For sale: 2026 API 3124V 4-channel Microphone Preamp

Discrete 4-channel Mic/Line/Instrument Preamp with 65dB Gain Range, Variable Output, and Transformer Tap Selection

Less than an hour of use time, fully functional. No known issues. Was powered on and audio ran through each channel just prior to this posting. There maybe a few minor scratches in the top and bottom metal case, but nothing very noticeable. Includes power cord that came with the preamp.

Purchased new by me in March of 2026. Has been racked since it arrived, but with less of an hour of use time. I've run into a significant delay in pulling my home studio together and financial pressure are causing the sale of a few preamps.

Extremely disappointed to have to sell, but with the increasing prices here's a opportunity to own a game-changer of a preamp at hundreds less of listing price. I am offering to cover shipping... For reference, the posting fees are over $200. for this listing.

Here are a few other details for this preamp:

API 3124V 4-channel Mic/Line/Instrument Preamp Features:

• Legendary API discrete circuitry
• Uses classic API 2520 op-amps
• Variable-output level control
• 3:1 output transformer tap selection
• 4 rear-panel female XLR mic inputs
• 4 front-panel 1/4" hi-Z instrument inputs
• Front-panel polarity-reverse switches, per-channel
• Front-panel -20dB pad switches, per-channel
• Front-panel mic/instrument switches, per-channel
• Front-panel 48V power switches, per-channel
• Rear-panel XLR channel outputs

Tech Specs

Preamp Type:

Solid State

Number of Channels:

4

Phantom Power:

Yes

Analog Inputs:

4 x 1/4" (Hi-Z), 4 x XLR (mic)

Analog Outputs:

4 x XLR

Rack Spaces:

1U

Power Source:

Standard IEC AC cable

Depth:

11"

Weight:

10.38 lbs.

Manufacturer Part Number:

3124V