consonance cyber 800

I also like the stock el34 but would like to try some Mullards next. 6922s were replaced with Amperex orange label -O- plate NOS and Tung-sol 5687 NOS . After Bob Backert mod 5687 is complitly by-passed and not in the chain. It seemed to slow this awesome amps quite a bit.

I just got some NOS Siemans EL34s......will report later about their sonic character and synergy with Cybers.
The source of these tubes, did some comparison for me and said that they are about 80% performance of famous Mullards.
Amperex 6922s Bugle Boys sounded also very good with Cybers.
I no longer have any use for 5687, they were by-passed with custom board - retrofit and optimized by Bob Beckart, the man behind the mods. Expensive but well worth it.
Every amp that I am auditioning right now faild to surpass Cyber's speed, transparency and dynamics.........the last one was from very well know American Company that costs 10K.
It was simply crushed to pieces.
If you live in NY area and what to compare stock Cyber to modded version, let me know.

Mariusz

"Hi Mrjstark
I am interested to know what the mod required ? I am not in the US so wondering if I could do it here . Does it make the amp quieter ? and what is your thought on the NOS Siemens EL34 ? Thanks .Tony"

>
>
>

Hi Tony

Mods for Cybers - no, you can not do the same mods without cloning Bob's design....which I won't reveal. Sorry

As to Siemens EL 34s - well worth the money (I am not sure what they are worth but I had those for a little bit over $250 *for 8* ....which IMO is a good deal). Not that experienced but IMO these are excellent alternatives to famed Mullards.

Mods seemed to lower floor-noise.

Hope it helps

Mariusz