Which TPA3255 amp do you recommend?

[daniboun]

I have know the products you said. AIYIMA XZD-1752PRO and Tilear 2.1 is the amplifier we produce for our customer.
So they have the same cover.
XZD-1752PRO is 2.0ch TPA3255.
AIYIMA A04 is 2.0ch TPA3251.
Tilear is 2.ch TPA3116.

Hummmmm seems you don't know your own products....
What about caps used on the XZD-1752PRO ??? would be nice to answer please )


You must be wrong somewhere... Tilear Rev 2.1 = TPA3251 = AIYIMA A04
Proof :

 

[AIYIMA]

Hummmmm seems you don't know your own products....
What about caps used on the XZD-1752PRO ??? would be nice to answer please )


You must be wrong somewhere... Tilear Rev 2.1 = TPA3251 = AIYIMA A04
Proof :

View attachment 87998

Our engineer said that this is only the printing of the board, and it has no practical significance.

 

[daniboun]

Our engineer said that this is only the printing of the board, and it has no practical significance.

idle speculation ....
This is not a professional response!

The truth is that all amps are more or less from the same supplier so resellers get lost in PCB tags regardless of the details consumers might be sensitive to ! this is definitely why I recommend a TPA325X worthy of the name! (Drmordor or XRK Audio maybe 3E Audio....)

Last attempt : what caps on XZD-1752PRO ????

 

[chips666]

"I recommend a TPA325X worthy of the name! (Drmordor or XRK Audio)"

Patiently waiting for Drmordor latest board
I am using TPA3255EVM op-amps bypassed for the moment
Enjoy...

 

[daniboun]

"I recommend a TPA325X worthy of the name! (Drmordor or XRK Audio)"

Patiently waiting for Drmordor latest board
I am using TPA3255EVM op-amps bypassed for the moment
Enjoy...

Thanks. EVM are nice too.

DrMordor "all in one" TPA3255 with LLC PSU / Wurth / Epcos / Samsung FC caps
Ferrocore handcraft Inductors
Elna Silmic II for buffer
OPA Mc33272
Balanced / Unbalance mode by jumper
PFFB +

White PCB = 110/220V auto mode
Black PCB = 220V only

 

[nerone]

Thanks. EVM are nice too.

DrMordor "all in one" TPA3255 with LLC PSU / Wurth / Epcos / Samsung FC caps
Ferrocore handcraft Inductors
Elna Silmic II for buffer
OPA Mc33272
Balanced / Unbalance mode by jumper
PFFB +

White PCB = 110/220V auto mode
Black PCB = 220V only

Hi, are they comparable to the Hypex NC 252/400?
Price?

 

[somebodyelse]

In addition, our engineers want me to ask if A04/A07 is upgraded, what functions do you want to add?
1. Fiber coaxial
2. Bluetooth
3. 2.1CH
4. PC USB

5. PFFB

 

[daniboun]

AIYIMA said:
In addition, our engineers want me to ask if A04/A07 is upgraded, what functions do you want to add?
1. Fiber coaxial
2. Bluetooth
3. 2.1CH
4. PC USB

PFFB
Full Nichicon / Elna Caps
Anti Pop
OPA1656

That is it )))))))))))))))))

 

[daniboun]

Hi, are they comparable to the Hypex NC 252/400?
Price?

I own only NC500MP + NC250MP Double Mono and NC502MP. (see below)
It's clearly neck and neck with the Hypex Ncore . But Hypec NC500 Double Mono / NC502 are more powerful for sure
Soundstage is better with Drmordor TPA325X, I personnaly really love this point.
I do love Hypex ncore but they are more expansive than TPA325X...

I also own a double Mono Pascal U Pro amplifier 2X240W / 8 ohms (ex Icepower engineer) which is very powerful and accurate.
See below as well but out of price.... (LAST picture)

So I have compared many Class D amplifiers and really appreciate the TPA325X.

 

[Ralferator]

The BRZhifi is great for the price. PSU is only 36V I wonder why (power is limited so).... I updated the 4 OP Amps on it (OPA1656) : two are dedicated for the Tone Control and two for the amp itself. Tone control is OK after OPA update.
B. A800 sounds great too and powerful. But I clearly prefer the TPA325X, including the BRZhifi.

Another great amplifier I discovered and that sounds very good (particulary regarding the mediums and trebles) , this Class H :

Thank you - that helps. Do you know if i can get real OPA1656 or LM4563NA from Aliexpress? Or where would you get them to make sure that they are not fake?

 

[daniboun]

Thank you - that helps. Do you know if i can get real OPA1656 or LM4563NA from Aliexpress? Or where would you get them to make sure that they are not fake?

You won't get any Genuine OP amps from ali ! Forget it
Here some trust links :

https://www.audiophonics.fr/fr/composants-electronique-aop-c-374.html

OPA1656 need adapter to fit on DIP8 socket.

bushellj is the member to contact for getting ready to use OPA1656

https://www.diyaudio.com/forums/members/bushellj.html

Or get it below :

https://www.ebay.fr/itm/OPA1656-Sou...993267?hash=item366aad8f33:g:tJgAAOSwLIZeD4j8

The best alternative to OPA1656 is OPA1612, they are really pretty close )

https://www.audiophonics.fr/fr/comp...op/opa1612-aop-double-dip8-unite-p-14507.html

 

[JohnYang1997]

Thank you - that helps. Do you know if i can get real OPA1656 or LM4563NA from Aliexpress? Or where would you get them to make sure that they are not fake?

Why not directly get from TI? Or Mouser.

 

[daniboun]

Why not directly get from TI? Or Mouser.

As said OPA1656 = SOIC 8... if you know how to solder no problem )

 

[JohnYang1997]

As said OPA1656 = SOIC 8... if you know how to solder no problem )

Then get LME49720 or LM4562 in DIP8. Nothing wrong with those.

 

[daniboun]

Second option it is : bypass the OP Amps, many members got great results see .diyaudio.com

 

[Zek]

see .diyaudio.com

Link is for bushellj's Profile

 

[daniboun]

Link is for bushellj's Profile

Right ) I corrected

 

[aon500]

I have know the products you said. AIYIMA XZD-1752PRO and Tilear 2.1 is the amplifier we produce for our customer.
So they have the same cover.
XZD-1752PRO is 2.0ch TPA3255.
AIYIMA A04 is 2.0ch TPA3251.
Tilear is 2.ch TPA3116.
----------------------------------------------------------------------------------------------------------------------------------------------
In addition, our engineers want me to ask if A04/A07 is upgraded, what functions do you want to add?
1. Fiber coaxial
2. Bluetooth
3. 2.1CH
4. PC USB

1,4 not need we can use DAC.

Tone Control please! I will buy another one.

and I use 48V+-10% power supply , 53V available ver. should be perfect.

 

[daniboun]

1,4 not need we can use DAC.

Tone Control please! I will buy another one.

and I use 48V+-10% power supply , 53V available ver. should be perfect.

LOL 53V... you go over the limit of the TPA3255 chip itself ) be realist bro !
A cheap tone control makes no sense.... you will deteriorate THD

If I were you, I would wait for the new SY-DAP2002 by 3E Audio (RTR amplifier)
Or also wait for the new TPA3255 by JLESTERP, new version with PFFB coming soon )

https://www.jlelectronicsph.com/product/ticore260btl-class-d-amplifier-tpa3255

 

[nerone]

Under normal circumstances, it is possible, but you need to see the power supply current and speaker power.

Thanks for the reply, it is better Aiyima A04 or A07 on 4 ohm passive speakers, 87/90 DB
Regards