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Specifications:
Electronic
• 81 dB of gain at 1kHz, balanced-in to balanced-out in Microphone
Input Mode
• Noise figure, rms A-weighted: < 2 dB
• Noise figure, rms unweighted: < 3 dB, 20 kHz LPF bandwidth
• EIN < -130 dBu A-weighted, 150 Ω resistive source
• Frequency response: -3dB < 1Hz and > 100 kHz
• THD: < 0.02% at 1 kHz
• Balanced Microphone Input Impedance: 10 kΩ
• Balanced Line Input Impedance: 33 kΩ
• Input Gain control: twelve-position switch provides from +7 dB to +56
dB of gain for the preamplifier circuit, as measured between the input
and the before the output line driver.
• Output Gain control: continuously variable from -64 dB to + 19 dB of
circuitry
additional output gain, following the CurveShaper
TM
• Switched LF Shelving filter: -3 dB break-frequency tunable from 18 Hz
to 360 Hz; maximum reduction -20 dB
• Switched CurveShaper
EQ: +3dB break-frequency tunable from 2.1
TM
kHz to 26 kHz; HF gain adjustable from +0 dB to +18 dB; the slope of
the HF filter varies interactively and directly with the CurveShaper
TM
frequency and gain settings
• XLR output maximum level into 600Ω load: +28 dBu, balanced; 0 dBu
= 0.7746 V rms
• XLR connectors polarity: pin-1 is ground, pin-2 is high, pin-3 is low
• LED signal level indicators: green snaps on at -6 dBu, red snaps on at
+23 dBu, and yellow varies in brightness with level from -3 dBu to +20
dBu.
Physical
• Zinc-plated steel chassis with 0.125" anodized aluminum front panel
(measured without knobs and switches): 1.488" w, 6.033" d, 5.247" h
(3.78 cm x 15.32 cm x 13.32 cm)
• Weight: 14.5 oz (411 g)
• Laser engraved front panel markings
• Grayhill series 71 stepped gain switch
Specifications and details subject to change without notice.
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