This Manley Massive Passive Stereo Tube EQ (#MSMPX3476) is the 2020+ model that uses the new Manley Power power supply. Local San Francisco Bay Area sale only, no shipping (will deliver for local sale). The tubes are in great shape and have many years of life left in them.

This 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. You'll need to experience this.

Creating natural, organic, acoustic tone can only be done with an equalizer that treats the signal with natural methods. The Massive Passive uses simple passive components and exploits their natural qualities rather than forcing a complex circuit to meet an arbitrary clinical or scientific goal. Manley knows that recording and mastering equalizers are used by artists for artistic goals and they balanced this design with a little more art than science. The Massive Passive is intended both for the most radical EQ sometimes needed for tracking as well as the most subtle shadings for vocals and mastering. It is designed to be a fundamentally different EQ but incorporates the best strengths of Pultecs, choice console EQs, parametrics and graphics. The difference is that the Massive allows twice as much EQ with half the coloration. It allows huge HF boosts without sibilance problems and unbelievable fatness without mud. This is unique. Being different also gives it some quirks and idiosyncrasies that will spark your creativity and sense of audio adventure.

FEATURES:

• 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
• Passive HP and LP Filters plus gain trims
• Specifications:
• 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; +26 dBv @ 20 Hz
• THD & Noise (1 kHz @ +4 dBu): 0.06%
• Noise Floor (referred to +4 dBu): -85 dB (A Weight)
• Dynamic Range: 120 dB
• Power Consumption (120/240 VAC): 72 watts
• Unit is factory set for 100 V, 120 V or 220-240 VAC 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~ 60 Hz
• Size (3U): 19" x 5.25" x 10"
• Weight: Unit 21 lbs. Shipping Weight: 27 lb