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PreSonus ADL600 Tube Pre Amp

Product Code PRADL600
Manufacturer PreSonus

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Designed with famed tube-circuit designer Anthony DeMaria, the ADL 600 employs a distinctive Class A, discrete design with three top-grade vacuum tubes per channel, operating with ±300V power rails for maximum headroom and superb tone. The dual-transformer design also ensures low-noise operation, with maximum common-mode rejection.
We use only the finest components, including switched attenuators, analog VU and LED meters, and custom-designed, proprietary transformers. There are no op-amps or ICs in the signal path. We went high-end all the way, right down to the last polypropylene film capacitor.
The result is an ultra-low-noise tube preamp with a big, warm, smooth, clear, distinctive sound. It produces big, smooth, and articulate vocals; deep and tight bass guitars; and rich, full mixes. It makes virtually anything you run through it sound better.

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2 input channels, each with:
Mic, line, and instrument inputs
High-voltage, Class A, dual-transformer, vacuum-tube preamp
3 military-grade vacuum tubes
Input-source select
Variable mic-input impedance (150, 300, 900, 1,500Ω)
Variable high-pass filter (40, 80, 120 Hz)
8-position Gain switch
Variable Trim adjustment for final stage
48V phantom power
-20 dB pad
Polarity-reverse switch
Backlit VU meter (output level) with -6 dB switch (for metering hot signals)
> 73 dB of gain
2 unbalanced ¼" instrument inputs (front panel)
2 transformer-balanced XLR line inputs
2 transformer-balanced XLR mic inputs
2 transformer-balanced XLR line outputs
2U 19" rack-mountable, rugged steel chassis
Internal power supply with standard IEC connector
Chassis-ground link connectors (lift chassis ground)

Input Impedance
Microphone Selectable, 150/300/900/1500Ω
Balanced Line 2 kΩ
Instrument 100 kΩ

Maximum Input Level
Microphone (1500Ω, +20 dB Pad out) +5 dBu
Microphone (1500Ω, +20 dB Pad in) +25 dBu
Balanced Line +30 dBu
Instrument +30 dBu

Gain Range
Microphone (1500Ω, +20 dB Pad out) 18 dB to 72 dB
Balanced Line -12 dB to 40 dB
Instrument -5 dB to 42 dB

Noise Floor (all inputs, minimum gain) -95 dBu (A-weighted)
Microphone Equivalent Input Noise (EIN) -125 dBu (A-weighted)
Frequency Response 10 Hz to 45 kHz ±1 dB
Maximum Output Level +23 dBu (@ 0.5%THD+N)
Output Impedance 600Ω
Tube Complement (per channel) 1-12AT7A, 2-6922

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 28 lb. (12.7 kg)


Equipment available to buy from this site is for professional use only. Please note in certain countries some products listed may not be available from A.C. Entertainment Technologies Ltd.

E&OE. Information is subject to change without notice. The rights and ownership of all trademarks are recognised.


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