User Manual

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4 Resources
4.1 Audio Specification
Input Impedance
Microphone Selectable, 150/300/900/1500Ω
Balanced Line 2 kΩ
Instrument 1 MΩ
Maximum Input Level
Microphone (1500Ω, +20 dB Pad out) +10 dBu
Microphone (1500Ω, +20 dB Pad in) +30 dBu
Balanced Line +30 dBu
Instrument +20 dBu
Gain Range
Microphone (1500Ω, +20 dB Pad out) +6 dB to +70 dB
Balanced Line -20 dB to +40 dB
Instrument -20 dB to +40 dB
Performance
Noise Floor (all inputs, minimum gain) -95 dBu (A-weighted)
Microphone Equivalent Input Noise (EIN) -123 dBu (A-weighted)
Frequency Response 10 Hz to 45 kHz, ±1 dB
Maximum Output Level +28 dBu (@ 0.5% THD+N)
Output Impedance 50Ω
Tube Complement (per channel) (1) 12AT7A and (2) 6922
EQ
Type 2nd-order shelving filter
Q 0.55
Low Band (Low-pass or Bandpass) 20 Hz to 250 Hz, ±16 dB
Low-Mid Band 160 Hz to 2 kHz, ±16 dB
High-Mid Band 800 Hz to 8 kHz, ±16 dB
High Band (High-pass or Bandpass) 2 kHz to 20 kHz, ±16 dB
Compressor
Threshold Range -20 dBu to +30 dBu
Ratio 1:1 to 4:1
Attack Time Fast (0.5 ms) to Slow (10 ms)
Release Time Fast (30 ms) to Slow (500 ms)
Curve Type Soft knee
20
4 Resources
4.1 Audio Specification
ADL 700
Owner’s Manual