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Post by RightinLA on May 11, 2014 19:00:45 GMT -5
The XPA-1 FARTS on 3-ohm loads! I've never seen my XPA-1's do that! Mind you they are only Gen. 1 units. Do the Gen. 2 units have the extra "port" to allow this additional capability? |
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Post by garbulky on May 11, 2014 19:54:21 GMT -5
The XPA-1 FARTS on 3-ohm loads! I've never seen my XPA-1's do that! Mind you they are only Gen. 1 units. Do the Gen. 2 units have the extra "port" to allow this additional capability? I heard it only does it if it is fully balanced from end to end. Usually when it switches from class A to A/B. Since they are high quality in nature, the event is actually inaudible. The way to tell that it happened (who did it?) is that the XPA-1 looks slightly embarrassed. Here is an illustration: Before the event  After the event  It is subtle but you can see that the XPA-1 has blushed a darker color. It's also slightly smaller. |
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Post by audiosyndrome on May 11, 2014 20:50:02 GMT -5
I know someone who is selling a JL 12W7 in the JL box really cheap locally but I am not really into car audio anymore these days so I was thinking of maybe putting it to home theater duty but it is a 3ohm sub. I was curious what your guys thoughts are on if the XPA-1 would tolerate a 3ohm load? (I know officially it supports down to 4ohm but I was curious if anyone has tried) yes it can From the XPA-1 product page- Minimum Recommended Load: 4 ohms So no it can't or shouldn't. Have two friends who sent back their XPA-2s because they could not drive their line-souce woofer modules, two ohms in both cases but otherwise they said "it sounded great". Russ |
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Post by garbulky on May 11, 2014 21:48:44 GMT -5
From the XPA-1 product page- Minimum Recommended Load: 4 ohms So no it can't or shouldn't. Have two friends who sent back their XPA-2s because they could not drive their line-souce woofer modules, two ohms in both cases but otherwise they said "it sounded great". Russ Lonnie (chief designer) mentioned that the XPA-1 is stable into 2 ohm loads. It does something like 1800 watts at 2 ohms and near that voltage sag from the wall may be encountered. He also mentioned that a few of the x-series amps are stable into 2 ohm loads as well. It's not officially supported as he doesn't want people sticking in 1 ohm loads and complaining. |
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Post by audiosyndrome on May 12, 2014 11:35:42 GMT -5
Garbulky- good input. Thanks.
Russ
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