Universal Audio LA-610 Channel Strip - Manual (Page 6)

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LA-610 Specifications
Microphone Input Impedance Selectable, 500 or 2k
Balanced Line Input Impedance 20k
Hi-Z Input Impedance Selectable, 2.2M or 47k
Maximum Microphone Input Level -8 dBu (2K input Imp. & 15 dB Pad in)
Maximum Output Level +20 dBu (120Vac line)
Internal Output Impedance 80
Recommended Minimum Load 600
Frequency Response 20 Hz to 20 kHz +/- 0.5dB
Maximum Gain 40 dB (Line), +77dB (Mic)
Noise Floor -72 dBu 20 – 20kHz (Line In, Unity Gain)
Tube Complement (3)12AX7, (1)12AT7A, (1)6AQ5
General:
Power Requirements: 115V / 230V operation
Dimensions: 3.5” vertical, 19” rack (2RU).
Weight: 12 lbs. (Boxed,14.5 lbs.)