Is this another Blameless amp?

[gpezzella]

Hi
chatgpt say that this is another blameless amp

https://it.aliexpress.com/item/1005001337470583.html​

If yes you have a schematic?

Thanks​

 

[jacques antoine]

Why don't you ask chatgpt to draw it for you 🤤

 

[Kleinhorn]

Hi..
May possible that GHX had build a second blameless amp. I have bought this boards https://it.aliexpress.com/item/32847643038.html?gatewayAdapt=glo2ita
I have a schematic, but i can't say if identical...
The sound is fine over all freqencies

Greets
Peter

 

[Jeffh01]

@gpezzella I think to qualify as Blameless, there are not enough transistors in that amp. I think it takes 16 transistors to meet the bar along with a few physical layout details. It might still be pretty good anyway!

If you want be 100% sure your amp is blameless, buy one from Douglas Self. I did. Easy enough to build, great build guide and of course full circuit diagram and set up guide.

You can also be sure to buy full spec components, which is required to meet the spec.

 

[Berlusconi]

If you want be 100% sure your amp is blameless, buy one from Douglas Self. I did. Easy enough to build, great build guide and of course full circuit diagram and set up guide.

Indeed,
I have built Compact Blameless amplifiers using boards purchased from Douglas Self. All components are available from reputable sellers, except output transistors but there are adequate replacements.
In contrast to Chinese derivatives, Douglas Self provides great documentation facilitating easy and reliable build.
So: why should we seek bad copies if there are originals at affordable price.
The most frequent derivative Blameless products are different LJM amplifiers which have undesirable issues exactly because the author wanted to be somehow original but predominantly failed to achieve the Blamelesness.
If you want to have a real Blameless amplifier, contact Douglas Self. Simple.