WA12-500 MKII

Raising The Volume

The 500 Series WA12-500 MKII Dual-Transformer Microphone Preamplifier from Warm Audio is designed for high gain (+71 dB), high headroom, and low noise. It is suitable for all types of recording applications. It is based around a discrete op-amp, the X731, considered to be the 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 WA12-500 MKII can also accept any discrete op-amp, which conforms to the ±16V, 2520 pin out standard.

Technical Specifications

• UTILIZES PREMIUM GRADE INPUT AND OUTPUT USA CINEMAG TRANSFORMERS.
• FULLY DISCRETE DESIGN WITH A ROBUST 71DB OF GAIN.
• UTILIZES A DISCRETE 6-PIN SOCKETED 1731 STYLE OPAMP. CAN BE REPLACED WITH OTHER 6-PIN "2520 FOOT-PRINT" OPAMPS FOR VARYING TONE/FLAVOR.
• 20DB PAD.
• EXTERNAL 24V AC POWER PLUG. CURRENT DRAW: 800MA.
• TONE BUTTON – SWITCHES THE INPUT IMPEDANCE FROM 600 OHMS TO 150 OHMS. CHANGES THE TONE OF BOTH THE MIC AND HI-Z INPUTS.
• MIC LEVEL BALANCED INPUT: XLR.
• BALANCED OUTPUTS: XLR AND 1/4″/TRS.
• 48 VOLT PHANTOM POWER.
• LED METER GAIN INDICATION.
• 2 MEG OHM TRUE HI-Z INPUT ON FRONT PANEL. SENDS INSTRUMENT SIGNAL THROUGH ENTIRE CIRCUIT INCLUDING BOTH CINEMAG TRANSFORMERS AND DISCRETE OPAMP.
• GREAT FOR GUITARS, BASS, KEYBOARDS AND OTHER INSTRUMENTS THAT HAVE A 1/4″ OUTPUT JACK.
• OUTPUT ATTENUATION CONTROL (AFTER THE CINEMAG OUTPUT TRANSFORMER) ALLOWS FOR DRIVING THE PREAMP AND TRANSFORMERS INTO SATURATION.

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