here are the 'Plus' features (took it from the 'Quadraverb Plus Users Manual Addendum' pdf-File by Alesis) They say there's NO difference in hardware!!
MULTI TAP DELAY - The Multi Tap Delay is a new type of
delay available in the 5 BAND EQ->PITCH->DELAY
configuration where up to 8 taps can be defined in the delay.
The Delay Time, Volume, Panning, and Feedback Amount
can be individually adjusted for each tap as well.
SAMPLING - The QuadraVerb Plus now has the ability to
make a brief digital recording of the input being fed to it,
commonly known as sampling.
AUTO PANNING - Auto Panning allows a signal to
automatically pan from side to side (when the outputs are
connected in stereo) at a selected rate and depth.
TREMOLO MODULATION - Tremolo Modulation is an
effect which automatically varies the volume at a selected
rate and depth, simulating the "Surf Sound" tremolo effect
found on old instrument amplifiers.
RING MODULATOR - The Ring Modulator is a specialized
amplitude modulator that produces an output that contains
only the sum and difference frequencies of its input
waveforms' harmonics. It is most useful for generating
metallic, bell-like sounds.
RESONATORS - A Resonator generates a pitch in addition
to the original input signal, making it possible for a nonpitched
sound to become pitched. There are 5 resonators in
the QuadraVerb Plus.
The features listed above are reason enough for me to try and get the data from the 'Plus' version Eprom. I'm able to program Eproms so I wanna try.
Only need the data (would appreciate to receive them in a WinRAR File...)
Thanks for your reply
The Crimson Thunder
PS: Sorry for my 'German English'...