ADL - 600 Agrandir l'image

2 input channels, each with:

  • adl o/s/l 1000 Mic, line, and instrument inputs

  • adl o/s/l 1000 High-voltage, Class A, dual-transformer, vacuum-tube preamp

  • adl o/s/l 1000 3 military-grade vacuum tubes

  • adl o/s/l 1000 Input-source select

  • adl o/s/l 1000 Variable mic-input impedance (150, 300, 900, 1,500Ω)

  • adl o/s/l 1000 Variable high-pass filter (40, 80, 120 Hz)

  • adl o/s/l 1000 8-position Gain switch

  • adl o/s/l 1000 Variable Trim adjustment for final stage

  • adl o/s/l 1000 48V phantom power

  • adl o/s/l 1000 -20 dB pad

  • adl o/s/l 1000 Polarity-reverse switch

  • adl o/s/l 1000 Backlit VU meter (output level) with -6 dB switch (for metering hot signals)

  • adl o/s/l 1000 >73 dB of gain

Input/Output

  • adl o/s/l 1000 2 unbalanced ¼” instrument inputs (front panel)

  • adl o/s/l 1000 2 transformer-balanced XLR line inputs

  • adl o/s/l 1000 2 transformer-balanced XLR mic inputs

  • adl o/s/l 1000 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 100Ω
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)

Plus de détails

ADLPRE755U

Nouveau

ADL - 600

Anthony Demaria Labs

The ADL 600 preamplifier runs on power rails of ±300V. Most off-the-shelf, op-amp-based designs run on power rails of 10V to 18V. Higher-voltage power rails deliver more headroom, deeper lows, smoother highs, and a richer overall sound.
We only use genuine transistors, resistors, and capacitors in the ADL 600 because this provides ultra-low noise and transparency. Op-amps add noise, coloration, and harshness to a signal. You won’t find them in the ADL 600.
Power amplifiers are classified primarily by the design of the output stage and are designated Class A, B, AB, D, G, or H. In a Class A preamp, the output circuits are always on for the entire cycle of signal swing or the bias current flows at all times. As a result, Class A preamps have the most linear design, with no crossover distortion, and they deliver purer, clearer, and more musical results than the Class AB designs that are found in many preamps.
The ADL600 employs large, high quality, custom-wound, shielded input and output transformers. Among other things, these securely decouple the preamp from the outside world (the mic and the A/D or following devices), which is very important in a high-voltage tube design such as this one.
The ADL 600’s Cinemag input transformer sets the stage for the preamp’s nearly ruler-flat/linear and detailed sound; the rest of the preamp amplifies what the Cinemag delivers. No other input transformer sounds like the Cinemag does—and we tried others.
The nickel/iron-core, large-scale output transformer delivers high headroom. It will begin to saturate in a pleasing (some would say “creamy”) manner at very high levels. This adds the bit of finish to the sound.

Maximum Flexibility

Beyond superb sound quality, the ADL 600 is special because of its ease of use and flexibility. Each of the two input channels has separate mic, line, and instrument inputs, and you can select among four mic-input impedances, so the preamp works great with any type of microphone.

Hearing is Believing

Technical explanations are well and nice but hearing is believing. Try the ADL 600 yourself and experience the thrill of using the world’s finest tube preamp.

 

 

 

Features And Specs

2 input channels, each with:

  • adl o/s/l 1000 Mic, line, and instrument inputs

  • adl o/s/l 1000 High-voltage, Class A, dual-transformer, vacuum-tube preamp

  • adl o/s/l 1000 3 military-grade vacuum tubes

  • adl o/s/l 1000 Input-source select

  • adl o/s/l 1000 Variable mic-input impedance (150, 300, 900, 1,500Ω)

  • adl o/s/l 1000 Variable high-pass filter (40, 80, 120 Hz)

  • adl o/s/l 1000 8-position Gain switch

  • adl o/s/l 1000 Variable Trim adjustment for final stage

  • adl o/s/l 1000 48V phantom power

  • adl o/s/l 1000 -20 dB pad

  • adl o/s/l 1000 Polarity-reverse switch

  • adl o/s/l 1000 Backlit VU meter (output level) with -6 dB switch (for metering hot signals)

  • adl o/s/l 1000 >73 dB of gain

Input/Output

  • adl o/s/l 1000 2 unbalanced ¼” instrument inputs (front panel)

  • adl o/s/l 1000 2 transformer-balanced XLR line inputs

  • adl o/s/l 1000 2 transformer-balanced XLR mic inputs

  • adl o/s/l 1000 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 100Ω
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)

Commander

ADL - 600

ADL - 600

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