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Wow, that's quite a lot of capacitors. Why so many?
DIY as in assemble yourself? I tried finding parts or info or schematics or designs for their other amps, but nothing of any real detail seems available. Cool potential offering here, but based on their other offerings, looks like it will probably be phenomenally expensive even in kit form. And not at all in the kind of hacker-ish open form we might hope. It'd be great to see some real open-source wonkery start eith…
Taxes and tariffs are responsible for "tariff engineering" to get around the definitions used for many tariffs. For example, a lot of early DSLRs couldn't record video continuously for more than 20 minutes, because this would qualify them as camcorders.
Either that or they're selling this for people who have the skills to create a chassis (or have one made) and then put these guts into. Sort of a "crate engine" of the audio world, I guess.
I liked the "affordable" claims. The complete kit is $1200...
Wow, that's quite a lot of capacitors. Why so many?
Modern circuitry has increased efficiency and reduced the heat dissipated by an amp, but the capacitors still need to supply the full amount of power between mains cycles.
It is sometimes easier to get the desired performance out of paralleled banks of capacitors rather than just use one large capacitor. This does look a bit excessive, though.
Too bad it's not actually DIY. Does anyone remember the 80s-era catalog of DIY HiFi kits? I can't remember the name, it was electronics geek+audiophile porn. Maybe it was Craven? something like that?
Audiophool class-D amplifier. Now I've seen EVERYTHING :P
I assume you meant "audiophile", not audiophool, right? If so, I wonder what makes an amplifier to be an audiophile amplifier in your opinion? Objective and measurable parameters of the amplifier in question are phenomenal.
It’s a shame because Class-D has come a long way, there seems to be a natural opposition to anything digital.
Class-A is great but is expensive, heavy and a big electricity bill.
Wow, that's quite a lot of capacitors. Why so many?
500W is a lot of juice. Consider that 120 times per second, the amp gets no power from the wall and has to rely solely on the power in capacitors. The capacitors have to supply the full 500W. Possibly more—something that’s nominally 500W “peak” but driving a speaker may see instantaneous loads much higher. Modern circuitry has increased efficiency and reduced the heat dissipated by an amp, but the capacitors still ne…
Or price, although that would raise new questions. Another is availability of components. Or perhaps the form factor (these capacitors seem slightly less tall than the ones on the other board in the picture).
I'm both an IT and audio geek, does HN likes audio geekery? I'm not affiliated with the company behind this website BTW..
Only if scientifically backed.
Too bad it's not actually DIY. Does anyone remember the 80s-era catalog of DIY HiFi kits? I can't remember the name, it was electronics geek+audiophile porn. Maybe it was Craven? something like that?
Not to slight Hypex (the company behind the Ncore family of Class D chip amps), mind you, they're probably the only chip amp to ever succeed in making low distortion high output high efficiency chip amps (and if it is a class D and doesn't have a Ncore, it probably sucks, unless it's that new THX design family); but it will never outperform a Dynalo/Dynahi built correctly.
Earlier quoted context omitted.
500W is a lot of juice. Consider that 120 times per second, the amp gets no power from the wall and has to rely solely on the power in capacitors. The capacitors have to supply the full 500W. Possibly more—something that’s nominally 500W “peak” but driving a speaker may see instantaneous loads much higher. Modern circuitry has increased efficiency and reduced the heat dissipated by an amp, but the capacitors still ne…
Perhaps it's a measure against failure? Do these capacitors fail open? Or price, although that would raise new questions. Another is availability of components. Or perhaps the form factor (these capacitors seem slightly less tall than the ones on the other board in the picture).