Topping LA90 Discrete Amplifier Review

[staticV3]

I would love to buy 6 of them, to be used in my 3 way electronic X overed system.

The B200 seems to be a better choice for that use case.

The problem is musical, not pure X -Y graphs, how it handles complex signals.

There is no problem. The LA90 handles complex signals flawlessly.

Here's the waveform of Amir's multitone signal:


And the LA90D's output of said waveform analyzed via FFT:


Perfect reproduction of this immensely complex signal, with impeccable timbre and timing.

 

[Pulkass]

The B200 seems to be a better choice for that use case.


There is no problem. The LA90 handles complex signals flawlessly.

Here's the waveform of Amir's multitone signal:
View attachment 388502

And the LA90D's output of said waveform analyzed via FFT:
View attachment 388503

Perfect reproduction of this immensely complex signal, with impeccable timbre and timing.

Thanks you are kind and useful way over the top!!!!

 

[Tangram]

I've had the following in one of my active systems for nearly a year now:

2x LA90 (both in mono mode)
2x LA90D (both in stereo mode)
2x PA7 Plus

All still working/performing perfectly. (But only switched on a few hours per week.)

Mani.

Have you compared LA90 v LA 90 D. On sound quality ?Thank you.

 

[VeerK]

Have you compared LA90 v LA 90 D. On sound quality ?Thank you.

They both should be audibly transparent. The only concern I have is about that popping issue, hopefully that’s been revised so I can finally pick up a pair

 

[Tangram]

They both should be audibly transparent. The only concern I have is about that popping issue, hopefully that’s been revised so I can finally pick up a pair

I have the la90 for 20 months now, what popping issues !

 

[manisandher]

Have you compared LA90 v LA 90 D. On sound quality ?Thank you.

No. (And I really don't have any inclination to do so.)

 

[gitaarwerk]

I'm curious if a dual-mono set-up would be powerful enough to drive a Kef Reference 1 (non-meta version). I know Devialet doesn't got the best measurements here, but I'm not unhappy with how it sounds. Unfortunately, I need to some work on the house so need to get some money from selling some stuff. Devialet makes sense, as I'm not listening a lot, and I like the idea of having something without software that doesn't 'age'. (Altho, hifi software doesn't age as fast as others)

 

[terryforsythe]

I'm curious if a dual-mono set-up would be powerful enough to drive a Kef Reference 1 (non-meta version).

It depends on your needs. Check out the B100 review where that topic is discussed extensively for that amplifier.

 

[staticV3]

I know Devialet doesn't got the best measurements here

They get fantastic measurements:
https://www.spinorama.org/?brand=Devialet&page=1

Out are you referring to their Amps?

 

[terryforsythe]

They get fantastic measurements:
https://www.spinorama.org/?brand=Devialet&page=1

For their frequency response, the Phantom II and Phantom Reactor 600 measure well. The Phantom I has some roughness, but looks better with EQ.

I didn't see compression and harmonic distortion data, but perhaps I missed it. If they perform well in those measurements, these speakers would be very compelling.

 

[Matias]

They get fantastic measurements:
https://www.spinorama.org/?brand=Devialet&page=1

Out are you referring to their Amps?

Amp was nothing to write home about:

Devialet Expert 200 Amplifier, DAC and Streamer Review

This is a review and detailed measurements of the Devialet Expert 200 Amplifier, DAC, Phono premaplifier and wired streamer. It seems to be a generation behind the current products offered by Devialet. The Expert 200 cost US $9,650. The Devialet line of amplifiers made quite a buzz when...

www.audiosciencereview.com

 

[gitaarwerk]

They get fantastic measurements:
https://www.spinorama.org/?brand=Devialet&page=1

Out are you referring to their Amps?

Yhea, I am referring to their amps The Expert Pro 440 in my case. I am not unhappy about them. Sure, the price may be... questionable. But they are also fine on the eye. Of course, I read the reviews here as well before buying. It's mostly that I am not listening too much, and software/embedded software within this current state of the world, is not something I like to keep sitting around and do nothing. A good non-smart amplifier may be more durable in terms of technology, and I can build a streamer myself, as programmer. Convertor boards are quite available for things like raspberry pi or like-wise stuff. Heck, even ESP32s , and they can be much cheaper than 3000 $ upgrades of the Devialet ;-). So I save some money for my house, and have another hobby to spend some time on.

It depends on your needs. Check out the B100 review where that topic is discussed extensively for that amplifier.

Will do that for sure, thanks

edit:
I checked it out. Seems like it could work... there are some comments it will not work that well for the Reference Ones that I have. But this is a B100. Perhaps the B200 could do the trick. Or ... who knows, the Schiit mono blocks. And perhaps a Topping A90 pro as pre.