01
From the Community
From the community
No conversations about the MPX R1 yet — own one or know it well? Ask the first question, share a fix, or post your unit.
02
Document Library
03
Utilities & Downloads
Lexicon MPX R1 OS v2.11
2.11This is a collection of firmwares for vintage synths and midi equipment. Source: archive.org item vintage-synth-firmware-collection.
firmware·18.0 KB
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Audio Demos
05
Compatible Sound ROMs
06
EPROM Archive
Lexicon MPX R1 pedalboard
os·E174A1960
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Modifications
08
Owner Registry
Production figures for the MPX R1 were never widely published, so there’s no official record of how many were built — or how many survive. This registry is a community census: every owner who logs their unit makes it the closest thing there is to a real count.
0units registered
0 serials recorded
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Own one? Add it to My Gear to join the registrySerial number, condition, and configuration are aggregated anonymously into the census.
09
System Components
CONTENTS
01From the Community02Document Library03Utilities & Downloads04Audio Demos05Compatible Sound ROMs06EPROM Archive07Modifications08Owner Registry09System ComponentsManufacturer
Lexicon
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Specifications
- midi
- midi out/remote: 7-pin din connector (compatible with standard 5-pin midi)
- power
- 9vac, 1a wall transformer provided
- weight
- 9.5 lbs
- display
- 3-digit led indicates program number and tempo rate
- dimensions
- 23 in x 8 in x 3 in (whd) (58.42 cm x 20.32 cm x 7.62 cm)
- midi implementation
- true