Finished this Sure 500W Class D power amp. and sounding great. A lot of work and as you can see pretty cramped under the bonnet. The max voltage you can feed this module is 52V. My PS develops 54V and can deliver 16A (theoretically). It weighs in at just over 10kg. With my ear to the speaker a very slight hiss but at 1m, nothing.
Sound stage is razor sharp with central images etched into marble. I have never heard anything so precise. The overall sound may be a little forward but this is comparing with a 300B tube amp. Bass is extensive and full-on. And this baby plays loud. Way too loud for my 30W speakers. No distortion or strain when cranked. It should deliver about 200Wpc with under 1% distortion. It is clean, clear but doesn't feel too analytic. Decay is crazy long and reverb and echo like I have never heard anywhere. Spending time now burning it in. Robusto is a crazy good amp.
Sound stage is razor sharp with central images etched into marble. I have never heard anything so precise. The overall sound may be a little forward but this is comparing with a 300B tube amp. Bass is extensive and full-on. And this baby plays loud. Way too loud for my 30W speakers. No distortion or strain when cranked. It should deliver about 200Wpc with under 1% distortion. It is clean, clear but doesn't feel too analytic. Decay is crazy long and reverb and echo like I have never heard anywhere. Spending time now burning it in. Robusto is a crazy good amp.
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Seems more like Crazy then good, Why is it all Class D amps I have audtioned say to me turn me off, turn me off, I am allergic to Class D rubbish
Not all amps, tube or SS are good or even great. Then one comes along that is just excellent.
I have read some incredible reviews for them. Not sure. If they are better they will be a hell of an amp.
You must never believe any review these days. I had a home demo of the Devialet -D Premier and I preferred my 16 year old Class AB amplifier. IMO Class AB with bi-polars is still the best both for sound and value.
We all have our hangups... By the way, why are you hanging out in the Class D subforum?
The only contender on the Sure site are the TAS5630 boards.
I have ironclad self control, I'm no fan of turntables, yet I've managed to get by avoiding posting this opinion in any DIY turntable threads so far.
Which Class D amps have you tried?
So far just two Sure modules. First the 100W again with linear PS and now the Sure 500W.
I may try the Hypex NC400. A pair cost about $1000. This now becomes an expensive build. I may need to sell one amp before starting the next project.
I may try the Hypex NC400. A pair cost about $1000. This now becomes an expensive build. I may need to sell one amp before starting the next project.
Yes but give it 20mins to warm (which they don't warm). 40,000uf of caps takes an while to settle.
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