The WA12-500 MKII is a completely discrete, high voltage, dual-transformer microphone preamplifier design with high gain (+71dB), high headroom, low noise, and an exciting sonic performance – great for all types of recording applications. A high quality mic preamp is one of the most critical pieces needed to achieve the elusive ‘larger than life’ sound, and the WA12-500 MKII is more than capable of delivering.

The WA12-500 MKII is based around a discrete op-amp, the X731, which is our 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 that conforms to the +/-16v, 2520 pinout standard.

Specifications

• Premium grade input and output USA CineMag transformers.
• 71db of Gain, fully discrete signal path.
• Utilizes a discrete 6-pin socketed 1731 style opamp. Can be replaced with other 6-pin "2520 foot-print" opamps for varying tone/flavor.
• 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.