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Topic:
Episode LS subs not waterproof
This thread has 40 replies. Displaying posts 31 through 41.
Post 31 made on Thursday August 15, 2019 at 18:23
King of typos
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I believe the motor (magnetic side) is installed on the side that is ported to topside for ventilation. If it were installed on the other side, it wouldn’t be able to cool off as that side is (suppose to be) completely sealed off. Besides, it wouldn’t matter as the speaker is thrusted in both directions. Remember you’re dealing with audio which is AC to a speaker.

But I think these problem subs were built on a Friday and the employees wanted to go home. 🙂

KOT
Post 32 made on Thursday August 15, 2019 at 20:29
tomciara
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They don’t have Fridays in China.
"Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing ever happened." - Winston Churchill
Post 33 made on Thursday August 15, 2019 at 20:46
edizzle
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On August 15, 2019 at 18:23, King of typos said...
I believe the motor (magnetic side) is installed on the side that is ported to topside for ventilation. If it were installed on the other side, it wouldn’t be able to cool off as that side is (suppose to be) completely sealed off. Besides, it wouldn’t matter as the speaker is thrusted in both directions. Remember you’re dealing with audio which is AC to a speaker.

But I think these problem subs were built on a Friday and the employees wanted to go home. 🙂

KOT

ive seen more bandpass boxes with the drivers motor structure in the sealed portion than in the ported version. im not sure about your ventilation theory. not to mention it stays pretty cool a foot down, at least in most soil.
I love supporting product that supports me!
Post 34 made on Thursday August 15, 2019 at 21:30
King of typos
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On August 15, 2019 at 20:46, edizzle said...
ive seen more bandpass boxes with the drivers motor structure in the sealed portion than in the ported version. im not sure about your ventilation theory. not to mention it stays pretty cool a foot down, at least in most soil.

It’s actually in the literature of this sub...

“ Low-Heat Design*
Our inverted band-pass design puts the woofer’s voice coil and magnet on the ported side of the cabinet. This provides a constant flow of fresh air, which keeps things cool for trouble-free performance. *Applies to 12" only.”

[Link: snapav.com]

KOT
Post 35 made on Friday August 16, 2019 at 08:58
Duct Tape
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On August 15, 2019 at 21:30, King of typos said...
It’s actually in the literature of this sub...

“ Low-Heat Design*
Our inverted band-pass design puts the woofer’s voice coil and magnet on the ported side of the cabinet. This provides a constant flow of fresh air, which keeps things cool for trouble-free performance. *Applies to 12" only.”

[Link: snapav.com]

KOT

Translation:  We screwed up when designing the enclosure and the cutout for the driver was too small of a diameter, so we inverted the sub to move these POS's.
[Link: facebook.com]
Post 36 made on Friday August 16, 2019 at 15:37
tomciara
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On August 16, 2019 at 08:58, Duct Tape said...
Translation:  We screwed up when designing the enclosure and the cutout for the driver was too small of a diameter, so we inverted the sub to move these POS's.

Seems like a liberal application of Duct Tape should fix everything.
"Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing ever happened." - Winston Churchill
Post 37 made on Friday August 16, 2019 at 18:52
ichbinbose
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It’s funny that my James/sonance rep pointed this design flaw out years ago.
In general he was always a straight shooter. I just always wondered if it was an actual issue. Guess it was/is.
Just goes to show a good rep can be very beneficial to your business.
Post 38 made on Friday August 16, 2019 at 23:53
edizzle
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On August 15, 2019 at 21:30, King of typos said...
It’s actually in the literature of this sub...

“ Low-Heat Design*
Our inverted band-pass design puts the woofer’s voice coil and magnet on the ported side of the cabinet. This provides a constant flow of fresh air, which keeps things cool for trouble-free performance. *Applies to 12" only.”

[Link: snapav.com]

KOT

Well there you go. that makes no sense!! Open the motor structure to moisture and humidity to keep it cool!! Weird
I love supporting product that supports me!
Post 39 made on Saturday August 17, 2019 at 09:00
highfigh
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On August 16, 2019 at 23:53, edizzle said...
Well there you go. that makes no sense!! Open the motor structure to moisture and humidity to keep it cool!! Weird

This kind of thinking is why we can't have nice things.

As Tom Waits wrote in 'Step Right Up', "The large print giveth and the small print taketh away".
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."
OP | Post 40 made on Saturday August 17, 2019 at 09:18
goldenzrule
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On August 16, 2019 at 23:53, edizzle said...
Well there you go. that makes no sense!! Open the motor structure to moisture and humidity to keep it cool!! Weird

Pretty much irrelevant since I get water on both sides of the woofer.  Not just moisture but measurable water.  Lifting a heavy 12" sub out of the ground is bad enough.  Lifting a heavy 12" sub full of water out of the ground is percocet territory
Post 41 made on Saturday August 17, 2019 at 09:26
highfigh
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On August 17, 2019 at 09:18, goldenzrule said...
Pretty much irrelevant since I get water on both sides of the woofer.  Not just moisture but measurable water.  Lifting a heavy 12" sub out of the ground is bad enough.  Lifting a heavy 12" sub full of water out of the ground is percocet territory

See, with a series of levers and pulleys,......
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."
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