Post by emotivauser102010 on Dec 26, 2010 14:49:26 GMT -5
I do not know if Emotiva wants such information posted here but it is useful info for owners. Please feel free to remove this thread.
Many had asked if XPA-1 can drive speakers with impedance below 4 ohms. Lonnie has responded with extremely useful information. I am reposting Lonnie's answers here.
PLEASE heed Lonnie/Emotiva's caution. Do not attempt anything dangerous. It will just ruin the experience for other owners if that causes Emotiva to clamp up its information flow.
SUMMARY - From Jul. 10th., 2008 by Lonnie:
Power output:
500 WRMS into 8 ohms
1000 WRMS into 4 ohms
1350 WRMS into 3.2 ohms
and we are not going to recommend this in any way shape or form but it will do 1.75K WRMS into 2 ohms (but you have to run 220 into it because a 110 v line will not supply enough juice).
THD+N is 0.00086%
Frequency response is from 10-150Khz (-3db) and 20-20Khz (>0.1db)
Oct. 20th., 2008 - CAUTION by Lonnie
Oh it [XPA-1] has no problem running at 2 ohm if you can get enough juice into the amp. But if your speakers dip down to 2 ohm, that is a cake walk for this beast.
We won't officially state it is 2 ohm stable (or post it's specs) because whatever impedance we state as the minimum, people will always want to push it and go even lower. So if we state 4 ohms and your speakers dip to 2, no problem. But if we were to state 2, I guarantee you many would want to run it at 1 ohm and you can't get enough juice (at least in a home) to support it.
For practical consideration, our XPA-1's drive Thiel CS3.7 and they have worked flawlessly for 2 months.
Many had asked if XPA-1 can drive speakers with impedance below 4 ohms. Lonnie has responded with extremely useful information. I am reposting Lonnie's answers here.
PLEASE heed Lonnie/Emotiva's caution. Do not attempt anything dangerous. It will just ruin the experience for other owners if that causes Emotiva to clamp up its information flow.
SUMMARY - From Jul. 10th., 2008 by Lonnie:
Power output:
500 WRMS into 8 ohms
1000 WRMS into 4 ohms
1350 WRMS into 3.2 ohms
and we are not going to recommend this in any way shape or form but it will do 1.75K WRMS into 2 ohms (but you have to run 220 into it because a 110 v line will not supply enough juice).
THD+N is 0.00086%
Frequency response is from 10-150Khz (-3db) and 20-20Khz (>0.1db)
Oct. 20th., 2008 - CAUTION by Lonnie
Oh it [XPA-1] has no problem running at 2 ohm if you can get enough juice into the amp. But if your speakers dip down to 2 ohm, that is a cake walk for this beast.
We won't officially state it is 2 ohm stable (or post it's specs) because whatever impedance we state as the minimum, people will always want to push it and go even lower. So if we state 4 ohms and your speakers dip to 2, no problem. But if we were to state 2, I guarantee you many would want to run it at 1 ohm and you can't get enough juice (at least in a home) to support it.
For practical consideration, our XPA-1's drive Thiel CS3.7 and they have worked flawlessly for 2 months.
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