TPA3255 - all about DIY, Discussion, Design etc

[SinGun]

A German friend of mine just told me that the ICEpower125ASX2 sounds galaxies better than Purifi. He said the Purifi is plain bad, cos sterile & cold & emotionless reproduction.

 

[SinGun]

SMSL M400 review:
SMSL M400 Balanced USB MQA DAC Review | Audio Science Review (ASR) Forum

The measured performance is nothing short of world class. USB output quality is near to perfection. That is importante mucho mas senior.

 

[daniboun]

I will be able to add another opinion shortly. My Purifi's run the neurochrome buffer / hypex HxR's.

Should be fine, but this only makes sens if you have a high end TPA3255 module... not a "chinese" one with bad caps etc...

A good TPA3255 amp makes all the difference. When I mean a good one = DrMordor / XRK Audio / 360 Customs / Jlester I dont include 3E Audio here.

 

[SinGun]

True, my Chinese TPA-3255 was on the edge of unbearable to put it diplomatically. After the mods it sounds better than 300B monoblocks, Accuphase, Sansui, Marantz, Sony, KT-88 Push-Pull etc.

 

[daniboun]

True, my Chinese TPA-3255 was on the edge of unbearable to put it diplomatically. After the mods it sounds better than 300B monoblocks, Accuphase, Sansui, Marantz, Sony, KT-88 Push-Pull etc.

As we discussed with cdsgames, a TPA3255 with an implementation worthy of the name, can bring a Purifi or a Bosc to its knees. You will see it soon )

 

[AfterThought]

A good TPA3255 amp makes all the difference. When I mean a good one I dont include 3E Audio here.

How come? What can be made better?

 

[stretchneck]

Should be fine, but this only makes sens if you have a high end TPA3255 module... not a "chinese" one with bad caps etc...

A good TPA3255 amp makes all the difference. When I mean a good one = DrMordor / XRK Audio / 360 Customs / Jlester I dont include 3E Audio here.

Of course - I have the Jlester modules. They're really well done.

 

[daniboun]

Of course - I have the Jlester modules. They're really well done.

First batch or last release with PFFB ? First version is not so good...

 

[daniboun]

How come? What can be made better?

I own many TPA3255, including 3E Audio (finished amp + modules) and the Drmordor is far away better !

 

[SinGun]

As we discussed with cdsgames, a TPA3255 with an implementation worthy of the name, can bring a Purifi or a Bosc to its knees. You will see it soon )

Well, after bringing down my Accuphase power amps and my 300B monoblocks nothing surprises me. Thanks god that there is a company like Texas Instruments. YEE-HAW!

Listening test Accuphase P-300X (rewired, recapped & aligned) vs Chinese TPA-3255 (modded) with Meanwell PSU (modded).


Transient response:

Accuphase P-300X =
TPA-3255 = Rocket

Transparency:

Accuphase P-300X =
TPA-3255 = Sunshine

 

[SinGun]

I own many TPA3255, including 3E Audio (finished amp + modules) and the Drmordor is far away better !

Of course! It is made in Russia!

 

[stretchneck]

Thanks,

If you had to invest :

SMSLM400 + 3E Audio TPA3255 or TOPPING DX3 Pro + Purifi / Bosc ?

Just pushed the button on Topping D90 - its is reported as having better soundstage than the SMSL. All being well will be with me next week - I'll compare against my T+A DAC 8 DSD (which I found to perform very close to the Mola Mola Tambaqui when I tested them together - T+A running DSD).

Cheers

 

[stretchneck]

First batch or last release with PFFB ? First version is not so good...

last release with PFFB

 

[stretchneck]

A German friend of mine just told me that the ICEpower125ASX2 sounds galaxies better than Purifi. He said the Purifi is plain bad, cos sterile & cold & emotionless reproduction.

Absolutely not true - Purifi is my best amp so far. Sounds better than LM3886 and would you believe an EAR861.

 

[SinGun]

SMSL M400 is reported to sound warmer. As always measured data of SMSL is better than Topping but not by much. I would go with SMSL. Topping has 4 LME49720 opamps installed - I don't like these opamps.

 

[daniboun]

last release with PFFB

Nice, good to know ) Let me know VS Purifi asap )

 

[SinGun]

Did you compare Purifi to TPA-3255? Can you describe the sound of the Purifi?

 

[daniboun]

Of course! It is made in Russia!

LOL I have to admit the Russians work well)

 

[daniboun]

Just to share,

I added this filter to my DrMordor amp. This helps to avoid RFI / RMI disturbances.

 

[SinGun]

Never, ever put a SMPS, DAC or PC into your stereo mains supply without mains filter. Cos the rest of the equipment will suffer for sure.

The best you can do without paying too much:

1st mains filter->1st isolating transformer->DAC

2nd mains filter->2nd isolating transformer->Anolgue equpiment (preamp, tuner, phono pre etc.)
->mains filter (after the 2nd isolating trans)->SMPS of power amp