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Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
"Mike Gilmour" wrote in message ... "Stewart Pinkerton" wrote in message ... On Fri, 19 Nov 2004 02:31:25 +1100, Patrick Turner wrote: ...Clippidy do da..... Mike Gilmour wrote: Likely better than a Swiss-made one...... (not a Rolex fan - like SET valve amps, all marketing and no substance) I'm surprised and interested by your remark remark that Rolex watches are effectively a substandard product? On what do you base this opinion on? Stewart Pinkerton | Music is Art - Audio is Engineering Sorry for the typo..its answering the phone and typing at the same time ;-) |
Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
On Thu, 18 Nov 2004 18:16:05 -0000, "Mike Gilmour"
wrote: "Mike Gilmour" wrote in message ... "Stewart Pinkerton" wrote in message ... On Fri, 19 Nov 2004 02:31:25 +1100, Patrick Turner wrote: ...Clippidy do da..... Mike Gilmour wrote: Likely better than a Swiss-made one...... (not a Rolex fan - like SET valve amps, all marketing and no substance) I'm surprised and interested by your remark remark that Rolex watches are effectively a substandard product? On what do you base this opinion on? Stewart Pinkerton | Music is Art - Audio is Engineering Sorry for the typo..its answering the phone and typing at the same time ;-) Don't you mean it is simultaneously answering the phone and typing at the same time? ;-) d Pearce Consulting http://www.pearce.uk.com |
Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
"Mike Gilmour" wrote in message ... "Stewart Pinkerton" wrote in message ... On Fri, 19 Nov 2004 02:31:25 +1100, Patrick Turner wrote: ...Clippidy do da..... Mike Gilmour wrote: Likely better than a Swiss-made one...... (not a Rolex fan - like SET valve amps, all marketing and no substance) I'm surprised and interested by your remark remark that Rolex watches are effectively a substandard product? On what do you base this opinion on? Gawd, don't get him started on about his bling - it'll be about his 'motah' next..... |
Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
"Patrick Turner" wrote Is it your opinion that the 6550s are a better valve generally? - I'd sooner not spend £150 or more to find out they are, if that's likely to be the case!! (I can't say I 'remember' a vastly different sound myself.....!!??) KT88 EH and 6550 EH are now exactly electronically identical from all the tests I have done. OK - useful. Brands other than EH will be different. Understood. Not necessarily better or worse, and tube amps sonic signatures depend on combinations of sources and speakers; so do some SS amps. so I don't think there is an easy explanation for what we hear. Agreed entirely. I've just spent a while switching amp/speaker combinations about myself. Both perform well, and a guy who replaced the ageing jan GE6550A in an amp I made for him was astounded with the new 6550 EH. I have a number of EH valves (including 2A3s) and have to say I like them a lot. Jim Fish of Wilsons Valves - a highly respected UK 'valve man' (who won't sell Mullard NOS to the Yanks, to give you a clue) reckons they are the modern equivalent of Mullards. But I also changed other things in the amp, like using EL 84 as driver triodes, instead of 6CG7, and a simpler NFB application. And so I dunno what contributed to the better dynamics. Thd went from 0.04% at 3 watts to 0.01%, with no more NFB applied, so maybe that says something. Interesting. |
Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
"Mike Gilmour" wrote in message ... "Patrick Turner" wrote in message ... Mike Gilmour wrote: "Patrick Turner" wrote in message ... Expect thats the new bottles giving out the smell, had the same thing happen here when I installed 8 new KT88's..the stink was 'orrible but it went away after about an hour. Funny that, because it's the first time I had quite that strong smell from new power valves...probably a bit of burnt bean sauce and rice wine after the factory lunch break :-) ......If they have one that is! Mike Smelly amps after turn on indicate the tubes have not even been tested properly. Yes that makes perfect sense. I'm in a habit of testing before use anyway & giving power tubes a fairly easy start in life. I've generally found tube suppliers to be fine exchanging defective or sub-standard bottles but I'm not happy about the new possibility of premature tube death due to improperly tested tubes.. Mike, you keep boasting about your sodding tester and you're going to get a package marked 'Test This Little Lot' in the post.... ;-) |
Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
"Patrick Turner" wrote But the competition is extremely hot for all electronics made outside asian sweat shops. That's something I'm wondering about - I suppose the new wave of cheap Chinese amps just *has* to be made in sweatshops. Still beter to buy them than not I suspect..... He chose levels and the discs, I merely witnessed a tuberligious experience. :-) I don't sell amplifiers; they sell themselves. Ain't that the truth!! :-) People come here for a listen, they mostly go off and buy summat valvey and all I do is point out the downside!! (Heat, voltages etc.) |
Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
"Kurt Hamster" wrote in message ... On Thu, 18 Nov 2004 16:37:35 +0000 (GMT), Dave Plowman (News) used to say... In article , Kurt Hamster wrote: **Ah, so Keith WAS a drinker. That explains a great deal. The damage has already been done. And by his outburst about being teetotal, without qualification, hopefully not in denial. So you maintain that an alcholic can't become teatotal then? No. Do you? You seem to infer that it can't happen without some form of qualification. Would an RSA 'Certificate Of Professional Competence' do? :-) |
Valve amp (preferably DIY) to drive apair of Wharfedale DiamondII's
Kurt Hamster wrote:
Which is why, I suppose, they are called MOSFETs and not transistors. What did the T stand for in MOSFET again, Kurt? |
Valve amp (preferably DIY) to drive apair of Wharfedale DiamondII's
Jim Lesurf wrote:
I can't comment on the psychology area, but the physiological processes in the ear involve various forms of nonlinear response. However I'd say we have to take care with calling this 'distortion' as it is probably better considered as something like conversion or processing. Agreed. I was trying to stick with the language mick used (and finding it somewhat difficult to convey my meaning in the process) (no offense, mick) However IIUC your point correctly, Ian, it was that you were saying that this happens in the hearing process, not in the sound as it is produced and propagated. Correct. Hence if it is not externally applied when we listen to live music, then it becomes debatable if we want equipment to apply a process which our head will be performing anyway. (Thus applying it twice in sucession, which would not occur for the live sounds.) Yup. IMO. Snag being to try and equate or compare such 'external' and internal processes, or make assumptions about what may do to the other. Not easy, as we don't seem to really understand the implications of either process... And few people would allow one to attach a sensor directly to the nerves in the ear... Sadly, MRI technology which would be able to resolve signals on the magnitude of nerve-sizes is not quite with us - it requires multi-tesla strength magnets, and the only such machine in existence apparently has an apperture just big enough to insert a fly into... |
Valve amp (preferably DIY) to drive apair of Wharfedale Diamond II's
"Keith G" wrote in message ... "Mike Gilmour" wrote in message ... "Patrick Turner" wrote in message ... Mike Gilmour wrote: "Patrick Turner" wrote in message ... Expect thats the new bottles giving out the smell, had the same thing happen here when I installed 8 new KT88's..the stink was 'orrible but it went away after about an hour. Funny that, because it's the first time I had quite that strong smell from new power valves...probably a bit of burnt bean sauce and rice wine after the factory lunch break :-) ......If they have one that is! Mike Smelly amps after turn on indicate the tubes have not even been tested properly. Yes that makes perfect sense. I'm in a habit of testing before use anyway & giving power tubes a fairly easy start in life. I've generally found tube suppliers to be fine exchanging defective or sub-standard bottles but I'm not happy about the new possibility of premature tube death due to improperly tested tubes.. Mike, you keep boasting about your sodding tester and you're going to get a package marked 'Test This Little Lot' in the post.... ;-) Hey I get enough of those already, several friends...some with large OTL's i.e. two monoblocks = 30 valves to test at a time :-( My Avo valve characteristic meter MkII is as old as the hills so not much to boast about..as it came in on a Zimmer frame ;-)..... but it does work very well if calibrated from time to time..and I picked it up for next to nothing. |
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