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The M73 is based on the coveted 1290 preamp circuit used in modules like the 1073, 1081,1084. They have an incredibly smooth character and just seem to make everything you send thru them sound even better. 

The M73 is a dual channel, three stage, all discrete, Class A, transformer coupled preamp. The M73 utilizes an all discrete transistor design and offers a Direct Input on both channels as well as Phantom, Phase, Pad and Impedance switching.

The three stages of amplification provide the user with 80 db of gain at the output via a Grayhill stepped attenuator. The M73 also offers an impedance switch at the microphone input between 300 ohms and 1.2k. The higher impedance is really nice for Ribbon microphones but works well as a color option as well. We use Carnhill UK transformers to keep the sounds as close as is possible to the original.

These beautiful Dual Channel Class A Hot Rod preamps are handmade here in our shop in the USA and are completely hand wired like all of our models.

The Vintage Audio M73 utilizes my custom designed MU73 dual channel preamp boards and has excellent on board filtering and Ac ripple knockdown. 

Our M73 model comes with a full Two year warranty and is built to the highest standard using the highest quality components.

  • Direct inputs on both channels
  • Remote Relay switched: pad, and phase for lower noise floor.
  • Impedance switching between 300 and 1.2k ohms
  • By Vintage Audio Products
    48Volt phantom is on board for condensers and other studio microphones.
  • Transformer coupled inputs and outputs.
  • Original Carnhill Uk Transformers.
  • Variable input via a Gray Hill Stepped attenuator
  • Variable output control that allows the user to adjust the output stage for the amount of output hitting the output transformer.
  • High quality Panasonic, Vishay and Wima parts for all PCB mounted components.

Each unit is new, hand assembled and wired and under-goes a grueling 24 hours of consistent audio pummeling for burn in and overall break in.  

My parents taught me to invest my money wisely and that I shouldn't simply be buying something, I should be investing in something. As my dad was heard to say after a long debate over the new fridge " I only want to buy this fridge once!"

We understand that Audio is your business and is an investment. I have designed all of our preamps and compressors not only to sound second to none but to last for years and years to come.

These are handmade here in our shop in the USA!

Free shipping inside the continental US, Add $25 for HI, PR

Contact us for a shipping quote if you are not inside the continental US.

Premium components including:
  • Vishay Dale resistors,
  • Panasonic FC capacitors,
  • Vishay, Ceramic Caps
  • Handpicked Hfe Transistors, Canare cabling,
  • Grayhill attenuator switch,
  • HoneyWell conductive plastic  potentiometers,
  • Carnhill UK input and output transformers,
  • MU2448v power supply with superb filtering
  • Avel Lindberg power transformer (110-240vac based on destination).

Warranty covers parts and labor but not users error, please make sure you read all necessary literature prior to hooking devices up and before you apply signal or power as devices can become damaged in this way, Most items will be return shipped to customers within 48 hours of receiving them upon inspection and repair..No money back will be given as warranty only covers the repair of the item warranted