Deleted
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Post by Deleted on Dec 23, 2015 15:46:45 GMT -5
Yes I know read the manual! But since I'm lazy I will just ask....I recently went to two(2) XPA-2 Gen2s that I bridge for my fronts and last night I was feeling a bit giddy and may have turned the volume a scoosh too high and got flashing red/amber lights can anyone fill me in on what I did? I shut it down at the rear switch and it powered back up...I suspect I drove them a bit too much...I checked my Def-techs and thankly no damage there so any words of encouragement would be awesome...Thanks in advance,
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DYohn
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Post by DYohn on Dec 23, 2015 15:54:27 GMT -5
You overloaded them. They protected themselves, just like they were supposed to. Sounds to me like your loudspeakers impedance dipped too low for the amps. Hopefully you did not overdrive the loudspeakers to the point of creating voice coil misalignment.
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Deleted
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Post by Deleted on Dec 23, 2015 16:01:55 GMT -5
Ummm You lost me at coil misalignment but I will say they (speakers) are 8ohm (Nominal that is...) here are the specs...It was an instant before I realized what I had done:
Audio Inputs
Speaker Level 2 Pair (Bi-wire Ready)
LFE (optional) 1
Maximum Sensitivity
1 watt @ 1 Meter 92 dB
Total Frequency Response
Overall 11 Hz - 30 kHz
Nominal Impedance
Compatible with 8 ohm
Crossover
A/V Receiver Crossover Setting Large; Full Bandwidth
Power Handling 20 - 1000 watts per channel
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bootman
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Typing useless posts on internet forums....
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Post by bootman on Dec 23, 2015 18:39:38 GMT -5
Bridging/doubling the power only gets you 3Db more headroom and yet presents a 4ohm load (vs 8 originally) to the amp so you run out of gas quicker.
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Post by audiobill on Dec 23, 2015 18:42:32 GMT -5
You overloaded them. They protected themselves, just like they were supposed to. Sounds to me like your loudspeakers impedance dipped too low for the amps. Hopefully you did not overdrive the loudspeakers to the point of creating voice coil misalignment. I first read "creating" as "cremating" !! |
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DYohn
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Post by DYohn on Dec 23, 2015 18:46:30 GMT -5
You overloaded them. They protected themselves, just like they were supposed to. Sounds to me like your loudspeakers impedance dipped too low for the amps. Hopefully you did not overdrive the loudspeakers to the point of creating voice coil misalignment. I first read "creating" as "cremating" !! Well, in a worst case scenario "cremating" might be accurate.  |
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Post by leonski on Mar 4, 2016 2:28:35 GMT -5
I have only RARELY heard it said that bridged even sounds as good as NOT. Never better.
And, key is the word 'nominal' when talking impedance. An 8ohm 'nominal' speaker may dip below 4 ohms and rise about 12 or even HIGHER at resonance. Factor the reactance of the speaker, and that may mean trouble.
If the impedance really dips at the SAME frequency as the reactance (capacitive or inductive) goes real high, than all but the most robust amps could have problems.
Let's hope it doesn't come to 'cremating'. in ANY sense of the word.
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