Manley Massive Passive Stereo Tube Equalizer

The Massive Passive is a passive, parallel-topology tone shaper with all-tube make-up gain and line drivers. Because its four bands per channel sit in parallel rather than in series, you can apply massive boosts without clipping the output stage. It delivers incredibly musical results that tolerate extreme settings without sounding processed.

Key Features:

• Parallel Symmetrical Topology: 4 bands per channel with heavy overlapping (22 Hz–1 kHz, 82 Hz–3.9 kHz, 220 Hz–10 kHz, 560 Hz–27 kHz) for curves no single-band EQ can match.
• 44 Selectable Frequencies: Ranging from 22 Hz up to an "air-inducing" 27 kHz, with ±20 dB of boost or cut per band.
• Unique Bandwidth Control: Adjusts Q in bell mode, but uniquely reshapes shelf slopes—creating a highly musical, adjustable bell-shaped dip when switched to shelf mode.
• All-Tube & Iron Path: Driven by vacuum tubes and custom Manley IRON transformers. Built with metal film resistors, film capacitors, and hand-wound inductors.
• Comprehensive Filtering: Independent High-pass (22–220 Hz) and Low-pass (6–18 kHz) filters per channel, plus a -6 to +4 dB gain trim.
• Versatile I/O: Balanced XLR and 1/4" inputs/outputs, with hard-wire true bypass per channel.

Worldwide Power:

• Manley Power® Universal Supply: Accepts 90–254 V AC, 50/60 Hz. This unit works anywhere in the world straight out of the box with just a standard IEC cable—no step-down transformer or rewiring required.

Condition: Outlet Stock (Excellent) This unit is in excellent condition