Yamaha AVX1

AWM voice expander

Yamaha AVX1 AWM voice expander Electone

1987
Original price unknown

The Yamaha AVX1 is a super rare MIDI-compatible AWM Voice Expander that comprise the expanded system of the HX Series Electone. An FM expander was also available: the Yamaha FVX1. The AVX1 is based on Yamaha's advanced wave memory (AWM) engine, which combines and filters sampled sounds to create voices, that was already being experimented with the TX1P and would later power the SY line of synthesizers.

The AVX1 doesn't have onboard samples, but uses external swappable ROM cards made specifically for the HX Series Electone. Up to eight of these cartridges can be inserted in a special drawer. Then it's possible to either play a single tone with 16 notes of polyphony or two of them layered with 8 notes of polyphony each. There are 16 performance slots available to save layer combinations.

Similarly to what is offered on the DMP7 and DMP11, the onboard mixers also has additional effects available: Stereo-Chorus, Stereo-Pan, Symphonic, Phaser, Flanger, Delay, Tremolo, Digital hall, Celeste and Wah.

Other than two German brochures there's no evidence of AVX1 expanders actually existing in the wild.

Yamaha AVX1 and FVX1
Yamaha AVX1 and FVX1
Electone voice cartridges
Electone voice cartridges

Technical
specifications

Sound source

AWM (Advanced Wave Memory)

Simultaneous note output

1 Tone group: 16 notes
2 Tone groups: 8 notes each

Memory capacity

8 voices

Connection terminals and interfaces

Headphones (phone jack)
PACK PORT
MAIN OUT (L/R), MAIN IN (L/R)
AUX OUT (L/R), AUX IN (L/R)
MIDI IN, MIDI OUT (front)
MIDI IN, MIDI OUT, MIDI THRU

Dimensions and weight

480w x 88h x 383.5d (mm)
9Kg

External
links