Mini3 pcb on sale now.

[heady 0]

Hi guys,

The mini3 amp designed by amb is now available for sale. Please go to Amb's audio shop.

 

Read about the mini3 amp here: http://www.amb.org/audio/mini3/

[aegisofrime 0]

I wonder if this or the LISA III would be better?

[zhang_junyang 0]

I dun think the LISA III should be compared directly with the Mini3. One is a transportable big amp while another is a small credit card sized amp. The difference in price is even larger. Dun noe abt the SQ as haven heard them before. But I place my order with amb oredie. Hope can receive the parts by the end of the month.

 

 

[DemonicAngelz 0]

If anyone is going to order these, could you PM me pls

[aaron-xp 0]

If any one is getting any boards, could you PM please? Am interested in building one myself.

[ezzo 0]

Me too, if anyone is starting a grp buy.

[mouz 0]

yup add me in too, if there's a grp buy too . Thinking of trying out making my first headphone amp for fun

[heady 0]

Hmmm.... I have never done a group buy before but I don't mind helping if you guys understand that :

 

1. When the group buy closes, I will compute the cost to each person and I need your payment before I place the order. (Via ATM transfer to POSB account.)

2. you have to come and collect from me at either Tampines or Simei MRT when the pcb arrives.

3. please don't ask me for help when you have problems with the pcb during the build.

4. In order not to attract GST, the group buy must not be too big.

5. The shipping cost borne equally among the buyers and not orders.

 

How about that? Let's give this a week to collect orders. Please put your name and quantity of each item you need in a post here. Please also go the the website to see what items you need with the pcb.

 

BTW - I am not in the group buy as I already ordered my pcbs a long time ago and waiting for the additional stuff before AMB ships to me.

Edited August 21, 2007 by heady

[DemonicAngelz 0]

Thanks heady. I'll take one.

[aaron-xp 0]

Thanks to heady for this great group buy.

 

Here's a list to help out:

 

"Needed" items

 

1 each

Mini³ headphone amplifier printed circuit board and accessories

Texas Instruments TLE2426CLP virtual ground rail splitter chip (TO-92)

BZX55C12 12V 500mW low noise zener diode (DO-35)

DC power jack, 2.5mm center pin, PCB-mount, Kycon KLDX-0202-B (or similar)

Alps RK0971221Z05 miniature stereo potentiometer with SPST switch, 10KΩ

 

2 each

3.5mm stereo mini phone jack, isolated, PCB-mount, CUI SJ1-3533NG

 

Choices available:

Either

 

Option 1 ("high performance")

Analog Devices AD8397ARDZ rail-to-rail high output current dual opamp (SOIC-8 with E-pad)

+

TI/Burr-Brown OPA690ID wideband high output current opamp (SOIC-8)

 

Option 2 ("Extended Run time)

National Semiconductor LMH6642MA rail-to-rail low-power opamp (SOIC-8)

+

National Semiconductor LMH6643MA rail-to-rail low-power dual opamp (SOIC-8)

 

OPTION 1 COST (with board and other stuff) --> USD24.45 excluding shipping

OPTION 2 COST (with board and other stuff) --> USD20.65 excluding shipping

 

All this is to the best of my knowledge/calculator skills.

 

EDIT: Formatting stuff

Edited August 21, 2007 by aaron-xp

[heady 0]

Err.... mod? Are we allowed to have group buy here or should I put an entry in the classifieds? Thanks.

 

demonicAngelz - you need to specify one of what, please check the list aaronxp has kindly posted.

 

aaronxp - thanks for the list, you beat me to it.

Edited August 21, 2007 by heady