NEW Audio amplifier kits, modules and many others. - Page 4

Cristi · 27th December 2008, 03:39 PM

Just finished testing new version of TA2022 amp. can be found on this link:http://connexelectronic.com/product_...7cncvg2bn7qj31
for any questions, please ask me, and also before placing an order please contact me to get the shipping cost, since the software calculator doesn't always give the correct values. i try to fix this problem, and i also think to use some advanced solution, any advice will be welcome.

MartinQ · 28th December 2008, 05:53 PM

Reposting my questions about the TA2022 module:

Is this module bridgeable?
What are the power input requirements?
What is the max output at 2 / 4 / 8 ohm loads?
Do you have dimensions for the circuit with the heatsink? (H x W x D)

e_fortier · 28th December 2008, 06:33 PM

Hi Martin,

For your second a third questions just look at the available spec sheet

Eric

MartinQ · 28th December 2008, 09:24 PM

Quote:

Originally posted by e_fortier
Hi Martin,

For your second a third questions just look at the available spec sheet

Eric

Thanks for the tip Eric, but I don't see a link to the spec sheet on the Connex website. Do you have a link?

e_fortier · 28th December 2008, 11:46 PM

Here is the link

I'm actually listening to it right now.

TA2022 spec sheet

Eric

otter17 · 29th December 2008, 05:55 PM

Hallo,
i am following this here with great interest.

I am considering buying 2 Stereo Amps for my 2-Way System.

That way i could activate every single channel seperately.

If I decided the TA3020 was the one, which PSU would be the right one. I am not an expert, but I think Power Supply 6x10000uF 80V would match. What kind of toroidal transformer is needed?

Could anybody help me please. Thank you and a happy new year!

Cristi · 29th December 2008, 06:42 PM

as you assumed, PS10K80 (6x10000uF 80V) would be a good match for TA3020 amplifier. the psu board has 3x10mF capacitors for each rail, in total 6 pcs. 10mF at 80 V capacitors. on request the board can be equipped with even larger capacitors, 15 or 18mF each, giving huge energy reserve.
for the transformer, the power i suggest to be at least the amplifier power, which is maximum 300W per channel, at 4 ohms, voltage depending on the desired output power. for maximum power, need to supply the amplifier with +- 60V, which is about 43.5 V AC at minimum 7A. the transformer should have 2 identical windings, each with this voltage and current rating.

Happy New Year !!!

Cristi · 2nd January 2009, 05:39 AM

HAPPY NEW YEAR and ALL THE BEST WISHES !!!

Since few peoples asked me about the modules wheater or not they are assembled or kits, i need to mention that all of them are complete assembled and tested, user, doesn't have to solder any part on them. most of them contains SMD components which requires some skils and can be a chalange for some peoples, especially if they don't have the proper equipment to work with. also, by providing them assembled and tested, the user's can avoid some problems which can lead to components failure if some components were soldered wrong or overheated. also after completion every module is not powerd on directely at nominal voltage, i use a regulated variable supply which have also current limit, set to minimum. in this way if something went wrong in the assembly process can be discovered without smoke and fireworks. after everything is tested, i apply the nominal voltage, and i make the burn-in test, with loudspeakers and power resistors loads. i also test at maximum voltage +5-10% at the limit of overvoltage shut-down.
if some of you preffer to assembly the modules by yourself, i can provide the package with components and pcb separately, and you can enjoy the DIY assembly.

pulpx · 6th January 2009, 02:47 PM

Would the 4x10mF power supply be suitable for a chipamp (LM3886 or 3875)? If you have a schematic that would answer as well. Seems like a very good price for a psu with fast diodes and big caps.

ajbor · 7th January 2009, 01:31 AM

Hello
This is my first post here-
happy new year for all

Few days ago I have received LM4702 SAP15 from Connexelectronic!
Amplifier board looks cool, but there was nothing with, like manuals, schematics,...

On your web site are some datas, but , for example , I dont know, where is + and where is - voltage from supply?
I could track this on board, but this part is not so cool!
Probably lack of papers was caused by christmas das.
Where can I download this documents?

Thanks,
Robert

29th December 2008, 05:55 PM	#36
otter17 diyAudio Member Join Date: Dec 2008	very interesting Amps Hallo, i am following this here with great interest. I am considering buying 2 Stereo Amps for my 2-Way System. That way i could activate every single channel seperately. If I decided the TA3020 was the one, which PSU would be the right one. I am not an expert, but I think Power Supply 6x10000uF 80V would match. What kind of toroidal transformer is needed? Could anybody help me please. Thank you and a happy new year!

6th January 2009, 02:47 PM	#39
pulpx diyAudio Member Join Date: Dec 2008	Power Supply Would the 4x10mF power supply be suitable for a chipamp (LM3886 or 3875)? If you have a schematic that would answer as well. Seems like a very good price for a psu with fast diodes and big caps.

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27th December 2008, 03:39 PM	#31
Cristi diyAudio Member Join Date: Dec 2008 Location: Shenzhen	Just finished testing new version of TA2022 amp. can be found on this link:http://connexelectronic.com/product_...7cncvg2bn7qj31 for any questions, please ask me, and also before placing an order please contact me to get the shipping cost, since the software calculator doesn't always give the correct values. i try to fix this problem, and i also think to use some advanced solution, any advice will be welcome.

28th December 2008, 05:53 PM	#32
MartinQ diyAudio Member Join Date: Jul 2004 Location: Ontario, Canada	Reposting my questions about the TA2022 module: Is this module bridgeable? What are the power input requirements? What is the max output at 2 / 4 / 8 ohm loads? Do you have dimensions for the circuit with the heatsink? (H x W x D)

28th December 2008, 06:33 PM	#33
e_fortier diyAudio Member Join Date: May 2001 Location: Montreal	Hi Martin, For your second a third questions just look at the available spec sheet Eric

28th December 2008, 11:46 PM	#35
e_fortier diyAudio Member Join Date: May 2001 Location: Montreal	Here is the link I'm actually listening to it right now. TA2022 spec sheet Eric

29th December 2008, 06:42 PM	#37
Cristi diyAudio Member Join Date: Dec 2008 Location: Shenzhen	as you assumed, PS10K80 (6x10000uF 80V) would be a good match for TA3020 amplifier. the psu board has 3x10mF capacitors for each rail, in total 6 pcs. 10mF at 80 V capacitors. on request the board can be equipped with even larger capacitors, 15 or 18mF each, giving huge energy reserve. for the transformer, the power i suggest to be at least the amplifier power, which is maximum 300W per channel, at 4 ohms, voltage depending on the desired output power. for maximum power, need to supply the amplifier with +- 60V, which is about 43.5 V AC at minimum 7A. the transformer should have 2 identical windings, each with this voltage and current rating. Happy New Year !!!

2nd January 2009, 05:39 AM	#38
Cristi diyAudio Member Join Date: Dec 2008 Location: Shenzhen	HAPPY NEW YEAR and ALL THE BEST WISHES !!! Since few peoples asked me about the modules wheater or not they are assembled or kits, i need to mention that all of them are complete assembled and tested, user, doesn't have to solder any part on them. most of them contains SMD components which requires some skils and can be a chalange for some peoples, especially if they don't have the proper equipment to work with. also, by providing them assembled and tested, the user's can avoid some problems which can lead to components failure if some components were soldered wrong or overheated. also after completion every module is not powerd on directely at nominal voltage, i use a regulated variable supply which have also current limit, set to minimum. in this way if something went wrong in the assembly process can be discovered without smoke and fireworks. after everything is tested, i apply the nominal voltage, and i make the burn-in test, with loudspeakers and power resistors loads. i also test at maximum voltage +5-10% at the limit of overvoltage shut-down. if some of you preffer to assembly the modules by yourself, i can provide the package with components and pcb separately, and you can enjoy the DIY assembly.

7th January 2009, 01:31 AM	#40
ajbor diyAudio Member Join Date: Oct 2007	Hello This is my first post here- happy new year for all Few days ago I have received LM4702 SAP15 from Connexelectronic! Amplifier board looks cool, but there was nothing with, like manuals, schematics,... On your web site are some datas, but , for example , I dont know, where is + and where is - voltage from supply? I could track this on board, but this part is not so cool! Probably lack of papers was caused by christmas das. Where can I download this documents? Thanks, Robert

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