
Two Matrix-12s on the bay. One
here, and one
here. Title link takes you to more shots.
Update: consensus is that the auctions are both frauds. Check out the comments of this post. And note, I DO NOT put posts up for the sake of the auction. I put them up for the shots and details only. The auction links are a courtesy and the equivalent of via flickr, via YouTube, via joe, etc. It is not the purpose of these posts.
Some details from both:
"This amazing machine was the last of the great Oberheim analog machines; built before Oberhiem's acquisition by Gibson/Norlin. Computer controlled, with a revolutionary matrix modulation section and full midi implementation, it set a new standard for power and sound that hasn't really been equaled. Each patch features 12 voices. Each voice can have a different sound assigend to it. These voices can then be played polyphonically in rotation, or grouped by polyphonic zones. Or stack them all for a monster 12 voice monophonic lead to rock the earth! Via midi, you can even play every voice individually on it's own channel - it's like having 12 individual dual oscillator monophonic analog synthesizers, and at the same time having a 12 voice polyphonic 12 timbre synth.
# Audio Sources 12 Independent Velocity, Release Velocity and Pressure (After-Touch) responsive analog Voices. NOTE: On this unit, Release Velocity and Pressure are accessible only by external MIDI controller.
# Voice Control Assignment can be per MIDI Input Channel (12 maximum) or per polyphonic grouping in up to six Zones.
On-Board ("Local") Controllers
# 61-Note (C0 to C5) five-Octave Velocity, Release Velocity and Pressure (After-Touch) sensitive Keyboard, non-weighted.
# 2 Non-dedicated Modulation Levers.
# 2 Non-dedicated Pedal Inputs.
Voice Architecture (per Voice)
# 2 Voltage Controlled Oscillators ("VCOs")
# 1 15-Mode Voltage Controlled Filter ("VCF")
# 15 Voltage Controlled Amplifiers ("VCA")
# 1 FM Modulation Generator
# 1 Lag Processor
# 3 Tracking Generators
# 5 Digital Envelopes
# 5 Digital Low Frequency Oscillators ("LFOs")
# 1 Noise Generator
Modulation
# Matrix Modulation™ System utilizing 27 possible Sources routed to 47 possible Destinations in up to 20 "Modulation Pages" per Voice.
# 12 Permanent ("hardwired") modulations per Voice.
MIDI Implementation
# MIDI IN, MIDI OUT and MIDI THRU Ports
# Transmit and Receive Channel select independent per Voice (MIDI MONO Mode) or per polyphonic Zone.
MIDI Modes
# Mode 1: OMNI On, Poly
# Mode 3: OMNI Off, Poly
# Mode 4: OMNI Off, Mono
MIDI Controllers
# Indendent Controller Number select
# Controllers ON/OFF select
# Patch Change Commands ON/OFF select
Miscellaneous MIDI Features
# System Exclusive ON/OFF select
# MIDI Echo ON/OFF select
Miscellaneous
# Three 40-Character Fluorescent Displays
# 100 SINGLE Patch Memory Locations
# 100 MULTI Patch Memory Locations
# "Chain" Programming Mode
# Cassette Interface - FROM (input) and TO (output) ports
# Trigger Input Requirements (selectable): +5V DC signal minimum, 1ms Pulse Width
Power Requirements (selectable):
# North America and Japan: 95 - 120 V A.C., 50 - 60Hz
# Europe: 200 - 230 V A.C., 50 - 60 Hz
Dimensions
# Length: 38-7/16 in. (97.63 cm)
# Width: 20-5/16 in. (51.59 cm)
# Height (maximum, Including feet): 5-15/16 in. (15.08 cm)
# Net Weight: 33 lbs. (14.97 kg.)"
UPDATE: Read the comments of this post. For auction posts it's usually a good idea to check out the comments to see what others are saying.