A switching power supply just can't match a massive toroidal and lots of capacitance. XPA-1
Last Edit: Feb 20, 2011 10:32:25 GMT -5 by jackfish
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Post by boarder1995 on Mar 3, 2011 17:16:00 GMT -5
I've tried D-sonic 500W class D amps, and other lower wattage ICE amps, and while light, quiet, efficient, cool, etc., they just didn't sound quite right. Very clinical, accurate, but uninvolving. The instrumentals' (music) attack didn't have the attention grabbing texture, just very abrupt, almost fatiguing. Movies, they were fine and quite impressive, but not for me for music. Just my take on things. I'll stick with class A or A/B for music involvement.
I'm getting a pretty good deal on a pair of Bel Canto REF1000, the original ones. i can get them for $1400. The new XPA1 are going for $1700. OPINIONS PLEASE !!! Thanks.
Tough choice. Both are excellent products, and fully balanced. The older I get , the more I love light weight and efficient products...hint...
W4S balanced? Balanced input does not mean balanced operation, balanced input in single ended equipment can be done with one differential opamp at the input.
XPA-1 has much more current capability, W4S does not really drive 2ohm and 1ohm loads like breeze. Measurementswise XPA-1 has edge pretty much in every way if you look at these measurements of Bel canto Rer1000m monoblock, that have the same ICEpower modules than the W4S uses: www.stereophile.com/content/bel-canto-ref1000m-monoblock-power-amplifier-measurements . Just plain horrible (but they don't necessary sound bad, it a matter of taste).... There are much better measuring class D amps than W4S like Hypex Ncore...
I took and would take again XPA-1s over any mid class class D amp mono blocks that I know of. Maybe first commercial hypex 1000w-ncore implementations could change my mind, if they would cost max ~1800$ $ per piece.
Call Wyred 4 Sound and they'll tell you. Their amps are differentially fully balanced from input to output.
I can't comment on digital amps and what they sound like because I haven't heard one, but I will in the near future when the new Red Dragon amps come out. If they don't do what they're supposed to do, then see ya later.
Last Edit: Jan 30, 2012 16:54:44 GMT -5 by Deleted
Legis, are you going off of reviews and measurements, or do you have experience with both of these amps in an A/B? Not trying to start anything, but I am curious.
I have heard couple different class d amps but have not owned them myself. I could consider Ncore though... I was commenting mainly the measurements and like I said the actual sound preference is highly subjective matter like we all know.
I cannot get past class D's high frequency reproduction, which has always come inferior (lifeless) to good Class A/AB amps, but bass drivers and subwoofers the class D drives usually excellent controlwise. However weight and oomp factor of the lower registers may not be as high as with massive linear amps. Almost all class D design employ low pass filter at the output, which causes the upper end response to vary with different load impedances and it also causes phase shift, which is poison for transient response. Class D is however going forward fast... I have quite high hopes for Ncore, would be interesting to hear it.
I love the Pioneer SC-27 with IcePower Class D modules. I was listening to the Moody Blues - Days of Future Passed on SACD and was startled by the clarity of the highs.
I have been on a bit of a power conservation kick so I am favoring the high efficiency amplifiers.
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I have XPA-1's and I would put them on a very short list of power amps to consider under $3000-$4000..
The only amp that sonically sounds better (marginally) is the NAD M25 - and that's a multichannel. It's highs are so sweet and its bottom is almost right there with the XPA-1. Don't know how they do it. I'm a huge NAD fan. I'm surprised so few guys here have much of their offerings...
The M2 is in a league of its own. As a class D it combines a DAC and power amp and is one of the best amps I've heard albeit at 6K, not cheap.
To me, NAD is Emotiva on steroids...
My name is Ed..
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