Never damaged a speaker...

[respice finem]

Maybe this cord is the fuse

 

[kyuu]

C'mon guys, just read the listing. Don't put a load of more than 4A between those 66 devices and it'll be fine, geez. I mean that gives you a whopping 60mA to play with for each device!

 

[dualazmak]

In case of PC-DS-based multichannel multi-SP-driver multi-amplifier fully active audio setup, the possibility of SP damaging would be higher than single-amp passive system as you can easily guess, even though I never destroyed my treasure SP drivers.

My counter measures are;

1. Use protection capacitors for treasure midranges, tweeters, and super-tweeters. (You need to objectively measure their transparencies in working Fq-zone.)

2. Always perform careful ignition/startup sequences and shutdown sequences (at least for me, I hate triggered simultaneous ON/OFF of my audio gears).

3. Use proper pro-grade crimping tool and heat-shrink insulator cover whenever/wherever possible, especially in SP high-level signals.

4. Annual or semi-annual complete cleaning of all the metal-to-metal contacts using pure isopropyl alcohol.

5. Do not change any gain/volume value in DSP software by numerical keyboard input at least while listening-to-music; use mouse-wheel rotation of granularity 0.1 dB or 0.2dB for gain change, if available.

6. Analog output gain dial/volume in multichannel DAC should be usually "untouchable" after optimal setting has been determined.

7. At least in my case, I prefer further analog-level gain/volume control by pre-amplifiers or integrated-amplifiers after multichannel DAC for safe and flexible relative gain control among the SP drivers.

8. Annual or semi-annual "intensive health check" procedures for all of the DSP-software, multichannel DAC, amplifiers, protection capacitors, as well as SP drivers, through Fq-SPL measurements of amplifiers' SP-high-level outputs before/after protection caps, and of course Fq-SPL measurements of room air sound at least at your listening position.

9. and so on...

You can find almost all of the details in my post #931 (the latest setup) and in my recent post #1,009, on my project thread.

 

[RayDunzl]

Blew Peavey compression drivers for the "tweeters" on the PA rack back in 1980 or so a couple of times.

Overdriven (125W amp) with (maybe) too low a crossover to the JBL mids cabinet.

Don't remember anything blown anywhere else.

 

[Colin5619]

I never have but one of my sons did. Went out for a walk, came home,listened to some music, heard horrible distortion. Bass driver fried. Looked at the NAD amps settings, Loudness switch was set in and Bass control on full. He denied listening loud, spoke to my neighbour the next day, he reported your stereo was extremely loud last night.

 

[xanalog]

PC-DS-based multichannel multi-SP-driver multi-amplifier fully active audio setup

If that is not a word-salad (of the non-political kind), I'll do like Zappa and eat what's in that hat!

 

[Gibsonian]

Blown a few tweets and woofs, can’t say I’ve ever toasted a midrange. Launched a 15” AE driver with 14 mm Xmas outward so far it got stuck out and then it fried. Many more tweets than woofs. Hearing not great but typical for my age, am lucky

 

[EJ3]

View attachment 459792

It's only rated for 900 watts (4 AMPS), but I would not do that much even.
2 decent wall warts & you're overloaded.
I think the word "Fire" is the important word here.

 

[EJ3]

Maybe this cord is the fuse

Perhaps the cord is a fusible link?

 

[EJ3]

Anyone wants to fix this tweeter?
View attachment 458881

The "B" stands for Brittle.

 

[Petrushka]

I used to think that crossovers should be made with fuses as part of the functional design.

 

[xanalog]

The "B" stands for Brittle.

Are you sure that the "B" does not stand for Booger?

 

[EJ3]

Are you sure that the "B" does not stand for Booger?
View attachment 459831

Dried Boogers are Brittle, so maybe...
And (like Booger's): don't lick it.

 

[mhardy6647]

Maybe this cord is the fuse

 

[Dialectic]

I blew a midrange in a very expensive Genesis loudspeaker while listening to Stravinsky at moderate volumes. A bass drum strike did the damage.

The driver was both essentially non-fixable and out of production.

Sold the pair of speakers on a "for parts only" basis.

 

[sceptical1]

Most speakers, even tweeters, can handle hundreds of watts short term. The only driver I managed to ruin was a 6.5 in. in sealed .5cu. box. I can speculate that the voice coil deformation on that driver was attributed to heat and no way for it to escape. Everything else I have had even when driven for hours from a hard clipping amp worked fine.

 

[EJ3]

I used to think that crossovers should be made with fuses as part of the functional design.

Or resettable relays.

 

[EJ3]

View attachment 460012

Trying to put the smoke back in is quite difficult, too!

Maybe it was the wrong kind of smoke?

 

[mhardy6647]

Trying to put the smoke back in is quite difficult, too!
...
Maybe it was the wrong kind of smoke?

Nope, same kind.
That might be six volt smoke, though.
Possibly even positive ground smoke -- chockablock with positrons.

Trust but verify.

 

[Anton S]

@EJ3 Love the "Lucas Service Part!" Back when many British cars had Lucas electricals, most of those bore bumper stickers that read:

Why do the Brits Drink Warm Beer?
Because They Own Lucas Refrigerators