Filter
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SPECIFICATIONS* QF
™
131 QF
™
215
Filter Q 4.77 2.3
Filter Frequencies (Hz) 20, 25, 32, 40, 50, 63, 80, 25, 40, 63, 100, 160,
100, 125, 160, 200, 250, 250, 400, 630, 1 k, 1.6 k,
315, 400, 500, 630, 800, 2.5 k, 4 k, 6.3 k, 10 k, 16 k
1 k, 1.25 k, 1.6 k, 2 k, 2.5 k,
3.15 k, 4 k, 5 k, 6.3 k, 8 k,
10 k, 12.5 k, 16 k, 20 k
Maximum Boost
and Cut Filter +12 dB / -18 dB +12 dB / -18 dB
Output Noise
Bypass Mode -101 dBV -100 dBV
Filter Mode (Flat) -95 dBV -98 dBV
ALL MODELS
Frequency Response: ± 1 dB (20 Hz – 20 kHz)
Distortion: .002% (20 Hz – 20 kHz)
Input Impedance: Balanced 20 k Ohms (equal impedances to ground)
Output Impedance: 660 Ohms
Maximum Input Level: +18 dBV (8 V RMS)
Maximum Output Level: -18 dBV unbalanced; +21 dBV balanced
Nominal Input Level: 0 dBV (1 V RMS)
Nominal Output Level: 0 dBV (1 V RMS)
Input Headroom: Nominal 18 dB
Output Headroom: 18 dB
Maximum Boost and
Cut Gain: +15 dB / -15 dB
Low Cut Filter: 40 Hz @ 24 dB per octave
Power Consumption: Domestic: 120 VAC, 60 Hz, 12 Watts
Export: 220-230V~, 50/60 Hz, 12 Watts
Dimension: 3.5" (89 mm) H x 19" (483 mm) W x 7.375" (187 mm) D
Weight: 7.8 lbs. (3.54 kg)
* All specifications are typical unless otherwise noted. (0 dBV = 1 volt.) All specifications are referenced to nominal
output level (0 dBV) unless otherwise stated.
NOTE: All specifications measured at 1 V RMS input, unbalanced output, sliders at mid position, and all switches out
unless otherwise noted.