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Topping LA90 Review (Integrated Amplifier)
- Thread starter amirm
- Start date
What a scam selling "upgrades" for a transparent amp.
So don't look at it.
Sounds like you're trying to convince people to buy a different power supply because the perfectly good one that it comes with is ugly on the inside.
So don't look at it.
What? You don't need a 4 pounds toroidal transformer to sound good?
The 21th century is madness (lol)
This is the first time I've seen the inside of the unit. It uses a resonant type SW regulator that is ideal for class D amplifiers. It looks to be of good quality.
And it looks just like the B200‘s power brick I opened.
https://audiosciencereview.com/foru...monoblock-amplifier-review.61206/post-2245330
Roland68
Major Contributor
And where exactly is the fraud here?
A linear power supply with 64 volts and 4 A is being advertised for the Topping LA90. Does it not meet the specifications? Does it not work? Is something being advertised that isn't true?
Every manufacturer can sell whatever they want (of course, only if it's legally permissible), and every buyer is free to decide whether to buy something. That's exactly how the market is regulated.
If an adult buyer thinks they want to buy a linear power supply for their LA90, it's certainly not fraud if a dealer sells one to them.
Like other members I was just curious and have shared pictures for their interest, that is all !
Roland68
Major Contributor
I really appreciate you sharing the pictures of your opened power supply with us. I also absolutely cannot understand why @xaxxon is accusing you of such a thing. It is generally very impolite to assume something about other users or to put strange words in their mouths.
It looks like the power supply is well-built and well-made.
Could you please take some more pictures of the bottom and directly from the top?
Sorry, its put back together now.
manisandher
Addicted to Fun and Learning
I'm confused (not difficult to do!).
One is supposedly linear, and one is switching? They both look identical to me.
Apologies if I've got the wrong end of the stick.
Edit: I suppose both of these are the Topping, and not the linear! Sorry, misunderstood.
Mani.
One is supposedly linear, and one is switching? They both look identical to me.
Apologies if I've got the wrong end of the stick.
Edit: I suppose both of these are the Topping, and not the linear! Sorry, misunderstood.
Mani.
Roland68
Major Contributor
Exactly, it's the Topping SMPS in both cases.
A linear power supply would have a large transformer, rectifier, and capacitor bank. The transformer alone would have the same volume as the Topping power supply and would be many times heavier.
There are some components different , if you look at the end where the AC enters.
The scam is replacing something with something that costs money that doesn't make it better. Taking people's money for no reason is a scam and it's a VERY common scam in the audio world.
Roland68
Major Contributor
Sorry, you can believe this is a scam if you like, but I think it's nonsense.
By this definition, 90% of the things sold in this world are fraudulent.
Starting with food, any watch over €/$20-$50, jewelry of course, clothing, cars, bicycles, televisions, cleaning products, kitchen appliances—one of the biggest rip-offs ever—and simply everything.
By your definition, this also applies to most audio equipment and speakers if they cost more than €/$100-$400.
I can't detect any fraudulent intent with the linear power supply offered. It only advertises the specifications, no false statements are made, and no one is intentionally trying to deceive.
A linear power supply is more expensive, but it can also have a lifespan 2-4 times longer than an SMPS. For a fully assembled linear power supply
If someone offers a high-quality switching power supply from the industrial or medical sector with better specifications, better components, significantly higher development performance, durability, etc. for €/$ 300, would that also be a scam?
How do you know !!!!!!!
what's is the goal in other power supply? ... answer that. And then, knowing that the amplifier is absolutely transparent with the actual power supply, you can have the thesis about it.
I want "better" components if their help to the primary goal of the device, in other way, is totally useless.
My opinion, i already know since decades that the hiend market is based on "magical properties" ... like Eurithmics said: "who am i to disagree?". Everyone is free to spend the money as they want.
I want "better" components if their help to the primary goal of the device, in other way, is totally useless.
My opinion, i already know since decades that the hiend market is based on "magical properties" ... like Eurithmics said: "who am i to disagree?". Everyone is free to spend the money as they want.
babadono
Active Member
- Joined
- Jul 8, 2021
- Messages
- 270
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- 236
And probably hum.
How quiet is quiet? Switching power supplies have come a long way and in my experience have very much helped keep the ambient noise level down in a quiet listening room. And Amen to that.Similar threads
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