Skip to product information
1 of 9

Yamaha Ensemble Mixer EM-90

Yamaha Ensemble Mixer EM-90

Brand: Yamaha

Regular price £625.00 GBP | Inc.VAT: £750.00 GBP
Regular price Sale price £625.00 GBP
Sale Sold out
Shipping calculated at checkout.

No longer in stock. If you're interested in something similar, please make an enquiry below.

1970s mixer with a truckload of sonic character? Spring reverb? Unique drum machine? Amazing looks? You CAN have it all!

Make An Enquiry
View full details

Product Description

Yamaha EM-90 mixer for sale. Hear the drum machine in action below.

This groundbreaking mixer/beatbox/spring reverb series was used by Mtume to astonishing effect when he played with Miles Davis (who'd been gifted this, along with a YC-45D organ by his Japanese tour sponsors, Yamaha) on the live Agharta, Pangea and Dark Magus recordings. Mtume put it through his Mu-tron Bi-Phase and controlled it with a volume pedal, using the beatbox more for texture ('tapestry' as he put it) than rhythm. Read more about these incredible recordings in this excellent article from The Quietus.

This is the less common version without the later "A" - that one is black, silver and blue with hifi-type knobs, whereas this is an earlier vision in cream and green. While both the EM90 and EM90A sound very similar, we suspect it was the slightly later "A" that would've been presented to Miles by Yamaha.

The basic spec is below, but first this original advert unearthed by the always superb Preservation Sound really says it all (and a lot more besides :) ):

Original advert for Yamaha EM-90 mixer


  • Six channels with 1/4'' inputs on the front

  • Line, Guitar, Mic switch for each channel

  • Treble, Bass, Volume and a reverb switch for each channel as well.

  • A, B, Speaker mute button for each channel

  • Built in Drum Machine With the following patterns: March, Waltz, Swing, Slow Rock, Jazz Rock, Rhumba, Bosanova, Tango + Tempo and Volume knob for the Drum machine


Has some low level oxidation on some of the casing and other minor signs of age, but overall this is a great looking piece of kit. See the photos or get in touch for more information.

Voltage Information

100v Japanese model - it will run on North American mains 115/120v without a transformer (we run all our tests using 120v power); however, a step-down transformer is recommended for extended use. 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.


For sales in UK/EU the price will include 20% VAT. If you have an EU VAT number (outside the UK) you can enter it at check out to have VAT removed.