Y148 AMP MODULE - Page 2

juanito · 15th November 2012, 05:14 AM

Have you seen this:
eBay: YAMAHA YDA148 2 X 30W @ 4ohm Class D Amp TA2024 killer

Peter Pan · 15th November 2012, 02:18 PM

Thanks for posting. To me that ebay item is BS. Kind of like those "1000 watt quad channel" car stereo amps you find in a flea market, that when taken apart reveals a single 20 watt amp chip, with all 4 inputs and outputs joined. The chip is not rated by the manufacturer for that power rating, so its an exaggeration . Who wants to buy from anyone that lies about technical specs.

Plus, for the small convenience you get for having terminal screws over solder connections, is not worth paying 3X more. this link still has the best deal I've seen on a YDA148 based amp, under $10!

Y148 Audio Amplifier Module on Geminideal.com

juanito · 15th November 2012, 02:33 PM

They are the same specs. Just wondering how good or bad is this amp.
The board I posted I found out yesterday and seems much like this one Goodfortune/ºÃÔËÀ´R7¹¦·Å»ú YDA148 30W*2 ·¢ÉÕ¹¦·Å°å-µçÄÔÓ²¼þ/ÖÜ±ß/ÍøÂçÉè±¸-µçÄÔ¶àÃ½ÌåÒôÏä | Íø¹º-ÅÄÅÄÍø which is also at dx electronics.

Bill poster · 08:35 AM

Just ordered this amp from deal extreme, plan to make a desk top mini MLTL with small FR's

danzz · 27th January 2013, 06:28 PM

Quote:

Originally Posted by Bill poster

Just ordered this amp from deal extreme, plan to make a desk top mini MLTL with small FR's

A little mod I made to this amp, with a great improvement Its to change the input cap with a 4700uf/25v, in my case with a Panasonic FC series that I had around...

Bill poster · 28th January 2013, 12:12 AM

Hey thanks for this tip, I will definitely do this. What's caps are the best to use? Are there any other weak components that cd be upgraded at the same time

danzz · 28th January 2013, 08:31 AM

I also changed the small aluminum caps with some nichicons same value from the told series, but not much improvement, a little more detail n highs, also maybe changing the inductors with some wurth, but this haven't try yet, someday I might... But changing the 2200uf CAP for a 4700uf one made the biggest improvement..

Bill poster · 09:36 AM

Ok I will just try the one mod for now, how about a Mundorf M-lytic 4700uf 50v?

EDIT - bit expensive .. will go for a Nichicon http://www.hificollective.co.uk/comp...chicon_fg.html

is 16V ok?

danzz · 28th January 2013, 09:31 AM

Quote:

Originally Posted by Bill poster

Ok I will just try the one mod for now, how about a Mundorf M-lytic 4700uf 50v?

EDIT - bit expensive .. will go for a Nichicon

Yeah, a bit expensive... I used a Panasonic from the FC series and made the Job, and Its cheaper... I got it from here site for me the cheapest with the shipping included as they are in Spain... Dont know to UK, but you can always check...

Bill poster · 09:43 AM

Hifi collective in the UK seems good

, how important is cap voltage? sorry for the questions

24th January 2013, 08:32 AM	#14
Bill poster diyAudio Member Join Date: Jun 2008 Location: London/Bangkok	Just ordered this amp from deal extreme, plan to make a desk top mini MLTL with small FR's Last edited by Bill poster; 24th January 2013 at 08:35 AM.

28th January 2013, 09:16 AM	#18
Bill poster diyAudio Member Join Date: Jun 2008 Location: London/Bangkok	Ok I will just try the one mod for now, how about a Mundorf M-lytic 4700uf 50v? EDIT - bit expensive .. will go for a Nichicon http://www.hificollective.co.uk/comp...chicon_fg.html is 16V ok? Last edited by Bill poster; 28th January 2013 at 09:36 AM.

28th January 2013, 09:37 AM	#20
Bill poster diyAudio Member Join Date: Jun 2008 Location: London/Bangkok	Hifi collective in the UK seems good , how important is cap voltage? sorry for the questions Last edited by Bill poster; 28th January 2013 at 09:43 AM.

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15th November 2012, 05:14 AM	#11
juanito diyAudio Member Join Date: Nov 2006	Have you seen this: eBay: YAMAHA YDA148 2 X 30W @ 4ohm Class D Amp TA2024 killer

15th November 2012, 02:18 PM	#12
Peter Pan diyAudio Member Join Date: Feb 2010 Location: Tampa, Florida	Thanks for posting. To me that ebay item is BS. Kind of like those "1000 watt quad channel" car stereo amps you find in a flea market, that when taken apart reveals a single 20 watt amp chip, with all 4 inputs and outputs joined. The chip is not rated by the manufacturer for that power rating, so its an exaggeration . Who wants to buy from anyone that lies about technical specs. Plus, for the small convenience you get for having terminal screws over solder connections, is not worth paying 3X more. this link still has the best deal I've seen on a YDA148 based amp, under $10! Y148 Audio Amplifier Module on Geminideal.com

15th November 2012, 02:33 PM	#13
juanito diyAudio Member Join Date: Nov 2006	They are the same specs. Just wondering how good or bad is this amp. The board I posted I found out yesterday and seems much like this one Goodfortune/ºÃÔËÀ´R7¹¦·Å»ú YDA148 30W*2 ·¢ÉÕ¹¦·Å°å-µçÄÔÓ²¼þ/ÖÜ±ß/ÍøÂçÉè±¸-µçÄÔ¶àÃ½ÌåÒôÏä \| Íø¹º-ÅÄÅÄÍø which is also at dx electronics.

28th January 2013, 12:12 AM	#16
Bill poster diyAudio Member Join Date: Jun 2008 Location: London/Bangkok	Hey thanks for this tip, I will definitely do this. What's caps are the best to use? Are there any other weak components that cd be upgraded at the same time

28th January 2013, 08:31 AM	#17
danzz diyAudio Member Join Date: Mar 2012	I also changed the small aluminum caps with some nichicons same value from the told series, but not much improvement, a little more detail n highs, also maybe changing the inductors with some wurth, but this haven't try yet, someday I might... But changing the 2200uf CAP for a 4700uf one made the biggest improvement..

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