Anthony Demaria Labs ADL 670 Stereo Limiter


Anthony Demaria Labs ADL  670 Stereo Limiter

Anthony Demaria Labs ADL  670 Stereo Limiter


There’s no doubt that the original Fairchild 670 was and still is the “Big Daddy” of tube compressors. That’s why people don’t hesitate to pay over $30,000 for one if they can find it. Unfortunately, most of these units are getting very old and unreliable and don’t sound as great as they once did. Well, what if you could buy a brand new one today…with a warranty…for substantially less!!! Can’t be…well, guess again!!

Our premium channel strip boasts frequency response from 10 Hz all the way up to 45 kHz and offers all of the features you’d want in a high-end device. And the ADL 700 is a great value — as you expect from PreSonus!

Introducing the ADL 670, the perfect copy of the original Fairchild 670. After years of testing and research, Anthony DeMaria Labs has matched part for part the specs and sound of the original unit. Every detail has been scrutinized to perfection…no corners were cut. Yes…believe it or not, ADL has painstakingly sourced all the parts of this puzzle to offer a very limited run on these uncompromised, untouchable sonic giants!!! Many in the past have attempted to reproduce the sound of the classic Fairchild 670 but no one until now has taken it to the level ADL has with the ADL 670 compressor. With it’s beautiful “military strength” chassis, stand alone PSU, 20 vacuum tubes and 14 transformers…it doesn’t get fatter than this. Call ADL today to find out more. Somebody had to do it.

We also carry direct replacement parts based on original Fairchild 670 design. Please call ADL today for further details.



adl o/s/l 1000All tube design (no IC’s or chips)
adl o/s/l 1000All parts are designed based on the original Fairchild 670
adl o/s/l 1000All capacitors and resisters match values as per original
adl o/s/l 1000XLR input / output
adl o/s/l 1000Handbuilt in the USA
adl o/s/l 1000Heavy-Duty Chassis
adl o/s/l 1000Handles located on front and sides
adl o/s/l 1000Great for analog & digital recording, tracking, mastering, as well as live
adl o/s/l 1000One Year limited warranty
adl o/s/l 1000Vents on front and sides for maximum air flow
adl o/s/l 1000Two 24 volt fans (voltage set at 20 volts for silent operation)
adl o/s/l 1000One Bottom PCB (Hinged Standoff)
adl o/s/l 1000One Top PCB (Hinged Standoff)
adl o/s/l 1000Two Back PCB’s

Power Supply Features

adl o/s/l 1000Remote Power Supply
adl o/s/l 1000One PCB
adl o/s/l 1000Detachable AC Cable
adl o/s/l 1000Front Power Switch
adl o/s/l 1000Keep All Vents Clear of Obstructions
adl o/s/l 1000R-313 – This pot sets B+ voltage, must be set at 240 volts
adl o/s/l 1000Remote Power Umbilical Cable – 18-gage 600 volt multi pin five foot cable
adl o/s/l 1000Rear Tube Fan – power to fan set at 20 volts for silent operation
adl o/s/l 1000Front Blue Grill Lamp – indicates power to fan, if this lamp is off must check all three fans.
adl o/s/l 10001-installed in power chassis and two in main unit.
adl o/s/l 1000If unchecked may cause serious overheating
adl o/s/l 1000Fuse – 5 amp S/B 5x20mm
adl o/s/l 1000Tube compliment – (1) 6084, (1) 5651, (1) EL 34, (1) GZ 34

Weight 45 lbs


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