The Massive Passive is a 3U, rack-mount, 2-channel, 4-band tube equaliser with additional high and low pass filters. It exploits passive circuitry to deliver a fantastically musical EQ, suited both to the radical EQ sometimes needed for tracking and the more subtle shadings for vocals and mastering.

• Passive tone sculpting circuitry

• Unique Shelf curves use the bandwidth control

• Overlapping and Interleaved Frequency choices

• Shelf / bell EQ type

• Vacuum tube make-up gain and line drivers

• Balanced XLR & 1/4″ I/O

• Bypass Switch

• Frequency Range – 22Hz to 27kHz

• 20dB boost / cut

• Variable Q

• Mastering version available