|
|
Post by danny01 on Dec 25, 2014 1:44:13 GMT -5
I have a pair of XPA-1L with XSP1 preamp, and I am planning to purchase a pair of B&W CM10. Does anyone have experience with this setup and is the sound good ? I used to have a pair of 1L and xsp-1. I've heard the CM10, but not driven by Emotiva gear. Both Emotiva and BW CM series sound good. Go for it. Sent from my SM-P600 using proboards |
|
|
|
Post by jcam2881 on Dec 25, 2014 12:48:02 GMT -5
Gentlemen (and ladies if there are any here), I am considering either getting a pair of XPA-1L's or an XPR-2. I know you are probably thinking what a stupid question. One has almost three times the power of the other one. But I am not after power. I am looking for better sound (audibly so). My AVR rarely goes over -40dB. So, the XPA-1L's offer their advantages - separate power supplies, pure class A, etc. The XPR-2 is a reference line, so should be even better. To reiterate, I am looking for a sonic difference, a difference you can actually here. Keeping all that in mind - which would you buy. Check out also the new SA-250 (clean 400 wpc at 4 Ohm). Emotiva claims that its their best sounding amp at the moment, "nothing that they have at the moment can touch it" according to the podcast. It was designed to be the flagship model for a new high-end studio amp series. See the two SA-250 threads for more details. Anyways, I got one, and have been very happy. Drives my 3 Ohm Infinity RS-IIs effortlessly, and sounds fantastic  Having trouble deciding - newbie here -- my marantz receiver just isn't coming close to giving me what I want., have it setup with golden ear 7s for the fronts and my movie setup I have the golden ear super sat xl and the golden ear small surrounds. I am leaning towards a pair of xpa-1Ls for stereo and pairing w a xpa-3 for my movie setup..(also have a svs pc 12 ultra that I snuck in behind the bookcase when the lady was out :-)) I'm torn as I might eventually get the golden ear. Triton 1s.. And wasn't sure which route to go. Ie xpa-1? There is one option of picking up 3 xpa-1 gen 1 for a good value... Help? :-) Thanks |
|
|
|
Post by yessurf on Jan 5, 2015 15:25:44 GMT -5
I have got an issue with my XPA-1Ls.
One of the two has a brighter stand-by and power led. Is there any simple way to fix it?
|
|
|
|
Post by Gary Cook on Jan 5, 2015 16:29:10 GMT -5
I have got an issue with my XPA-1Ls. One of the two has a brighter stand-by and power led. Is there any simple way to fix it? Other than sending the dimmer one back to Emotiva? I have a pack of translucent stickers that I use to dim overly bright LED's, maybe you could try two stickers on the brighter one and one sticker on the other. That might even them up. www.lightdims.com/store.htm Happy New Year Gary |
|
|
|
Post by novisnick on Jan 5, 2015 19:37:58 GMT -5
I have got an issue with my XPA-1Ls. One of the two has a brighter stand-by and power led. Is there any simple way to fix it? OK! OK! OK! I hereby relinquish the title to my thread titled " Obsess Much " Thank you all!!  |
|
|
|
Post by Tungx2 on Oct 16, 2015 16:13:35 GMT -5
I just took the plunge to get the final monoblock of my setup.
I was toying the idea of having:
3 - xpa-1 G2 for fronts and center
2 - xpa-100 for the surrounds
I guess i'll just go with the least expensive option (especially with the special sale and eclub discount)
I ended up with this
2 - xpa-1 g2 for fronts (already have)
1 - xpa-1L g2 for center (just ordered)
2 - xpa-100 g2 for surrounds (already have)
I hope Xpa-1L and xpa-1 play nicely together.
|
|
|
|
Post by novisnick on Oct 16, 2015 20:06:57 GMT -5
I just took the plunge to get the final monoblock of my setup. I was toying the idea of having: 3 - xpa-1 G2 for fronts and center 2 - xpa-100 for the surrounds I guess i'll just go with the least expensive option (especially with the special sale and eclub discount) I ended up with this 2 - xpa-1 g2 for fronts (already have) 1 - xpa-1L g2 for center (just ordered) 2 - xpa-100 g2 for surrounds (already have) I hope Xpa-1L and xpa-1 play nicely together. Id love for you to compare the -1s to the -1Ls for stereo driving your mains and tell us your thoughts! |
|
|
|
Post by novisnick on Oct 11, 2016 22:48:09 GMT -5
Without reading 82 pages of threads, does anybody have any history of electrostatic speakers driven by XPA-1Ls? Id like to know about this combination. Thanks
|
|
|
|
Post by leonski on Oct 11, 2016 23:24:04 GMT -5
No matter HOW you slice it, 'Stats represent an awful load at high frequencies. Impedance drops and the phase angle can approach 60 degrees or more. www.stereophile.com/content/martinlogan-montis-loudspeaker-measurements#MgXtqKWiqQCAmsm8.97Measurement results from Stereophile test of the ML Montis. Phase angle APPROACHES 90 degrees (no power delivered) at low frequencies while at high frequencies of 10khz and above, the impedance is below 2ohms AND the phase angle is over 67 degrees. ANY partnering amp will have trouble with this awful load. Buy with the 30 day or whatever 'right of return' and USE it if the amps act up at all. Than, spend some time with your DEALER finding out about amps which are capable of handling your 'Stats. When you BOUGHT your 'stats, what amp were they partnered with? You MIGHT end up with an older model of Krell, Pass or a few others which seem capable of handling 'Stats without going into meltdown. |
|
|
|
Post by Boomzilla on Oct 12, 2016 13:52:21 GMT -5
Older stat-speakers had those problems. Newer ones, not so much. Here's a plot for an older ML Arieus (dotted line is impedance, left axis is ohms):  (Stereophile - 1993) The newer MLs are even more benign. AND one has to ask - how much information is that high a frequency? How much wattage is the amp asked to produce at that high a frequency? The answers, respectively, are Little & None. Therefore the impedance and phase angle are largely academic. |
|
|
|
Post by garbulky on Oct 12, 2016 14:01:36 GMT -5
If the dotted line is impedance then it looks liike the aerius is 100 degrees out of phase at around 50 to 90 hz. Unusual
|
|
|
|
Post by garbulky on Oct 12, 2016 14:05:59 GMT -5
Older stat-speakers had those problems. Newer ones, not so much. Here's a plot for an older ML Arieus (dotted line is impedance, left axis is ohms): (Stereophile - 1993) The newer MLs are even more benign. AND one has to ask - how much information is that high a frequency? How much wattage is the amp asked to produce at that high a frequency? The answers, respectively, are Little & None. Therefore the impedance and phase angle are largely academic. Ah this makes more sense. www.stereophile.com/content/klipsch-palladium-p-39f-loudspeaker-measurements#Eeydv2uoQDVtimJR.97According to stereophile the solid line is impedance and the dotted is phase. So the impedance for the aerius drops below 2 ohms at the high frequencies. Here's one from their Palladium Klipsch measurements |
|
|
|
Post by leonski on Oct 12, 2016 18:33:19 GMT -5
While it is possible to minimize such weird numbers, one thing we can't predict is amplifier / speaker interactions. It is possible to destroy an amp when it goes into oscillation.
In the speaker, above, the Klipsch Palladium, I don't see any Electrical problems. The ONLY thing i"d look at twice is where Impedance crosses phase about about 80hz. This is not bad, though, since it is at 4ohms and maybe 50 degrees.
People wrongly get hung up on impedance as good / bad 'load'. Some will go so far as to drag sensitivity into it. But the real killer is when you have a low impedance minima AND a high phase angle occuring at the same frequency.
That's why the ONE thing few manufacturers will disclose is the amps performance into highly reactive loads. I've floated the idea of a REAL dummy speaker load to the EMO guys without much traction. NO speakers are resistive and you NEVER get the power you buy.
The ML Montis I linked was from 2012, not exactly the dark ages. Physics Rules. Impedance is below 2 ohms from about 8khz UP. The impedance minima is about 1/2 OHM. That' 0.5ohm for those living in Scranton. The good news is that at that particular frequency, the panel is nearly purely resistive.
At the SAME time, the phase angle is 60 degrees or greater up to about 200hz. That is in woofer area and has a lot of energy.
It IS true that maybe 10% of all musical energy exists ON AVERAGE above maybe 10khz. This is what makes it possible. But do NOT forget that amps Have been driven into destructive oscillation by such weird loads.
|
|
|
|
Post by Gary Cook on Oct 12, 2016 18:42:01 GMT -5
Maybe a question for Keith, but I have tried an XPA-1L at very low impedance (looking for an issue for a Emotiva customer), down around 1 ohm, and it tripped into protection mode well before any oscillation.
Cheers
Gary
|
|
|
|
Post by leonski on Oct 12, 2016 21:09:19 GMT -5
Yes, Gary, it'll protect at 1 ohm or less. What was the REACTANCE of the presented load? Try the same 1ohm with alternately 60 degrees capitative than 60 degrees inductive.
|
|
|
|
Post by leonski on Oct 19, 2016 2:02:20 GMT -5
|
|
|
|
Post by Boomzilla on Oct 19, 2016 6:42:36 GMT -5
...I have a pack of translucent stickers that I use to dim overly bright LED's... Gary Do they make the inverse of these? I want to put some on the forehead of a certain niece to make her a bit brighter! |
|
|
|
Post by richtx6 on Oct 10, 2018 20:54:54 GMT -5
Without reading 82 pages of threads, does anybody have any history of electrostatic speakers driven by XPA-1Ls? Id like to know about this combination. Thanks I have owned the xpa 1's for 7 years with my Martin Logan SL3's which I've had for 21 years. During the 21 years I've owned my ML's I have gone thru a bunch of amps and after finding the xpa 1's I was hooked. They have been perfect and give me all the power and sound quality I have been looking for. With that being said I think the early generation of mono's, which are what I have, are the best because of the Class A and the reserve power that large cap's and shear raw power deliver. The new amps, Differential amps with their slip in power boards, may just not cut the mustard. Just my opinion. |
|
|
|
Post by pedrocols on Oct 11, 2018 10:57:39 GMT -5
Without reading 82 pages of threads, does anybody have any history of electrostatic speakers driven by XPA-1Ls? Id like to know about this combination. Thanks I have owned the xpa 1's for 7 years with my Martin Logan SL3's which I've had for 21 years. During the 21 years I've owned my ML's I have gone thru a bunch of amps and after finding the xpa 1's I was hooked. They have been perfect and give me all the power and sound quality I have been looking for. With that being said I think the early generation of mono's, which are what I have, are the best because of the Class A and the reserve power that large cap's and shear raw power deliver. The new amps, Differential amps with their slip in power boards, may just not cut the mustard. Just my opinion. It seems that you are two years late for the party pal. |
|
