| janneman |
Hi guys, was in Singapore last week. Discovered, quite by accident, a revolutionary new device, a 'passive power' device. It is supposed to be put between the power amp and speaker and has a small tube in it. When I asked the sales man what it did, he named things like 'round out the sound', 'make it more clear', 'much better', etc.
What do you think? Note: there is NO power supply or other power input. And no, I don't have a circuit diagram. Come to think of it, the designer probably has neither ;-)
Jan Didden |
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| richie00boy |
Well done for getting a pic, I'm surprised they let you!
Interesting, merely wired in parallel, must make massive impact on the sound :devilr: |
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| Irakli |
It is a complete joke, forget it. :)
BTW, it is not wired in parallel. If you look carefully, the wire connected to the black terminal is undisturbed. |
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| janneman |
| quote: | Originally posted by richie00boy
Well done for getting a pic, I'm surprised they let you!
[snip] |
Me too! I put on my admiring face, and they were really beaming!
Jan Didden |
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| janneman |
| quote: | Originally posted by Irakli
It is a complete joke, forget it. :)
BTW, it is not wired in parallel. If you look carefully, the wire connected to the black terminal is undisturbed. |
A joke??? For around $ 80 US?? :xeye:
But, there's more to come.... I give you the passive pre! Just 100 $ US!
The fluffy (damping?) material under the tubes is a nice touch.
Jan Didden |
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| ACD |
Holy S... :D
This must be the mother of all c r a p :clown:
However it's quite interesting to have a peak inside these "magic" boxes ....
Well done Jan ;)
It makes one think that if someone assembled a commercial high end preamp or poweramp the same way, how many would they sell :D (I'm not speaking about the very very cheap stuff from P.R.C and Taiwan, which have allmost similar assembly) :cannotbe: |
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| FastEddy |
Jan:
Got any ideas about which of the tube pins are connected? A part of the grid? to the [6.3 V.?] filiment heater? ...
Consider: a few feet of speaker cable might act as an antenna to heat the filiment ever so slightly, driving a modest stream of electrons into the vacuum of tube and some kind of filtration / modest gain / other activity at work to modify or boost the audio signal ... (or not :eek: )
Or there could be some kind advantage taken of the local voltage gradient, the minute power differential relative to the local ground potantial. (FYI: the local voltage gradient can be huge, on the order of several hundred volts per meter, but the current vanishingly small from almost unmeasurable to a few microAmps. [This is what causes trees to grow up instead of out = :dodgy: ) |
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| DCPreamp |
Very interesting devices. What a bargain too!
However, they're not too much beyond the realm of many other devices/concepts I've seen on this forum. Theories such as:
Burning-in op-amps
Freezing pictures of items to make the items work/sound better (WTF?)
Green ink on CDs
Raising the value of feedback resistors to "mellow" out sound
Super expensive interconnects
Able to hear op-amp sockets
Etc.
Etc.
Remember:
"Those who can make you believe absurdities, can make you commit atrocities." Voltaire |
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| es44 |
That fluffy stuff in the "passive preamp" must be feathers from a newborn chicken. Should be plucked no more than 5 days after it left the egg, preferably by fullmoon, and blessed by a 35 year old virgin with six toes on her left foot.
Only that way you can get the real smoooth sound that's so rare to find.
Everybody knows that :D |
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| matt J |
| quote: | Originally posted by es44
That fluffy stuff in the "passive preamp" must be feathers from a newborn chicken. Should be plucked no more than 5 days after it left the egg, preferably by fullmoon, and blessed by a 35 year old virgin with six toes on her left foot.
Only that way you can get the real smoooth sound that's so rare to find.
Everybody knows that :D |
Tut tut, that wont work properly, you forgot to cryo treat it :whazzat: ;) |
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| kubeek |
ROTFL!!
That´s the craziest gadget i´ve ever seen!
BTW how does it sound? :D |
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