Apollon NCx500ST Stereo Amplifier Review

[Everett T]

Are you saying that 2 ohm load would not affect the Hypex modules as much as in case of a "traditional" class AB amplifier? I really do not think so. I have tested for you, 2 amplifiers into 2.2 ohm load. My apologies I do not have exactly 2 ohm.

The amplifiers are my A250W - class AB and my NC252MP - class D. They both are rated 2 x 250W/4ohm and they both have almost same power into 4 ohm load. The result into 2.2 ohm load is bellow:

View attachment 470460

The class AB amp has THD = 0.1% at 326W. The class D amp has THD = 0.1% at 200W, however soon after that the protection shuts the class D amp down. So it is definitely not "less affected" by the 2 ohm load, the opposite is true.

View attachment 470465 View attachment 470466

I was referring to the nc500x module and the referenced Purifi. Thanks for the information!

 

[EJ3]

Why we talk about a technology based on only one sample case or implementation?

Hey, somebody died with electrical current, electricity is too much dangerous, please, we need to go back to candles.

Damn, the Christmas tree caught the house on fire (yeah, we keep it up until it's good 'n dry), then stuff it up the flue & light it off.
I guess that we need to just stay in darkness now to prevent that from happening.