Upgrading Quadraverb To Quadraverb Plus?

[sausage fingers]

Looking through some old gear in the loft, i just discovered i have a nearly mint Alesis Quadraverb, i believe that by replacing the system eprom you can upgrade the unit to Quadraverb Plus spec giving multitap delay options. I noticed theres a few people selling the chips on ebay. Anyone ever done this upgrade, if so where did you get the chip and were the results worth the trouble?
Thanks
Rob

[47guitarman]

Hi Rob,
I did this modification to a Quadraverb that I owned many years ago. (Late 80's, early 90's maybe?)
It is quite simple to do and definitely worthwhile as it gives the multitap facility.
At that time I think the chip was about £10 and I think I got it from Chandlers.
That was for just the chip with fitting instructions and updated operating manual, no settings for Shadows sounds.
I managed, eventually, to produce some reasonable echoes and used it for a couple of years before selling it on.
I would be inclined to buy one of the preprogrammed chips advertised (providing they are "legal" and not a rip-off of someone else's programs) as it will save a lot of time in programming.
Hope this helps.
Dave

[JimN]

What Dave said.

I did the same to a Quadraverb a few years ago. The unit was intended as a gift for a friend, and the upgrade to Quadraverb Plus went swimmingly well.

[dave robinson]

I briefly owned a Quadraverb + and found it very noisy, thus sending it back for a refund. There are too many good options around these days to consider putting up with background noise.