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Great! I'm guessing they won't be around late May? Me want to listen!
We shall see what may be.
Originally Posted by facelvega
Jeez, Duggeh, I think it's finally time for you to try the other float: the MB Jecklins. The problem is that for them to really compete you'd need something that nobody has seen in years: the PMB500 or 1000, the two electrostat models. But for starters I'd like to see how a MB QP85 (the last dynamic model of the range) fares against the Float 2 or the Ergo dynamics. At the very least the MBs are still the price leader, as the lower models rarely sell for more than 50 euros.
But say what anyone will about the original float, they are probably the only headphone ever made that legally qualifies as a crash helmet.
One day I'll get around to those MBs. No rush. And yeah, helmets for the win. The older Float electrostat was even more helmet like though!
Originally Posted by spritzer
It's actually 1200v bias on this version. I think that the 717 will be a bit underpowered driving these things but it's worth the price of the adapter cable.
The mylar is under a pretty low tension in these RTR drivers. Then again they are 1950's technology and design.
1200V? Amazing As for the 1950s design, thats no bad thing. The ESL57 has no shortage of fans today!
Originally Posted by duderuud
Great review and refurb Doug. I'm glad sent them to you for a review loan .
1200V? Amazing As for the 1950s design, thats no bad thing. The ESL57 has no shortage of fans today!
The original used -1550v for bias. It was quickly changed to + for obvious reasons and then it was lowered due to some changes in the drivers.
The Quad ESL is still a great speaker because it was simple and didn't try to be something it wasn't. Peter Walker was very adamant that the basic operating principle should be left well alone so no dual membranes, curved panels or other tricks that don't work. He did go a bit off track with the 63 but it is still a good speaker and the new ones are a great evolution. The drivers are from the 50's and while that isn't necessarily bad, the basic design was "stolen" from Janszen so no real development continued until much later. Not that there is much to develop in a square driver...
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Main rig: APL 3910 32bit -> DIY IC's with thin cotton insulated silver wire -> BHSE on order and a DIY Blue Hawaii under construction, B22 -> See profile
Secondary rig: APL 3910 32bit -> DIY IC's with thin cotton insulated silver wire -> Modded Stax SRM-T1 -> See profile
Computer rig: Computer S/PDIF output -> AudioZone DAC -> DIY IC's -> Stax SRM-1/Mk2 P.P. -> See profile
From the look of Duggeh's driver, this was a simplification of Janszen's original sheathed-conductor stator design. My memory may not be on target, but the photos remind me of my old Superex PEP-79. Wonder where Jecklin got this thing from.
Hey, do you suppose that's Jorg Jecklin in that Dutch ad?
From the look of Duggeh's driver, this was a simplification of Janszen's original sheathed-conductor stator design. My memory may not be on target, but the photos remind me of my old Superex PEP-79. Wonder where Jecklin got this thing from.
Hey, do you suppose that's Jorg Jecklin in that Dutch ad?
Jecklin used RTR drivers in the beginning and they were all a rip off of the original Janszen design. It was maybe Precide that changed to their own drivers when the took over the production.
The PEP-74 uses a carbon copy of the Stax SR-3 driver. The only notable difference is the size of the plastic mold.
__________________ Feedback
Main rig: APL 3910 32bit -> DIY IC's with thin cotton insulated silver wire -> BHSE on order and a DIY Blue Hawaii under construction, B22 -> See profile
Secondary rig: APL 3910 32bit -> DIY IC's with thin cotton insulated silver wire -> Modded Stax SRM-T1 -> See profile
Computer rig: Computer S/PDIF output -> AudioZone DAC -> DIY IC's -> Stax SRM-1/Mk2 P.P. -> See profile
What were these Janszen drivers used for? Were they the same size as the Float drivers and used as panels in speakers? Or were they larger varients on the same basic square of mylar?
As for the 1950s design, thats no bad thing. The ESL57 has no shortage of fans today!
Linear Mode
