arrangements with John Hardy Co., ensuring expedient shipping directly from their location to you. They're generally pretty quick, but Email, chat or call 888.653.1184 for estimated ship date.

Need expert advice? Click here.

Product Description
Additional Information
  • Product Description

    The M-1 mic preamps are among the finest mic preamps in the world. They provide the accuracy and transparency that is missing in other mic preamps. No matter what your application, they will provide superior sound quality. The world's best input transformer (Jensen JT-16-B), best op-amp (990 discrete op-amp) and the elimination of all capacitors from the signal path combine to provide the highest performance.

    The M-1 has a 19" wide mainframe rack-mount chassis (1.75"H x 19"W x 8"D) and can be ordered with 1 to 4 channels. There are two meter options and the best Jensen output transformer (JT-11-BMQ) is also available as an option. Additional channels and options can be easily added later up to the total capacity of the mainframe.

    The M-1 was introduced in 1987 and while sonically identical to the M-2 there are a few control differences. The M-1 has a two-section gain-pot providing continuously variable adjustment in two overlapping ranges that are selected by the "High Gain" switch. (The M-2 has a 16 position gain-switch with 1% metal-film resistors providing accurate and repeatable gain settings and since the "High Gain" switch isn't necessary it's available with either a 20 ohm mic switch OR a 20dB pad switch.)


    • JT-16-B Input Transformer
    • 990 discrete op-amp - faster, quieter, more powerful and better sounding than typical monolithic op-amps
    • Elimination of all coupling capacitors from the signal path - results in less degradation of the audio signal


    • Dual range gain control and 'high gain' switch - provides great feel and resolution for easy and accurate adjustments
    • Polarity reverse switch
    • Phantom power switch
    • All front panel switches are LED illuminated
    • Gold plated XLR connectors
    • Ground lift switch on each channel - helpful for eliminating ground loops
    • Toroidal power transformer with additional shielding - eliminates hum problems so no external power supply is needed
    • Universal power supply - internal switch provides six primary voltage choices to accommodate use anywhere in the world
    • Chassis ground isolation switch - helpful for eliminating ground loops


    • VU-1 - Very accurate and informative 20 segment LED meter card with separate peak LED for monitoring preamp output
    • PK-1 - Peak LED metering only (not required if VU-1 is installed)
    • JT-11 - BMQ output transformer
    • Pin 2 Or pin 3 high - can be ordered either way and internal jumpers make changes in the field easy
  • Additional Information

    Condition New
    Channels 4-Channel
    Chassis 19-in. Rackmount
    Rack Spaces 1u
    Direct Input No
    Digital I/O No
  • Reviews

    This product currently has no reviews.

    Write Your Own Review

    Only registered users can write reviews. Please, log in or register