So, "it's not a power amplifier" because the input is switchable between XLR and RCA and/or it has a level control?It's quite curious that Amir didn't test this device like it does for the others: it's not a power amplifier...
... so the SINAD results don't correspond to reality if everything is compared in the same way, right ?
In view of Amir's usual requirements 'in normal times', he could not even have been 'recommended'![]()
Usage of PFFB and a PBTL power stage are not related, especially in the way you're implying.
A5x A7x Series Next-Gen PFFB Amplifier
TPA3251/TPA3255 Based Mono/Stereo Power Amplifier(s) with Post Filter Feedback Design
clearing clarification(as the title) at the early beginning,not sure what things confuse here.
Thank you for the near instant response. Wow!clearing clarification(as the title) at the early beginning,not sure what things confuse here.
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3e Audio TPA3251 TPA3255 Finished Amplifier with PFFB is coming!
Hi Amigos: It has been for around 2 years after we release TPA3251 and TPA3255 series amplifier DIY kits with post filter feedback design that improve the overall performance of the single chip itself. With many buyers(diyer) enjoyed our diy kits and having so many fun from their own diy...www.audiosciencereview.com
Actually, it was already clear……clearing clarification(as the title) at the early beginning,not sure what things confuse here.
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3e Audio TPA3251 TPA3255 Finished Amplifier with PFFB is coming!
Hi Amigos: It has been for around 2 years after we release TPA3251 and TPA3255 series amplifier DIY kits with post filter feedback design that improve the overall performance of the single chip itself. With many buyers(diyer) enjoyed our diy kits and having so many fun from their own diy...www.audiosciencereview.com
Why? Separate power supply should be the norm.If they ever learn how to build an amp without a power brick I might recommend it.
Yes.The chips are TI, aren't they? Is there a "reference" amp made by TI to showcase them?
From what I recall, it is a 56 volt jobbie....Hi Amir can you make sure the power supply provided for the A7 is the "standard" 48V/5A (see screenshot below) that should be shipped to consumers?
From what I recall, it is a 56 volt jobbie....
Yes somehow... This why I pointed the Topping PA5 and PA7 (dual TPA3255)Measures like a rebadged Topping PA5 for some reason.
Hello Amir, is there a chance you can still post the missing graph of THD+N vs power for various frequencies? Much appreciated!From what I recall, it is a 56 volt jobbie....
I was hoping to do that. But just now sliced my finger wide open and can barely type.....Hello Amir, is there a chance you can still post the missing graph of THD+N vs power for various frequencies? Much appreciated!
So those measurements might not be of help to the masses... @3eaudio could you send to Amir the correct power brick?From what I recall, it is a 56 volt jobbie....