Tube with Power IC Output Stage - JLTi

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Re: Speaker cable, Franz I'd give Planet10's suggestion a try.

Franz, that's why I suggested that you try the Cat5 cables. I have also experimented with cables a lot in the past and left them behind to concentrate on more important issues like building GC's and my full-range speakers.

BUT the Cat5 cables honestly make a significant improvement over the stranded cables. It's such an easy thing to try and not expensive. You have three of us urging you to try them now so may be there is a good reason! 😉

- Interconnecting: a story of inductance, capacitivty and resistance.

Yes, but that's not all!
 
Upupa Epops said:
By the way, using of noninsulated ( by finger touchable ) binding posts is by safety norms forbinden.

Is there a reason for that?

Must be the same guys that made the EU norm of not allowing banana plugs, most binding posts on commercial amps have the holes covered. On some you can remove it, on some you don't.
Many brands started ignoring this norm.
In fact, burocrats think audiophines are mentecapts. That norm must have been created to prevent people connecting mains plugs there.:clown:

Upupa Epops said:
look at industry made amps.

Most are insulated, but there are noninsulated too.
 
As I heard, biggining of this rather nonconsistent norm was caused by dead of one idiot, which plug in dual banana connector into the wall, 'cos they have the same distance as main plug ( 19 mm ) 😀 . Talking about this concrete paragraph of this norm is rather " long way running " - I also don't comprehend logical background in some cases 😉 .
 
i'll hazard a guess: is it possible that in the event of failure elsewhere in the component, you may have lethal charge present at the binding posts? this may be some sort of blanket "double insulated" norm to eliminate that possibility in products.

it must be very difficult to write norms for millions of variables, yet keep the documentation of manageable size for manufacturers and inspectors to read. attempts to simplify will result in redundant situations where the norms appears silly.
 
BUT the Cat5 cables honestly make a significant improvement over the stranded cables. It's such an easy thing to try and not expensive. You have three of us urging you to try them now so may be there is a good reason!

Sorry, I really could not recognise a significant change, with Cat5 cables (and my tube amps). BTW: my cables are 5 feet long.

Maybe, later I will try it again, this time with a gainclone.

But soon, I will play with the Cornu spiral horns (they still wait at the customs office, as they want to much custom fee 🙁 ). Cornu gives me the chance, to search/develop a little enhancement for this speaker.

I expect more difference, than changing the cables. BTW: my experience tells me, that most time when such a detail changes the sound significantly, something in the chain is COMPLETELY WRONG!

Imho, you better search in this direction (eg. solve the REAL problem) 😎

I am sorry!
Franz

P.S.
Before delivering the sold amp, I will shrink some plastic around the binding posts 😀
... and write in the manual, it is forbidden to remove this isolation :smash:
 
Franz G said:


Sorry, I really could not recognise a significant change, with Cat5 cables (and my tube amps). BTW: my cables are 5 feet long.

I expect more difference, than changing the cables. BTW: my experience tells me, that most time when such a detail changes the sound significantly, something in the chain is COMPLETELY WRONG!

isolation :smash:

Or maybe everything is very right 😉

Terry
 
Norms are not made by idiots, I agree.

But what do you say about this practice:

An externally hosted image should be here but it was not working when we last tested it.


Thats the way, the industry sells amps with this kind of postings.

And, you may excuse me, I will do the same! I got for free two plastic bags full of this pieces today from my local highend dealer, as he removes them from new amps. :bigeyes:

Franz

BTW
The distance between my postings is of course not 19.5 mm!
 
Upupa Epops said:
As I heard, biggining of this rather nonconsistent norm was caused by dead of one idiot, which plug in dual banana connector into the wall, 'cos they have the same distance as main plug ( 19 mm ) 😀


The idiots didn't get a chance to ban banana plugs in this part of the world, because our mains plugs take flat blades, not round pins 😀 .

I could go on (and on) about the subtle but relentless "dumbing-down" of society by the "bleeding hearts", but this is not the place... :whazzat:
 
Guys, most brands use cheap plastic red-and-black binding posts.
I have a magazine here with a big Conrad-Johnson amp with beautiful nude binding posts.😎

And why do binding posts have to be isolated on the amp and not on the speakers? 😕
Too many speakers use non-isolated binding posts.
I say to the burocrats: idiots.:clown:
 
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