Manley Massive Passive Mastering Equalizer


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  • Manley has made a mastering engineer's version of the Massive Passive without breaking your bank account! This EQ is supposed to be somewhat different from any EQ you may have used before, and is based on the requests of numerous end users of the original Massive Passive EQ. Like the Manley Variable MU, you'll find the Massive Passive can easily make anything sound better. Mastering engineers will love the mechanically detented knobs for the GAIN and BANDWIDTH controls. They are a clever two-part metal design using a ball and spring detent system. They ensure repeatability and a good, positive feel, without the incredible cost and space problems tons of Grayhill switches would have caused.


    • All-Passive tone sculpting circuitry
    • Unique Shelf curves use the bandwidth control
    • Overlapping and Interleaved Frequency choices
    • Every band switchable to shelf or bell
    • Vacuum tube make-up gain and line drivers
    • Parallel symmetrical topology
    • Premium components throughout
    • HP and LP Filters plus gain trims
    • Metal Manley mechanically detented GAIN and BANDWIDTH control knobs
  • 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)
    EQ 44 Frequencies (roughly 1/4 octave spacing)
    Frequency Range 22 Hz to 27 Khz
    EQ Boost/Cut Range Maximum 11dB boost or 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 12AU7, 4 x 6414
    Power Consumption (120/240VAC) 72 watts
    Voltage Rating 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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