Back to Browse

Vintage Glensound BBC AM22/13/1127 Modded Stereo Compressor & 6xEQ -1970's (Neve/Calrec/Audix)
£1,494
Very GoodReverb1mo agoLocal pickup available
Sold by
S
System Studios
Details
- First Seen
- 28 September 2026
- Last Seen
- 9 November 2026
- Times Seen
- 32
About this listing
Vintage Glensound BBC AM22/13/1127 Modded Stereo Compressor & 6xEQ -1970's (Neve/Calrec/Audix) is a used item in very good condition, listed on Reverb. The asking price is £1,494. It is offered by System Studios through Reverb. Local pickup is available. It is in our Preamps & Channel Strips category. Used Gear Hunter first saw this listing on 28 September 2026 and last saw it on 9 November 2026. It has been seen 32 times in our scans. Prices are converted from the seller's currency when we scan the listing, so the amount you pay may differ slightly. The seller sets shipping, and import duty or VAT may apply, so check the final cost and the item's details on Reverb before buying.
From the seller
GLENSOUND ELECTRONICS 1970's UK Vintage Modded AM22/13 6xEQ and Stereo Compressor Rack - Fully working but being sold as-is based on age with no guarantees or returns.
A beautiful unit, modded by the incredible former tech at the Magic Shop NYC, this is a portable EQ and Compressor rack design for location recording for the BCC. Apparently hand-built by skilled engineers to the same exacting specs that produced all the other great British gear you love, this rare EQ/compressor is a unique opportunity to add 8 classic analog outboard devices to your studio set-up.
Designed and built in the late 1970s - early 80s, this Glensound box was built like the proverbial battleship. Every part is modular and based around a solid metal chassis and connection backplane.The EQ and compressor circuitry was designed to the highest standards and compares to the likes of Neve, Audio & Design (ADR), Calrec, Klark-Teknik and other classic British audio manufacturers of the time.
The EQ is does exactly what you want - smooth, silky, and musical. This box contains six "RSAs" or Response Selection Amplifiers, which are essentially a three-band equalizer with selectable low (60 or 160 Hz), mid (800, 1.6k or 3.2 Hz) and high frequency boost and cut, with switchable high-pass filters (40 or 100 Hz) and a channel bypass switch.
The optical compressors are transparent but controlling, with the ability to operate in mono as two separate channels or to be linked as a stereo pair across a mastering desk output. Each compressor has switchable -4/0/+4dB threshold, fast/auto/slow mode, and 2:1/4:1 slope and -15 dB pad. There is a gain reduction meter for each compressor channel and a stereo-link switch. The compressor section was modded to add make-up gain via new pots in the rear of the unit so you can level match to your heart's content. Finally, I think we upgraded the chips in the EQ to reduce noice and raise headroom. I'll see if i can verify if you're interested.
Originally intended to work with a Glensound mixing desk, the EQ (RSA) modules are wired as insert in/out unbalanced and the compressors would have been inserted in the program output chain and are wired as balanced in/out, via UK " PO jack/B Gauge" connections. All of the modules are independently accessible via the rear panel. Please note that the "PO jack" has a smaller tip than the ubiquitous 1/4 inch/6.3mm "A-gauge" or TRS jack. It's commonly referred to as a "B-Gauge" jack and is widely available in the UK. The larger "A-gauge" 1/4" jack will make contact and operate as expected but in time could cause the unit's sockets to deform and become unreliable. Having said this, we've never had a problem after have used TRS and 1/4" for 15 years. The rack operates from the mains or a 24 volt DC supply and has been modded for US voltage and power plug.
Cosmetically, the unit has a few scrapes and blemishes that are normal with age and people are always drawn to its cool colored knowbs. All channels and meters are working, with a few scratchy pots that some Deoxit should solve. I think we also recapped some portion of the unit a while ago, but can't remember for sure.
We love these unit and are only selling because we are fortunate to have two and space is now getting limited on the mothership. The photos listed here are of the brother of the one we are selling, but it is identical - if you want more photos of it, let us know. It's heavy, so shipping costs will be commensurate. The successful bidder is welcome to collect in person.