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My friend has a Primaluna integrated amp with 32 W/ch in UL mode. He's using it to power 83 dB sensitive, Eminent Technology LFT-8b speakers that according to their own website require 75 W/ch minimum. Last night while playing music he heard a loud POP in one of his channels. So he turned everything off. Then turned everything back on and all appears well. But he's concerned and as I'm not technically adept at audio we have two questions:
1) What do you guys think the POP was?
2) Do you think his 83 dB, 75 W/ch min. speakers will eventually damage his 32 W/ch, tube integrated?
TIA to all who choose to help...
I'm listening to: Strawberry Fields Forever by Daria
Thetubeguy1954 (Tom Scata)
Central Florida Audio Society -- SETriodes Group -- Space Coast Audio Society
Full-range/Wide-range Drivers --- Front & Back-Loaded Horns --- High Sensitivity Speakers
Follow Ups:
# 1 - Was he listening to vinyl at the time.
# 2 - No, I think your more likely to damage the speakers .
32 watts into a 83 db speaker isn't ideal but at a modest to moderate sound level shouldn't be a problem. Now if he's letting snap, well ?
Maybe it was just some stray static discharge.
Something to keep an eye on I guess.
I'm not sure what the pop would be. Could he tell if the pop was speakers or from the amp? If speakers, I'd guess you heard clipping, most times tube amps don't tend to clip that hard. I heard a pop from a woofer one time but I was driving a 6" driver way too hard with heavy bass content, I don't think that's your case. :)
If the speakers are under powered it would more likely cause damage to the speakers than the amp. He probably isn't hearing all the speakers are capable of either. If he isn't driving the amp hard, like past 12 o'clock, then the only drawback should be he may not be hearing all the speakers are cabale of, it shouldn't damage anything. Unless possibly an impedance mismatch where the amp may not handle the speaker having a lower impedance.
I'm trying to say under powering typically is just more of a performance type issue opposed to something may break, keeping the gear within their performance boundaries.
M3 lover is correct. Probably a better chance of damaging the speakers than the amp. That said, the component combination mentioned sounds likes a bad marriage to me unless your friend listens to simple music at low volumes. Even then I'd say 100 watts tube or 200 watts solid state minimum for the ET's.
I'd contact ET rather than guess.
This may not help but there is old audio wisdom that more speakers are damaged by under powered amps than those with too much power.
"The piano ain't got no wrong notes." Thelonious Monk
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