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From: sloan@leadsv.UUCP (Robert Sloan)
Newsgroups: net.music,net.music.synth
Subject: Re: Yamaha REV7 Digital Reverb?
Message-ID: <865@leadsv.UUCP>
Date: Tue, 18-Mar-86 17:19:34 EST
Article-I.D.: leadsv.865
Posted: Tue Mar 18 17:19:34 1986
Date-Received: Fri, 21-Mar-86 05:44:00 EST
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Organization: LMSC-LEADS, Sunnyvale, Ca.
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Xref: watmath net.music:12709 net.music.synth:944
Summary: Yamaha SPX90 is a better bargin

The Yamaha REV7 is a good product but compare it to the Yamaha SPX90.

The SPX90 lists for $699. and is the best bang for the buck of any
effects processor.

The SPX90 has Reverb, Early reflection, Delay, Echo, Modulation,
Auto Pan, Vibrato, Freeze (half second sampling),
ADSR gate, Compression and Parametric
Equilization, Pitch change.  


There are 30 Preset programs and 60 user definable programs.  Single
channel in, Stereo out.   

Preset programs include stereo flange, chorus, Reverb HALL, ROOM,
PLATE etc...

Optional Remote and footswitch.  It includes MIDI.

	31.25 kHZ A/D D/A sampling rate  16 bit linear
	20 Hz to 12 kHz

There are some drawbacks;
	12 kHz is a bit low.
	MIDI effects only program change.  Note on/off is recognized
for pitch change and freeze (sampling to change pitch).  No dynamic
MIDI controler effects.  Also only one program can be used at a time
no combining phase and echo.
	Compared with the Lexicon PCM 70 which has extensive MIDI 
implementation which can change many of the parameters real time
( ie room size ).  The PCM 70 also combines in one program, early
reflections with reverb for a realistic audio space.  But the list on
the PCM 70 is $2000. Buy two SPX90's for that price.

	The SPX90 is comming out this month.