"Meat Plow" wrote in message
...
On Sun, 16 Nov 2008 05:03:47 -0500, "George's Pro Sound Company"
wrote:


"Meat Plow" wrote in message
...
On Sun, 16 Nov 2008 04:25:13 +0000, Eeyore
wrote:



Meat Plow wrote:

"George's Pro Sound Company"wrote:
"Meat Plow" wrote in message
Eeyore wrote:

This is a well established technique for preventing voice coils
burning
out under conditions of 'overdrive'.

There is a stage monitor I'm having problems with that uses this
method.

The HF sounds very distorted and almost cuts in and out.

I looked closely inside and found some damaged push-on terminals.
Ah,
I
thought, probably a poor contact causing the probelm, replaced
them,
checked driver DC resistances etc, reassembled thinking I'd
probably
fixed it.

But no, the low level HF and distortion continued.

I'd checked the DC resistance of the protection bulb but later it
occurred to me that it might have 'very nearly' burnt out and have
a
weak spot that wouldn't show up on a DVM but passing signal would
heat
it and cause this trouble. I'll be able to find out soon enough but
I
wondered if anyone else had ever encountered this ?

In the meantime I brought the HF driver home to check it's not
voice
coil rub.

Been using some Wharfedale stage gear for a year or so. The mains
are
all protected by lamps. I've replaced two in a year but not
experienced a distorted HF. You'll find problems in the xover or
drive
I would assume rather than the lamp.

or maybe it's time to upgrade from that MI grade junk your using
George

Who, me?

From what I've heard they're well considered and in the IAG group now.
http://www.internationalaudiogroup.com/

The Chang brothers don't believe in messing about AIUI.
http://www.internationalaudiogroup.c...ve_summary.php

Graham



We've been using the Warfe pro-audio stuff for a year and have had few
problems. One 2500 watt power amp we used for our 18" subs got sent
back because it was too sensitive and would fault when pushed hard at
4 ohms. The replacement did not exhibit this behavior under the exact
conditions. I've replaced a couple lamp protectors elsewhere.

I wouldn't call Wharfedale junk. It's usable, sounds good and reliable
and a lot less expensive than other name brands.

I consider W home stereo grade gear, not suitable for Pro Live Sound,
below
behringer


Glad to hear it. I don't suppose you're a musician who uses Wharfe
gear or repairs pro audio gear for a living, but rather just another
consumer or retailer who has an opinion.

As far as the Behringer gear goes I have no experience with it so
other than seeing a lot of negative comments about it from those who
do use or repair it i have no opinion.

my opionons are formed by the gear I choose to own or not own, I IN FACT put
my money where my mouth is
I OWN a sr company with a 1/4 million dollars of inventory and events that
have run into the 100,000 attendence range
be at it over 20 years
I feature mostly Meyer Sound Labs gear for the serious rig and behringer for
the disposable low end crap
George