In excellent shape. Only ever kept in my smoke free, dust free studio. Hasn't seen too much use in the time I have had it. Moving it along to fund other purchases. You probably know what this does. I have the original box too. 7 K new. I would consider trades for other high end studio gear, great mics, etc...
The MASSIVE PASSIVE is a two channel, four band equalizer, with additional high pass and low pass filters. "Passive" refers to the tone shaping part of this clever new EQ design not using any active circuitry. Only metal film resistors, film capacitors and hand-wound inductors sculpt the sound, kinda like a Pultec EQ on hyper-steroids. Super-beefy, hugely-high-headroom Manley all-tube make-up gain amplifiers deliver your tunes into the next realm. "Massive".... it's a fitting word for this beast.