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In Reply to: RE: Anyone compare these? posted by Sondek on October 29, 2016 at 19:27:31
... that you will be pleased with Cryoset GLs, as they are very musical and yet very detailed and extended, a sweet combo.
Thanks for the post, Sondek.
Cheers,
WS
Follow Ups:
Come on now ! Rectifiers yield sonic signatures in spite of the slight voltage differences. Just like differing audio tubes' construction, some differences not being visible with our eyes, it is unarguable that various structures cause differing sonic signatures.
Let us take just a slight tour into the world of the GZ-34/5AR4. Anyone who has heard the now very rare, original metal based versions or any of the "double D getter" versions, as opposed to the later "single halo getter" versions of this rectifier will instantly recognize which of these is the better sounding. It is not simply voltage differences.
If you have the many GZ34 versions on hand, then try each type and check the voltages, I promise you all that the sonics will differ, even among similar voltage resulting tubes.
If we all easily agree that different version 12AX7s (or 6DJ8s or any of your fave audio signal tubes) sound different, why is it a common misconception that differing construction within rectifiers would not also cause differing sounds ?
Without comparing dollar values or demand or seller preferences, is it that difficult to imagine why so many tube folks collect different versions of the same tubes ? The lowest common denominator is simple; it is the sound of the various devices...There is so much about our hobby that simple theories cannot explain. Believing the differing sonics of different types of the same rectifiers is caused by slight voltage difference arises from either simple, unintended ignorance, denial or stubbornness. Of course, sellers who push certain easily available types might have their own agenda. However, we are talking about a limited demand of items desired within a very limited audience...
They don't produce much switching noise harmonics either, but they certainly do limit how much storage we can achieve.
Note that I am not saying the amp's don't sound different with different VRs, just that it can only be due to their differing voltage drop. Unless we can hear DC, and I'm pretty certain we can't.
The difference in storage at with a lowish 400 V supply +/- say 15 volts at the top of the HV rail is quite significant. Viz. let's take a 400V notional supply and add / subtract 15 V. The factor to multiply the capacitance by is just 148,225 at 385 V, against 160,000 with no drop and 172,225 with 415 volts.
Plus or minus 5 v with a supply voltage ~ 600V? for KT88 style amps will have even greater impact.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
....you are addressing claims made by Timbo, not me.
I agree with you. Or I wouldn't have about 20 different rectifiers sitting around like gold bricks, doing nothing other than looking beautiful and waiting their chance to strut their audio stuff....
(And me thinking about buying some more to play with!) :-)
However, Timbo has his opinions, and I am glad he shared them with us.
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