Market Electronics (Maestro) Echoplex EM-1 Groupmaster

Market Electronics Echoplex EM-1 Groupmaster for sale serviced and guaranteed. This is the ultra-rare multi-input mixer version of...

Select Currency

You missed it!


Market Electronics Echoplex EM-1 Groupmaster for sale serviced and guaranteed. This is the ultra-rare multi-input mixer version of the classic US, solid-state tape echo with Sound On Sound. Full mechanical and electrical service completed, heads cleaned, Fulltone cartridge rewound with fresh tape. Great characterful sound, overdrives well.

In excellent working order for a 40+ year-old echo unit. Case/face scruffy, but functional. Case lid missing.

Sounds great if you overdrive the inputs for extra colour…

Has serious presence in the studio.

Guitarists love the Echoplex – the EP2 and EP3 were famously used by Jimmy Page on stage and in the studio with Led Zeppelin and Page & Plant, as well as by Eddie Van Halen amongst many others.

It features the noodletastic Sound On Sound facility which allows you to play along with a very long loop of yourself…

This is not a perfect-sounding echo – but that’s not why you buy an Echoplex. It’s the gnarly, tape-saturated wrongness that makes this rusty monster so desirable. It shouldn’t be your only echo, but it may well be your most enjoyable.  This is a machine for someone who doesn’t want perfect, who enjoys the foibles and idiosyncrasies of a less than perfect design. Celebrate the imperfections and sonic irregularities created by this grand old technology.

We also have a valve EP2 and an EP-3 for sale – see our other listings or email for details.

Just back from spending some quality time with our experienced tape echo tech and now the sound of this machine is as good as it looks. Cartridge has been rewound with fresh tape cart so it’s good to go

  • 110v model.
  • A step-down transformer is required in the UK/EU.
  • We do not recommend using cheap generic Chinese mains transformers and can supply a high quality UK-made unit if required. 

Please note that when run in countries with mains supply at 50Hz (like the UK/EU) as opposed to the 60Hz in North America, there can be some hum from the motor – this is a physical hum rather than audio and does not affect the operation of the machine.

Price includes VAT at 20% (for sales in UK/EU) – buyers outside the EU please contact us for tax-free prices. VAT-free sales possible to businesses and individuals in the EU (outside the UK) with a valid VAT Number.



The Weird and the Wonderful – An Auction Update

The Weird and the Wonderful – An Auction Update

We can't stop here, this is bat country! Our next auction (November 22nd) features some head-turning, show-stopping synths, however we also wanted to put the spotlight...

PUBLISHED: 21st Nov 2023

Teaching Machines Wellspring Reverb Review

Teaching Machines Wellspring Reverb Review

Tony takes a dive into the new Welsh-made Wellspring Stereo Reverb and comes up with a very big smile on his face.

PUBLISHED: 17th Oct 2023



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).

Select your currency