wink
His amps are made out of recycled beer cans
and his source from tomatos.
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- Apr 13, 2009
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Not state of the art at it's bleeding edge.
Didn't quite mean to jump on it like that. This is what happens when I post something elsewhere minutes after making a post on sound science.
Why's that?
No worries, it was more about wink with his non-sequitur and other astute words . Great practice anyhow so don't mind my comment
Oh I've fallen for worse on HF today. Thanks wink
This is what happens when I post something elsewhere minutes after making a post on sound science.
It's basically the ultimate expression of an all tube electrostatic amp with an EL34 based CCS for each output. So that means 8 EL34's plus the input tubes. The complexity of the filaments is in another league as the CCS EL34's cathodes are sitting on top of the output tubes so they will see a lot of voltage. This violates the C-Fv so they need fully isolated transformers right next to the tubes.
This design was the fruit of a rather prolific few months when design after design was drawn up and then made ever more complex. The output stage came from me cloning the RSA A-10 and trying to make something useable from that mess of a circuit and some good ideas from Kevin. It may look like SRPP but it isn't as SRPP can't work for electrostatics.
ES headphones are pure C - no question of range of bumpy load Z vs frequency multi driver iem @ 20 Ohms nominal to a 300 Ohm with single 50% bass bump choice for the amp designer to "optimize" - either a ES amp can drive a ~100pF C or not (~ 70-200 pF range)
This is turning into a vocabulary and logic contest.
Are they? I had read (from KG I think) that at low frequencies load Z is very very high, almost pure capacitative, but at high frequencies load Z begins to fall dramatically. Very similar to piezoelectric material properties, only without structural resonances causing impedance spikes.
Sounds like a crazy over the top take no prisoner design and an estat fanboy's wet dream...... and with a name like MEGATRON...me want...!!
Same headphone, just Japan vs. Export names. The normal bias models use the drivers from the SR-X Mk3, same as the SR-5N does. Pro models use the same driver but with a different diaphragm and larger spacing.
I have a pair of Gamma Pro's with the Alpha Pads, it's not the best e-stat out of the Stax range but it is very musical, quite rare as well. Some people like putting the Gamma Pro drivers into the SRX MK3 to either it makes the sound bit better or higher resale value due to the rarity of the MK3 pro's in the market, they use the same drivers just different enclosure and housing.