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RE: Conrad Johnson preamplifier and new tubes

Posted by 2con (A) on April 12, 2016 at 13:08:18

In Reply to: RE: Conrad Johnson preamplifier and new tubes posted by angelusxr on April 11, 2016 at 02:55:58:

Hi Daniel

there is no big differences between plain Eh and Eh gold ,the important

thing is how they are matched ;if you see tubes of the same batch

they look identical ,they have same date date ,same print ,but

between there are dudes ,good ,very good ,excellent .

This is why tou have to buy from reliable sellers , if you are not

able to do it by yourself ;this it means to buy for example 20 tubes

to have a good matched quartet (i'm saying good not excellent !)

So it is up to you .

This is the method i use :i buy 4 eh ,4 eh gold ,4 jj ,4 gold lion

and i try to understand what is the sound i'looking for .

When i understood what i want i buy ,for example, 20 Eh tubes

and try,with a tube tester and by listening through 2-3

preamplifier , to match them in quartets ;after then there is

premature failure ;as you see is a big job (i'll do this because

i like to unederstand as much as i can when i'm interested in ..)

Alternative :buying from honest reliable sellers who have to charge

the right peremium for the job .


Back to c-j 17 ls :i advice you to get the best 6922 eh you can ,

or simply buy a 4 just to try .if uou have a 9 years old tubes

you will hear defferences also with mismathced valves .


And in the end ,(sorry tonight i'm too long )if you like rock and

metal ,17ls is not your pre ,even with the best tubes in the world .


You better go with a soli d state pre from the 70's like ,for example ,

Pionneer Spec1 (the phono is excellent ;line so so )

Or the Bryston you already own (i often change pre for different

kind of music ....and i listen from piano,string quartets to

electronic ,techno,experimental passing to lirica too )


I never listened to a rig that did everything at best,and ,often,

it is not a matter of cost .

Ciao (hope not being boring)

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Atma-Sphere Music Systems, Inc.

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