Hello Arjen,
Got the 2020s thank you.
About the 3020 I suppose one need to add a 2*30V up to 2*60V DC supply, not only transformer?
Are the inputs easy accessable as I want to remove the input caps for transformer input?
Got the 2020s thank you.
About the 3020 I suppose one need to add a 2*30V up to 2*60V DC supply, not only transformer?
Are the inputs easy accessable as I want to remove the input caps for transformer input?
117 Euro is around AUD$228 that is $20 short of the price of 2 x Hypex UcD180. It's over priced and under tested. 
col.
col.
TA3020
Hi there lars, hope your happy with them, ive been playing with the TA2020 just now, adding some bigger coils, 1.3mm wire, ill show that somewhere else.
The TA3020's inpu caps are just under the heatsink, this might make soldering the trannies to the PCB hard. i suggest you just short it, and connect the input transformer to the input connector.
Ill show it to morrow with more photo's
Greetings,
Arjen ( its still cold... )
Hi there lars, hope your happy with them, ive been playing with the TA2020 just now, adding some bigger coils, 1.3mm wire, ill show that somewhere else.
The TA3020's inpu caps are just under the heatsink, this might make soldering the trannies to the PCB hard. i suggest you just short it, and connect the input transformer to the input connector.
Ill show it to morrow with more photo's
Greetings,
Arjen ( its still cold... )
TA3020
Hi there Col,
Tue, defenetly undertested, aldoh the design is not much different from the Tripath Application notes and those are tested designs that work Very very well. anyways, this always comes down to personal taste and to measurements, if there is somone what wants to help me measure the preformance of this board, it will be rewarded by me and we will all know more.
I have how ever tested the amp, and i really do like it allot. but this is nothing more than a personal opinion.
If anyone could help out testing, i would really appriciate it, and where it comes to pricing, yes 117 Euro is allot, but its also allot of time and money that go's in to these projects, and it should be worth while to do so. I personally dont know many people that dont mind turning there living room in to a small factory, therfore i do thank god for giving me a girlfiend that does not complain about this :-D
Greetings from China,
Arjen
Hi there Col,
Tue, defenetly undertested, aldoh the design is not much different from the Tripath Application notes and those are tested designs that work Very very well. anyways, this always comes down to personal taste and to measurements, if there is somone what wants to help me measure the preformance of this board, it will be rewarded by me and we will all know more.
I have how ever tested the amp, and i really do like it allot. but this is nothing more than a personal opinion.
If anyone could help out testing, i would really appriciate it, and where it comes to pricing, yes 117 Euro is allot, but its also allot of time and money that go's in to these projects, and it should be worth while to do so. I personally dont know many people that dont mind turning there living room in to a small factory, therfore i do thank god for giving me a girlfiend that does not complain about this :-D
Greetings from China,
Arjen
Hi all,
the design I'm working on has ready made inductors which are fully shielded, the PCB has a full copper pour and as said a star ground right under the chip, but the option to go for full ground planes. It is a design done by several people, I'm just one of them and all I can say is I'm VERY impressed by the soundquality and neat lay-out.
The design is quite different from the Tripath evaluation boards.
Say Arjen, what BBM timing is your's set to?
the design I'm working on has ready made inductors which are fully shielded, the PCB has a full copper pour and as said a star ground right under the chip, but the option to go for full ground planes. It is a design done by several people, I'm just one of them and all I can say is I'm VERY impressed by the soundquality and neat lay-out.
The design is quite different from the Tripath evaluation boards.
Say Arjen, what BBM timing is your's set to?
TA3020
Hi there V-bro,
The PCB has multiple settings, 40-80-120 ns so its adjustable with a solder bridge.
Page 22 of the datasheet shows the table.
Im working now on some better coils, bought some shieldable core inductors and some good quality copper.
time to toy this weekend!
Greetings and have a nice weekend there in Amsterdam!
Arjen Helder
China
Hi there V-bro,
The PCB has multiple settings, 40-80-120 ns so its adjustable with a solder bridge.
Page 22 of the datasheet shows the table.
Im working now on some better coils, bought some shieldable core inductors and some good quality copper.
time to toy this weekend!
Greetings and have a nice weekend there in Amsterdam!
Arjen Helder
China
How can you know if its overpriced if you haven´t tried or tested it? It might sound better than the UcDs.
As I understand it you build amps with Ucd modules for others, is this the reason for your sour comment?
Please administrator move all threads concerning trading to Vendors Bazar.
I build amps for my friends. Not commercially. Maybe the amp isn't overpriced, just I was expecting it to be much cheaper than a pair of UcD180. Doesn't really matter anyway. I wish Arjen all the luck in his endevour 😀
col.
col.
Hi Col,
Sorry, maybe I overreacted
!
Anyway, I have seen test both in favour of UCD180 and Tripath3020 based amps, so probably its just a matter of taste.
I see no reason why a Truepath style should be cheaper than the UcDs as the first seems to sound at least as good.
Sorry, maybe I overreacted
!Anyway, I have seen test both in favour of UCD180 and Tripath3020 based amps, so probably its just a matter of taste.
I see no reason why a Truepath style should be cheaper than the UcDs as the first seems to sound at least as good.
TA3020
Hi there Guy's,
sorry if i annoy anyone with comercialized posts, its not my intention to annoy, but more to enjoy DIY audio and value electronics,
Its of no doubt money is made on modules that are sold, but in the end it really isnt that simple to make it, and the amount that is made is not in comparison with the time spend.
The time that go's in sourcing and QC, especially here in China where 90% of the trades doesn't want to trade if you want less than 1000 parts, all the fake and used Shite etc, is allot, and im lucky to speak the language and be able to test all components at the company i work for.
all that added up together, i make allot less on selling PCB's then i do with working for my boss per hour and all my cosumers can be thankfull to my Girlfriend that helps me do logistics and packaging in her free time or i would not be able to do this at all.
That beeing said, this thread is about the TA3020, and that is what i am trying to discuss here aswell, hopefully to improve the existing design from what i can learn here and ofcource to enjoy myself in the process.
Price and product things i will post on the market place, discussion about the board as it is, i will post here.
Greetings,
Arjen Helder
Shenzhen China
Hi there Guy's,
sorry if i annoy anyone with comercialized posts, its not my intention to annoy, but more to enjoy DIY audio and value electronics,
Its of no doubt money is made on modules that are sold, but in the end it really isnt that simple to make it, and the amount that is made is not in comparison with the time spend.
The time that go's in sourcing and QC, especially here in China where 90% of the trades doesn't want to trade if you want less than 1000 parts, all the fake and used Shite etc, is allot, and im lucky to speak the language and be able to test all components at the company i work for.
all that added up together, i make allot less on selling PCB's then i do with working for my boss per hour and all my cosumers can be thankfull to my Girlfriend that helps me do logistics and packaging in her free time or i would not be able to do this at all.
That beeing said, this thread is about the TA3020, and that is what i am trying to discuss here aswell, hopefully to improve the existing design from what i can learn here and ofcource to enjoy myself in the process.
Price and product things i will post on the market place, discussion about the board as it is, i will post here.
Greetings,
Arjen Helder
Shenzhen China
@V-bro
Do you have a ball-park price for your Truepath?
Is it assembled or does it come as a kit you need to solder yourself?
Do you have a ball-park price for your Truepath?
Is it assembled or does it come as a kit you need to solder yourself?
Hi,
I'm merely participating in the design of the amp, therefore I can't give cost estimates or date of release, nor can I tell where the amp will become available. This in order to prevent a frenzy of emails asking about it at the doors of the shop...
I can only speak about the design itself, nothing else.
I want to add that I'm not commercially involved in this myself, I have an excellent paying day time job and doing this purely as a hobby.
My estimate about the price? Depends very much on the eventual parts that are going to be used, but somewhere between 90 and 150 euro for a kit...
I'm merely participating in the design of the amp, therefore I can't give cost estimates or date of release, nor can I tell where the amp will become available. This in order to prevent a frenzy of emails asking about it at the doors of the shop...
I can only speak about the design itself, nothing else.
I want to add that I'm not commercially involved in this myself, I have an excellent paying day time job and doing this purely as a hobby.
My estimate about the price? Depends very much on the eventual parts that are going to be used, but somewhere between 90 and 150 euro for a kit...
Hello Arjen,
About your nicelooking 3020 board:
Is it to be fed directly from transformer AC or do I have to add rectifier-bridge and caps too?
About your nicelooking 3020 board:
Is it to be fed directly from transformer AC or do I have to add rectifier-bridge and caps too?
revintage said:
Looking at the cap size it is fed by DC and still needs rectifiers and bulk caps....
TA3020
Thanks there Bro, thats right. 🙂
it has caps on board, but needs more buffer after the rectifier. i didnt make a PCB for that yet, it might not be neccesary to do so, but ill decide that in a later stage.
Thanks there Bro, thats right. 🙂
it has caps on board, but needs more buffer after the rectifier. i didnt make a PCB for that yet, it might not be neccesary to do so, but ill decide that in a later stage.
Then it was as I thought. My reaction was about the tiny 3300uF.
No need for cap-board. Better to hardwire instead!
No need for cap-board. Better to hardwire instead!
As far as the comparison to the UCD180 - the UCD180 is 180 wpc @ 4 ohm, the TA3020 is 300 wpc @ 4ohm...
Wouldn't a more fair comparison should be against a UCD400, which is nearly twice the cost of the UCD180?
I have a UCD400 and love it. I also have a crappy implementation of 5 channels of TA3020 (planned to tweak it). The 5 x TA3020 I have sounds OK, but UCD400 bests it in every way.
But again, a better implemented TA3020 design may be worth looking into... as I believe it is priced quite well at 117 euro...
Wouldn't a more fair comparison should be against a UCD400, which is nearly twice the cost of the UCD180?
I have a UCD400 and love it. I also have a crappy implementation of 5 channels of TA3020 (planned to tweak it). The 5 x TA3020 I have sounds OK, but UCD400 bests it in every way.
But again, a better implemented TA3020 design may be worth looking into... as I believe it is priced quite well at 117 euro...
john65b said:
The TA3020 isn't by itself, it drives fets and the power depends on them, you can squeeze out even more than 500W/ch with the right fets...
Arjen's board is not even 300W/ch, he posted the rated power earlier. Neither is the design I'm working on... Truepath however is and it compares quite well with my friend's UCD400...
My preference is still the Truepath, but it's a very close call...
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