RB-TA2022 ref design any good

Kjeldsen · 09:37 PM

I can make a good deal on a RB-TA2022 version 3.1 6 channel amp with 1000 watt audio SMPS for 100$. But is this design good, or is there anything I should be aware of.

Most important is that it's stable and noise free, and it should af good sound (in know it have good sound so it more about how stable that design is)

Kjeldsen · 12th August 2012, 09:36 PM

No one who knows anything? I thought it was a well known module.

Kjeldsen · 13th August 2012, 09:37 AM

no one! Bought it, and are now expecting it to arrive in a couple of days.

theAnonymous1 · 13th August 2012, 10:26 AM

It lacks the DC servo and output protection like the evaluation boards have.

Not sure what "stable" means to you.

Kjeldsen · 13th August 2012, 10:32 AM

Quote:

Originally Posted by theAnonymous1

Not sure what "stable" means to you.

That it's not going up in smoke. I know some designs don't like speaker outputs with no speaker connected (the it oscillates and blows). Some of the first tripath amps was also known to be unstable, and could blow up with at big bang.

Kjeldsen · 13th August 2012, 10:35 AM

Quote:

Originally Posted by theAnonymous1

It lacks the DC servo and output protection like the evaluation boards have.

Is that something to worry about? The SMPS PSU alone is worth what I have been paying, and I'm not interested in using a amplifier that is potentially dangerous to use.

theAnonymous1 · 13th August 2012, 10:45 AM

The DC servo is no big loss. Output protection can be added if needed.

BTW, you must have some cheap clone board with added smps.... Tripath never made boards with switching supplies.

Do you have a link to this board?

Kjeldsen · 11:05 AM

It's a seperate board (with Tripath logo) and something that looks like SMPS800 from connexelectronic (but I'll have a closer look when it arrives)

Kjeldsen · 13th August 2012, 11:21 AM

link

http://www.datasheetcatalog.org/data...th/mXqxyru.pdf

von Ah · 13th August 2012, 08:03 PM

Sounds like a great deal to me, if the SMPS is well-made. Great find, and please share your findings!

10th August 2012, 10:20 AM	#1
Kjeldsen diyAudio Member Join Date: Dec 2003 Location: Randers, Denmark	RB-TA2022 ref design any good I can make a good deal on a RB-TA2022 version 3.1 6 channel amp with 1000 watt audio SMPS for 100$. But is this design good, or is there anything I should be aware of. Most important is that it's stable and noise free, and it should af good sound (in know it have good sound so it more about how stable that design is) Last edited by Kjeldsen; 12th August 2012 at 09:37 PM.

13th August 2012, 10:58 AM	#8
Kjeldsen diyAudio Member Join Date: Dec 2003 Location: Randers, Denmark	It's a seperate board (with Tripath logo) and something that looks like SMPS800 from connexelectronic (but I'll have a closer look when it arrives) Last edited by Kjeldsen; 13th August 2012 at 11:05 AM.

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12th August 2012, 09:36 PM	#2
Kjeldsen diyAudio Member Join Date: Dec 2003 Location: Randers, Denmark	No one who knows anything? I thought it was a well known module.

13th August 2012, 09:37 AM	#3
Kjeldsen diyAudio Member Join Date: Dec 2003 Location: Randers, Denmark	no one! Bought it, and are now expecting it to arrive in a couple of days.

13th August 2012, 10:26 AM	#4
theAnonymous1 diyAudio Member Join Date: Feb 2004 Location: Anonymityville	It lacks the DC servo and output protection like the evaluation boards have. Not sure what "stable" means to you.

13th August 2012, 10:45 AM	#7
theAnonymous1 diyAudio Member Join Date: Feb 2004 Location: Anonymityville	The DC servo is no big loss. Output protection can be added if needed. BTW, you must have some cheap clone board with added smps.... Tripath never made boards with switching supplies. Do you have a link to this board?

13th August 2012, 11:21 AM	#9
Kjeldsen diyAudio Member Join Date: Dec 2003 Location: Randers, Denmark	link http://www.datasheetcatalog.org/data...th/mXqxyru.pdf

13th August 2012, 08:03 PM	#10
von Ah diyAudio Member Join Date: Feb 2008 Location: Maryland, USA	Sounds like a great deal to me, if the SMPS is well-made. Great find, and please share your findings!