Iain wrote:

-----------------


Speaker choice is such a personal thing, and there are
no "one size fits all" solutions either.
JBLs are particularly good at the West Coast Sound.


** I thought they invented it?

JBL speakers typically used large, stylish white coned woofers with 4 inch voice coils squeezed into relatively small boxes and sometimes teamed with just a tweeter. The Lancer 99 for example.

The drivers certainly looked the part, heavy alnico magnets in very well finished, cast alloy frames.

For the most part, folk owned 30 or 40wpc amplifiers and JBLs made more of those watts than others did - particularly speakers from AR.



..... Phil

On 17/02/2018 21:24, Brian-Gaff wrote:

A Venusian?

I was speaking relatively so I am sure there are many ways to destroy
speakers. Apparently ammonia fumes do them no good but who lives in a cloud
of ammonia?


Brian



--
Graeme Wall
This account not read.

NotVenus, but maybe Neptune. However a lot of ammonia is used on the space
station as a coolant.
Brian

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This newsgroup posting comes to you directly from...
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"Graeme Wall" wrote in message
news
On 17/02/2018 21:24, Brian-Gaff wrote:

A Venusian?

I was speaking relatively so I am sure there are many ways to destroy
speakers. Apparently ammonia fumes do them no good but who lives in a
cloud
of ammonia?


Brian



--
Graeme Wall
This account not read.

Trevor Wilson wrote:

------------------


**One can easily destroy JBL speakers by abusing them with regular audio
equipment. EXACTLY the same as any other speaker. Too much power and/or
too much LF excursion will do the job.


** You do not even need an amplifier for the latter - just a van with top hinged rear door. Pop the speakers inside while windows and side doors are shut tight and firmly slam the rear door.

The surge of air pressure pushes the woofer cone hard against its frame, creasing and ruining it.

Pyrotechnics can do the same if let off nearby.


..... Phil

On Sat, 17 Feb 2018 21:24:46 +0000, Brian-Gaff wrote:

I was speaking relatively so I am sure there are many ways to destroy
speakers. Apparently ammonia fumes do them no good but who lives in a
cloud of ammonia?


The residents of less salubrious Old Folks' Homes?

--
Johnny B Good

sunnuntai 18. helmikuuta 2018 14.11.16 UTC+2 Phil Allison kirjoitti:
Trevor Wilson wrote:

------------------


**One can easily destroy JBL speakers by abusing them with regular audio
equipment. EXACTLY the same as any other speaker. Too much power and/or
too much LF excursion will do the job.


** You do not even need an amplifier for the latter - just a van with top hinged rear door. Pop the speakers inside while windows and side doors are shut tight and firmly slam the rear door.

The surge of air pressure pushes the woofer cone hard against its frame, creasing and ruining it.

That's just one of the reasons why experienced road managers insist
on flight cases, or in the case of large monitors, a marine-ply
board strapped to the front of the enclosure with transport ties
before any journey. Some roadies load monitors face down in
their trucks on a thick carpet or blanket. Monitors are always the
second thing to be loaded (after the crate of ale to motivate the crew)
who will be unloading:-)

Iain