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PreSonus ADL600 Tube Pre Amp

Product Code PRADL600
Manufacturer PreSonus

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Description

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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Specifications

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
Input/Output
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
Physical
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

Performance
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

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 28 lb. (12.7 kg)

 

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