Poll for Topping PA5 owners only please.

[iLoveCats]

Do you have 8 ohm speakers paired with Fosi ZA3?

Yes. 8 ohm, 98dB sensitivity, compression horns. They pick up a lot.

 

[Guddu]

Yes. 8 ohm, 98dB sensitivity, compression horns. They pick up a lot.

That explains why you feel elevated top end with ZA3.

 

[Talisman]

That explains why you feel elevated top end with ZA3.

This explains nothing, the nominal impedance of a speaker is an arbitrary value assigned, to understand if there is actually an interaction capable of modifying the frequency response you would need to see the impedance curve of the speaker.

 

[iLoveCats]

This explains nothing, the nominal impedance of a speaker is an arbitrary value assigned, to understand if there is actually an interaction capable of modifying the frequency response you would need to see the impedance curve of the speaker.

I don't have that information, it's a DIY Sound Group speaker they don't sell anymore. Fusion 12 Tempest.

 

[Sokel]

I don't have that information, it's a DIY Sound Group speaker they don't sell anymore. Fusion 12 Tempest.

Maybe this will help you,I don't know if it's final but it should be close.you can also sim it if you like following the thread of the link:

Fusion Tempest 12 crossover

Purchased a bare bones Fusion 12 kit from DIYSG back in August 2020. Erich was able to provide me with a list of crossover parts but no photo or schematic of the crossover. My last email response from him was in August when he stated that he would provide some sort of assembly instructions for...

www.diyaudio.com

Seems like the upper region is close to 5-6 Ohm all the way up.

 

[Guddu]

This explains nothing, the nominal impedance of a speaker is an arbitrary value assigned, to understand if there is actually an interaction capable of modifying the frequency response you would need to see the impedance curve of the speaker.

Okay… I believe you. Thanks

 

[Ravitester]

The PA5 impressed me with the audio quality, but mine went wrong after about 5 months and had to be replaced, so not impressed with the quality control, but it was replaced without fuss (probably because they read ASR) so I was impressed with the customer service. That is 2 out of three.

 

[Eldus]

Well, my PA5 is now producing noise in the left channel. It builds the longer the amp is on. Just changed my vote. Wish they still had the blue color in the newer models.

 

[Canuck57]

Another one bites the dust...

 

[Guddu]

Well, my PA5 is now producing noise in the left channel. It builds the longer the amp is on. Just changed my vote. Wish they still had the blue color in the newer models.

Just to clarify - first gen PA5?

 

[Eldus]

Just to clarify - first gen PA5?

Yep, bought it a few months after launch IIRC.

 

[Guddu]

Yep, bought it a few months after launch IIRC.

I guess its bound to happen to all first gen PA5, just a matter of time then!

 

[Roland68]

Well, my PA5 is now producing noise in the left channel. It builds the longer the amp is on. Just changed my vote. Wish they still had the blue color in the newer models.

Clear case for https://www.audiosciencereview.com/...ix-d01-module-replacement-for-everyone.44219/
Solves the problem permanently.

 

[DWPress]

Well, it was a good run anyway. I purchased a PA5 balanced as soon as they came out and after a couple years of light duty only driving my tweeters at a fixed gain it finally died last weekend. Not in my use though, I'd replaced it a bit ago so decided to gift it to a friend along with a Wiim Pro to trick out his new (to him) high sensitivity floor standing speakers. Oh well, at least he still had the crap Sony integrated to use with the Wiim.

 

[Holmz]

Well, it was a good run anyway. I purchased a PA5 balanced as soon as they came out and after a couple years of light duty only driving my tweeters at a fixed gain it finally died last weekend. Not in my use though, I'd replaced it a bit ago so decided to gift it to a friend along with a Wiim Pro to trick out his new (to him) high sensitivity floor standing speakers. Oh well, at least he still had the crap Sony integrated to use with the Wiim.

If the “crap Sony” continued working after the PA5 died “the in tail”,.. then I am not sure that the “crap” modifier/adjective/adverb is accurate when applied to the Sony.

 

[DWPress]

True that!

 

[Doodski]

If the “crap Sony” continued working after the PA5 died “the in tail”,.. then I am not sure that the “crap” modifier/adjective/adverb is accurate when applied to the Sony.

O' BoY! Have I seen a few of really crappy Sony amps and receivers. Like really inexpensive STK amp ICs and everything is plastic and cheap plastic. Sony can make some of the best stuff but when it goes make budget gear the stuff gets very cheap.

 

[Eldus]

Well, it was a good run anyway. I purchased a PA5 balanced as soon as they came out and after a couple years of light duty only driving my tweeters at a fixed gain it finally died last weekend. Not in my use though, I'd replaced it a bit ago so decided to gift it to a friend along with a Wiim Pro to trick out his new (to him) high sensitivity floor standing speakers. Oh well, at least he still had the crap Sony integrated to use with the Wiim.

Reach out to Topping.

 

[MAB]

Reach out to Topping.

A brief summary of this thread:
The PA5 amp breaks, it has a systematic defect in the design. Many warranty replacement amps broke too. Many people bought two, and both broke. The defect rate is extremely high.
@TOPPING-Service and @JohnYang1997 and many of the resellers are not helpful.
ASR member has identified the problem, developed a fix for the systematic defect. The replacement module costs less than the effort of engaging Topping, who don't seem to understand reliability or customer service.

 

[antcollinet]

A brief summary of this thread:
The PA5 amp breaks, it has a systematic defect in the design. Many warranty replacement amps broke too. Many people bought two, and both broke. The defect rate is extremely high.
@TOPPING-Service and @JohnYang1997 and many of the resellers are not helpful.
ASR member has identified the problem, developed a fix for the systematic defect. The replacement module costs less than the effort of engaging Topping, who don't seem to understand reliability or customer service.

That seems to cover it