format_quote The Massive Passive is a passive design and not a "true parametric". A true parametric implies non-interacting controls. In the Massive Passive, the "GAIN" and "BANDWIDTH" controls DO interact (on purpose). We cannot create a "GAIN" switch that is set up for "consistent" 1/2 dB steps. When you change the "BANDWIDTH" the step size must and will change. On the regular version, you get a full 20dB boost or cut only when: the bandwidth is fully clockwise (narrow) in bell mode or fully counter-clockwise in shelf mode. Here on the Mastering Version, this maximum boost or cut is 11dB. Conversely at the widest bell, the maximum boost or cut is 6dB and the narrowest shelf maxes out at 12 dB. A similar situation is also true for the bandwidth detents. So in this new Mastering Version, do not expect a certain dB change per step as it will vary according to where the bandwidth is set. But whatever the step sizes are, they will be repeatably 16 steps. The FREQUENCY select is already detented as it is and always has been a Grayhill switch. It also interacts in shelf mode.
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
format_quote US parcels are shipped fully insured with DHLExpress and they usually arrive within 2-3 working days from pickup day zero.
EU parcels arrive within 4-6 working days and are shipped with DPD or ACE Logistics.
You are also most welcome to pick up your order from Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.
We ship worldwide! Contact us for a personal shipping quote or if you have any questions.
VAT (Value Added Tax) is deducted if you have a company with a valid EU VAT number or if you're based outside of EU. Non-EU buyer pays all and any import duty and tax as regulated by your local customs.
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”
Retrosonic Pro Audio focuses on selling high end pro audio equipment – from the best of vintage gear to the new boutique equipment. We can provide complete studio projects, studio equipping projects or packages including acoustic constructions, design and project management.
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