Thanks Dave I have seen those, with accurate feedback eq, that's why I was surprised at my findings with the 25R.Originally Posted by DSJR
Does this help - featuring my very own Croft preamp before being sold to me......
Alan
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I'm Alan.
Thanks Dave I have seen those, with accurate feedback eq, that's why I was surprised at my findings with the 25R.Does this help - featuring my very own Croft preamp before being sold to me
Alan
I love Hendrix for so many reasons. He was so much more than just a blues guitarist - he played damn well any kind of guitar he wanted. In fact I'm not sure if he even played the guitar - he played music. - Stevie Ray Vaughan
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+1 from me...!
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Location: East Riding of Yorkshire these days
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I'm Shaun.
Such an excellent statement...!Cheers for the info, Dave. You know me with measurements, though... I don't really give a toss. Ultimately, it's about what sounds best!
Marco.
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If it sounds good and measures good- then it's good. If it sounds good and measures bad- you're measuring the wrong thing.
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I'm Stephen.
I suppose it's one way of re-mastering vinyl.After further research I now know that Glenn uses passive equalisation in the 25R but way off standard RIAA curves.
The lower turnover of usually 3180 uS is something like 5700 uS, whilst the upper turnover is way less than the normal 75 uS, or even 50 uS.
No wonder there was a tonal difference
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Location: Sheffield
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I'm John.
Someone with a new croft preamp should just measure it if they're bothered.
What I can say is that in the past, when I've compared cd vs vinyl of the same recording, synchronised and level matched, I could detect no tonal anomalies whatsoever when switching between the two.
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Have you tried using a 4-pole filter with the Neumann time constant?After further research I now know that Glenn uses passive equalisation in the 25R but way off standard RIAA curves.
The lower turnover of usually 3180 uS is something like 5700 uS, whilst the upper turnover is way less than the normal 75 uS, or even 50 uS.
No wonder there was a tonal difference
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Location: The Black Country
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I'm Alan.
No but then I don't need it as my eq is not the one in error.
I found the published results from Stereophile and the measured curve is quite wrong: http://www.stereophile.com/content/c...r-measurements
Marco - I found an earlier posting saying your Charisma was measured flat to 100KHz by AnthonyTD, I assume that includes the RIAA so no worries
Alan
I love Hendrix for so many reasons. He was so much more than just a blues guitarist - he played damn well any kind of guitar he wanted. In fact I'm not sure if he even played the guitar - he played music. - Stevie Ray Vaughan
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Indeed, Alan. It'd have been from the last time the amp was on Anthony's test bench.Marco - I found an earlier posting saying your Charisma was measured flat to 100KHz by AnthonyTD, I assume that includes the RIAA so no worries
Incidentally, don't get me wrong, I wasn't 'worried' if the RIAA curves Glenn had used were different from standard (far from it!) I was merely suggesting that, if that were the case, it might partly explain why the phono stages in Croft preamps always sound so superb, and better than many others.
Therefore, if Glenn had deliberately 'voiced' his phono stages in that way, by tweaking the RIAA curves, then as far as I was concerned, he was to be APPLAUDED (for the quality of his ears), not derided!
I always admire audio designers who push the boundaries and challange 'currently accepted wisdom', not simply pander to what text books say is 'correct'...
Marco [who couldn't give a tinker's cuss about 'correct measurements', as long as it sounds good].
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Senior Member
Location: The Black Country
Posts: 6,257
I'm Alan.
With that, like not needing any exotic components...oh hang on that's another one of Glenn's as well isn't it?
I love Hendrix for so many reasons. He was so much more than just a blues guitarist - he played damn well any kind of guitar he wanted. In fact I'm not sure if he even played the guitar - he played music. - Stevie Ray Vaughan
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