Skip to main content Skip to footer

On Sale
Warm Audio Logo

Warm Audio WA-12-500 MK2 500 Series Microphone Preamp

  • Write a Review

If you are looking for a preamp to improve and shape your signal you will love the WA12-500 MKII. The WA12-500 MKII transforms plain instruments and ...Click To Read More About This Product

Expected to Ship 01-15-2020
Order to reserve yours today - No charge until it ships
Gold Coverage: (What’s This?)
    Warranty Options

  • Regular Price:
  • Your Savings:
  • On Sale Today:
    - $100.00
  • Shipping (48 Contigous U.S. States)
  • Sale Price:
Reserve Now
Add to Wish List

Earn up to 1,595 reward points.


A 500 rack mic pre with replaceable 6-pin opamp sockets.

If you are looking for a preamp to improve and shape your signal you will love the WA12-500 MKII. The WA12-500 MKII transforms plain instruments and vocals into exciting tone. If your mixes lack depth, struggle to sound alive, or are just missing that professional touch you’ve always wanted, there is a good chance you will appreciate the WA12-500 MKII.

​The WA12 - 500 MKII is a completely discrete, high voltage, dual-transformer microphone preamplifier designed for high gain (+71dB), high headroom, low noise, and an exciting sonic performance. A high-quality mic preamp is one of the most critical pieces needed to achieve the elusive ‘larger than life’ sound the WA12 - 500 MKII delivers.

The WA12 - 500 MKII is based around a discrete op-amp, the X731, which is Warm Audio’s own reproduction of the vintage classic Melcor 1731, considered by some to be the warmer predecessor to the modern 2520-style op-amp. The X731 can achieve vibrant, clean and lifelike tones; but can also be driven into mild saturation at much higher gain levels. The effects can be subtle, but very pleasing to the ear. The WA12 - 500 MKII can also accept any discrete op-amp on the market which conforms to the +/-16v, 2520 pinout standard.

When developing the WA12-500 MKII, Warm Audio’s design team’s ears played a big part in the design process. Using CineMag USA transformers and an all discrete signal path ensured that the WA12-500 MKII would have the building blocks to compete with the best preamps on the market.

MPN: WA12-500 MKII
  • Utilizes premium grade input and output USA CineMag transformers
  • 71db of Gain, fully discrete signal path
  • 6-pin socketed 1731 style opamp that can be replaced with other 6-pin opamps
  • TONE button – Switches the input impedance from 600 ohms to 150 ohms. Changes the tone of both the mic and HI-Z inputs
  • 2 Meg Ohm True HI-Z input on front panel. Sends instrument signal through entire circuit including both Cinemag Transformers and the discrete opamp
  • Great for guitars, bass, keyboards and other instruments that have a 1/4″ output jack
  • 48 volt Phantom Power
  • Output attenuation control (after the CineMag output transformer) allows for driving the preamp and transformers into saturation
  • LED Meter gain indication
  • 20db pad

A key piece of studio gear. Order soon.

This oversized item has special shipping requirements


Questions & Answers View All
Questions & Answers

© Woodwind & Brasswind. All rights reserved.     Terms & Conditions | Privacy Policy | Accessibility Statement

You are changing the Ship-To country.

Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.