On 28/01/2014 10:24, Chris J Dixon wrote:
John Williamson wrote:

On 27/01/2014 16:41, Chris J Dixon wrote:
I boxed up an L-pad
http://cpc.farnell.com/_/lp-200-8/speaker-l-pad-stereo/dp/LS00544?Ntt=LS00544
and installed it a while ago, but it doesn't really seem to have
sufficient adjustment.

I find that odd, as if it's wired correctly, an L-pad should give an
adjustment range from 0- 100% of full power.

Well, AFAUK I have done it right, but I suppose that is a bit of
a circular argument. ;-)

Indeed. Obviously, you'd not deliberately or knowingly do it
incorrectly. :-)

Another alternative would be to install a 100 volt speaker system with
independent volume controls in each room, but that would mean buying a
new amplifier,and some matching transformers and volume controls.

So, significant expense, compare with my proposal which you
snipped. Just for the record, what would its advantages be?

Completely independent control of levels on all speakers. Only one
amplifier to go wrong, and 100 volt line amplifiers tend to be designed
and built to last for ever even when abused. The downside is that the
transformers can degrade the sound quality slightly, which may obviously
be an issue.


--
Tciao for Now!

John.