Topping LA90 evaluation and discussion (Integrated Amplifier)

[Matias]

Also bridge mode max/peak power is 8 ohms not 4.

 

[Matias]

Topping LA90 evaluation and discussion (Integrated Amplifier)

https://www.l7audiolab.com/f/nda-poweramp/ New power amp measured by Wolf, currently under NDA. Looks very interesting. His measured SINAD is just above 120 at both 5W and 100W.

www.audiosciencereview.com

 

[Mario Sanchez]

When used in mono mode minimum speaker impedance 8ohm why?

I don't know about the details, but I'm gonna guess overcurrent concerns?

 

[Matias]

Topping LA90 evaluation and discussion (Integrated Amplifier)

https://www.l7audiolab.com/f/nda-poweramp/ New power amp measured by Wolf, currently under NDA. Looks very interesting. His measured SINAD is just above 120 at both 5W and 100W.

www.audiosciencereview.com

 

[aravena562]

@amirm
congratulations for the site, I read it years ago but only yesterday I created my user. I was expecting a pa5 with more power and surprising topping with this.

See, were you able to measure the bridge mode at 4ohm? My speakers are 6ohm marten django xl... and I think it would require two la90s in mono to have enough power, but I don't know if they would work properly.

 

[TjindarSingh]

Does it manage 2ohm load?

 

[Bleib]

This is pornography!

So, measures better than many or even most DACs, only downside is that it's not very powerful.

No remote so need to buy two and use with a preamp that has it. Won't be cheap, but gosh.

 

[Katoona]

I am curious about the same as aravena562. How will the amps work in mono mode if using speakers between 4-8ohm?

 

[amirm]

I am curious about the same as aravena562. How will the amps work in mono mode if using speakers between 4-8ohm?

They should be fine. Music is not as demanding as test tones.

 

[abdo123]

Very impressive design! My salutations to everyone involved.

Thank you @amirm for another excellent review!

 

[Godataloss]

This is very interesting to this guy with very efficient speakers.

 

[peanuts]

great that they have vanishningly low distortion and noise. but 36watts into 8ohm is not for me. yes you might be tempted to buy two, but then you also have two huge power supplies outside of the amp case

 

[alekksander]

amazing engineering & well priced.

 

[Matias]

There are like 4 threads about this amp now.

Topping LA90 evaluation and discussion (Integrated Amplifier)

https://www.l7audiolab.com/f/nda-poweramp/ New power amp measured by Wolf, currently under NDA. Looks very interesting. His measured SINAD is just above 120 at both 5W and 100W.

www.audiosciencereview.com

 

[Vini darko]

Thanks for the review Amir. Superb preformance from topping congrats @JohnYang1997
What's the imput impeadance please?

 

[TjindarSingh]

They should be fine. Music is not as demanding as test tones.

2ohm?

 

[Ra1zel]

So 2x90W in 4 ohms for this ultra-silent amp. Desktop users rejoice, living room users look elsewhere.

TOPPING LA90 Amplifier Class AB 2x90W 4 Ohm / 1x180W 8 Ohm Silver - Audiophonics

Topping offers with its LA90 a powerful and efficient amplifier, which can work both in stereo and mono mode. In the first case, it is capable of delivering a power of 2x90W under 4Ω or 1x180W under 8Ω.

www.audiophonics.fr

True, for my room and my speakers... headless panther, simply too weak ¯\_(ツ)_/¯

 

[staticV3]

@AdamG247 @BDWoody
People were very excited coming up to the launch of the LA90 and as a result we now have four active threads about this Amp.
One
Two
Three
Four (this one)

May I suggest either merging them, or locking the others and sending everyone over to this one?

 

[pma]

Low gain = low noise. Too low gain, in fact .

 

[DSJR]

Forgive me if I've missed it, but output impedance, especially bridged please?