Where Perfection Matters
ADL 700 Overview
ADL 700 Overview
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
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, 2-6922
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
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
Internal supply, standard IEC connector 115 or 230 VAC / 100W
Dimensions 2U rackmount
Height 3.5” (88.9 mm)
Depth 17" (431.8 mm)
Width 19” (482.6 mm)
Weight 22.75 lb. (10.32 kg)
ADL 700 highlights

The ADL 700 preamp is incredibly versatile,” he adds. “It’s got EQ, compression, and it helps shape the sound so I don’t have to do it after the fact. It just sounds better. It’s got that little tiny edge that I would get when I go into a studio and run through some exotic handmade British console.
Steve Morse | Acclaimed Guitarist Deep Purple, Dixie Dregs