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Modify Threshold SA/2, or buy a Pass Labs X250.5?

Dear Audiogoners,
Currently I have a pair of Threshold SA/2 monoblocks, considering either sending them to Jon Soderberg to modify, or buying a Pass Labs X250.5. Will the sound improve significantly if I replace SA/2 with X250.5? or I should have my SA/2 to modify? I prefer lower noise floor in my system and with more balanced sound. In addition, my source is CDSD with DAC6e combo, will the sound imporve a lot if I connect them with balanced cable instead of interconnect?
please give me some suggection, thank you!
thelittleprince
jpainter236's avatar
jpainter236
115 posts
 
What mods are you doing, if sent to Jon?
thelittleprince OP
1 posts
 
Hi Jpainter236,

That's what Jon suggested for the modification:

Installing Cardas Binding posts, new main caps and IXYS fast recovery diode rectifiers.

Do you have any better suggestion for the modification? also, if I ask him to add the balanced input, will the monoblocks have better sound?

thanks!
rossman
74 posts
 
My Pass Labs X-350 really prefers balanced lines as the are definetely what Pass also recommends in the manual as well. They were designed that way with single-ended being second. Much higher gain as well is the benefit.
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