check this out....(first item)
http://www.hobbytron.com/ampsub.html

Amazing deals !!!
 Some of us would do well to try some of those kits out!!!
  The amps look real nice...VU's always look kool !!!

Cab someone explain to me how 1024 stages can give a 1s delay???
The datasheet of a MN3008 (which is 2048 stages) says the delaytime of an audio signal is between 10.24 ~ 102.4ms :?  How do they reach this delay time with half the stages :?:  :?:

My guess would be that they mean decay. I built a similar thing from a magazine article in the early 90's and it was less of a reverb and more of a very short slapback with a bunch of feedback.

Not a very smooth reverb sound but mixed fairly low and with the repeats set to die after a second or so it gave some "space" to a sound.

Check out the Super Delay 30a by Mike Irwin at Modcan (http://www.modcan.com/modhtml/modules.html)  Mike designed this using a pair of MN3005's.  It is spec'd to provide up to 8sec delay *without* recirculation.  That's 1sec per K of BBD space.  How does he do it? Restrict bandwidth.  Bear inmind that such a module is also used for many synth-related purposes other than a faithful rplica of the input signal.

If you are willing to live with something that has pretty much zip in the way of harmonic content, you too can push an MN3008 to 1sec.

....or....how do they get 1 watt out of a LM386...

Incredulous

RDV

By the way, I bought a Danelectro 'Reelecho' a few days ago. It a christmas gift from me to myself :wink:  It's has 1.5s delay time and a sound-on-sound option, which lets you play over an infinite repeating delay loop.
And of course it has a knob to give the signal more 'warmth' which actually cuts the highs with each repeat (but they called it Lo-Fi)

I never heard a real reelecho and I belive it doesn't sounds exactly like one but it's good anyway (and it was cheap: 90€ new with 2 years warranty).

Cool, I didn't know about Mike Irwin's stuff other than his posts here. I should have known he is a ghru.

Hey I've got a few MN3005's :wink:

I have some 1024 stage BBDs that can have 4s of delay.  Mostly it depends on the clock frequency the thing is willing to take-my RD5108ANP's will take frequencies as low as 512hz and there's a built in divide by 2 counter, so the frequency ends up at 256hz.  1024/256=4 seconds.  With the aformentioned MN3008, the min clock frequency is 10khz, and I believe the MN series is delay in seconds=stages/clock*2 so you get 2048/20,000 which is 100ms.  So, they're probably using a better BBD-the MN and SAD series weren't the only BBDs

Other than that, they COULD be referring to decay, but I don't know.  It's not too common to see BBDs used as reverb, they sound disgusting like that

-Colin