Where Perfection Matters
ADL 1000 technical specs
ADL 1000 Overview

All audio transformers are designed according to original specifications which has allowed us to not only serve our needs, but also service and repair original 660 and 670 Fairchilds.

Frequency Response
15Hz-30kHz ± 0.5 dB
@+4 + 0.75% @+20 + 0.18%
-80 dB
Input/Output Impedance
600 Ohm Balanced XLR
Gain Reduction
40 dB
40 dB ± 1 dB
Attack Time
10 uSec.
Release Time
~0.07s. for 50% Release, 0.5s - 4s for 100% Release
Panel Size
Standard Two Rack Space (2U)
Panel Controls
Gain Reduction/Output +4 Switch Gain, Peak Reduction
117 (Standard), 240 (Available on Request)
100-120-V FUSE
1/2-A S/B 5x20mm
220-240-V FUSE
1/4-A S/B 5x20mm
Tube Complement
(2) 12AX7A, (1) 12BH7A, (1) 6AQ5A
Shipping Weight
12 lb.
ADL 1000 highlights


The sound of the room changes from show to show, so to get a consistent, smooth vocal quality. I use an ADL 1000
Shawn Colvin | Artist

I've had the 1000 for 2 years and it's worked flawlessly. At the professional level (or any level for that matter), it's flat out one of the best values in the industry. IMHO.
Eric Harrington | Atlantic Records

Of all the available tube compressors, the ADL 1000 and ADL 1500 stand alone. I use them on every session that I do, including Aerosmith, Extreme and Jenna Drey. You owe it to yourself to check one of these out immediately
David J. Frangioni | Engineer/Producer

The ADL 1000's have become very popular with the engineers who work here, they have been used on every session in Studio B since the day they were installed. Our clients are demanding another pair for Studio 'A'.
Phil MacConnell, Husky Hoskulds | Sunset Sound Factory