Sound quality improvement on an LG

On Thu, 17 Mar 2011 12:08:34 +0000, Donwill
wrote:


Damn it, and I was thinking of buying a Cambridge Topaz CD10 premium CD
player in the hope that it would perform better than the old Sony which
has developed silly faults.

I have a Cambridge amp (650a) and CD player (650c) which don't make
any noise when on standy - I've just been and had a listen to make
sure.

In article en.co.uk,
Roderick Stewart wrote:
I have a Cambridge Audio hi-fi CD player which hums even when it's
switched off! Apparently the power switch is downwind of the mains
transformer. If it weren't made by such a well respected audio equipment
manufacturer I might be tempted to criticise this as bad engineering.
Maybe I'll dismantle it and give the laminations a squeeze in a vice one
day, but in the meantime, the temporary (possibly becoming permanent)
workaround is to unplug it and play CDs on something else instead.

Clamping then painting with fibreglass resin (Halfords, etc) usually works.

--
*Don't squat with your spurs on *

Dave Plowman London SW
To e-mail, change noise into sound.

In article en.co.uk,
Roderick Stewart wrote:
In article , Ian wrote:
When I had a 9200T, it sat on a glass shelf and the hard drive used to
hum.

I put a strip of polystyrene under each end and quietened it
considerably.

I have a Cambridge Audio hi-fi CD player which hums even when it's
switched off! Apparently the power switch is downwind of the mains
transformer. If it weren't made by such a well respected audio equipment
manufacturer I might be tempted to criticise this as bad engineering.

So might I. Weird that we still have audio equipment launched into the wild
with 'hum along with the music' transformers.

Maybe I'll dismantle it and give the laminations a squeeze in a vice one
day,

You might find that is enough to simply fit some resilient 'rubber' or
similar grommits or washers of sheets so that the vibration doesn't use the
casework as a sound board. I've done that with various items of domestic
kit over the years and it often damps out mechanical transformer noises.

Ditto for some bits of sticky-back-floppy-stuff as sold either for inside
speakers, or damping the vibration of car metalwork panels. Some of this
stuck inside the casework of some items can reduce hums and rattles.

Crazy that it should be needed, though.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

In article , Donwill
wrote:
On 17/03/2011 11:27, Roderick Stewart wrote:
In , Ian wrote:

When I had a 9200T, it sat on a glass shelf and the hard drive used
to hum.

I put a strip of polystyrene under each end and quietened it
considerably.

I have a Cambridge Audio hi-fi CD player which hums even when it's
switched off! Apparently the power switch is downwind of the mains
transformer. If it weren't made by such a well respected audio
equipment manufacturer I might be tempted to criticise this as bad
engineering. Maybe I'll dismantle it and give the laminations a
squeeze in a vice one day, but in the meantime, the temporary
(possibly becoming permanent) workaround is to unplug it and play CDs
on something else instead.

Rod.

Damn it, and I was thinking of buying a Cambridge Topaz CD10 premium CD
player in the hope that it would perform better than the old Sony which
has developed silly faults.

What is the model that is making the racket? Is it reasonably new? I have a
CA DVD player and that works fine wih no rattles or transformer noises.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

On Mar 17, 9:05*am, "Brian Gaff" wrote:
So what a stupid place to put speakers.

I noted one set a few weeks ago where something inside rattled on certain
notes. It took me back to the old valve tellies of the 70s which sometimes
did this due to the amount of resonant bits and pieces inside them.

*Brian


Lots of tellies have utter garbage for speakers & mounts - screwing
them to flimsy plastic isn't great, as is the technique used on my
current CRT (Toshiba), but these flat screens have even less space - I
am surprised that they can even reproduce sounds better than a
telephone! I have, since I have been able to wield a soldering iron in
anger, wired in suitable sockets (if not present already) and used
proper loudspeakers. It just makes watching The One Show and Jeremy
Kyle /that/ much better.

On 17/03/2011 09:05, Brian Gaff wrote:
So what a stupid place to put speakers.


You're well out of that market.

As far as I can tell they _all_ do this. And I've just bought a new
telly, so I am up to speed. Seems a screen an inch thick sells better
than one two inches thick, and audiophiles just buy an external system.

Andy

Andy Champ wrote:
On 17/03/2011 09:05, Brian Gaff wrote:
So what a stupid place to put speakers.


You're well out of that market.

As far as I can tell they _all_ do this. And I've just bought a new
telly, so I am up to speed. Seems a screen an inch thick sells better
than one two inches thick, and audiophiles just buy an external system.

Andy
I have two little Sony flat screen sets with front-facing speakers and
they sound fine to me. Obviously not hi-fi, but perfectly good enough.
And they can be turned up loud without distorting.

Bill

On Thu, 17 Mar 2011 19:55:58 +0000, Andy Champ
wrote:

On 17/03/2011 09:05, Brian Gaff wrote:
So what a stupid place to put speakers.


You're well out of that market.

As far as I can tell they _all_ do this. And I've just bought a new
telly, so I am up to speed. Seems a screen an inch thick sells better
than one two inches thick, and audiophiles just buy an external system.

I fantasised about an innovatory design using the LCD panel as a speaker
diaphragm.


--
Peter Duncanson
(in uk.tech.digital-tv)

"Peter Duncanson" wrote in message
...
On Thu, 17 Mar 2011 19:55:58 +0000, Andy Champ

wrote:

On 17/03/2011 09:05, Brian Gaff wrote:
So what a stupid place to put speakers.


You're well out of that market.

As far as I can tell they _all_ do this. And I've just bought
a new
telly, so I am up to speed. Seems a screen an inch thick sells
better
than one two inches thick, and audiophiles just buy an external
system.

I fantasised about an innovatory design using the LCD panel as
a speaker
diaphragm.


--
Peter Duncanson
(in uk.tech.digital-tv)




It's called NXT?


--
Woody

harrogate three at ntlworld dot com