3e Audio TPA3251 TPA3255 Finished Amplifier with PFFB is coming!

[SMen]

@3eaudio I really am curious as to how you can give the A5 audio performance 5 stars, and the A7 4 stars - I am not seeing how this could be the case when looking at the measurements. I've filled out your form for both waiting on the pricing.
One other question I have is why you would make the gain different for these - I could imagine some users (not me) bi-amping with these.
Just curious

 

[3eaudio]

Q&A sections:

1. it is 50Kohm A type,@xschop
2. volume bypass work for all versions(models)
3. amp will power on from OFF state when AC power provided(the idea here is to eliminate user manual press the power key again if he want to use it, either it will auto off if just leave there don't use it ) ,auto audio sense on off is for standby state and On state,sorry for the confuse,hope this is clear for you @Inertiaman
4. Ali is the only one channel currently, we will try on Amazon but still need some time.
5. even with the same Gain TPA3251 is better than 3255 this is the initial performance of the chip itself, lower gain also for target the best SINAD,your are right for bi-amp user kindly better use the same model. @SMen

 

[amarsicola]

@3eaudio are you considering Audiophonics for distribution in Europe?

 

[Piotr]

I hope they will.

Topping, SMSL, and Fosi are all available on Amazon Poland (amazon.pl)—hopefully, 3eaudio will be as well.

 

[V.b.]

Is the TPA325x still on the backside of the board or did you move it up with a heatsink, as it appears to be in the images, and why?

 

[Sig.Rossi]

Amazon in Europe (EU) would be great.

 

[Inertiaman]

What is the "se" designation supposed to convey? Special edition? I had originally thought it meant single-ended, but the "se" versions still include balanced inputs so that's obviously not the meaning.

And while I'm on this topic . . . it seems to me that a majority of buyers who want/need XLR/TRS inputs are very likely to also want the marginally higher performance of the non-SE versions. If that assumption is valid, and 95% of the SE buyers won't be using the balanced inputs, why not further cost reduce the SE versions by eliminating the balanced circuitry and jacks?? Doing so would also solve the "what does SE stand for?" dilemma

 

[Ropeburn]

What is the "se" designation supposed to convey? Special edition? I had originally thought it meant single-ended, but the "se" versions still include balanced inputs so that's obviously not the meaning.

And while I'm on this topic . . . it seems to me that a majority of buyers who want/need XLR/TRS inputs are very likely to also want the marginally higher performance of the non-SE versions. If that assumption is valid, and 95% of the SE buyers won't be using the balanced inputs, why not further cost reduce the SE versions by eliminating the balanced circuitry and jacks?? Doing so would also solve the "what does SE stand for?" dilemma

"SE" usually stands for "second edition", a cheaper version of a regular "first edition" that comes out a year or two later when technology already progressed further.

So yes, it seems a bit inappropriate for a family of devices that all come out at the same time. It's just marketing speak, we shouldn't think too much of it.

 

[SMen]

What is the "se" designation supposed to convey? Special edition? I had originally thought it meant single-ended, but the "se" versions still include balanced inputs so that's obviously not the meaning.

And while I'm on this topic . . . it seems to me that a majority of buyers who want/need XLR/TRS inputs are very likely to also want the marginally higher performance of the non-SE versions. If that assumption is valid, and 95% of the SE buyers won't be using the balanced inputs, why not further cost reduce the SE versions by eliminating the balanced circuitry and jacks?? Doing so would also solve the "what does SE stand for?" dilemma

It's about the number of 325x chips - so it might be a translation thing ("single chip" vs "single ended") - but the SE's use one chip in BTL mode, and the more expensive ones two in PBTL.

Post edit - maybe the more expensive ones should have had the suffix 'P' for parallel instead!

 

[harkpabst]

Since mass production has already started according to 3e Audio all this could only be input for the next generation of devices.

The se might just have the same meaning as the SE in Apple's iPhone (and everyone knows what that means).

In case you don't, here are two or three more suggestions what SE might stand for:

SE

What does SE stand for?

acronyms.thefreedictionary.com

 

[3eaudio]

@SMen @harkpabst right(how can you understand so close to us，LOL)

1. it is special edition but not meaning it is better than others but only a model only(for user)
2. we initially don't include SE version(lower cost for entry level) but providing more options to user does make sense.(yes people do care their money)
3. we did tried something like A7Max,Plus,Pro,etc for PBTL config, but naming a A7Max Mono version will be a very long name....

 

[Ropeburn]

@SMen @harkpabst right(how can you understand so close to us，LOL)

1. it is special edition but not meaning it is better than others but only a model only(for user)
2. we initially don't include SE version(lower cost for entry level) but providing more options to user does make sense.(yes people do care their money)
3. we did tried something like A7Max,Plus,Pro,etc for PBTL config, but naming a A7Max Mono version will be a very long name....

Super Street Fighter II Turbo A7 Pro Ultra Deluxe SE: PBTL Championship Edition

 

[PlasticDoc]

Is the TPA325x still on the backside of the board or did you move it up with a heatsink, as it appears to be in the images, and why?

Let's hope 3e Audio hasn't changed the heat dissipation capabilities of the previous design, because that would be a serious "No, No!"

 

[harkpabst]

Let's hope 3e Audio hasn't changed the heat dissipation capabilities of the previous design, because that would be a serious "No, No!"

Since these boards are not DIY products I'll be totally happ if heat management just works well with their own case work.

And I'm positive they succeed in this area as well.

 

[xschop]

@3eaudio. Thank you for the reply. Will the dual chip 3255 board be larger or same size as the single chip 3255? Thanks again.

 

[harkpabst]

I'm getting more and more excited every day ...

 

[Piotr]

Guys, there's already a proper implementation available with a fully integrated power supply. For those who are feeling impatient...

AUDIOPHONICS AP300-S2503E Power Amplifier 3E AUDIO 260-2-29A PFFB

The Audiophonics AP300-S2503E is a stereo power amplifier featuring a 3e Audio PFFB amplifier module. This enables it to develop 2x250W of power under 4Ω while delivering exceptional sound quality, combining precision and dynamics.

www.audiophonics.fr

 

[harkpabst]

Guys, there's already a proper implementation available with a fully integrated power supply. For those who are feeling impatient...

AUDIOPHONICS AP300-S2503E Power Amplifier 3E AUDIO 260-2-29A PFFB

The Audiophonics AP300-S2503E is a stereo power amplifier featuring a 3e Audio PFFB amplifier module. This enables it to develop 2x250W of power under 4Ω while delivering exceptional sound quality, combining precision and dynamics.

www.audiophonics.fr

No RCA inputs.
Different price point.
No TPA3252 TPA3251 version available.

 

[Piotr]

It's TPA3255; is TPA3252 better?

and XLRs are nicer agree both should be present at this price point

 

[SMen]

It's TPA3255; is TPA3252 better?

and XLRs are nicer agree both should be present at this price point

Also BTL not PBTL ... I think @harkpabst refers to the TPA3251.
I think the PBTL 3251 is the interesting one for me to see if, as according to 3e the 3251 is better.