Manley Massive Passive Mastering Version

A massive passive stereo tube eq

Colossal, timbre-twisting passive equalization using metal-film resistors, film capacitors, and hand-wound inductors to organically sculpt the tone from subtle to vivid. Manley’s tube stages handle huge HF boosts without sibilance and unbelievable fatness without mud. “It’s like a Pultec on steroids.”

Each band can be bypassed or set to boost or cut. This provides twice the control resolution over conventional EQs. It also eliminates the problem of a center detent not guaranteeing flat response.

Each band is capable of 20 dB of boost or cut combined with amazing headroom and freedom from clipping.

Steep LP and HP filters for maximum effectiveness and achieved passively for minimal coloration. Low Pass Filters get progressively steeper as the frequency point rises. All of the High Pass Filters, and the Low Pass 6K, 7K5, and 9KHz Filter slopes are 18 dB/octave, the Low Pass 12kHz filter has a 24dB/octave slope and the 18kHz filter has a 60 dB per octave slope.

Transformer balanced floating outputs for ease of installation and a touch of desirable flavor. These too were custom designed for the Massive Passive to accommodate the huge boosts possible.

MASTERING VERSION 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
- HP and LP Filters
- STEPPED GAIN trims -2.5 to +2.5dB in 11 steps of 1/2dB each
- Metal Manley mechanically detented GAIN and BANDWIDTH control knobs

PSU operates on 90V-254V. EU power cord included.

Inputs: Balanced XLR & 1/4” (accepts unbalanced)
Outputs: Balanced XLR (accepts unbalanced) & Unbalanced 1/4”
Level +4 dBu nominal
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 : 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
Auto-mute warmup delay = 20 seconds
Power Consumption (120/240VAC): 44 watts
Mains Voltage & Frequency (VAC/Hz): Internal Universal Power Supply 90-254 VAC / 50-60Hz
Mains Voltage Frequency: 50~ 60Hz
Size (3U): L 19” x W 10” x H 5.25”

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

VAT (Value Added Tax) can be deducted if you have a company with a valid EU VAT number or if you're based outside of the EU. Non-EU buyers pay all and any import tax and duty as regulated by their local customs.