CoolAudio Group Buy

theehman · Post by **theehman** » 09 Mar 2010, 17:33

Due to the problems with getting genuine MN3005 ICs, it's been suggested that we do a group buy of the CoolAudio V3205 instead. Since CoolAudio requires a minimum order of $2000 it's been suggested that we order some of the other parts they offer as well. Vote in the poll to decide what we want to order and please base your decision on the 10 piece price. If we can get enough orders for each part we'll get a lower price but final prices won't be decided until the poll is closed. At that time I'll create a spreadsheet with final prices and you'll be able to place your order.
Remember I'll need to add on a bit for customs and handling by CoolAudio. You'll also be responsible for the shipping cost to you when your order is shipped, typically about $5 in the US and around $13 international.

Here's the link to CoolAudio's product page: http://www.coolaudio.com/products.html

Greenmachine · Post by **Greenmachine** » 09 Mar 2010, 19:29

Uhmmm.

I don't know much, but I know how to read a pin out on a datasheet; from what I can tell, the Aquaboy is designed around a MN3101 chip, and the V3102 is a copy of a MN3102, whose pins 1 and 3 (VDD and VSS) are reversed from the MN3101 (1/3 = Gnd/VDD).

Sorry if I'm just ignorant of what VSS is and also if this has been explained already in another thread. Will someone enlighten me please?

Thanks

theehman · Post by **theehman** » 09 Mar 2010, 19:49

Greenmachine wrote:Uhmmm.

I don't know much, but I know how to read a pin out on a datasheet; from what I can tell, the Aquaboy is designed around a MN3101 chip, and the V3102 is a copy of a MN3102, whose pins 1 and 3 (VDD and VSS) are reversed from the MN3101 (1/3 = Gnd/VDD).

Sorry if I'm just ignorant of what VSS is and also if this has been explained already in another thread. Will someone enlighten me please?

Thanks

From Wikipedia: VSS, a label used for negative power supply pin on Field-effect transistor-based integrated circuits (historically, S stands for source)

Short answer: ground

Greenmachine · Post by **Greenmachine** » 09 Mar 2010, 20:55

Thanks,

But this still doesn't explain how you can use a V3102 in place of the MN3101; whose pin-outs for 1 and 3 are reversed.

Scruffie · Post by **Scruffie** » 09 Mar 2010, 20:57

Greenmachine wrote:Thanks,

But this still doesn't explain how you can use a V3102 in place of the MN3101; whose pin-outs for 1 and 3 are reversed.

MN3101 are to drive the 3XX5 series of delay chips, MN3102 drive the 32X5 chips, one's positive and the other is negative I forget which but there are two jumpers on the new Aqua Puss boards specifically for this reason.

ckyvick · Post by **ckyvick** » 09 Mar 2010, 20:58

Greenmachine wrote:Thanks,

But this still doesn't explain how you can use a V3102 in place of the MN3101; whose pin-outs for 1 and 3 are reversed.

i think you mistake the mn3101 with the mn3005. the aqua boy can use the mn3005, mn3205 or the v3205 depending on how you set the jumpers...

Greenmachine · Post by **Greenmachine** » 09 Mar 2010, 22:01

Scruffie wrote:
Greenmachine wrote:Thanks,

But this still doesn't explain how you can use a V3102 in place of the MN3101; whose pin-outs for 1 and 3 are reversed.
MN3101 are to drive the 3XX5 series of delay chips, MN3102 drive the 32X5 chips, one's positive and the other is negative I forget which but there are two jumpers on the new Aqua Puss boards specifically for this reason.

Yes, now this makes sense to me. So you can't use the v3102 with a MN3005, but you could with a MN3205.

Scruffie · Post by **Scruffie** » 09 Mar 2010, 22:03

Yup that's exactly the difference, they pair up together.

telecaster · Post by **telecaster** » 10 Mar 2010, 04:17

Does anyone know if the v3205 chips can work in the old red aquapuss boards from Abfackeln?

ponq · Post by **ponq** » 10 Mar 2010, 08:58

voted (yesterday)

quarara · Post by **quarara** » 10 Mar 2010, 10:09

voted.
it would be great if those v3205's and v571's will reach 1k range.

theehman · Post by **theehman** » 14 Mar 2010, 00:56

Order form is ready.

https://spreadsheets.google.com/viewfor ... dmltblE6MA

cpm · Post by **cpm** » 15 Mar 2010, 00:16

i put the numbers in the sheet

anyway, i'd like to know before it closes (if it ever happens) since i might add some other parts

thanks!

osa · Post by **osa** » 23 Mar 2010, 13:41

Bump...
How's this progressing?
Thanks!

theehman · Post by **theehman** » 23 Mar 2010, 17:24

osa wrote:Bump...
How's this progressing?
Thanks!

So far, so good. I think I'll be putting the order together soon so everyone needs to get their orders in.

Check the spreadsheet to see if your order is correct. Some people didn't include their FSB username so their orders were removed. Anyone who put in more than one order had their orders combined.

Spreadsheet: https://spreadsheets.google.com/ccc?key ... tblE&hl=en

Order form: https://spreadsheets.google.com/viewfor ... dmltblE6MA

CRBMoA · Post by **CRBMoA** » 23 Mar 2010, 18:20

I believe I actually entered my info correctly this time. Let me know when you need money and where to send it, and Thank You for putting this together!!

ponq · Post by **ponq** » 24 Mar 2010, 08:27

I am about to put in my order.

Quick question: what happens if the total amount does not reach the minimum required amount for a part? Will the order for that part be dropped?

theehman · Post by **theehman** » 24 Mar 2010, 10:11

ponq wrote:I am about to put in my order.

Quick question: what happens if the total amount does not reach the minimum required amount for a part? Will the order for that part be dropped?

We'll order at least the 10 pc price. No worries there.

danielzink · Post by **danielzink** » 24 Mar 2010, 11:13

Could someone give me a quick and dirty difference between the 3005 and 3205's ? (soundwise)

Thanks, Dan

ponq · Post by **ponq** » 24 Mar 2010, 11:20

Maybe this helps:

abfackeln wrote:The MN3005 has a better signal to noise ratio than the MN3205 (75dB vs 67dB, according to the datasheets), and the 3005 can handle higher voltages (12v, 18v) for more headroom, wheras the 3205 can only take 9v.
I have two other delays with the 3205 in them, and while they sound good, the 3005 definitely sounds better (to my ears, anyway).

Can't find the post, but I think it was Madbean who said he couldn't really tell them apart in his AP build.

ymmv

CoolAudio Group Buy

What parts do we want from CoolAudio? Base your decision on the 10 piece price.