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*Soundgas Type 636 (Grampian) Spring Reverb 2023

Our unique, hand-built rack reverb/preamp/overdrive/distortion units, based on the classic Grampian Type 636 circuit.

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PRICE: £4,625.00 EX VAT (£5,550.00 INC VAT)

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PRODUCT DESCRIPTION

Limited 2023 preorder – build commences January 2023.

The Soundgas Type 636 brings the hallowed Grampian Type 636 Spring Reverb design into the 21st century; an authentic future studio classic.

Description

Hand-built in limited numbers incorporating vintage components, this is the only Grampian 636 inspired circuit available today that uses the correct microphone transformers and circuitry for an authentic sound. The Soundgas Type 636 features all the hairy sonic goodness of the original units with greater consistency, lower noise and more low end in a convenient and reliable rackmount unit.

We are opening a limited number of preorders at the same price as our final units produced in 2022 – component and build costs have increased dramatically so the final pricing next year, should any further units be built, will be significantly higher.

The Soundgas Type 636 Spring Reverb brings the hallowed Grampian Type 636 into the 21st century. Whether you seek the ultimate dub reverb, the meatiest distortion, or achingly beautiful organic textures, the Type 636 has it by the truckload. We’ve been building these for three years and our 636s have been helping shape the sound of some of the world’s most iconic artists and studios.

These units are hand-built to order in very limited numbers using NOS vintage/original parts where essential for an authentic sound. For the 2023 Soundgas Type 636 we are using a carefully selected new spring tank that for greater consistency and reliability.

The design is as faithful to the original as possible and delivers all the hairy sonic joy of the originals. Dr Huw’s 21st century re-imagining does not mean corners cut – far from it – the attention to detail evokes a bygone era when gear was hand-built with care. The circuit boards have been lovingly crafted and deliver all the wild tones and textures with none of the extraneous noise and hiss of a neglected original. We only hand select and match NOS vintage British Germanium transistors for the circuit (this takes a great deal of time and expense to do right, but the sound is unmistakably glorious as a result). No corners are cut.

The Soundgas Type 636 is a Grampian with less noise, more low end and greater reliability, designed with the benefit of hindsight and decades of experience with the originals. We’ve taken the best from various eras of 636s and brought them together with a studio sensibility – accentuating exactly the flaws and foibles of the design that are so beloved of today’s users. Individual Grampian 636s all have unique sonic signatures due to age and construction and each hand-built Soundgas Type 636 will be a unique piece. We keep two Grampians in the Soundgas Studio because they have quite distinct characters (one has an original Gibbs tank, the other a later Accutronics tank, but the circuit designs are quite different also).

A true studio classic designed and built with love and attention to detail for today’s musicians and producers.

Very limited production – handbuilt entirely from scratch in our workshops in Crich, England.

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To anyone reading this who has seen cheaper versions for sale claiming they feature the Grampian ‘preamp circuit taken note for note’ we can categorically confirm that, while these units may be interesting in their own right, the circuit is in no way an accurate recreation of the original Type 636, nor do they sound close to either an original Grampian, or the Soundgas units.

You do get what you pay for.

The mic transformer (an element of our design that took a considerable amount of R&D to perfect) is incorrect, and the circuit design does not drive the Russian germanium transistors in any sonically meaningful way. As a result, the overdrive/distortion these units produce – while enjoyable in itself – is not the harmonically rich germanium distortion that is the signature sound of a Grampian Type 636 – it is mostly being produced by opamps (there are no opamps in our unit or an original 636). We have already spent a great deal of time researching whether we could build a modern 636 at a much lower price point by redesigning the original circuitry but sonically it so far has not stacked up.

And if you have seen a certain guitar pedal that claims to recreate the sound of the Grampian Type 636 aux circuit as used by Pete Townshend of The Who, we can confirm that what this digital processor actually does is create a slightly boosted signal with none of the harmonic richness of the mic preamp circuitry (which is the section Pete actually used)…

Condition

Brand new!

Tax

For sales in UK the price will include 20% VAT. Buyers elsewhere may incur VAT or other local taxes on import.

Voltage Information

Switchable voltage for use anywhere in the world - it will be set up ready for you to use before we ship.

Video Demos

Later demos feature production prototypes in action to show the evolution of the look and sound – there’s the test unit missing the face-plate, plus some earlier initial test-firings of the prototype (built into an old Binson face-plate!).

Goes well with

*Soundgas Type 636 (Grampian) Spring Reverb 2023

*Soundgas Type 636P (Grampian Preamp)

£1,295.00 EX VAT (£1,554.00 INC VAT)

MORE INFO

For much more detail about the Grampian Type 636 – history, original documentation and schematics head to our main Grampian page now.

DIG DEEPER...

*Soundgas Type 636 (Grampian) Spring Reverb 2023

Gear Info

Soundgas News

Soundgas Type 636 & 636P Update

We plan to build a short run of pre-production 636Ps to ship in early 2022 and then take a break while we build the final Soundgas...

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*Soundgas Type 636 (Grampian) Spring Reverb 2023

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Soundgas News

Incoming! The Soundgas Type 636P (it’s not a pedal…)

Say hello to the prototype Type 636P: all the heft and magic of the our 636 mic preamp in a compact desktop box.

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*Soundgas Type 636 (Grampian) Spring Reverb 2023

Gear Info

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*Soundgas Type 636 (Grampian) Spring Reverb 2023

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Grampian Type 636 – Believe the hype…

Grampians: some history and technical information about these superb, legendary machines. If you are looking to buy a Grampian or have one to sell in any...

PUBLISHED: 30th Jun 2016

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*Soundgas Type 636 (Grampian) Spring Reverb 2023

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(Re)Building the Ark – Grampian Type 636 News…

We now have the first working prototype of what will be known as the Soundgas Type 636. A faithful recreation/re-imagining of the original Grampian Type 636,...

PUBLISHED: 24th Apr 2019

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*Soundgas Type 636 (Grampian) Spring Reverb 2023

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Lords Of The Springs – Tony’s Premier Guitar Article

My first piece for Premier Guitar on the subject of vintage spring reverbs, with particular emphasis on less-common units: definitely firmly in Soundgas territory. 

PUBLISHED: 14th May 2018

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USEFUL RESOURCES

*Soundgas Type 636 (Grampian) Spring Reverb 2023

Manuals

Schematics

Grampian 636 Instructions & Schematics

Directory of original Grampian documentation we have, including tech specs, schematics and articles, to view and download.

*Soundgas Type 636 (Grampian) Spring Reverb 2023

Manuals

Grampian Type 636 Operating Instructions

Grampian Type 636 Operating Instructions & Technical Specification reproduced into a searchable format.

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Koko Hiras

As good as it gets. Tony, Dec and team have been incredible, prompt communication, great advice and outstanding service. It really felt like my Polysix came from a loving home.

Ben Parm

"Packed with love and care. A stampede couldn't have crushed this thing. Works great and sounds like a dream. I love you Soundgas."

Ben Van Vlissingen

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Tom Rowlands - Chemical Brothers

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Hallam Kite

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Josh Lloyd-Watson & Tom McFarland - Jungle

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Rhett Daily

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Tom Gossin

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Brett R

"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."

Dupille Luc

"Engaging with old gear can sometimes be filled with a lot of uncertainty, and I can't imagine what more could be done to reduce this aspect of it on top of the service you provide. Really phenomenal and I couldn't be happier."

Stephen Voinea

Fantastic. From initial contact to the product landing at my door the service provided was outstanding. Safe and secure shipping, quality serviced product.

Tom Johnston

I have been buying vintage stuff for a long time from resellers/stores/techs. I've never been so surprised and pleased after opening! Just received a Roland RE-201 and VX55 mixer, they look and sound amazing! Thanks to Tony/Declan for the service and the Soundgas team will be back!

Dong Yun Seok

"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."

Thomas Tedesco

"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"

James DLR - Sofa Sound/Metalheadz

“The Space Echo made its way to me - it looks and sounds beyond dreams, thanks guys for your great service and communication.”

Julius Bonson

“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”

Matt Morton

Grabbed a Roland RE-201 (early edition killer pre-amp) and Roland DC-50. Absolutely STUNNING. These guys truly live up to the hype. They are meticulous in caring for the gear. Also, I have a few guitar pedal and plug-in emulations of tape-echo sounds and after plugging in the real unit I can't tell you how insane the difference is. It is incredible. Especially that tone from the early pre-amp! I am totally amazed. I am in heaven :) They made it safely to Nashville from the UK and were packed really really well! Thank you so much!! Worth every penny.

Chance Allen

Purchased a Juno-60 and it works beautifully. Having gotten one teched before, I knew it was worth paying a premium to get it future proofed and Soundgas does just that. Shipped professionally from the UK to USA. Appreciate their expertise and professional demeanor!

Eric Cullen

“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.”

David Wrench

“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!”

Colleen / Cécile Schott

“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.”

Justin Meldal-Johnsen

"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!"

Tucker Martine - Flora Recording

“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!”

J Yates

"Yes, sure, you can find a Space Echo on eBay, but you won’t find one like this — that’s certain. I am so pleased with my decision to buy from Soundgas, and suggest you stop your search now and just send them a message. You will undoubtedly find yourself writing an ecstatic review about yours in short time."

Ben Evolo

Just wanted to say thank you so much for your pinch roller and echo tape. I've had a space echo for years, been sent to a shop in NYC and it never worked quite right. After installing the roller and tape, my echo works like a dream. Really incredible expertise you all have! Thank you.

Andrew Potter

“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.”

Lincoln Barrett / High Contrast

"Finally, a company that tracks down all those brilliant curiosities that bring so much character and personality to a studio."

Matthew Herbert

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