Group buy/Interest list - TDA1541A Core board.

Please vote for your prefered surface finish

  • HASL - Hot air soldered leveling (cheaper option)

    Votes: 6 12.2%
  • ENIG - Electroless nickle/immersion gold (slightly more expensive but higher quality)

    Votes: 43 87.8%

  • Total voters
    49
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1

Total = 44
 
Last edited:
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2

Total = 46
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2

Total = 48
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
tubesguy x 1


Total = 49
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
tubesguy x 1
audiorogert x 2

Total = 51
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
tubesguy x 1
audiorogert x 2
dookie182 x2

Total = 53
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
tubesguy x 1
audiorogert x 2
dookie182 x1

Total = 52
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
tubesguy x 1
audiorogert x 2
dookie182 x1
noizas x 4

Total = 56
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
tubesguy x 1
audiorogert x 2
dookie182 x1
noizas x 4
sandor x 2

Total = 58
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
audiorogert x 2
dookie182 x1
noizas x 4
sandor x 2

Total = 57
 
Distinction-1541

Thanks to everyone that has shown an interest in the board now named "Distinction-1541"

I have been testing the first revision of the board for over a week now and I am very happy with the results. There are just a few things that i have amended for the final run - a few space constraints and also the addition of the DEM circuit shared by the honorable John Brown which I have tested and gives a significant improvement in sound quality. Thank you Mr John Brown.

Videos made for comparison:
http://goo.gl/7iVW3x Without DEM mod
http://goo.gl/YRgsjd With DEM mod

When I am totally satisfied with the final design I will ask the members to deposit the money into my PayPal account. After 1 week of waiting for payments i will order based on the amount of members that have paid.

Based on the current number of members wishing to purchase the board - the total price will be $17AUD which includes PCB (Electroless nickle/immersion gold, 1.2 mm final thickness for 50ohm ufl impedance matching), Paypal fees, and postage to anywhere in the world, and my time in handling for postage and design.

I hope this cost is not unreasonable, as i have tried to make it fair and cost effective for everyone.

Thanks to all the members that have made this possible.

A special thanks to jameshillj for being the "trusted ears" that have helped me continue working and "developing" the 1541 board. Thanks mate!

distinction
dis·tinc·tion [dih-stingk-shuhn]
noun
1. a marking off or distinguishing as different: His distinction of sounds is excellent.
2. the recognizing or noting of differences; discrimination: to make a distinction between right and wrong.
3. a discrimination made between things as different; special regard or favoritism: Death comes to all without distinction.
4. condition of being different; difference: There is a distinction between what he says and what he does.
5. a distinguishing quality or characteristic: It has the distinction of being the oldest house in the town.
 

Attachments

  • update1541A(2).jpg
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Last edited:
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 1
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
audiorogert x 2
dookie182 x1
noizas x 4
sandor x 2
vanwykca x 2

Total = 59
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 2
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
audiorogert x 2
dookie182 x1
noizas x 4
sandor x 2
vanwykca x 2

Total = 60
 
Update of list

CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 2
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
audiorogert x 2
dookie182 x1
noizas x 6
sandor x 2
vanwykca x 2

Total = 62
 
Update of list
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 2
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 1
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
audiorogert x 2
dookie182 x1
noizas x 6
sandor x 2
vanwykca x 2
walangalam x 1

Total = 63
 
Bravo Ryan to success to let the costs low !

As it's a collobarative work with some fellows spend time also and some not but gave good inputs as well, what do you think about adding 1 US dollar e.g. as a contribution to DIYAUDIO ?

Hi Eldam,

The DIYAudio web site definitely deserves some kind of recognition, so yes if i do actually make a dollar from this group buy i will consider making an undisclosed donation to show my appreciation. :)
 
CFT x1
Ceglar x2
Pet-240 x 2
Skippyboy X 1
Eldam x 1
AudioLapDance x 2
badrisuper x 1
Audiohifi x 1
Palmito x 2
peterma x 2
mravinsky x 1
JimS X 2
neoinc x 1
crowlie x 2
SPWONG x 1
Aronier x 2
andrea_mori x 2
ekidnah09 x 1
BDL x 2
RTD x 2
Luke X 2
savvas X 2
Jaffrie X 2
cjunkk x 1
flyboi X 2
wlowes X 1
bkdog x 1
clivem x 2
Malvin x 1
northernsky x 1
RonR x 2
kazap x 2
audiorogert x 2
dookie182 x1
noizas x 6
sandor x 2
vanwykca x 2
walangalam x 1

Total = 64
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.