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Marani DGP-231QR Professional Digital Multi-Filter 31-Band Stereo Equalizer

B&H # MADGP231QR Mfr # DGP231QR
Usually ships in 3-7 business days

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This item is usually Drop Shipped from the MFR/Distributor within 3-7 business days (subject to availability). Your order will be charged at the time of placing the order with the MFR. Item is non-cancelable and non-returnable.
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You Pay: $449.00

The Marani DGP-231QR Professional Digital Multi-Filter 31-Band Stereo Equalizer features a high precision set of 31 filters for each channel, selectable within a large set of different filter types such as Peaker, Hi/Low Pass Ist/2nd Order, Hi/Low Pass variable Q, Hi/Low Shelving Ist/2nd Order, Hi/Low Shelving with variable Q, Ist/2nd Order All Pass, Notch and Band Pass. This powerful professional Equalizer also provides Hp/Lp filters up to 24 dB/Oct, Delay and RMS Compressor, and Peak Limiter for improving the sound defition and dynamic behavior. The equalizer has 32 available memories with 8 factory presets and 24 user memory presets. The equalizer comes with a PC-run remote control software. It can be remotely controlled by a RS-485 connection or by an USB port with ease.

2 x 31-band parametric filters selectable within a set of peaker, Hi / Low pass (Ist / 2nd order), Hi / Low pass variable Q, Hi / Low shelving Ist / 2nd order, Hi / Low shelving with variable Q, Ist / 2nd order all pass, notch and band pass
Each filter can be singularly selected and bypassed for the convenience of adding / removing
Hp / Lp filters up to 24 dB/Oct for each channel
RMS compressor on each channel
Peak limiter for each channel
Independent channel gain, phase control, delay, and mute on each output channel
Inputs XLR balanced
Outputs XLR balanced
Load 150 Ω (minimum)
Memory User & Recall: 24
VU Meter 7 LEDs for inputs (-20 up to +15 dBu, clip)
7 LEDs for outputs (-20 up to +15 dBu, clip, limit) 1
Please Note:

Output LEDs can be used for displaying the output level or the limiter activity.

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THD + N 0.001% at 1 kHz, 0 dBu
S/N Ratio >110 dB
Frequency Response 20 Hz to 20 kHz, -0.5 dBu at 20 Hz and 20 kHz
SPDIF SPDIF Input Gain (Digital): 0 dBu on an RCA connector
Resolution Process Resolution:
Dream SAM3716 DSP, 24 x 32-bit for filtering process
96 bits resolution on intermediate computation results
Converters 1 x AK5392,24-bit A/D
3 x AK4396, 24-bit D/A
Display Graphic 2 x 20 characters
Processes Bell, 1st / 2nd Ord Shelvings with -3 dB at cutting frequency, symmetrical shelving with variable Q, Hp / Lp with variable Q, 1st / 2nd Ord, all pass (90 / 180° phase rotation at the cutting frequency), bandpass and notch on inputs / outputs, delay, Hp / Lp, RMS compressor, and peak limiter on outputs
Parametric Equalizer 31 filters on each channel
Filter Type All Eq Filters are assignable as bell, 1st / 2nd Ord shelvings with -3 dB at cutting frequency, symmetrical shelving with variable Q, Hp / Lp with variable Q, 1st / 2nd Ord, all pass (90 / 180° phase rotation at the cutting frequency), bandpass, and notch
Gain Filter Gain: For bell and shelving the gain is ranging from -15 up to +15 dBu by 0.5 dBu resolution steps
Center Frequency Selectable with a 1/24th of octave resolution steps from 20 Hz up to 20 kHz
Filter Q/BW: Q from 0.05 up to 3 by 0.05 resolution steps
Crossover X-Over HPF: Butterworth, Linkwitz / Riley, and Bessel filters up to 24 dB/Oct or custom selectable Hp / Lp up to 24 dB/Oct configurable by the user as cascade of 2nd Ord cells adjustable in freq and Q
X-Over LPF: Butterworth, Linkwitz / Riley, and Bessel filters up to 24 dB/Oct or custom selectable Hp / Lp up to 24 dB/Oct configurable by the user as cascade of 2nd Ord cells adjustable in Freq and Q
Frequency Response Filter:

1/24th of octave

Compressor RMS Compressor
Threshold From 20 dBu up to -10 dBu
Ratio From 1:1 (not active) up to 32:1 (limiting)
Positioning Knee: Soft or hard with intermediate positions (0 to 100%) between soft and hard
Attack Time Attack time from 5 up to 200 ms (1 ms resolution up to 20 ms, then 10 ms resolution up to 100 ms, and 20 ms resolution up to 200 ms)
Release Time Release time from 0.1 up to 3 sec (0.1 sec resolution)
Limiter Peak limiter
Threshold From -10 dBu up to 20 dBu
Maximum Delay 848.998 ms by 21 µs increment / decrement steps
Size 1U x 19.0" (482.6 mm)
Weight 9 lb (4 kg)
Marani DGP-231QR Professional Digital Multi-Filter 31-Band Stereo Equalizer
  • Limited 1-Year Warranty
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