Recent content by mk1classic

Thanks for the review! An off-topic response: At first glance, it doesn't look like an optical illusion. But I expect @amirm would have reacted if one of the 3.5mm connectors would point down and forward, while the other one rearwards. Note, the egg-shaped earpiece would not fit upside down...

Can @JohnYang1997 or anyone else confirm if the COAX input is async or does it have a fix "time offset"? I see the possibility to use two or more with SHD Studio or another USB to multichannel COAX output unit for multi-channel active speaker setup.

Alternative SMPS suppliers for Class D amp kits? I've been lately looking at building a low powered multichannel Purifi amp for use with compression drivers. The Hypex SMPS1200A100 would be nice, but it looks like Hypex has stopped selling it or limiting private sale. This would have...

As long as they provide the THD vs Watt curves for different loads, frequencies etc we are OK. It doesn't matter what they indicate as MAX we do usually not play music continues at these levels. I'm happy as long as we stay away from this kind of Watt indications...:rolleyes::D

It's more powerful and looks to be a nice contender for use on heavier load speakers, or a bass amplifier in a multichannel setup, or as a high power bridged unit with a suitable controller / buffer stage.

New keyword? 1ET7040SA

Ideally you should use an input buffer. If you look at @tomchr and his Neurochrome input buffer you can chose to set it up with a unity gain and get only 13.2db amplifier gain with the Hypex SMPS and the 1ET400A amp stages.

A comment from @tomchr on EVAL-1 vs 686 here

A side note. Maybe you should invite Dave Rat over for some testing with real equipment... He does simplified tests on mile of cables in series coiled up. This is how they do it in PA world :)

A little off-topic but this shows how it should be done for amplifier designs with balanced connections only. RCA to XLR vs XLR to RCA will require different connections internally. See how Benchmark have two different cables, with floating screen and without. BENCHMARK RCA TO XLRM ADAPTER...

I see in hindsight I shouldn't have written the response above, as this is a highly flammable topic on a forum as ASR. I was not talking about supplier marketing texts or scientific tests. This was based on responses from a few lucky users in Norway testing the different samples in their homes...

Testers of the new Vera Audio amplifiers indicate a difference in the sound to the better when comparing the latest Purifi-Audio based Vera Audio P150/600 RS vs the more powerful Hypex based Vera Audio P400/1000. Minute differences, but enough to go for the 1ET400A amp with less power.

The sensitivity doesn't mater much when the digital Toslink input gives more or less the same output as the 3.9v input without clipping errors.

There's no problem having too much power as long as you don't use it all at the same time. Too little is more a problem... if you play loud. The question is; What is your preferred listening volume in your room, and how much headroom do you need?