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Post by subsolar on Mar 12, 2013 15:14:21 GMT -5
I have a pair of Martin Logan Theos on order. Will two XPA-1's be good for to power these? The Theos can go down to 0.8 ohm, want to know if the XPA-1 can handle it. I can't even find anywhere if it could handle 2 ohm.
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Post by garbulky on Mar 12, 2013 15:18:57 GMT -5
It does handle 2 ohms. But the rating is not given. But not rated for 1 ohms. That is a good question. I would call emotiva and speak to lonnie or keith. Their phone lines are the best option.
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Post by Cory Cooper on Mar 12, 2013 15:21:56 GMT -5
The XPA-1 can handle the 4Ω load of the ML Theos easily. They are rated at 4Ω (nominal impedance). The 0.8Ω figure you see in the specs is only at 20kHz...basically that speaker's minimum impedance. The impedance of all speakers varies over the entire frequency range.
I agree with garbulky, call Emotiva directly if you really want to make sure.
C
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Post by subsolar on Mar 12, 2013 16:31:42 GMT -5
OK, I'm currently debating between the XPA-1 and Crown XLS 2500. Thoughts on these two for my speakers?
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Post by garbulky on Mar 12, 2013 16:36:38 GMT -5
If emo signs off on the xpa-1 with the theos, I would side with the xpa-1. Remember their ratings are all channels driven.
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Post by mg on Mar 12, 2013 17:55:11 GMT -5
Had the 1's with a pair of vantage and I can say it was a good match.
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Post by ocezam on Mar 12, 2013 23:48:53 GMT -5
OK, I'm currently debating between the XPA-1 and Crown XLS 2500. Thoughts on these two for my speakers? The Crown is a class D pro amp, and has a fan to cool it. I've read a lot about it in the last couple weeks because I was considering it for a subwoofer amp. In pro amps the fan can be quite loud and can detract from the music/movies if the amp is in the same room as the speakers. The Crown your looking at was reported to be a "quiet" pro amp with a lot of people saying they weren't even sure if their fan ever even came on. For me, the chance of a running fan while I am listening to music is a deal breaker. I wouldn't even consider that amp for two channel. The class D aspect of the Crown would also deter me. I won't get into that debate here, and I'll concede that by most accounts, class D has been getting lots better in the last few years. I'd buy the XPA-1's in a heartbeat. They are a world class amp IMHO, and a true value! |
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Post by rtg97229 on Mar 13, 2013 0:07:46 GMT -5
I would go with the XPA-1's. That is likely what I will be getting for my electrostats after I buy a house.
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Post by subsolar on Mar 13, 2013 15:22:17 GMT -5
What about the xpr-2 instead? Does it require a 20 ap outlet, cause I lived in an apartment now. Would this handle the sub 1 ohm better than two xpa-1's? Which would sound better?
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Post by rohrej on Mar 13, 2013 15:30:36 GMT -5
My XPR-5 works fine with an adapter on a 15-amp circuit in my apartment, never draws more than a few amps. I'm sure the XPR-2 would be fine as well. As to which would sound better, that is a question I'm very interested in as well.
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Post by chaosrv on Mar 13, 2013 15:52:44 GMT -5
I have a pair of Martin Logan Vistas...very similar to the Theos in most respects. The radiating area is about 8% smaller on the Vistas compared to the Theos. The Vistas only dip down to 1.2 Ohms vs the 0.8 of the Theos at 20 kHz.
I run them with a single XPA-2 and I'm thoroughly in love with them. They run plenty loud without issue. I do, however, intend to migrate them over to a pair of XPA-1L's in the coming months.
Basically - you should have zero issues. How big is your listening area?
If you are concerned with power, an XPR-2 would give you the same as a pair of XPA-1's while taking up half the space plus give you the 29db gain rather than the XPA-1's 32db.. for for $1 more than two XPA-1's. Though you would whatever advantage you may see from running monoblocks...and the XPR-2 would prefer a 20 amp circuit.
If you don't play at ear-bleeding levels or don't have a huge space, go for the XPA-2 or a pair of XPA-1L's.
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Post by brubacca on Mar 13, 2013 16:01:46 GMT -5
Get the XPA-1L amps. 500W into 4 ohm. These look to be something special. Actual test data shows over 550W into 4 ohm.
Would be great and save you a couple of bucks over the XPA-1. In fact, XPA-1 looks to be overkill at 1,000W into 4 ohm.
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Post by ocezam on Mar 13, 2013 16:36:07 GMT -5
Get the XPA-1L amps. 500W into 4 ohm. These look to be something special. Actual test data shows over 550W into 4 ohm. Would be great and save you a couple of bucks over the XPA-1. In fact, XPA-1 looks to be overkill at 1,000W into 4 ohm. No such thing as overkill. Biggest myth in all the world I think. ... |
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Post by davidas6350 on Mar 13, 2013 16:41:55 GMT -5
^ Agreed... My XPA-1 started showing red LEDs when I did a quick test on how loud my LSi15 will get on reference volume (0) on the XSP-1.
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Deleted Member
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Post by Deleted on Mar 13, 2013 16:49:27 GMT -5
>> No such thing as overkill. Biggest myth in all the world I think. <<
Bollocks. Jack a coupla K-Horns into those monster amps and you will *never* exceed 75 watts/ch. Unless, of course, you really enjoy blood running out of your ears...
-RW-
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Post by ocezam on Mar 13, 2013 16:52:43 GMT -5
>> No such thing as overkill. Biggest myth in all the world I think. << Bollocks. Jack a coupla K-Horns into those monster amps and you will *never* exceed 75 watts/ch. Unless, of course, you really enjoy blood running out of your ears... -RW- Never liked horn loaded speakers. Sorry You and I will never agree on this subject. You have an aversion to high powered amps, and my taste in speakers is 180 degrees out of phase (pun intended) with yours. ... |
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Post by monkumonku on Mar 13, 2013 17:24:54 GMT -5
Get the XPA-1L amps. 500W into 4 ohm. These look to be something special. Actual test data shows over 550W into 4 ohm. Would be great and save you a couple of bucks over the XPA-1. In fact, XPA-1 looks to be overkill at 1,000W into 4 ohm. So where exactly do you draw the line between kill and overkill? 1,000 watts is a lot of watts but then so is 550.  |
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Post by subsolar on Mar 13, 2013 17:40:31 GMT -5
I've heard Martin Logans are power hungry so you can never have enough juice. I want all the power I can get as cheaply as I can, not going to get $5,000 McIntosh monoblocks like they have at Magnolia!
By the way, seems like both Emotiva and Martin Logan manuals say to get 8 to 10 gauge speaker wire. Where are you guys getting these? Saw some on eBay and Amazon, but they're not super popular.
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Post by ocezam on Mar 13, 2013 18:09:32 GMT -5
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Post by subsolar on Mar 13, 2013 18:47:05 GMT -5
Yeah, I was looking at those on Amazon, have you used them? |
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