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Post by lhracing on Dec 21, 2014 17:49:29 GMT -5
I tried searching this but could not come up with anything. Do any of the Emotiva amplifiers have clip sensing with an indicator to notify you as such?
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Post by garbulky on Dec 21, 2014 17:51:49 GMT -5
The XPA-2, XPA-1, XPR series have indicator lights. When it gets to its maximum then you can consider it close or near clipping.
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Post by lhracing on Dec 21, 2014 18:04:49 GMT -5
Thank you for the reply. I just ordered a pair of the XPA-1L amps, do you know if they have something similar?
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Post by garbulky on Dec 21, 2014 18:24:04 GMT -5
Thank you for the reply. I just ordered a pair of the XPA-1L amps, do you know if they have something similar? I don't think the XPA-1 L has clipping indicators. I don't know of anything smaller that does. |
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Post by cheapthryl on Dec 21, 2014 20:14:34 GMT -5
My RPA-1's do
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Post by Jim on Dec 21, 2014 21:23:52 GMT -5
I think it's fair to say that any Emotiva amp that does have a led bar graph - or analog does indicate clipping.
Any amps that only have a channel led do not (Xpa-3, 5,7 - most UPA amps). The single LED just indicates on or a fault.
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Post by lhracing on Dec 21, 2014 21:36:39 GMT -5
A few years ago I had an Adcom amp with clipping indicators. It was a smaller amp (100 watt) so it was fairly easy to make it clip and I thought it was a nice feature to help me protect my speakers. I was hoping the XPA-1L had had this feature.
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Post by leonski on Dec 22, 2014 3:34:45 GMT -5
With all due respect, I'd suggest LISTENING. Roughness / harshness of sound means turn it down. You should KNOW what distortion sounds like and be sensitive to it. Keep the remote out of the hands of idiots.
Also, as speakers WARM UP….and boy, do they, especially when driven hard and to the limits, they CHANGE both mechanically and electrically. That's one of the BIG differences between home speakers and professional stuff, mainly 'sound reinforcement'' speakers. The pro stuff will take a beating and continue. Home speakers? not so much.
I've never destroyed a woofer, but have had a few MIDRANGE problems, many years ago with inexpensive speakers.
My Magnepans don't distort like box speakers, but you KNOW you are at the limits when you start hearing 'mylar slap'. The 4 amp mid/tweet fuse is nearly worthless since it requires a continuous current to pop.
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Post by pedrocols on Dec 22, 2014 10:08:44 GMT -5
With all due respect, I'd suggest LISTENING. Roughness / harshness of sound means turn it down. You should KNOW what distortion sounds like and be sensitive to it. Keep the remote out of the hands of idiots. Also, as speakers WARM UP….and boy, do they, especially when driven hard and to the limits, they CHANGE both mechanically and electrically. That's one of the BIG differences between home speakers and professional stuff, mainly 'sound reinforcement'' speakers. The pro stuff will take a beating and continue. Home speakers? not so much. I've never destroyed a woofer, but have had a few MIDRANGE problems, many years ago with inexpensive speakers. My Magnepans don't distort like box speakers, but you KNOW you are at the limits when you start hearing 'mylar slap'. The 4 amp mid/tweet fuse is nearly worthless since it requires a continuous current to pop. That is why I removed the fuse...  |
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Post by vcautokid on Dec 22, 2014 10:27:23 GMT -5
The XPA-2, XPA-1, XPR series have indicator lights. When it gets to its maximum then you can consider it close or near clipping. Also keep in mind at least in the Gen 1 XPA 1 and 2 for instance uncertain of the Gen 2 or XPR, the meters are calibrated operating nominally under an 8 ohm load. A 4 ohm load nominally you double the value of lamps shown. The XPR and the larger XPA amplifiers have tremendous reserves. I can't see yourself getting into any clipping with judicious full listening. The bigger XPR, and XPA amplifiers are built with power to spare, and will drive just about any speaker with control, and authority. Enjoy. |
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Post by leonski on Dec 22, 2014 11:36:47 GMT -5
When asked, I recommend leaving the fuse IN for a year or so. It at least provides minimum protection. After that? You can either replace the fuse with a piece of #4 copper OR pull the connection panel and move some connections around. Moving the connections is best, since you can actually simplify the wiring while eliminating excess wire/connections/fuse+holder.
Fuse in for a year, you say? Yes, for 2 main reasons. 1. = Warranty and 2. = Get to know the sound
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Post by lhracing on Dec 22, 2014 12:06:48 GMT -5
The XPA-2, XPA-1, XPR series have indicator lights. When it gets to its maximum then you can consider it close or near clipping. Also keep in mind at least in the Gen 1 XPA 1 and 2 for instance uncertain of the Gen 2 or XPR, the meters are calibrated operating nominally under an 8 ohm load. A 4 ohm load nominally you double the value of lamps shown. The XPR and the larger XPA amplifiers have tremendous reserves. I can't see yourself getting into any clipping with judicious full listening. The bigger XPR, and XPA amplifiers are built with power to spare, and will drive just about any speaker with control, and authority. Enjoy. Thanks for the update. Clipping indicators may be more useful on smaller amplifiers. This is because musical peaks can cause the output voltage to go at or nearly at the power supply voltage at moderately high listening levels. Indicators can warn you of this condition at levels long before you can actually hear distortion. |
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Post by leonski on Dec 22, 2014 16:44:57 GMT -5
At some point it may actually be easier to purchase More Sensitive speakers. 3db would be like buying a 2x more powerful amp, all other things being equal. Of course, high sensitivity speakers, even if free, wouldn't do you much good if you simply didn't like 'em!
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Post by lhracing on Dec 22, 2014 17:21:46 GMT -5
The speakers are 90db 1w/1m so they are fine and will play very loud with a XPA-200 and the XPA-1L's I have on order will have a little more kick. The clipping indicators were a feature the I liked on the Adcom amps and I was just wondering if Emotiva had the same feature.
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geebo
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Post by geebo on Dec 22, 2014 17:30:27 GMT -5
Thank you for the reply. I just ordered a pair of the XPA-1L amps, do you know if they have something similar? The XPA-1Ls have no clipping indicators but they sound just wonderful. |
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Post by garbulky on Dec 22, 2014 17:34:23 GMT -5
Hi iracing, you're in the realm of big boy amps. Chances are (unless you are insane), you won't have to worry about clipping but more about your ears running out!
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Post by lhracing on Dec 22, 2014 17:41:53 GMT -5
Hi iracing, you're in the realm of big boy amps. Chances are (unless you are insane), you won't have to worry about clipping but more about your ears running out! I am sure this is true. This was more a question of curiosity rather than necessity. |
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Post by knucklehead on Dec 22, 2014 17:54:31 GMT -5
I have an Adcom GFA 535 stereo amp with clipping indicator lights. Its only 60wpc but it takes louder levels than I care to listen at to make them lights turn on.
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Post by Jim on Dec 22, 2014 18:49:25 GMT -5
Hi iracing, you're in the realm of big boy amps. Chances are (unless you are insane), you won't have to worry about clipping but more about your ears running out! Did I hear my name? Insane?  |
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