In article , John Phillips
wrote:
On 2009-08-07, Don Pearce wrote:


1. If you open circuit the cable at the loudspeaker end, it is better
if the cable is somewhat lossy, as this will prevent the quarter wave
Mod Z dropping to too low (potentially damaging) a value.

Alternatively, perhaps, that a well-designed amplifier will have about 2
uH of good quality inductance in series with its output to avoid such a
case becoming damaging?

That is the 'solution' I personally tend to prefer. It also helps deter
entry of RF into the amp via the live speaker lead.

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