Kevin Gilmore's Dynahi boards group buy

If you are reading this thread, most likely you have followed the Dynahi thread over the last weeks.
The Dynahi is Kevin Gilmore's current top of the line dynamic headphone amp.

Here's the final schematics diagram:


Here's the boards:



Here's the final board files.
Here are some pictures of Gilmore's Dynahi in that thread.
This is Dynahi's part list.
Here's a rough estimate of the cost of parts.
Here's the posting indicating where to buy the power supplies.
Here's BCBill's posting with a link to alternative schematics, parts list, and BOM

And here's where to order the boards. Each amp needs 2 boards, one per channel.
Ordering more than 100 boards (with a 2 week fabrication time) we get a final fabrication cost <= $5.29 per board.

Since no other people has offered to do this so far, even though I have no buyer/seller feedback here I'd be glad to be the hub for this group buy. Here's more or less how I see this process (suggestions are welcome of course):

1) Interested Groupbuyers send me PMs with exact # of boards to buy, and PayPal email address.
2) Bill 1 time, July 19th: I send PayPal payment request for $5.00 x #boards to all groupbuyers.
3) Groupbuyers send their PayPal payments for Bill 1.
- Paypal payment should include shipping address, as well as your Headfi login name, to simplify sorting out who has paid, and update the record easily.
- Source of funds should NOT be a credit card. My PayPal account is Personal, not Business/Premier. By doing this we avoid PayPal fees as a bonus.
4) On July 26th, I place order on

http://www.pcbnet.com/ for the total # of paid boards.
- Order placed on 07/26/04 for 174 Boards.
- Final cost per board (w/o shipping): $4.20
5) UPDATE 08/06/04: Boards Received!!!!
- Click here to see more pictures of the boards
6) Bubblewrap each set of boards for each groupbuyer, and put each bundle in a small USPS priority mail box or envelope.
7) Ask in post office exact shipping cost of each package for the corresponding shipping address of each groupbuyer.
8) Bill 2 time: Send groupbuyers their exact shipping costs + adjustments pending from bill 1, through PayPal payment requests.

Bill#2 = (rate) + (0.11 + bubble wrap/174)*#boards - (your positive balance from bill#1)

Where rate == $3.85 for US destinations; $4-$5 / $7-$9 for international destinations (small / large envelopes)

9) Groupbuyers send payment for bill 2, and I mail boards as soon as payment arrives.
- UPDATE 08/13/2004: All boards shipped!
- UPDATE 08/31/2004: All boards received! (confirmed)
Your total cost will be the cost of the boards + the total shipping. Final shipping cost will be equal to A + B, where
A == Your fraction of shipping from board making company, pcbnet.com, to me.
B == Shipping of your boards from me to you. Btw my location is Pensacola, FL.


Here's the list of Dynahi board groupbuyers:

Headfier - Status
______________2 Boards:
andrzejpw - R (08/16)
Arzela - R (~08/18)
CBMC - R (08/16)
djwkjp - R (08/12)
fyleow - R (08/12)
hadron - R (~08/16)
Jack Head - R (~08/16)
jnewman - R (08/16)
philodox - R (08/17)
raiden - R (08/17)
randytsuch - R (08/14)
strohmie - R (~08/16)
TrevorNetwork - R (08/20)
Turing - R (~08/18)
zbuddah - R (~08/16)

______________3 Boards:
Woody - R (~08/16)

______________4 Boards:
ahmose - R (~08/16)
aos - R (08/18)
chillysalsa - R (08/17)
chris719 - R (~08/16)
drewd - R (08/12)
frozen - R (08/14)
jerry1130 - R (~08/16)
Jupiter - R (08/16)
MattN - R (08/13)
MisterX - R (08/13)
Pars - R (08/13)
PeterR - R (~08/16)
subsonic - R (~08/16)
Zemo - R (08/16)

______________5 Boards
BCBill - R(~08/31)

______________6 Boards
Pappucho - R (~08/16)
raif - R (08/12)
rlmacklin - R (08/13)
Vladco - R (~08/16)

______________8 Boards
akira - R (08/17)
ayt999 - R (08/12)
rsaavedra - R (08/06)

______________10 Boards
Smriti - R (~08/16)
thrice - R (08/12)

______________12 Boards
intlplby - R (08/12)


Status legend:

Z = Boards shipped
R = Boards received

Total requested: 174 boards
Total paid Bill1: 174
Total paid Bill2: 174
Total shipped : 174
Total received (confirmed): 174

Thanks for the comments MisterX, after your feedback I made some changes in the procedure that should make everything easier. Suggestions are truly welcome and encouraged.

Thanks very much Kevin! 25+ boards would allow us to lower the cost of the boards quite a bit then, hopefully we can get there soon.

Everyone, for now I'll keep sending the PayPal money requests just with the $15 amount per board, but remember that is just sort of a reminder. Final price will be precise once we agree on a deadline for ordering and know how many total boards we will order.

Received two payments already, but one of them used a credit card. My PayPal account is a "Personal" one, I would need to upgrade to a "Business" account in order to accept payments from credit cards. Unless the final amount exceeds $1K (can't receive more than that through a personal account), I'd rather not upgrade to a business account. Therefore if it's ok with everybody, please don't use a credit card as your PayPal source of funds. If too many would rather use credit cards, then I will upgrade, but then anyone paying with a credit card should include the PayPal fees in cost B.

By the way, if you pay now the full temptative $15 per board, and then we exceed 25 or 50 total boards to order, then we'll fix the numbers of course. If you overpaid even including your final shipping, I'll reimburse the proper amount in the end.

To make things easier, probably you should send you payment only after we know exactly what # of boards we will order in the end, and what our exact cost per board will be.

Kevin provided this rough estimate: http://www5.head-fi.org/forums/showp...9&postcount=90

Do you also mean while total < 25 we shouldn't count you in?

Remember to send me a PM with your PayPal address.