TP RA3 Rackmount Amplifier Review

[renaudrenaud]

Take a look here... if you are looking for an alternative to the RA3 or PA5 with comparable measurements and better reliability )

3E Audio 260-2-29A : TPA3255 / HA3588 CoilCraft / PFFB Fully differential.

Hi amigos, I imagine some of you have had the opportunity to test the latest 3E Audio TPA3255 module with PFFB + HA3588 Coilcraft inductors I refer to version 260-2-29A dated July 2022 ) Designed with Fully differential signal chain from input to output. This module seems to be close behind...

www.audiosciencereview.com

I already build one amp with this card for a friend.

I just like the measurements and the form factor (and the price) of the RA3 (220€ where I live).

 

[Yoku-San]

Dear @amirm,

it is a little late to ask this, but could you maybe provide data of a measurement using the RCA input of the Amp?

Many thanks for your review!

 

[daniboun]

Can't really say there is better reliability than RA3, right?

I see you posted same in PA5 Mk2 thread but again - there is no data to suggest reliability issue with these latest releases by Topping

Let's talk about reliability... it's rather a bad start )

 

[Music1969]

Let's talk about reliability... it's rather a bad start )

View attachment 310512

In quality assurance, since when is sample size = 1 a measure of reliability ?

 

[daniboun]

In quality assurance, since when is sample size = 1 a measure of reliability ?

Just said it's rather a bad start )

 

[Music1969]

Just said it's rather a bad start )

I know first hand German luxury cars with 0 km faults...

Rare but they happen

Let's not make drama of sample size = 1 for any product...

 

[sarieri]

I know first hand German luxury cars with 0 km faults...

Rare but they happen

Let's not make drama of sample size = 1 for any product...

But hay, overheated module. Again? Come on

 

[Music1969]

But hay, overheated module. Again? Come on

Again? Where is that evidence? Come on...

 

[sarieri]

Again? Where is that evidence? Come on...

Fine, I will upload videos to demonstrate what happen by the end of today. Crazy how fanboys like these Topping amps.

 

[Music1969]

Yes some evidence is better than just stories.

 

[sarieri]

Here, the link for video demonstrating popping noise of RA3.

https://imgur.com/a/tqqgR1C

 

[sarieri]

And a tear down shows a bump on one of the module on amp board.

 

[sarieri]

Indeed, a sample size == 1 doesn’t bother me, unlike two broken LA90Ds in a row last time. What bothers me however, is that this same defect is found AGAIN on a revision of PA5.

 

[Music1969]

Here, the link for video demonstrating popping noise of RA3.

Thanks for this. Hopefully @JohnYang1997 can comment

 

[howard416]

Wow. I wanted to buy one but seems like they really just don’t want to fix their reputation on this. Hard pass. Thanks for the info.

 

[Sokel]

Here, the link for video demonstrating popping noise of RA3.

https://imgur.com/a/tqqgR1C

Could you please take this thing FAR from your speakers?
It's like watching a horror movie which the kill is about to happen.

When will they ever learn?

 

[sarieri]

Could you please take this thing FAR from your speakers?
It's like watching a horror movie which the kill is about to happen.

When will they ever learn?

I bet they don’t give a crap. I saw someone posting about designing a replacement module for PA5 about a month ago. Never thought that one day I actually need to look into this.

 

[renaudrenaud]

I bet they don’t give a crap. I saw someone posting about designing a replacement module for PA5 about a month ago. Never thought that one day I actually need to look into this.

Do you have a link for the replacement module?

 

[sarieri]

Do you have a link for the replacement module?

Topping PA5 fix - D01 Module Replacement for everyone

Ive been working on the PA5 for a while now after mine died suddently, like many others https://www.audiosciencereview.com/forum/index.php?threads/poll-for-topping-pa5-owners-only-please.33293/ Most of the PA5 units develop a crackling, hissing or just go a little silent or completely dead on...

www.audiosciencereview.com

 

[regan]

When will they ever learn?

Why would they since business is booming anyway