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Originally Posted by
clusterchord
β‘οΈ
so i am toying with the idea of picking up one of them - midiverb ii or quadraverb, just to tryout. they are dirt cheap, about the price of a crap distortion pedal, so why the hell not. can anyone comment on the difference btwn the two, especially in context of ambiental, longer diffused sounds?
The Midiverb II and Quadraverb are totally different. The Midiverb II has a bunch of unusual algorithms because the processor is extremely primitive. Rather than having a real multiplier it can only multiply by 0.5. It's easy to make an allpass filter that way, so a lot of the reverb algorithms are based on chains of allpasses. These have a characteristic "build" to the reverb onset, although this isn't present in all the algorithms. The unexpected thing about the Midiverb II is its ability to do really great ambience algorithms and small spaces. Usually if you take an 80s or 90s reverb and set the decay time to something very short, it will sound awful. The Midiverb II sounds great. The other nice thing is that all the algorithms are actually quite different. They're not just the same algorithm with a range of different decay times (remember there's no multiplier so the decay time can't be finely adjusted anyway). There's actually a quite large range of very different sounding algorithms. There are only like 3 really long ambient reverbs, but they're very good.
The Quadraverb uses a more conventional DSP. The processing power is sort of respectable for 1989, but between 4-ish effect blocks it's stretched pretty thin. The 3 band EQ/reverb configuration uses higher quality reverb. This is fairly decent and has modulation (although it's just a single LFO, nothing fancy). The reverbs in the other configurations are pretty crappy, but they can still be interesting. They don't really get super long or lush.
The delay effects are nice, mostly because you can control the delay time from a mod wheel or sequencer or whatever.
I'm pretty sure that's happening here starting at around 6:00 (although it could be something else):
The modulation effects are sort of unremarkable, except the ring modulator. It's actually a frequency shifter. You can mix the shift up and shift down outputs; when they're equal it's equivalent to ring modulation.
here's the ring modulator again:
There's also a resonator algorithm that's basically a less flexible version of the Lexicon resonant chords thing.
The original Midiverb and Midifex should be more or less similar to the Midiverb II, but with different algorithms. The original Microverb is a cut down Midiverb II. As far as I know the Midiverb III is also a more conventional design and thus isn't really as interesting. I think the Midiverb 4 is like a less powerful version of the Quadraverb 2/Wedge.
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im also considering picking up spx990 or maybe korg a2. i am a sucker for that early 90s tone. hardware reverbs in general. and effect being crappy or exhilarating is always about context.
I think the Korg A2 would be a good choice, but I dunno about the SPX990. Seems to me that the Pro R3 or REV500 would be more interesting. Or the Roland DEP5. Those are the ones I'd look for, anyway. The Yamaha FX770 is a fairly flexible multi-effect processor that seems to get overlooked.
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i sometimes use drp16 which is ultimate grindy late 70s digi crap. when it works it outshines all my lexicons and eventides. they just cannot do that sound at all.
I want to reverse engineer that one. I suspect it's based on the DRS 78.