0% up to 48 Months on over 110 Brands!

New & Current Vintage King Card Holders

Shop Our Summer Sale

0% financing up to 48 Months on over 110 Brands!

When you shop now with your Vintage King Credit Card.

$ 2,085 .25
Your Savings: $ 109 .75 Msrp: $ 2,195 .00
No interest if paid in full within 18 months Learn more
Ships directly from API Audio
Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details. This item ships directly to you from the manufacturer. To ensure that the manufacturer currently has stock, please chat, call or email for the latest availability status.



Please note: this item is available for purchase in the United States only.

API 3122V 2-Channel Microphone/Line Preamp

Compact, high-quality 2-channel preamplifier combining API's proprietary transformers and 2520 op-amp for classic API sound, reliabilty, and uniformity

MFR# 3122V Mic Pre

Product Description

Combining two channels of legendary API 312 Series preamps with additional features and controls, the API 3122V delivers classic API sound with more flexibility than ever. API’s proprietary transformers and renowned 2520 op-amps deliver the same expressive tone as the original API 312 preamp heard on countless hits since the 1970s, while its extended feature set makes it versatile enough for any studio. The 3122V packs a ton of character into a single rack space, making it the perfect centerpiece for streamlined project studios or a powerful tool in the racks of professional facilities.

Beyond the sound, the real strength of the 3122V is its enhanced suite of controls and thoughtful utility features. Switchable front and rear inputs allow you to have both channels hard-wired to your patch bay while giving you the flexibility to plug a mic or instrument straight into the front XLR combo jack when inspiration strikes. When using the ¼” input, the Hi-Z switch provides optimal performance for instrument-level signals.

The familiar gain control provides up to 68 dB of amplification for microphones or 48 dB for instruments, with discrete increments that make it easy to precisely recall settings. The continuously variable output knob lets you fine-tune the output level, making it possible to crank the gain and get the most out of the preamp without overloading the next stage of your signal chain. For even more flexibility, the 3:1 output transformer tap selector switch (a staple of the 312 Series) enables you to drive the preamp for additional saturation without overloading other modules in your signal chain.

Rounding out the 3122V are all the standard features you expect to see on a professional preamp: 48V phantom power for condenser microphones, -20 dB pads for taming loud input sources, polarity switches that invert the phase of the signal and high-pass filters that reduce frequencies below 50Hz by 12 dB per octave. Both channels feature classic API-style analog VU meters that light up with a warm glow so you can keep an eye on your levels.


  • 2 Channels of Classic API Circuit Design
  • API 2520 and Output Transformer
  • Proprietary AP2516 Input Transformer
  • Variable Output Control
  • Fixed Frequency High Pass filter
  • Vintage Style Analog VU Meters
  • 3:1 Output Transformer Tap Selection
  • Two Switchable front or rear XLR Input
  • Front panel 1/4" Hi Z Instrument Input
  • Front panel mic/instrument selection switch
  • Front panel polarity switch
  • Front panel 40V power switch
  • Front panel -20 dB pad switch
  • Peak LED
  • Maximum 68 dB of gain

Product Specifications

Condition New
Tube or Solid State Solid State
Channels Dual-Channel
Chassis 19-inch Rack-mount
Rack Spaces 1U
Input Connectors Analog XLR, XLR Combo Jack TRS
Output Connectors Analog XLR

Product Reviews

No one has written a review yet. Be the first!

* Required Fields

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the API 3122V 2-Channel Microphone/Line Preamp . Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.