6 ohm speakers - uprate to 8 ohm?

"The greater linearity (lack of reactance) "

linearity has absolutely NOTHING to do with reactance.

Let me guess, you write for a HiFi magazine?

te:

Get beyond the "beginners guide to..." and perform simple listening tests with cables of equivalent x-sect on typical amplifiers, not hypothetical amps with pure power supplies.

Odd that I managed to get 98% for level III electronics (circuit design) in 1985. They must have been lying to me. ;-)

Dear boy I used to DESIGN HiFi amplifiers for a living.

And test them with instruments and ears.

They were. Or you are (more likely) By that time I had desinged or developed over 20 different power amplifiers for everything from audio, to stadium and guitar usage. Hardly hypothetical.

And spent more time peering into oscilloscopes, distortion meters spectrum analysers and the like than you had had hot dinners, and at the far end of coils of speaker cables too.

Id also worked on video frequency power amplifiers to drive fast CRTs for military applications. Getting 5W at 20Mhz is not easy, even today, when you want linearity.

Not that you appear to understand what that means.

Which suggests you are just an engineering trainspotter. You really know noting, and its all big words from magazines.

Care to speculate on the reactance of the average speaker system?

I've seen loudspeaker installations in some of the finest recording studios in the country. Custom built regardless of cost. And never once have I seen co-ax cable used for them.

Well old fellow, things have moved on a little from then, although my grandfather was using co-ax speaker wiring at least from 1960's with tube amplifiers.

Phase shifts are not readily detected unless one specifically looks for them and will tire a listener over a long period.

There's no likely about it, I attended all lessons while most of the class were playing football and so was receiving one to one tuition at times. These lessons were advanced into level IV and much practical knowledge was also received from an extremely knowledgable tutor who actually enjoyed his job when he had students who listened.

So nothing to do with co-ax.

Only by miking up a loudspeaker can one get an indication of audio performance in reproduction.

So you havn't tried it. Extended listening tests from good sources demonstrate the effectiveness of using co-ax over zip-wire with 20' lengths. Try it.

In article , Dave Plowman (News) scribeth thus

Me neither..

A recording environment is a specific application, different from a domestic installation. Radiated signals are minimised in the studio, usually with screened twisted pair, an unecessary expense for reproduction only. The comparison is ill-founded.

You've obviously a bigger spade.

yeah, but what would they know about hifi eh? Compared with 'thirty-six'

You owe me a new keyboard..

Do you just pick random phrases out of a catalogue and string them together?

Or have you recently stopped taking medication?

Oh you have a technicians city and guilds designed for equipment maintenance.

Not a degree at all. Not eeven an HND

What in earth is wrong with your ears?

And of course you are completely WRONG. If what is coming out of the amplifier is exactly the same what is going into the loudspeaker then its a sure sign that the cable is doing the job of not getting in the way.

hahahahah.

Extended listening test have clearly demonstrated that you are a total plonker.

Added to list of other plonkers.

Bye.

Nope...

Time spent working at Rupert Neve, Audix broadcast, Pye TV transmitters the BBC, Cambridge systems Tech (Audiolab)

and yourself, you in pro audio?..

The award was for a BTEC OND but there were extra modules included and tested beyond the requirements for the award.

Oh don't tell me you tested amplifier response on a resistive load.

Obviously too much for you to bear.

Nope, I had some temporary contracts early on with ILR, theater and band support alongside repair work but generally found that the rewards were unrelated to effort and the lack of appreciation caused me to abandon my quest for the ideal job.

No I think he's in Rehab..

Often more hostile if it is a TV studio. All those powerful lights with dimmers.

Twisted pairs are used for balanced signals.

One of the few things shared between domestic and studio can be high end amps and speakers. But not connected with co-ax cable.

Just why would anyone in their right mind use a cable which is larger, less flexible and more expensive than the correct stuff when it offers no advantages?

Irellevant for a permanent installation.

and more expensive

last time I actually bought some was something like 9p a metre.

It frequently IS the correct stuff.

Already given.

Comparative cable requires greater cross-sectional area with twinned flex. The major dimension of such speaker cable is greater than cheap co-axial.

Either under the boards or stapled. Loose wiring imay be used for tempory installations but not generally appropriate for fixed, permanent instalations.

=A0 London SW