by Lasse Eilers | 4,5 / 5,0 | Approximate reading time: 2 Minutes
API 3122V

API 3122V dual-channel microphone preamp  ·  Source: API


API has announced the 3122V 2-channel microphone preamplifier. Based on the same classic circuit design as the 3124V/3124MV and 512V/512c/312, the new 3122V is a dual-channel version that slots nicely between the company’s 4-channel models and their single-channel lunchbox modules. It also adds a fixed-frequency high pass filter.


API 3122V microphone preamp

API says that the new 3122V mic preamp is a dual-channel solution designed for those who need something between the 4-channel 3124V and the individual lunchbox modules. With circuitry based on the same design found in the 3124V, including 2520 op-amps, AP2516 input transformers and proprietary output transformers, the 3122V is a dual-channel microphone preamp in a single unit of rack space.

Compared to the 3124V, API’s engineers have squeezed an additional 3 dB of gain out of the circuit (68 dB compared to 65 dB on the 3124V). You also get a variable output control, polarity switch, phantom power and -20 dB PAD per channel, as well as the 3:1 output transformer tap option. Another addition compared to the 3124V is a switchable fixed-frequency high pass filter at 50 Hz. And they’ve put the extra available front panel real estate to good use by giving the 3122V vintage-style, analog VU meters.


In addition to the microphone inputs on the back, there are XLR-1/4” combo jacks on the front panel, which can be activated with a switch and accept microphone or Hi-Z instrument signals.

With two channels of classic API amplification, the new 3122V is a great choice if you’re looking for a dual-channel solution, but don’t want to deal with 500-series modules.

API 3122V

Rear panel

Price and availability

API says that the 3122V microphone preamp is now shipping. The price is listed as USD 2195 (MSRP).

More information about the API 3122V

Image Sources:
  • API 3122V rear panel: API
API 3122V

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