Akai - C2M Hexacomp

All about modern commercial stompbox circuits from Electro Harmonix over MXR, Boss and Ibanez into the nineties.
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borislavgajic
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Post by borislavgajic »

https://cgi.ebay.com/ws/eBayISAPI.dll?V ... 0307861195

this looks different from other compressor pedals ..........
..is there any chance for schematic???

boris

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Post by moltenmetalburn »

wow that thing looks cool!
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borislavgajic
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Post by borislavgajic »

is it possible to have 6 frequences, and compression controll for each one...???

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briggs
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Post by briggs »

Yeah, I was designing a triple band compressor. It was a huge circuit and I never did finish it but it was making very promising sounds.
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borislavgajic
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...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
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Post by borislavgajic »

so first This circuit to separate bass, mid , hi....and than 3 compressors??? :thumbsup
......not bad,......
Yeah, I was designing a triple band compressor. It was a huge circuit and I never did finish it but it was making very promising sounds.
....hey briggs ...what circuit did you uce for compressor part???
OTA, FET or LDR.............it would be great to do it with tubes!!!

boris
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Post by Cow4prez »

i've played one and it was a noisy mother

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Post by briggs »

LDR.

It was basically 3 gain stages, configured in a similar fashion to the Flatline compressor circuit, arranged in parallel with the envelope section from the lovetone meatball set to control gain. Each stage was set to deal with a different frequency band (lows, mids & highs). I could draw the scheme up again if I could find it. It needed some work (mainly with the envelope section) but if one of you guys wants to take it forward - go for it!

I'm designing a new compressor circuit at the moment using FETs for the gain stage. It'll have a lot more "character" and colour than an op amp based circuit.
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Post by theehman »

I have a NOS one at home. I bought it several years ago when they were on clearance at Musician's Friend and I don't think I ever got around to plugging it in.
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borislavgajic
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Dipthonizer,seekwah,Talkingpedal,morleywha
...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser....
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Post by borislavgajic »

theehman wrote:I have a NOS one at home. I bought it several years ago when they were on clearance at Musician's Friend and I don't think I ever got around to plugging it in.

great.....so is there any chance to see gut shoots?
thanks

boris

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Post by theehman »

borislavgajic wrote:
theehman wrote:I have a NOS one at home. I bought it several years ago when they were on clearance at Musician's Friend and I don't think I ever got around to plugging it in.

great.....so is there any chance to see gut shoots?
thanks

boris
I think that could be arranged. I'll see if I can get some shots this week.
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borislavgajic
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Dipthonizer,seekwah,Talkingpedal,morleywha
...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser....
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Post by borislavgajic »

theehman wrote:
borislavgajic wrote:
theehman wrote:I have a NOS one at home. I bought it several years ago when they were on clearance at Musician's Friend and I don't think I ever got around to plugging it in.

great.....so is there any chance to see gut shoots?
thanks

boris
I think that could be arranged. I'll see if I can get some shots this week.
[smilie=a_okbyenow.gif] thanks

boris

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Post by flood »

if i'm not wrong, this one is digital?

i had te VST plugin they made basedon it. great compressor, but was a BAAAAD M*****F***** on my processor!
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Post by theehman »

I don't think it's very practical for a DIY project. I opened it up and there's 2 full sized boards full of stuff. Does anybody still want gut shots?
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borislavgajic
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Dipthonizer,seekwah,Talkingpedal,morleywha
...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser....
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Post by borislavgajic »

I am interested...while it is opened :oops: ........and if it is traceable.....on what chip compression is based?

so when you find some time,please post some pictures.............thanks

boris

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Post by theehman »

Big ol' gutshots for you. It uses DIP LM13700 and SIP JRC4558L ICs.

Image Image Image Image
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borislavgajic
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Dipthonizer,seekwah,Talkingpedal,morleywha
...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser....
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Post by borislavgajic »

:D wow there are 6 compressors in this one!!!
thank you very much Theehman!!! :thumbsup

boris

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Post by theehman »

borislavgajic wrote::D wow there are 6 compressors in this one!!!
thank you very much Theehman!!! :thumbsup

boris
You are most welcome. Can I put it back together now? :?:
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borislavgajic
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Dipthonizer,seekwah,Talkingpedal,morleywha
...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser....
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Post by borislavgajic »

You are most welcome. Can I put it back together now?
Yes....I would not bother you no more........very nice pictures.....and thanks again :thumbsup

boris

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Post by aion »

theehman wrote: 18 Feb 2009, 18:55 Big ol' gutshots for you. It uses DIP LM13700 and SIP JRC4558L ICs.

Image Image Image Image
Hey Ron... is there a chance you still have these pics anywhere? Would like to see inside this beast, it sounds like an interesting concept.

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Post by theehman »

I don't think so but I'll take a look.
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Home of RonSound effects: http://www.ronsound.com
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