The Manley Massive Passive is a stereo equaliser. Engineers praise it for its excellent control of the mid range - great for taming harshness in the upper mid frequencies and general mid-range balancing of a mix, as well the way in which is can add an 'expensive' layer of pristine air on the top end, as well as filtering or low end or broadly sculpting the lower mids.

The Massive Passive is a two channel, four band equalizer, with additional high pass and low pass filters. It's passive design allows the Massive Passive to deliver a transparent sound even when pushed to its limit. Passive equalizers work by shaping the sound through the use of metal film resistors, film capacitors and hand-wound inductors, as opposed to active circuitry which can impart artefacts to the original signal. The result is a unit which produces twice as much EQ with half the coloration.

The Massive Passive is designed to be a fundamentally different EQ, incorporating the best strengths of Pultecs, choice console EQs, parametrics and graphics.

The Massive Passive allows for up to 20dB of gain boost or reduction. Its shaping flexibility is extensive, with all four bands switchable between bell and shelf modes and unique shelving curves offered by the bandwidth control and as such, has become a favorite in mastering studios.

Unlike most EQs, the Massive Passive is a prized asset in both mixing and mastering contexts. Few units are able to offer both the shaping and enhancing to suit individual instruments or subgroups as well as the subtlety and transparency demanded in mastering, something the Massive Passive delivers with utmost class.

Ins & Outs Balanced XLR & 1/4" (accepts unbalanced)

Level +4 dBu nominal, internal switches for -10 operation

Bypass Switch bypasses EQ & tube circuits (not hardwire)

44 Frequencies (roughly 1/4 octave spacing)

Frequency Range: 22 Hz to 27 kHz

EQ Boost/Cut Range : 20 dB boost, 20 dB cut

Nominal Q range: 1.5 to 3 (uniquely active in shelf modes)

Frequency Response: ±2 dB: 8 Hz to 60 KHz

Maximum Output @ 1.5% THD +37 dBv; +26dBv @ 20 Hz

THD & Noise (1KHz @ +4 dBu): 0.06%

Noise Floor (referred to +4dBu): -85 dB (A Weight)

Dynamic Range: 120 dB

Tube Complement: 2 x 12AX7 EH, 4 x 6414 for serial MSMPX### after 2/2004

Tube Complement: 2 x 5751, 4 x 6414 for serial MSMP### until 2/2004

Power Consumption (120/240VAC): 72 watts

Unit is factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.

Operating Mains Voltage changeable with power transformer changeover switch and fuse value change.

Mains Voltage Frequency: 50~ 60Hz

Size (3U): 19" x 5.25" x 10"

Weight: Unit 21 lbs. Shipping Weight: 27 lbs.

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