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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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20th Sep 2020, 1:31 pm | #21 | ||
Pentode
Join Date: Apr 2011
Location: Bradford, West Yorkshire, UK.
Posts: 174
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Re: PX4 valves?
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I have next to nothing now, just computer speakers and a little sub. Maybe one day I'll buy one of those old German radios with the multiple speakers, hook it up to a source. Mono, stereo I'm not bothered. Kind of like a modern day radiogram. That will do me! Last edited by Michael.N.; 20th Sep 2020 at 1:36 pm. |
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20th Sep 2020, 2:24 pm | #22 |
Octode
Join Date: Apr 2005
Location: Peterborough, Cambridgeshire, UK.
Posts: 1,897
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Re: PX4 valves?
Surely someone has done a blind test at some point to prove if there is any detectable difference between say an PX4 valve amp and a decent Transistor one?
I would be interested to see if anyone could hear the difference ! I remember going to a hi fi shop in town when I was about 18. I was into Pink Floyd and had bought myself some Hi Fi separates they would probably be considered junk to an expert but they sounded good to me! Garrard Deck, Philips Tuner amp, (a good solid one before they went all plastic) Sharp cassette deck and Celestion speakers . The problem was my parents... They objected to hours of "Depressing noise" ! Hence my visit to the Hi Fi shop I wanted a pair of Sennheiser headphones. The rather sniffy suited assistant put on a demo record and handed me the headphones, I liked the sound and adjusted the treble on the amp to see what they were like on the high end. The assistant's reaction was one of absolute horror! He reset the treble control and explained that I needed to listen to them "flat" I did buy the headphones and left wondering why amplifiers had Bass and Treble controls if you weren't allowed to touch them! I had not dared to ask! So audio snobbery was definitely alive in 1977/8... |
20th Sep 2020, 2:26 pm | #23 |
Octode
Join Date: Jul 2004
Location: Evesham, Worcestershire, UK.
Posts: 1,415
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Re: PX4 valves?
Might be wrong but i think there was a period in the seventies where the Japanese were selling us high powered blunderbuss transistor amplifiers but eschewing them themselves in favour of low powered class a jobs utilising British px4/25 triodes, i think that's where the craze started.
Greg.
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20th Sep 2020, 2:49 pm | #24 | |
Dekatron
Join Date: Sep 2007
Location: Oxfordshire, UK.
Posts: 4,310
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Re: PX4 valves?
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The best 'explanation' for this, from an audiophile point of view, that I have come across was by Paul Messenger, audio journalist of very long standing and, until recently, editor of the no-adverts (so no direct commercial pressures) magazine Hi-Fi Critic. Messenger explains that genuinely rigorous tests inevitably have to be carried out under conditions very different from those in which hi-fi is normally used. There is time pressure. The choice of associated equipment (particularly speakers) may not be optimal, and there isn't time to optimise the layout of that equipment in the listening room. The music used may not be optimal either (tests have to be repeated for statistical significance to be reached, which limits the number of different musical pieces). The person being subjected to the test is unlikely to be relaxed. All these things make it hard to reach a conclusion. The actual use of hi-fi and even the reviewing of it, on the other hand, allows at least a few weeks for the owner/journalist to get to know the sound. They can tweak the very best out of it in comfort and without stress. Under those conditions they claim they can hear differences. In a test lab they struggle to. It's quite a hard argument to disprove. Cheers, GJ
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20th Sep 2020, 3:30 pm | #25 |
Dekatron
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,637
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Re: PX4 valves?
The only problem with a superstition is that it is a superstition.
Same applies to conspiracy theories, both are utterly impervious to reason. On much the same lines, "could improve" makes can, can't, will, won't irrelevant to the true believer. |
20th Sep 2020, 3:38 pm | #26 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,799
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Re: PX4 valves?
I'm surprised audiophiles don't get registered as a religion. The definition of belief without objective proof is easy to satisfy, and there are various tax-breaks and other advantages of protected status available to religions. At the prices they pay fot their things, tax breaks ought to be very attractive also churches aren't subject to normal planning limitations, so a listening room ought to qualify. Just do what the pastafarians did!
David
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20th Sep 2020, 3:52 pm | #27 |
Dekatron
Join Date: Nov 2009
Location: Lincolnshire, UK.
Posts: 4,985
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Re: PX4 valves?
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20th Sep 2020, 6:30 pm | #28 | ||
Dekatron
Join Date: Sep 2011
Location: Rugeley, Staffordshire, UK.
Posts: 8,809
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Re: PX4 valves?
Quote:
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A digital radio is the latest thing, but a vintage wireless is forever.. |
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20th Sep 2020, 7:05 pm | #29 |
Dekatron
Join Date: Sep 2007
Location: Oxfordshire, UK.
Posts: 4,310
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Re: PX4 valves?
Oh, I'm sure you don't buy it Steve . All I'm saying is we can't prove it's wrong. There are people in other fields who clearly don't perform well under pressure, or when they're fatigued, or when they're out of their normal environment.
Cheers, GJ
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