Legendary AMS DMX 15-80 S digital delay for sale in excellent working order following a thorough service by an exceptional AMS technician (see report below).
Legendary AMS DMX 15-80 S digital delay for sale in excellent working order following a thorough service by an exceptional AMS technician.
Service report below.
Finding a vintage digital AMS rack unit in top operating condition is becoming ever-harder; ‘cheap’ examples can be found online, but they can require a great deal of tech time, and sometimes fixes are simply not possible. Manufactured from 1979-1985 these were the cutting edge of digital technology; AMS designed and built these with great care and attention to detail and they soon became ubiquitous in studios worldwide. The DMX can be heard on thousands of recordings from the 80s to the present day and was certainly one of the core studio staples that defined the musical soundscape of the 80s. Today AMS units such as this can still be found in regular use in top studios worldwide. Their sound is still so coveted that Universal Audio have now collaborated with AMS to produce the UAD plug-in version. However, as with all digital emulations of vintage hardward, nothing can match the sound of the real thing.
Currently set to 240v operation.
Serial Number: 3003
Tech Report: Soundgas DMX 15-80s #3003
Missing bottom panel, missing nudge button caps, missing internal IEC safety cover.
Wrong on/off switch fitted. Replaced with correct factory switch and cap nut.
CHB regen pot loose. Retightened.
Unit has been recapped recently. Some caps are too tall so shorting against other boards. Replaced.
No power: Main fuse missing…replaced.
Fan wires cut and not connected to power.
Transformer wires cut at IEC voltage selector terminals. Seems to have been hardwired for 240v only, but mains voltage wires just taped together!
Bad connection within IEC voltage selector input. Repaired and wired back to factory.
Remove all cards test PSU, all voltages present.
+5vdc fuse blowing under load. Replaced wrong +5vdc Schottky Rectifier on motherboard. Replaced wrong caps, rewound wrong value inductor on switch mode supply. Wired large +5 reservoir cap correctly.
Remove all cards, test PSU.
Power present +15,-15 and +5vdc. OK.
No audio. Bad tracks, rear of Deglitch card DIL socket.
Nudge up button not working. Repaired racked solder joint on back of IC on front panel board.
Assembled and fitted new ribbon cable set.
Fit new fan.
Cleaned all edge connectors and sockets.
Cleaned out internals of dust with compressed air.
Now working and reliable. Check voltages (OK)
8hr burn test. Test battery charging and NVRAM data retention: Passed.
Please Note: It is very important all vintage AMS RMX & DMX series rackmounts are powered for at least an hour at least every 6 months or risk of NVRAM battery leakage is greatly increased. It is highly recommended the battery is replaced every 5 years as routine maintenance on these units to avoid severe damage to the processor card.
In very good overall condition with some dings/scratches to the face/case. The case is very clean with with some rack rash. The base plate was missing so it has been fitted with a non-original replacement. See photos for more information on cosmetic condition. Full detailed service report also in the listing.
For sales in UK/EU the price will include 20% VAT. VAT-free sales are possible to businesses and individuals in the EU (outside the UK) with a valid VAT Number - please get in touch if you wish to buy this way.
220/240v unit. A step-up transformer will be required for use on 110/120v supplies. Please ask if you need advice on what to use. We do not recommend using cheap, generic Chinese mains transformers.
"Excellent equipment, wonderful service. I fully recommend Soundgas to anyone in the vintage gear market and I will definitely be a return customer. The gear itself was exactly as advertised and in great condition."
"Soundgas offer a great service, sourcing esoteric gear that works great."
“Imagine the perfect eBay.... with everything you never knew you wanted… and you can rest assured that your vintage and rare wobbly sound device will turn up on time and in one piece and possibly in even better condition that when it left the workshop. Soundgas - literally amazing."
"When you are spending big money of vintage gear it's nice to have the confidence of impeccable service, sales and support... some of the best in the industry! Impeccable people, incredible equipment… my poor poor fiancé"
"Soundgas has an unbelievable selection of the cool, old stuff that’s hard to find. Tony knows his stuff and goes out of his way to make sure the transaction is a smooth one. Thanks guys!"
"Finally, a company that tracks down all those brilliant curiosities that bring so much character and personality to a studio."
“If you are a vintage audio gear head then this is the place you have been looking for all your life. Pretty much any piece of classic or obscure kit that you are after is available here... But the clincher for me is that the gear they sell has been restored by their top techs (unless otherwise noted) which is really very important when dealing with, for example, synths from 30 years ago.”
“The perfect place to hear, learn about and then buy your most wanted piece of vintage music gear! I've not only managed to buy a rare piece of equipment I really wanted, but I have the guarantee it's been serviced, and I got it from people who are clearly passionate and knowledgeable about what they do, as well as super friendly and responsive by email. Thoroughly recommended!”
"Soundgas provided the absolutely top service in terms of item quality as well as service and communication. Shipping was fast, packing was top notch. These people deserve the best reputation they already have. Many many thanks, guys."
"DREAM. COME. TRUE. My music has taken me around the world a few times...and if you are like me and absolutely adore vintage gear...Soundgas is the stuff of LEGENDS. It's the shop that people like us search for our whole lives- fantastic and rare selections, and the technical know-how to repair and or mod these vintage items to get them into shape to flow with your modern setup."
“I have bought two Moog synths from Soundgas over the past year, and I cannot say enough wonderful things about their selection of vintage products, the level of service, diligent responses to email, and expedient shipping with copious protective packaging. Soundgas is an impressive operation. My synths also sound amazing! These folks have made my vintage keyboard dreams come true in short order!”
"Just received my Roland RS 505 Paraphonic! Thanks so much - arrived very promptly, well packaged, in great condition and sounds amazing! Best seller."
“I’ve bought a number of items from Soundgas recently, and have been really impressed with their service. It takes the stress out of buying vintage gear to know it’s been properly (and faithfully) serviced or restored. Their after-sales service has also been exemplary. Highly recommended.”
"Still in shock! Can not believe how good the seller is. This product was inspected, and shipped from the UK to the USA quicker than orders from my home state. Highly recommend these guys."
“The Space Echo made its way to me - it looks and sounds beyond dreams, thanks guys for your great service and communication.”
“I purchased a completely overhauled vintage valve Binson Echorec 2 T7E modified with varispeed, wet-only output, and a new paint job from Soundgas in early 2018. Tony and his team did an amazing job during every step of the purchase”
"The packing job to get it over to the US was superb, and the sound and performance of my Space Echo exceeds all of my expectations. I hope to do business with Soundgas again in the future. Many thanks!”
“If not a new language, then at least a very challenging, old dialect that will take me some time to assimilate. I’ve been waiting a long time for the challenge. Thank you @soundgasltd, she’s a beaut...and nobody prepares and packs like you fine folks.”
"Packed with love and care. A stampede couldn't have crushed this thing. Works great and sounds like a dream. I love you Soundgas."
Here’s a quick update for all who’ve placed preorders for the Soundgas Type 636.
PUBLISHED: 26th Jun 2019
On Thursday 6th June, we held our inaugural Soundgas Roadshow event at Strongroom Studios in London: hands-on vintage gear demos in the afternoon, and then an...
PUBLISHED: 19th Jun 2019
We stand behind our gear with a guarantee of your satisfaction - see the FAQ section above for full details and buy with complete confidence.
When buying more than one item you only pay the shipping on the item with the highest shipping cost. Calculated automatically at checkout.
Get in touch via the contact page. We know & love our gear and we want to ensure you get something that matches your needs (that, and we just like talking gear).