• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Audio Research LS2

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Hi
I want to modify my Audio Research LS mkII pre amp. I already swapped the Sovtek tube for a Russian 6H23N-EB and fitted a Furutech IEC AC inlet, both about a year ago. It is 9 years old, and was last serviced and updated by the Dutch distributor in 2000 (the first Sovtek replacement and extra shielding).

I like the sound of this amp very much, but I know there is a lack of transparency, dynamics and punch, compared with some other great pre-amps. Still I preferred the LS2, because of its warmth, staging and ease (using it with my Spectral DMA-150 and Kharma Ceramique CE-1).

Can anyone tell me what’s the best way to go? Or point me the way to other experts or sources (the only one I found on the web was Great Northern Sound, but I definitely prefer diy).

Thanks!
Lourens
 
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