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Post by Jim on May 5, 2015 16:33:20 GMT -5
An affordable 4ch Class D amp will sell like hotcakes for those chasing Atmos. Makes perfect business sense to me. I might even try a 2ch model and push it with a 4ohm load. I totally agree. I hope that they don't do some oddball small chassis. Just make it rackable and I'll be happy.
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Post by brand on May 5, 2015 17:53:27 GMT -5
I agree. I would have wished they stuck to a more robust u-series. We went from the beefy UPA-2, UPA-5 to the more petite in build UPA-200 and now we have what I assume are tiny class D amps (DC-1 chassis). Hopefully their price point and performance will be good. There are plenty of cheap-a** class D amps on the market. Crown is a good example. I hope that their offerings will be competitive. They know their arket I guess. But the UPA-2 was THE reason I joined the Emotiva family because they were the only game in town offering so much power at a good price and price was a key factor for me. At that time, if I was shopping and saw a tiny class D amp, I would have glossed over it and gone for more larger looking amps. And I'd have missed all that's great about Emotiva with that one move. But that's just me..... there some type of market for small class D amp that can sit on the bottom of a dc-1. Agree, can't see myself selling my UPA-1s for something like this it but we'll see once we get more details.
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Post by ncred02 on May 5, 2015 19:17:19 GMT -5
Im a double D man myself. Would only switch to tubes. Done with SS
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,223
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Post by novisnick on May 5, 2015 19:28:02 GMT -5
Class D?!!!!!! Class D?!!!!! I'm looking for Classe T amps,,,,,,T as in TUBES!!!!!!
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Post by drtrey3 on May 5, 2015 20:16:08 GMT -5
I will give them a listen, but the ones I have heard so far sounded to me like old Technics solid stat crap.
Trey
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Post by MusicHead on May 6, 2015 9:43:12 GMT -5
Class-D has come a long way and it will further improve. Who knows, maybe twenty years from now it will have gone the same way of Class A vs. Class AB or LP vs CD. There will be always someone that will prefer one over the other no matter what. Class-D represent innovation in many respects and it can only grow in popularity. It is already almost universally used in Low and Mid-fi applications (i.e.: Mobile devices and TVs) and although still a little "nichey" (is that even a word? ) it is also growing in the "serious" audio circles. For those that are more technically inclined, I found this article quite interesting, albeit a little old: sound.westhost.com/articles/pwm.htmAt the end what we hear and how we hear has a lot of subjectivity, at least in preferences. I can objectively agree with somebody that a given speaker/amp combination sounds "warmer" or "brighter" than another, but then I may subjectively prefer one rather than the other and in my preferences I may not agree with the other person anymore. However, knowing more of what is behind what we hear (in this case how Class-D works) can only help in forming an opinion.
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Post by Hair Nick on May 6, 2015 9:58:57 GMT -5
I'll just say what I have heard is incredible. Groundbreaking stuff.
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Post by stads77 on May 6, 2015 10:02:48 GMT -5
Can't have them sounding too good or you will phase out all your other "high" end amps. Such a catch 22 predicament
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,223
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Post by novisnick on May 6, 2015 10:04:41 GMT -5
I'll just say what I have heard is incredible. Groundbreaking stuff. Groundbreaking? Must have been a sub amp!!!!!
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Post by Hair Nick on May 6, 2015 10:08:37 GMT -5
Can't have them sounding too good or you will phase out all your other "high" end amps. Such a catch 22 predicament Like most things audio based, sound is completely subjective. Each has their own character and soul that sounds different.
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KeithL
Administrator
Posts: 9,937
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Post by KeithL on May 6, 2015 11:20:31 GMT -5
Although, as with most things, a lot of the limitations and problems they described have been "solved" with modern designs, the article does a great job of explaining the basic theory. Class-D has come a long way and it will further improve. Who knows, maybe twenty years from now it will have gone the same way of Class A vs. Class AB or LP vs CD. There will be always someone that will prefer one over the other no matter what. Class-D represent innovation in many respects and it can only grow in popularity. It is already almost universally used in Low and Mid-fi applications (i.e.: Mobile devices and TVs) and although still a little "nichey" (is that even a word? ) it is also growing in the "serious" audio circles. For those that are more technically inclined, I found this article quite interesting, albeit a little old: sound.westhost.com/articles/pwm.htmAt the end what we hear and how we hear has a lot of subjectivity, at least in preferences. I can objectively agree with somebody that a given speaker/amp combination sounds "warmer" or "brighter" than another, but then I may subjectively prefer one rather than the other and in my preferences I may not agree with the other person anymore. However, knowing more of what is behind what we hear (in this case how Class-D works) can only help in forming an opinion.
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Post by justincz on May 6, 2015 11:32:50 GMT -5
have yet to se a square wave from a class d that looks good, or even resembles a square wave. hypex ncore looked more like a drunk sinus.
says "ICE" in the original link, so its a complete Icepower from Denmark then? Rotel tried to modify theirs, didnt work out. complex stuff, even a small circuit change can render it useless.
had a few icepower (ASP & ASX2), never broken more drivers with any amp(!)
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Post by bolle on May 6, 2015 11:56:43 GMT -5
Class D has indeed come a Long way... My first Class D amp was in car-Audio about 2002, a Rodek 480 FRD for full range, which sounded like crap, muddy, no Resolution... Then class D in car hifi got at least viable for subwoofers, but analog monos where still better (I still use 2 ESX Q275.1 for my Subs...). The Alpine PDX where imho the next step, they were quite usable for full range applications. In home hifi I think Hypex UCD and Icepower were groundbreaking - solid, sounding "ok" but still not good enough for my ears. But in the last few years the Technology really took off, in fact I replaced my 7-350 with Class D half a year ago, because the new amps Sound better to my ears (and I also don´t care about measured "drunk sine waves" if what I hear is fine). nCore is also really good and more and more really good sounding Class D designs are emerging. I am really looking Forward to the new amps from Emotiva!
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Post by justincz on May 6, 2015 12:25:40 GMT -5
actually square waves is a good indication of how well engineered an amplifier is. sound.westhost.com/articles/squarewave.htmbut im not going to start e dabate on that.. my general experience with class d feels like the emperor`s new clothes. fair for PA use, portable equipment and active speakers etc.. nothing special but it saves the manufacturer a bundle, atleast with switching PSU + chassis and shipping cost. and they damage speakers in very subtle ways, without warning..
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Post by jmilton on May 6, 2015 12:34:10 GMT -5
Pioneer has done some good work with switching amps. See here: www.pioneerelectronics.com/PUSA/Home/AV-Receivers/Elite+Receivers/Class+D+Amps+and+Direct+Energy+HD+AmplifiersClass D is swiftly taking over the audiophile market, the only people still complaining about how they sound are the manufacturers who still make the Class A vacuum tube and Class AB solid state amps from the last century. With Class D you get 66% more output power for 1/3rd the price and lower your audio system’s power consumption by more than 50%, lowering your electricity bill as well. Small, efficient and cool operating...sounds good to me.
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Post by teaman on May 6, 2015 12:45:35 GMT -5
Pioneer has done some good work with switching amps. See here: www.pioneerelectronics.com/PUSA/Home/AV-Receivers/Elite+Receivers/Class+D+Amps+and+Direct+Energy+HD+AmplifiersClass D is swiftly taking over the audiophile market, the only people still complaining about how they sound are the manufacturers who still make the Class A vacuum tube and Class AB solid state amps from the last century. With Class D you get 66% more output power for 1/3rd the price and lower your audio system’s power consumption by more than 50%, lowering your electricity bill as well. In the chart below, note that the Class A amps use up the most electricity because they are on at full output all the time, yet 80% of that electricity is thrown away as heat. No offense but I hope the new Class D amps don't look like that...
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Post by ncred02 on May 6, 2015 12:49:47 GMT -5
Class D?!!!!!! Class D?!!!!! I'm looking for Classe T amps,,,,,,T as in TUBES!!!!!!
View Attachment wow, its not like you to upgrade so soon
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Post by jmilton on May 6, 2015 12:50:01 GMT -5
Music is in the ear of the beholder...
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Post by MusicHead on May 6, 2015 12:50:46 GMT -5
Although, as with most things, a lot of the limitations and problems they described have been "solved" with modern designs, the article does a great job of explaining the basic theory. Class-D has come a long way and it will further improve. Who knows, maybe twenty years from now it will have gone the same way of Class A vs. Class AB or LP vs CD. There will be always someone that will prefer one over the other no matter what. Class-D represent innovation in many respects and it can only grow in popularity. It is already almost universally used in Low and Mid-fi applications (i.e.: Mobile devices and TVs) and although still a little "nichey" (is that even a word? ) it is also growing in the "serious" audio circles. For those that are more technically inclined, I found this article quite interesting, albeit a little old: sound.westhost.com/articles/pwm.htmAt the end what we hear and how we hear has a lot of subjectivity, at least in preferences. I can objectively agree with somebody that a given speaker/amp combination sounds "warmer" or "brighter" than another, but then I may subjectively prefer one rather than the other and in my preferences I may not agree with the other person anymore. However, knowing more of what is behind what we hear (in this case how Class-D works) can only help in forming an opinion. Indeed Keith, that is why I specified "albeit a little old". Basics are basics, as you alluded to, however 2005 in "electronics years" could very well be the '800s
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Post by teaman on May 6, 2015 13:09:36 GMT -5
Music is in the ear of the beholder... Nothing against the Pioneer amps, it was the pic you linked.....blah...
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