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Class D Switching Power Amplifiers and Power D/A conversion

Hypex/Purifi vs Chip Amps.
Hypex/Purifi vs Chip Amps.
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Old 3rd May 2021, 05:25 PM   #1
ALAN123 is offline ALAN123  United Kingdom
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Default Hypex/Purifi vs Chip Amps.

I remember the hype when Tripath chip amps were released and wondering how do the new Hypex and Purifi amps compare to the best high power affordable if not much cheaper chip amps such as Tripath and Texas Instruments. ?
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Old 4th May 2021, 05:16 AM   #2
ionutzxpo is offline ionutzxpo  Romania
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It's like comparing gold (Hypex and Purifi) with copper (Tripath and texas)
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Old 4th May 2021, 10:46 AM   #3
ALAN123 is offline ALAN123  United Kingdom
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Smile Purifi vs Naim

With the price difference this must be true and blow the older Tripath amps out the water I hope.

Reason I ask is I'm waiting on a pair of Mono block Purifi amps from Nord Acoustics having had T amps, budget tube amps and more recently a Naim 5i so interesting to hear how a Purifi amp compares to Naim. I really dont know what to expect.
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Old 4th May 2021, 05:46 PM   #4
starkeyg is offline starkeyg
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Well, a lot of class D amps sound pretty good now.

But if you want top of class grade, it does cost more. You are the only one who can choose depending on your budget and hearing acumen. Purfi (close to the very best if not the very best available currently) and Ncor both are darn good for the money, compare well to some very expensive Class A amps that cost a fortune and eat energy like it costs nothing and doesn't harm the environment. IMHO.

What is good enough?
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Old 4th May 2021, 06:04 PM   #5
ALAN123 is offline ALAN123  United Kingdom
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There can never be a 'good enough' otherwise nothing would evolve. But what can come after the likes of Purifi now, what can be better than the specs these modules already achieve.

Is the future going to be advancements and more use of room correction devices that make the most of these hi end yet affordable amplifiers.
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Old 4th May 2021, 07:39 PM   #6
invaderzim is offline invaderzim  United States
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real time room correction that continuously monitors the sound and adjusts; also tracks your position in the room and adjusts the output to best suit that specific spot.
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Old Yesterday, 07:45 AM   #7
unexperienced is offline unexperienced
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Hi!

For months, I've been comparing the NAD M22 (Ncore NC400) to two chip-based amp options at home:

1) TAS5624 It was a Quloos QA690 404 Not Found
2) TPA3255 Diy based on 3e Audio-Mono modules TPA3255-1CH-480W | 3e Audio

Both variants lost out in comparison with the NAD M22.

I was interested, and I did it on purpose to see for myself. I haven't dealt with Purify, but I think it's only better than the NC400. Of these two chipamps, I really liked the QA690

Last edited by unexperienced; Yesterday at 08:00 AM.
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Old Yesterday, 10:43 AM   #8
analog_sa is offline analog_sa  Europe
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Hypex/Purifi vs Chip Amps.
Quote:
Originally Posted by unexperienced View Post

Both variants lost out in comparison with the NAD M22.

Sensible comparisons are not easy. At very least the amplifier modules should share a very similar power supply, electrical interfaces and mechanical construction. Ideally, input buffers too. And be tested within the same power range.

Comparing complete amplifiers does not bring a lot of insight.
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Old Yesterday, 12:20 PM   #9
drMordor is offline drMordor  Russian Federation
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Hypex/Purifi vs Chip Amps.
Quote:
Originally Posted by unexperienced View Post

1) TAS5624 It was a Quloos QA690 404 Not Found
2) TPA3255 Diy based on 3e Audio-Mono modules TPA3255-1CH-480W | 3e Audio

Good amplifiers, but not the best.
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Old Yesterday, 05:26 PM   #10
kartino is offline kartino  Indonesia
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TPA should be by default made as post filter feedback.
I don't understand why prefilter only class D is still be used. It has no beauty sound at all.
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