Refurbished - ADL 700 *

Product Details

The award-winning ADL tube preamp

  • High-voltage, all-tube, Class A, dual-transformer design with one 12AT7 and two 6922 vacuum tubes
  • Input-source select switch
  • Variable microphone input impedance (150, 300, 900, 1,500Ω)
  • 8-position Gain switch
    Variable Trim adjustment for final stage


​Mr. Creel’s fully variable FET compressor

  • Attack, release, threshold, ratio, makeup gain
  • Bypass switch
  • Stereo link


Mr. Creel’s four-band, semi-parametric EQ with bypass

  • Two peak mid bands
  • High and low bands switchable peak/shelving
  • Overlapping frequency ranges
  • Fixed Q (0.55)
  • Switchable pre-/post-compressor
  • Bypass switch


Meters, controls, and other features

  • Ultra-low noise (-100 dB S/N ratio) and high gain (>73 dB gain)
  • Dual-mode analog VU metering (output and gain reduction)
  • -6 dB meter-offset switch (for metering hot signals)
  • Variable high-pass filter (20, 40, 80, 200 Hz)
  • 48V phantom power
  • Polarity-invert switch
  • -20 dB pad


Getting in and out

  • 1 unbalanced ¼” instrument input (front panel)
  • 1 transformer-balanced XLR line input
  • 1 transformer-balanced XLR mic input
  • 1 transformer-balanced XLR line output


​Let’s get physical

  • 2U 19” rack-mountable, rugged steel chassis
  • Internal power supply with standard IEC connector
  • Chassis-ground link connectors (lift chassis ground)

The ADL 700 channel strip combines a single-channel version of the award-winning ADL 600 Class A tube preamplifier with one 12AT7 and two 6922 vacuum tubes; a fully variable, FET compressor; and a four-band semi-parametric equalizer. This high-end, 2U rack-mount unit provides separate, balanced XLR mic, balanced XLR line, and ¼” TS instrument inputs with Source Select and a balanced XLR output and includes phantom power, a -20 dB pad, and polarity reverse.

Standard IEC Power Cable

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

Power

Internal supply, standard IEC connector 115 or 230 VAC / 100W

Physical

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)

As a commitment to constant improvement, PreSonus Audio Electronics, Inc., reserves the right to change any specification stated herein at anytime in the future without notification.

Accessories

Standard IEC Power Cable