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Class D Switching Power Amplifiers and Power D/A conversion

TA2022 vs 7498E digital T-amps
TA2022 vs 7498E digital T-amps
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Old 18th November 2014, 07:13 PM   #11
doctormord is offline doctormord  Germany
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Well then, this doesn't mean, that the PSU is bad as all, this also implies a "not so well designed" amp board.

10n to GND would help anyway.
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Old 18th November 2014, 10:23 PM   #12
Wieger is offline Wieger  Germany
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Default PSU

So basically you are saying that the amp might not be robust enough against 'dirty' power? Not so nice that they sell the Amp + PSU together. One would expect that they have tested the combination.

Anyway.. with the MeanWell PSU it works well.
Cannot try the 10n solution any longer.. but would be happy to hear what others have done to solve this issue.

And with this PSU the amp also worked fine (no noise):
http://www.ebay.de/itm/Sino-American-AC-Adapter-A42455G-Class-2-Transformer-24V-0-55A-13-2VA-/141367096711
but is a totally under powered.
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Old 19th November 2014, 10:30 AM   #13
doctormord is offline doctormord  Germany
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Exactly. To investigate this any further, a scope and some testing knowledge is needed.

Regards,

doc
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Old 18th December 2014, 06:24 PM   #14
James Freeman is offline James Freeman
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BUMP

I just ordered the Indeed TDA7498E.
Anyone have a more in depth review or measurements?

Hope its better than my Lepai TA2020A+ which only gives: 6W into 8ohm 1% at 1kHz (12V PSU).
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Old 26th August 2016, 07:41 PM   #15
taloyd is offline taloyd  United States
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Quote:
Originally Posted by James Freeman View Post
BUMP
I just ordered the Indeed TDA7498E.
Anyone have a more in depth review or measurements?
James,

How do you like the amplifier? (Yes, I realize it's a 2 year old thread - that doesn't make it any less relevant.)

Cheers,
Tal
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Old 15th April 2018, 01:38 PM   #16
jencelo is offline jencelo  United States
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Quote:
Originally Posted by zcables View Post
I own a balanced amp based on the TA2022 chip (it used two of them) to output a max of 200w at 4ohms. It's a great sounding amp, and has all the Tripath sound quality with much more power than the standard chip.
Which amp is that?
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Old 15th April 2018, 02:57 PM   #17
zcables is offline zcables  United States
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It was the PopPulse T180
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Old 15th April 2018, 04:18 PM   #18
jencelo is offline jencelo  United States
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Quote:
Originally Posted by zcables View Post
It was the PopPulse T180
Thanks for the reply. What did you get instead? I am desperately looking to buy a TA2022 based amp (bridged chip) because my TP60 (again TA2022 based amp) although sounds very good (especially vocals/midrange) cannot drive my 6 ohms 86db speakers well enough at higher volume levels. Not that I listen to music at crazy volume levels, but sometimes you want to have that reserve power
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Old 25th April 2018, 05:04 AM   #19
Sk8Ter is offline Sk8Ter  United States
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Anyone see anything g wrong with the 2018 version TDA7498E MKII ?
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Old 25th April 2018, 05:07 AM   #20
Sk8Ter is offline Sk8Ter  United States
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Oops here is the link

NEW2018 Indeed Class D Amp TDA7498E MKII 160WX2 Stereo Amplifier+36V5A adapter S | eBay
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