Are you referring to the original or the copy.
I think the copy is good value for money.
Silver plated ofc copper strands, each strand separately enclosed in a teflon tube, surrounded by a filament to keep a distance from the teflon tube and terminated with (fake ?) WBT connectors.
Worth to give it a try IMO.
Hans
I've never seen an amplifier produce an SPL... No, I'm wrong. I've seen some with very noisy fans... 🙂
So where does this vibration that is enough to create audible effects come from? And surely it would be easy to remove it and then compare...
That's because the Protons and Electrons are not aligned
The vibration will probably be easy to remove with one or more Bybees. 😀😀
Sorry, I couldn't resist
Hans
Floor vibration from speaker sound/bass mostly. Cables laying on the vibrating (typically wood) floor. Some people use cable "lifters" to reduce it.
You can also use a dielectric which is solid and not foamed. No loose wires in a semi-air core construction. Tightly wound shield. All construction which makes for a very tight and almost rigid cable.
Oh. And IMO.
[I have concrete floor, so no problem that way]
THx-RNMarsh
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That's called Fletcher-Munson, unless you scale down the output for a constant SPL.
And don't forget the compression of the ears vs SPL; still AE101, but breaking out of the Bode plots gets you a bit further.
https://em.geosci.xyz/content/maxwell1_fundamentals/harmonic_planewaves_homogeneous/skindepth.html
You know, skin depth is not a brick wall condition? The number chosen is only 37% of the total. You can pick other numbers... 90%, 10%, 50%. I use a factor of 2X or 3X for skin affect as a more useful number.
THx-RNMarsh
You know, skin depth is not a brick wall condition? The number chosen is only 37% of the total. You can pick other numbers... 90%, 10%, 50%. I use a factor of 2X or 3X for skin affect as a more useful number.
THx-RNMarsh
Parasound Debuts Flagship Halo JC 1+ 450-Watt Monoblock Power Amplifier | The Absolute Sound
At 83 pounds, the new JC 1+ is 30 percent heavier than the JC 1. Its new power transformer has 20 percent higher capacity, while additional Nichicon power-supply filter capacitors increase from 132,000 uF to 198,000 uF. The new amp boasts 24 Sanken 15A/230V output transistors compared to 18 — a 33 percent peak current increase, for music that truly soars.
The Parasound Halo JC 1+ is remarkably quiet and is thefirst commercially built product to employ active high-frequency noise filtering with Bybee Music Rails™, eliminating input stage noise that compromises sound quality. Curl’s newly-designed driver stage employs a cascode circuit with greater open-loop bandwidth and increased linearity. In another first for the JC 1+, the input and driver stages reside on FR-408 printed circuit board material. Until now FR408 was used in super-computer and aerospace applications. The input-stage power supply is totally independent from the main power supply. Its R-core transformer isolates sensitive circuitry from high-frequency power line noise. This input stage power supply employs quiet high speed/soft recovery diodes and 22,400 uF filter capacitance, to deliver +/- 112 VDC rail voltage, virtually eliminating distortion. Premium Wilson Audio REL capacitors use a proprietary design, which resists micro vibrations that typically degrade the sound quality of other caps. The addition of an XLR Loop Out as well as a 12V-trigger/delayed-turn-on improve the connectivity and utility when multiple JC 1+s are used in bi, tri, and quad amp configurations.
At 83 pounds, the new JC 1+ is 30 percent heavier than the JC 1. Its new power transformer has 20 percent higher capacity, while additional Nichicon power-supply filter capacitors increase from 132,000 uF to 198,000 uF. The new amp boasts 24 Sanken 15A/230V output transistors compared to 18 — a 33 percent peak current increase, for music that truly soars.The Parasound Halo JC 1+ is remarkably quiet and is thefirst commercially built product to employ active high-frequency noise filtering with Bybee Music Rails™, eliminating input stage noise that compromises sound quality. Curl’s newly-designed driver stage employs a cascode circuit with greater open-loop bandwidth and increased linearity. In another first for the JC 1+, the input and driver stages reside on FR-408 printed circuit board material. Until now FR408 was used in super-computer and aerospace applications. The input-stage power supply is totally independent from the main power supply. Its R-core transformer isolates sensitive circuitry from high-frequency power line noise. This input stage power supply employs quiet high speed/soft recovery diodes and 22,400 uF filter capacitance, to deliver +/- 112 VDC rail voltage, virtually eliminating distortion. Premium Wilson Audio REL capacitors use a proprietary design, which resists micro vibrations that typically degrade the sound quality of other caps. The addition of an XLR Loop Out as well as a 12V-trigger/delayed-turn-on improve the connectivity and utility when multiple JC 1+s are used in bi, tri, and quad amp configurations.
yep. Lots of houses/apartments have wood floors. Plywood over spaced supports is common.
I had a new 3 story house being built near Sacramento, Calif, USA by the River and they spec'ed plywood floor and wall-to-wall carpet over it. I wanted tile floor. it was a $40K upgrade to the house to stiffen and make the floor so it would not flex or the tile would crack.
This is typical of housing construction today. They do vibrate.
THx-RNMarsh
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Most people have carpets too? And if you have a bare wood floor as Scott says you have bigger reflection issues...
But the real point was - sufficient vibration to be audible -- how much is that, regardless of floor type?
Even with a lot of bass, a line level cable isn't long or big, it's a small target for those basson particles...
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🙂 Hey tis is DIYA.... We should start a DIY Bybee thread. The must be easy to make... (once you find a witch to cast the right spell...)
WOW but I need 4 of them Only $34,000 USD :-(
Oh well.
Meanwhile, We found the thermal tracking of the OPS bias was not tracking. New pcb layout and more OP devices, too. 🙂 That should do it. Units are at Asean show now. Heard it sounds great but have to wait until after show to get them back. Oh and upped the bias to total of 100W class A. Bias/temp is stable.
THx-RNMarsh
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Only if they're excited 😉 Isolation then is the cure, perhaps you spent 40k in vain 🙂, think how many Bybees you could have bought John with that......
Yur right but this was before ByBee ... Tile flooring was for aesthetics. But it didnt vibrate nor flex, either.
-RNM
Another clean-up of posts containing personal attacks and divisive attempts plus collateral.
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