The Ensoniq EXP series of expansion boards is compatible with the MR-61, MR-76, MR-Rack, ZR-76 (which can take 3 cards) and ASR-X (which can take 1). They contain from 2MB to 24MB of sounds.
The following cards were produced:
The EXP-2 is not necessary in the MR keyboards. It was meant to add the missing drum sounds from those into the MR-Rack.
The EXP-4 board is built into the Ensoniq ZR-76.
In addition, the MRC-1 "Synth Banks" ROM sound card containing 180 sounds was available for use in the MR series card slot ($99.95 list).
Ensoniq EXP-1 The Real World Wave Expansion Board RARE! ($459)
Ensoniq EXP-3 Urban Dance Project Expansion Board ($381.46)
Ensoniq EXP-4 Perfect Piano card expansion MR rack ZR ASRX - Worldwide Shipment ($250)
Ensoniq EXP-2 MR-RACK DRUM EXPANDER EXPANSION BOARD Mr rack ZR ASR X Pro - Worldwide Shipment ($240)
MUST SEE!!! ENSONIQ ZR76 PLUS EXP-4 EXPANSION CARD, SERVICED IN AMAZING CONDITION! ($1,395)
MUST SEE!!! ENSONIQ ZR76 PLUS EXP-4 EXPANSION CARD, SERVICED IN AMAZING CONDITION! ($1,095)
MUST SEE!!! ENSONIQ ZR76 PLUS EXP-4 EXPANSION CARD, SERVICED IN AMAZING CONDITION! ($1,095)
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