Topping LA90 Review (Integrated Amplifier)

[restorer-john]

And if they did, would it be of interest to THX's lawyers?

My reading of the patent (and I'm not a lawyer or expert in patents) is that it appears to be incredibly broad in scope, vague, non-specific and contains multiple schemes, many of which, (if not all) previously existed in commercial products. As is often the case, the real detail simply is not presented or involves a proprietary combination not immediately obvious.

 

[VeerK]

Seems to be rapidly going out of stock and shenzhensudio removed their listing. Perhaps eol?

 

[Toku]

Seems to be rapidly going out of stock and shenzhensudio removed their listing. Perhaps eol?

LA90 and PA5 are no longer available from Shenzhen Audio, Aliexpress and Amazon.jp.
These two models seem to have been discontinued?
PA3s continue to be sold.

 

[Sokel]

LA90 and PA5 are no longer available from Shenzhen Audio, Aliexpress and Amazon.jp.
These two models seem to have been discontinued?
PA3s continue to be sold.

For PA5 is natural with all the mayhem it caused but LA90 didn't seem to have problems.
Maybe new model on the horizon?

 

[VeerK]

LA90 and PA5 are no longer available from Shenzhen Audio, Aliexpress and Amazon.jp.
These two models seem to have been discontinued?
PA3s continue to be sold.

I think they’re discontinued and end of life

 

[VQR]

For PA5 is natural with all the mayhem it caused but LA90 didn't seem to have problems.
Maybe new model on the horizon?

500 Watt amp at 4 Ohm with the specs of the LA90

Please look forward to it.

 

[192kbps]

TOPPING LA90D
March 23

 

[Bleib]

LOL, and I just bought LA90.. well I got it for a great price ..
D means remote, perfect channel balance etc?

 

[mike70]

LOL, and I just bought LA90.. well I got it for a great price ..
D means remote, perfect channel balance etc?

Class D? (remember, actual LA90 is class AB)

 

[Bleib]

Class D? (remember, actual LA90 is class AB)

No, I don't expect a change of technology. But extra spices added to it like remote.. well, in a few days we will know

 

[192kbps]

LOL, and I just bought LA90.. well I got it for a great price ..
D means remote, perfect channel balance etc?

Discrete.

 

[withoutsuit]

Thanks, I just ordered an LA-90 off amazon to test. Would love to hear if anyone has any other feedback comparing this to the Purifi 1ET400A modules.

And how is your impression? I'm still struggling which amplifier to buy for my ls50 meta with crossover 100hz. Class D Purifi or AB ToppingLA90.

 

[lordhumungous]

And how is your impression? I'm still struggling which amplifier to buy for my ls50 meta with crossover 100hz. Class D Purifi or AB ToppingLA90.

With Ls50’s I would go with more power. That’s been my experience since they came out. I would consider Outlaw Monoblocks recommended here for additional power .
I love my LA90 but I have it paired with 97db Tekton speakers

 

[withoutsuit]

With Ls50’s I would go with more power. That’s been my experience since they came out. I would consider Outlaw Monoblocks recommended here for additional power .
I love my LA90 but I have it paired with 97db Tekton speakers

I thought due to my crossover at 100Hz, there is not much power needed for down below.

 

[lordhumungous]

I thought due to my crossover at 100Hz, there is not much power needed for down below.

In my experience the Kefs need more power everywhere.

 

[Toku]

The LA90 Discrete has officially been announced.
But details are still unknown.

 

[VeerK]

According to Apos Audio:

What's the difference: LA90 Discrete NFCA Power Amplifier vs LA90 Power Amplifier​

The LA90 Discrete NFCA version features the cutting-edge discrete NFCA (Nested Feedback Composite Amplifier) power amplifier circuit. This design uses individual components optimized for audio performance, delivering superior sound quality by reducing distortion, enhancing linearity, and providing greater control over the audio signal. The LA90 Power Amplifier version is now discontinued.

 

[VQR]

The LA90 Discrete has officially been announced.
But details are still unknown.

LA90D is real 2023

 

[Bleib]

According to Apos Audio:

What's the difference: LA90 Discrete NFCA Power Amplifier vs LA90 Power Amplifier​

The LA90 Discrete NFCA version features the cutting-edge discrete NFCA (Nested Feedback Composite Amplifier) power amplifier circuit. This design uses individual components optimized for audio performance, delivering superior sound quality by reducing distortion, enhancing linearity, and providing greater control over the audio signal. The LA90 Power Amplifier version is now discontinued.

So...likely inaudible difference but quite amazing if it measures even better

 

[SiamXIII]

So...likely inaudible difference but quite amazing if it measures even better

The difference is quite audible - 100$ less.