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Thread ID: 33209 2003-05-10 21:12:00 OT - Is there such thing as a stereo record? somebody (208) Press F1
Post ID Timestamp Content User
142981 2003-05-11 12:35:00 Thanks, Terry.

Does it get up the noses of some of you guys (like it gets up mine) that now speaker output is often quoted in PMPO? I thought that after so much debate, that argument was finally settled about 1973-74. Henceforth and for ever the only figure quoted was to be RMS.

A pair of multimedia speakers I bought recently at a certain big red barn spelt out 280 watts PMPO and 10 watts RMS, which pleased me because at least I could tell what I was getting. I like them because they have a headphone jack so that I can listen on headphones to anything my computer pumps out, not just music CDs.
Deebee (1184)
142982 2003-05-11 12:43:00 Yes Deebee it does irk a bit, I have no idea what PMPO means. (Like the judge who says ..'and pray, tell me what are the Beatles?' .... or substitute any other pop group of the day) Terry Porritt (14)
142983 2003-05-11 20:34:00 As a matter of interest a sound buff from Vic. Uni. sold me some speakers in box's he had made by laminating lead into the plywood,that would have been in the 70's. Thomas (1820)
142984 2003-05-11 22:15:00 >
> A pair of multimedia speakers I bought recently at a
> certain big red barn spelt out 280 watts PMPO and 10
> watts RMS,

Have a look at This Thread (pressf1.pcworld.co.nz) in which I explained how PMPO output figures were obtained.

It is a bit tongue in cheek,:p but the fundamental truth is confirmed by your 230 Watts PMPO becoming 10 Watts RMS. Allow for acceptable distortion levels and that gets down to about 5 usable watts of real music volume. Note that there is no formally agreed means of establishing PMPO. This is because PMPO is advertising puffery that no self respecting audio expert would want to dignify with a scientific formula or test set up.

Cheers

Billy 8-{)
Billy T (70)
142985 2003-05-11 22:57:00 An old joke but worth repeating or maybe not.

I've got a vinyl disk with a hole in the middle, Is this a record?
bonzo29 (2348)
142986 2003-05-12 01:16:00 Good oh. Worth repeating ;\ Terry Porritt (14)
142987 2003-05-12 02:12:00 There were some Edison cylinders put onto CDs a while ago. I think they were advertised in Wireless World (all right, they piked out and it's now called "Electronics World") a year or so ago.

They (in the irrelevant digression section) had a lovely article 2 or 3 years ago about the early days of television (the 32 line Baird version). A guy found some disk recordings (on big aluminium discs)of some early programmes and played them back into a televiwer he built. The pictures were "recognisable". They found the lady who was the starred singer (in 1932 or thereabouts). This beats your rotten video tape recorders and DVDs. The other item featured in that article was a test disc. A 10" shellac disc, with test patterns to test your Televisor. It cost 7/6d, which was quite a lot of money then.
Graham L (2)
142988 2003-05-12 04:25:00 For the ultimate rich boy's toy to play your old vinyl (or even 78's), try This link. (members.lycos.co.uk) Only trouble is, it costs an arm and a leg (them's US dollars folks), but that should be no problemo for a super geek and gadget freak like robo.:p

Perhaps you could get one in for FFWD mag to review robo, then we could all take turns at converting our vinyl to CD. There could be a small (make that very small) commission in it for you!

Cheers

Billy 8-{) :D
Billy T (70)
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