obobskivich
Headphoneus Supremus
What's wrong with a '32 Ford man?
Take the QSC RMX5050. Find me another amplifier that can universally out-perform it. Let's say you can even spend five times as much (so around $10,000 is your cap). And it must drive either two channels at around 2500W each (2 ohms too, and stable), or BTL/monoblock into 5kW (4 ohms). I'm not aware of any non-pro amps that can do that (EV and Crown probably have solutions though).
Accuphase makes a monoblock that can do 1200W into 4 (if you buy two, and bridge them) - they're $12,000 a piece though (according to AC2).
McIntosh makes a bigger monoblock that can do 2000W into an undetermined load (it may be invariant, I get that sense from it's product page - it has some spelling errors too, ugh), and it takes up half a room and costs something like $60,000 a pair.
So which is "high end" and which is "high performance" in this comparison? The QSC absolutely has more output power, is smaller, costs less, and doesn't require dealing with a boutique dealer (which, by itself, is a huge selling point in my opinion). But it also has cooling fans (and I'm sure you get something like ~45-50 dBA when its going full tilt), rack ears, and absolutely is not designed to "fit in" with a home environment. A lot of audiophile types will absolutely cringe at the mere mention of QSC or anything of the sort, but in terms of absolute performance, it's the clear winner (or at least a legitimate contender). A pair of 5050's will put you "on the deck" with either of these amplifiers (ahead of the Accuphase components actually), as long as the fan noise, aesthetics, and non-buzzword compliant specs don't bother you.
So this then, it must be complete trash, right? $5,000, 90lbs. and NINE Watts per channel? Everybody knows MOAR Watts = Moar better! Maximum wattage is a very poor metric to measure amplifier performance or whether an amp is "high-end" or not. ICEpower amps can spit out 1000W per channel in a 20 pound box. Big deal, they still don't sound good. Making an amp really loud is easy, anybody can do that. Making it sound good is another matter entirely. 10,000 watts per channel is useless if the first watt sounds like garbage. Just ask Nelson Pass.
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There are a lot of ways to measure an amplifier. Harmonic distortion, IM distortion, slew rate, signal-to-noise, etc. If I'm looking at an expensive amplifier, I want to see the distortion curve in relation to output, and I want to see square wave results. That's still just being a meter maid though, it can only tell you so much. You still have to listen to the thing.
Pro amplifiers and PA speakers that can pump out 10,000 watts are completely irrelevant for the home market, not because they aren't "trendy" or "upmarket" enough, but because their performance - sound quality, not pressure level would be terrible. Watts and SPL are meaningless. I don't need or want a 2500 watt amplifier, especially one that has 40+dB of self noise from its cooling fan. What's the point of high levels of S/Nr when you have cooling fans louder than the quiet parts of the music?
Saying that one amp is as good or better as anything in high-end because it can output 2500 watts is like saying a speaker is as good or better as anything in high-end because it has 10Hz-50Khz frequency response. So what?
Originally Posted by obobskivich /img/forum/go_quote.gif
Like the QSC. It's not audiophile approved, and it would be a kludge for a home environment (if you could even run it), but it accomplishes the same thing as the Accuphase or McIntosh for substantially less money and in a smaller package
Prove to me that it accomplishes the same thing. Show me the listening tests that conclude that it sounds as good as an Accuphase or McIntosh.
You cannot live by objective measurements alone. The Ferrari objectively produces power-to-weight, skidpad, slalom, and race track numbers. A less expensive Porsche may be able to beat those numbers, but that does not automatically make the Porsche the better car. If the Ferrari sounds better, if it has better steering feel, if the chassis feels more nimble - all of those things are subjective and up to the individual. There's no meter you can point at which rates engine noise or steering feedback.
Similarly, the nine Watt 300B amp is not automatically disqualified because it loses the meter maid tests to some other amp. You have to actually use it for its intended function. Listen to it, then decide on whether its a value or not.
Will QSC repair your amp in 10 or 20 years for free like Boulder does?
You're right that most of the time you're paying for a TOTL monoblock you're paying for the time it takes for someone to hand-match the transistors, build and thoroughly test the unit, as well as for the fancy casework. Sure it might only translate to marginally lower distortion of questionable benefit, but there are people out there who will want to, say, discern the individual violins in an orchestra that tiny bit better and are willing to pay for that.
What's wrong with a '32 Ford man?
I've enjoyed my time with my UPA-1 Monoblocks from Emotiva, but I'm still curious about Class D (ICEPower stuff) and have been contemplating giving it a shot. I'm trying to decide if I should try ICE from W4S or just go with a heftier set from Emotiva and wait for their balanced pre.
I've heard they play well with Maggies (ICE), and considering Maggies are power hungry high power usually comes at a high cost when it comes to 'high end' stuff.
I think 'high end' is in the eye of the buyer. Diminishing returns kicked in a long time ago when it comes to Summit-Fi.