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 which conforms to the +/-16v, 2520 pinout standard.
Utilizes 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.