Sound Performance Lab PQ Mastering Equalizer Technical Specifications, External power supply

Technical Specifications

Input impedance (balanced):	20 kOhm
(Welwyn precision resistors;
transformerless)
Output impedance (balanced):	‹ 600 Ohm
(CMR trimmers, transformerless)
Overload resistance:	+34 dB
(Band 1-5 = ON, B/C = 0)
Harmonic distortion:	@-30 dBu:	0.2%
	@-20 dBu:	0.05%
	@0 dBu:	0.01%
	@+10 dBu:	0.002%
	@+30 dBu:	0.0005%
S/N:	-90 dBu (A-weighted; -88 dBu w/o Filter)
(Band 1-5 ON, B/C = 0, each Q = Q 1,
Band 1 = 10 Hz, Band 2 = 100 Hz,
Band 3 = 1 kHz, Band 4 = 10 kHz,
Band 5 = 28 kHz)
Transmission bandwidth:	10 Hz-100 kHz
(-3 dB, Band 1-5 = ON, B/C = 0)
Processed frequency range:	10 Hz-28 kHz
Phase:	@ 10 Hz:	+5.5°
	@ 1 kHz:	0°
	@ 10 kHz:	-1.23°
	@ 100 kHz:	-8.8°
	@ 200 kHz:	-11.25°
CMRR:	› 75 dB @ 1 kHz
(Max. Gain +34 dBu, Band 1-5 ON,
B/C = 0)
Housing & mounting dimensions:	Standard EIA 19 inch rack chassis, 4 units
	482 x 176 x 390 mm W x H x D
	ca. 189 3/4 x 69 3/10 x 153 1/2 inch W x H x D
Weight:	18,25 kg/40,15 lbs

External power supply

The PQ comes with an external linear power supply featuring a toroidal transformer for optimal audio quality and dramatically reduced inductive disturbance/interference.

Input voltage:	110-120 V/60 Hz or 220-240 V/50 Hz
Noise:	› -100 dBu (@ +/- 60 V)
Dimensions:	Width: 15 cm (5 9/10 inch)
	Depth: 24,5 cm (24 1/2 inch)
	Height: 7 cm (2 3/4 inch)
Weight:	4,2 kg (9,24 lbs)

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