madbeanpedals::forum

Projects => General Questions => Requests => Topic started by: jimilee on July 18, 2013, 02:34:01 AM

Title: Double Chorus request
Post by: jimilee on July 18, 2013, 02:34:01 AM
 I would love to see a double chorus PCB. I'd never even heard of one until recently.
Title: Re: Double Chorus request
Post by: Scruffie on July 18, 2013, 02:43:48 AM
Like the BOSS DC-2? Or have you got something else in mind.

Btw, I know Behringer get a lot of hate but there DC-2 clone is supposedly very good and the price for a 2 BBD effect can't be knocked.
Title: Re: Double Chorus request
Post by: jimilee on July 18, 2013, 03:22:08 AM
Mr black pedals has an awesome one, sounds super wavy. I didn't realize anyone else made one. Behringer.....
Title: Re: Double Chorus request
Post by: Scruffie on July 18, 2013, 03:29:11 AM
Ah... that's a bit different and also digital.

Close as you'll get DIY analog will be the DC-2 though probably, or the Behringer clone as mentioned.
Title: Re: Double Chorus request
Post by: jimilee on July 18, 2013, 03:31:31 AM
Behringer.... I wonder what it would sound like to put to choruses in a 1590bb and use them both at the same time.
Title: Re: Double Chorus request
Post by: ch1naski on July 18, 2013, 03:32:42 AM
Jack is doing some really cool stuff . I built a clone of his latest opamp booster, sounds pretty damn good. But his modulation stuff is way way cool.
Title: Re: Double Chorus request
Post by: ch1naski on July 18, 2013, 03:33:52 AM
one chorus feeding another an already modulated signal? hmmm
Title: Re: Double Chorus request
Post by: jimilee on July 18, 2013, 03:35:28 AM
Yes, more is more better right? It would either be really cool, or a noisy mess.
Title: Re: Double Chorus request
Post by: RobA on July 18, 2013, 03:39:34 AM
Hmm, the PCB I just sent off to be prototyped can generate LFO's in quadrature. If you don't mind spending a ton on BBD's ...

As far as Behringer goes, I've got their clone of the EHX Small Stone. It's kinda crappily made, but it sounds incredible -- hard to beat really.
Title: Re: Double Chorus request
Post by: jimilee on July 18, 2013, 03:41:45 AM
Hmmm. Spending a ton on bbd's isn't fun...what are you designing?
Title: Re: Double Chorus request
Post by: RobA on July 18, 2013, 03:54:14 AM
Well, it's not specific to a chorus. It's a programmable, digital control board for outputting various CV type things. Since the CV's are programmable, they can be made to put out pretty much any waveform and voltage level. So, you could take a couple of chorus boards, and replace their LFO's with output from this board and get them to be a really deep chorus. From doing chorus effects in digital, I think that quadrature LFO's do a really nice job of creating dense chorus sounds. It would also just be possible to make a board that had two choruses on it, could be BBD or PT2399 or anything else, and control them from the other board too.
Title: Re: Double Chorus request
Post by: Scruffie on July 18, 2013, 03:58:17 AM
Quote from: jimilee on July 18, 2013, 03:31:31 AM
Behringer.... I wonder what it would sound like to put to choruses in a 1590bb and use them both at the same time.
Not how you'd like :D

The DC-2 uses 2 BBDs and 2 Clocks with inverted LFOs if I recall... so they're in sync.

Quote from: RobA on July 18, 2013, 03:39:34 AM
Hmm, the PCB I just sent off to be prototyped can generate LFO's in quadrature. If you don't mind spending a ton on BBD's ...

As far as Behringer goes, I've got their clone of the EHX Small Stone. It's kinda crappily made, but it sounds incredible -- hard to beat really.
I dunno, i've got the behringer small stone too, the knob and toggle are a little cheap yeah but once you true bypass it, it's got a decent metal enclosure, I think they can take a decent beating.

Always a rehouse job!

Title: Re: Double Chorus request
Post by: RobA on July 18, 2013, 04:16:37 AM
Quote from: Scruffie on July 18, 2013, 03:58:17 AM
[...]
I dunno, i've got the behringer small stone too, the knob and toggle are a little cheap yeah but once you true bypass it, it's got a decent metal enclosure, I think they can take a decent beating.

Always a rehouse job!

Yeah, this is exactly right and I haven't even bothered to rehouse mine yet. The pot doesn't feel like it's going to break or anything. At some point, I'll probably pull it apart and mix it in with something else. It really does sound good.

Is the Behinger DC-2 clone a couple of BBD's? That could be interesting.
Title: Re: Double Chorus request
Post by: ch1naski on July 18, 2013, 04:25:03 AM
Quote from: Scruffie on July 18, 2013, 03:58:17 AM
Quote from: jimilee on July 18, 2013, 03:31:31 AM
Behringer.... I wonder what it would sound like to put to choruses in a 1590bb and use them both at the same time.
Not how you'd like :D

The DC-2 uses 2 BBDs and 2 Clocks with inverted LFOs if I recall... so they're in sync.

Quote from: RobA on July 18, 2013, 03:39:34 AM
Hmm, the PCB I just sent off to be prototyped can generate LFO's in quadrature. If you don't mind spending a ton on BBD's ...

As far as Behringer goes, I've got their clone of the EHX Small Stone. It's kinda crappily made, but it sounds incredible -- hard to beat really.
I dunno, i've got the behringer small stone too, the knob and toggle are a little cheap yeah but once you true bypass it, it's got a decent metal enclosure, I think they can take a decent beating.

Always a rehouse job!


yea, the synchronizing is the part i was wondering about.
Title: Re: Double Chorus request
Post by: Scruffie on July 18, 2013, 04:33:52 AM
Quote from: RobA on July 18, 2013, 04:16:37 AM
Quote from: Scruffie on July 18, 2013, 03:58:17 AM
[...]
I dunno, i've got the behringer small stone too, the knob and toggle are a little cheap yeah but once you true bypass it, it's got a decent metal enclosure, I think they can take a decent beating.

Always a rehouse job!

Yeah, this is exactly right and I haven't even bothered to rehouse mine yet. The pot doesn't feel like it's going to break or anything. At some point, I'll probably pull it apart and mix it in with something else. It really does sound good.

Is the Behinger DC-2 clone a couple of BBD's? That could be interesting.
Don't think I will rehouse mine, I dig the big old EHX style boxes.

2 x 3207 BBDs, 2 x 3102 Clocks, 2 x 571 Companders, just like the original, only cool audio chip instead of panasonic.

For $30 or whatever it is (and the price of an original) insane bargain, think the Behringer even offers up a few more tonal options due to the switch type used if i'm not mistaken.
Title: Re: Double Chorus request
Post by: RobA on July 18, 2013, 04:38:56 AM
$32(US) at Amazon. That's a pretty killer deal. I just watched a demo on YouTube. It does seem to have more modes because you can blend the four modes by selecting multiple radio buttons. I'm assuming it's SMD, could make modding a bit more fun.
Title: Re: Double Chorus request
Post by: kothoma on July 18, 2013, 05:22:30 AM
Quote from: jimilee on July 18, 2013, 03:35:28 AM
more is more better

That's why I'm not sure that you really want synched LFOs, even if LFOs in quadrature can produce great effects.
For a start, I'd go for two CE2s in series (Purple Rain?), modulate the modulated signal again.
Or make one a Small Clone, individually switchable, plus an order switch.
You could go wild with different stereo options. Probably not for bass, though?
Serial/parallel-switch.
Title: Re: Re: Re: Double Chorus request
Post by: ch1naski on July 18, 2013, 05:41:46 AM
Quote from: Scruffie on July 18, 2013, 04:33:52 AM
Quote from: RobA on July 18, 2013, 04:16:37 AM
Quote from: Scruffie on July 18, 2013, 03:58:17 AM
[...]
I dunno, i've got the behringer small stone too, the knob and toggle are a little cheap yeah but once you true bypass it, it's got a decent metal enclosure, I think they can take a decent beating.

Always a rehouse job!

Yeah, this is exactly right and I haven't even bothered to rehouse mine yet. The pot doesn't feel like it's going to break or anything. At some point, I'll probably pull it apart and mix it in with something else. It really does sound good.

Is the Behinger DC-2 clone a couple of BBD's? That could be interesting.
Don't think I will rehouse mine, I dig the big old EHX style boxes.

2 x 3207 BBDs, 2 x 3102 Clocks, 2 x 571 Companders, just like the original, only cool audio chip instead of panasonic.

For $30 or whatever it is (and the price of an original) insane bargain, think the Behringer even offers up a few more tonal options due to the switch type used if i'm not mistaken.
Serious? 30 bucks?  Put it in a nice enclosure and forget it's a behringer, good to go.
Sent from my Nexus 7 using Tapatalk 2
Title: Re: Double Chorus request
Post by: kothoma on July 18, 2013, 06:18:13 AM
Quote from: Scruffie on July 18, 2013, 04:33:52 AM
Quote from: RobA on July 18, 2013, 04:16:37 AM
Is the Behinger DC-2 clone a couple of BBD's? That could be interesting.
2 x 3207 BBDs, 2 x 3102 Clocks, 2 x 571 Companders, just like the original, only cool audio chip instead of panasonic.

So you're talking about Behringer CC300?
Not noisy like so many others of them?

That plastic enclosures of their pedals are terrible.
Never even try to put a battery in (or out again).

No knob twiddling on a DC-2?
Title: Re: Double Chorus request
Post by: jimilee on July 18, 2013, 02:25:25 PM
Quote from: kothoma on July 18, 2013, 05:22:30 AM
Quote from: jimilee on July 18, 2013, 03:35:28 AM
more is more better

That's why I'm not sure that you really want synched LFOs, even if LFOs in quadrature can produce great effects.
For a start, I'd go for two CE2s in series (Purple Rain?), modulate the modulated signal again.
Or make one a Small Clone, individually switchable, plus an order switch.
You could go wild with different stereo options. Probably not for bass, though?
Serial/parallel-switch.
Yep bass would be right.
Title: Re: Double Chorus request
Post by: kothoma on July 24, 2013, 07:47:40 AM
Quote from: kothoma on July 18, 2013, 06:18:13 AM
Quote from: Scruffie on July 18, 2013, 04:33:52 AM
Quote from: RobA on July 18, 2013, 04:16:37 AM
Is the Behinger DC-2 clone a couple of BBD's? That could be interesting.
2 x 3207 BBDs, 2 x 3102 Clocks, 2 x 571 Companders, just like the original, only cool audio chip instead of panasonic.

No knob twiddling on a DC-2?

Looking at the schematic (http://experimentalistsanonymous.com/diy/Schematics/Chorus/BOSS%20DC-2.jpg (http://experimentalistsanonymous.com/diy/Schematics/Chorus/BOSS%20DC-2.jpg)) it would be easy to reintroduce rate and depth knobs in the lfo...

Title: Re: Double Chorus request
Post by: kothoma on July 24, 2013, 10:31:36 AM
Quote from: jimilee on July 18, 2013, 02:34:01 AM
I would love to see a double chorus PCB. I'd never even heard of one until recently.

Quote from: jimilee on July 18, 2013, 03:22:08 AM
Mr black pedals has an awesome one, sounds super wavy.

Back to your original posts...

It's called a double chorus, but the manual states "Super-extra-plus-plus chorusing via four modulated delay lines".
Looks like it's monaural.
No hint on the actual architecture (1-2-3-4 serial, 1|2|3|4 parallel, 1|2 - 3|4, 1-2 | 3-4, 1-2-3 | 4, 1|2|3 - 4, 1 - 2|3 - 4, whatever).

Any case, quite different from a DC-2 (two delay lines in parallel with out-of-phase lfo for stereo effect).
Title: Re: Double Chorus request
Post by: Scruffie on July 24, 2013, 04:14:01 PM
Quote from: kothoma on July 24, 2013, 07:47:40 AM
Quote from: kothoma on July 18, 2013, 06:18:13 AM
Quote from: Scruffie on July 18, 2013, 04:33:52 AM
Quote from: RobA on July 18, 2013, 04:16:37 AM
Is the Behinger DC-2 clone a couple of BBD's? That could be interesting.
2 x 3207 BBDs, 2 x 3102 Clocks, 2 x 571 Companders, just like the original, only cool audio chip instead of panasonic.

No knob twiddling on a DC-2?

Looking at the schematic (http://experimentalistsanonymous.com/diy/Schematics/Chorus/BOSS%20DC-2.jpg (http://experimentalistsanonymous.com/diy/Schematics/Chorus/BOSS%20DC-2.jpg)) it would be easy to reintroduce rate and depth knobs in the lfo...


Think a DIY project (topopiccione?) and boutique cloner out there do this, the presets seem to have kept people pretty happy though.

Quote from: kothoma on July 24, 2013, 10:31:36 AM
Quote from: jimilee on July 18, 2013, 02:34:01 AM
I would love to see a double chorus PCB. I'd never even heard of one until recently.

Quote from: jimilee on July 18, 2013, 03:22:08 AM
Mr black pedals has an awesome one, sounds super wavy.

Back to your original posts...

It's called a double chorus, but the manual states "Super-extra-plus-plus chorusing via four modulated delay lines".
Looks like it's monaural.
No hint on the actual architecture (1-2-3-4 serial, 1|2|3|4 parallel, 1|2 - 3|4, 1-2 | 3-4, 1-2-3 | 4, 1|2|3 - 4, 1 - 2|3 - 4, whatever).

Any case, quite different from a DC-2 (two delay lines in parallel with out-of-phase lfo for stereo effect).
It is very different in design (digital for a start) but I think a DC-2 would be the most pleasing DIYable (without programming) alternative out there.
Title: Re: Double Chorus request
Post by: jimilee on July 24, 2013, 04:16:31 PM
Is there a DC-2 DIY build?
Title: Re: Double Chorus request
Post by: Scruffie on July 24, 2013, 04:18:15 PM
Quote from: jimilee on July 24, 2013, 04:16:31 PM
Is there a DC-2 DIY build?
One on FSB, copy of the Original BOSS PCB and one on a website I think is called topopiccione.
Title: Re: Double Chorus request
Post by: kothoma on July 24, 2013, 04:26:52 PM
Quote from: Scruffie on July 24, 2013, 04:14:01 PM
Quote from: kothoma on July 24, 2013, 10:31:36 AM
Quote from: jimilee on July 18, 2013, 02:34:01 AM
I would love to see a double chorus PCB. I'd never even heard of one until recently.

Quote from: jimilee on July 18, 2013, 03:22:08 AM
Mr black pedals has an awesome one, sounds super wavy.

Back to your original posts...

It's called a double chorus, but the manual states "Super-extra-plus-plus chorusing via four modulated delay lines".
Looks like it's monaural.
No hint on the actual architecture (1-2-3-4 serial, 1|2|3|4 parallel, 1|2 - 3|4, 1-2 | 3-4, 1-2-3 | 4, 1|2|3 - 4, 1 - 2|3 - 4, whatever).

Any case, quite different from a DC-2 (two delay lines in parallel with out-of-phase lfo for stereo effect).
It is very different in design (digital for a start) but I think a DC-2 would be the most pleasing DIYable (without programming) alternative out there.

So it's digital, hm.
Title: Re: Double Chorus request
Post by: kothoma on July 24, 2013, 04:30:58 PM
Quote from: Scruffie on July 24, 2013, 04:18:15 PM
Quote from: jimilee on July 24, 2013, 04:16:31 PM
Is there a DC-2 DIY build?
One on FSB, copy of the Original BOSS PCB and one on a website I think is called topopiccione.

http://topopiccione.atspace.com/PJ18BossDC2.html
Thanks for that hint!
Title: Re: Double Chorus request
Post by: jimilee on July 24, 2013, 04:49:24 PM
Oh yeah, that's where my bass balls pedal layout came from
Title: Re: Double Chorus request
Post by: Scruffie on July 24, 2013, 04:53:30 PM
Quote from: kothoma on July 24, 2013, 04:26:52 PM
Quote from: Scruffie on July 24, 2013, 04:14:01 PM
Quote from: kothoma on July 24, 2013, 10:31:36 AM
Quote from: jimilee on July 18, 2013, 02:34:01 AM
I would love to see a double chorus PCB. I'd never even heard of one until recently.

Quote from: jimilee on July 18, 2013, 03:22:08 AM
Mr black pedals has an awesome one, sounds super wavy.

Back to your original posts...

It's called a double chorus, but the manual states "Super-extra-plus-plus chorusing via four modulated delay lines".
Looks like it's monaural.
No hint on the actual architecture (1-2-3-4 serial, 1|2|3|4 parallel, 1|2 - 3|4, 1-2 | 3-4, 1-2-3 | 4, 1|2|3 - 4, 1 - 2|3 - 4, whatever).

Any case, quite different from a DC-2 (two delay lines in parallel with out-of-phase lfo for stereo effect).
It is very different in design (digital for a start) but I think a DC-2 would be the most pleasing DIYable (without programming) alternative out there.

So it's digital, hm.
4 Analog Delay lines in a box that small!? Yes it is :) I think it uses the Spin Semi chip like most (all?) the Mr.Black pedals but you'd have to check a gut shot to confirm that.

Now... if Brian Did a DC-2 clone with SIP ICs...
Title: Re: Double Chorus request
Post by: kothoma on July 25, 2013, 06:00:58 AM
Quote from: Scruffie on July 24, 2013, 04:53:30 PM
Quote from: kothoma on July 24, 2013, 04:26:52 PM
Quote from: Scruffie on July 24, 2013, 04:14:01 PM
Quote from: kothoma on July 24, 2013, 10:31:36 AM
Quote from: jimilee on July 18, 2013, 02:34:01 AM
I would love to see a double chorus PCB. I'd never even heard of one until recently.

Quote from: jimilee on July 18, 2013, 03:22:08 AM
Mr black pedals has an awesome one, sounds super wavy.

Back to your original posts...

It's called a double chorus, but the manual states "Super-extra-plus-plus chorusing via four modulated delay lines".
Looks like it's monaural.
No hint on the actual architecture (1-2-3-4 serial, 1|2|3|4 parallel, 1|2 - 3|4, 1-2 | 3-4, 1-2-3 | 4, 1|2|3 - 4, 1 - 2|3 - 4, whatever).

Any case, quite different from a DC-2 (two delay lines in parallel with out-of-phase lfo for stereo effect).
It is very different in design (digital for a start) but I think a DC-2 would be the most pleasing DIYable (without programming) alternative out there.

So it's digital, hm.
4 Analog Delay lines in a box that small!? Yes it is :) I think it uses the Spin Semi chip like most (all?) the Mr.Black pedals but you'd have to check a gut shot to confirm that.

Now... if Brian Did a DC-2 clone with SIP ICs...

There are DIY projects using the Spin Semiconductor FV-1 and external ROM.

For a DC-2 clone I'd rather rehouse that Behringer thingy and add a few knobs (so it's only half cheating).
Title: Re: Double Chorus request
Post by: raulduke on July 31, 2013, 04:28:36 PM
Just bought a Behringer Space Chorus CC300 in a sale.

It's supposedly a clone of the Roland/Boss Dimension C.

Dimension Chorus sounds awesome on synths so looking forward to trying it.

Unfortunately to build one would be a real ball ache IMO (MN chips, loads of parts, etc.).
Title: Re: Double Chorus request
Post by: kothoma on August 01, 2013, 11:48:02 AM
Quote from: raulduke on July 31, 2013, 04:28:36 PM
Just bought a Behringer Space Chorus CC300 in a sale.

It's supposedly a clone of the Roland/Boss Dimension C.

Dimension Chorus sounds awesome on synths so looking forward to trying it.

Unfortunately to build one would be a real ball ache IMO (MN chips, loads of parts, etc.).

I'm really interested to hear what you think when you get it. Maybe you also take a peek inside?
Title: Re: Double Chorus request
Post by: Clayford on August 01, 2013, 04:31:55 PM
Quote from: kothoma on August 01, 2013, 11:48:02 AM

I'm really interested to hear what you think when you get it. Maybe you also take a peek inside?
+1 on on this. Especially if we're able to modify it out and get knobs for rate and depth. 
Title: Re: Double Chorus request
Post by: raulduke on August 02, 2013, 03:48:56 PM
Mines not arrived yet.

But here you go (found on teh webz):

(http://www.google.co.uk/imgres?imgurl=http://i85.photobucket.com/albums/k72/nathanscribe/DSCN0120.jpg&imgrefurl=http://www.stompboxzone.com/forum/viewtopic.php?f%3D5%26t%3D165%26start%3D20&h=600&w=800&sz=86&tbnid=_Dm697Zl0o0jJM:&tbnh=95&tbnw=127&zoom=1&usg=__E3GVnxe_zRxvKJBuxZVWb6cRYdg=&docid=NinGz-mk4nf6NM&sa=X&ei=fNT7UeoHzN09mKyB6Ao&ved=0CHUQ9QEwCQ&dur=240)
Title: Re: Double Chorus request
Post by: kothoma on August 02, 2013, 04:10:11 PM
Quote from: raulduke on August 02, 2013, 03:48:56 PM
Mines not arrived yet.

But here you go (found on teh webz):

(http://www.google.co.uk/imgres?imgurl=http://i85.photobucket.com/albums/k72/nathanscribe/DSCN0120.jpg&imgrefurl=http://www.stompboxzone.com/forum/viewtopic.php?f%3D5%26t%3D165%26start%3D20&h=600&w=800&sz=86&tbnid=_Dm697Zl0o0jJM:&tbnh=95&tbnw=127&zoom=1&usg=__E3GVnxe_zRxvKJBuxZVWb6cRYdg=&docid=NinGz-mk4nf6NM&sa=X&ei=fNT7UeoHzN09mKyB6Ao&ved=0CHUQ9QEwCQ&dur=240)

Yeah! Hope this shows:
(http://i85.photobucket.com/albums/k72/nathanscribe/DSCN0120.jpg)

So it's not all smd.
Title: Re: Double Chorus request
Post by: RobA on August 02, 2013, 04:45:47 PM
I wonder if there are parts on the other side. I don't see any companders.

Assuming those are the oscillator sections below the 3102's, it definitely looks mod-able.
Title: Re: Double Chorus request
Post by: kothoma on August 02, 2013, 05:07:04 PM
And there should be two more dual op amps (5 total).

I'd like to see what it looks like under the switches.
Title: Re: Double Chorus request
Post by: kothoma on August 10, 2013, 06:22:25 AM
Quote from: RobA on August 02, 2013, 04:45:47 PM
I wonder if there are parts on the other side. I don't see any companders.

OK, at least one compander more to the right:

(http://i85.photobucket.com/albums/k72/nathanscribe/DSCN0121.jpg)

(http://i85.photobucket.com/albums/k72/nathanscribe/DSCN0119.jpg)

So it's likely that there are parts on the other side.