Deltalab Effectron II ADM 1024


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In prep now: Effectron II ADM 1024. For more info see our Effectron page. Photos show an ADM 1020 and will be replaced with photos of the unit for sale

The Effectron was part of the first wave of digital gear to hit studios in the early 1980s. RAM was super-expensive so many units had short delay times and were designed for chorus, flanging, phasing and doubling. The more expensive devices like the Effectron I ADM 1020 had around 1 second of delay time

Deltalab was part of the booming Massachusetts hi-tech audio industry of the 1970s and 80s which included Lexicon & Bose. In 2016, Akamai, Analog Devices, B&W and THAT Corporation are prominent Mass manufacturers

Founder of Deltalab, Richie DeFreitas, holds a number of patents for “An electrical system of the type in which a digitally encoded signal is determined at least in part by the difference between a present value of an input signal and a reference signal representative of a past value of the input signal”. Otherwise known as Delta-encoding, this was one of the key technologies enabling digital audio

Effectrons are quirky, entertaining devices with lots of character. By varying the modulation depth & speed they produce effects from a slow phase, via a deep flange & warbling chorus right through to pitch-bending, gargling, modulated delays. They have a unique sound and definite mojo!

The 1020 model has over a second of delay time enabling longer delays and more complex effects than the ADM 64 in another of my auctions. Either will do the killer flanging & phasing effects that Effectrons are famous for. It’s hard to describe the difference between an Effectron and, say, a Lexicon PCM42 but, if you had both in your effects rack, you’d head off in a different direction sonically with each one. The result with the Effectron would be madder than the Lexicon – which explains why I like them so much!

Hail the Effectron!

“OH man , I have stumbled upon this wicked awesome unit… i think this piece is amazing”

“Great thing about effectrons is playing the knobs as your track is printing… especially for weird modulation stuff… think bauhaus’ “bela lugosi’s dead” or reverend horton heat’s “gin and tonic blues” and you’ll get it… LIQUID, baby = effectron”

“Good sounds, it’s digital, but in an analog way! The modulation is off the hook crazy”

“I don’t know about the differences, but those old DeltaLab delays sound GREAT, at least if your idea of “great” is “warm and funky” rather than “completely accurate”. I’ve used one for years. Lots of aliasing noise and bandwidth limitations, but it’s in no way cold or uninvolving”

“Deltalabs units use delta modulation istead of the usual PCM method of encoding/decoding. They definitely sound different!”

“If you cannot come up with an interesting effect on this box then just get out of the business”

“Good clean sound? Hell NO…. good clean fun?… HELL YES!! Every studio should have at least one. Imparts a vibe that a plug-in certainly can’t”

“The unit makes a great flanger, excellent chorus and a great freakout anti-music device”

“The EFFECTRONS Rule ! I have all 3 and the amount of creative sound you can derive from them is intense. HAIL THE EFFECTRON !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

“Effectrons are just plain cool”

“I forgot how cool the super short delay with the long feedback was. There also is positive and negative regeneration”

“Another excellent thing about the Effectron series was the knobs! Knobs for everything!”

Delta modulation digital delay line with variable delay time, modulation, feedback and output dry / delay mix control. Unbalanced analogue inputs & outputs on jacks. Sockets also for bypass and control input. 1020 mS maximum delay at 1x bandwidth

1U device suitable for mounting in a standard 19" rack. 110 Volt AC with captive cable & US power plug

Effectron Catalogue

Deltalab Timeline manual (similar product)

Youtube demo Youtube demo (of similar Effectron II) Memory expansion for the ADM 1020


In very good used condition with minimal case scratches & rack rash. Original knobs still fitted. Tested & working 100%. Photos show an Effectron sold previously

Vintage gear All vintage gear will have case scratches and marks. It may also have, or develop, noisy pots and switches. I make my descriptions as accurate as possible and note any existing defects. I test each item before shipping but please understand that vintage gear will not be perfect and adjust your expectations accordingly