It is a good idea to purchase a vintage tube pre-amp.


Since the new one are pretty expensive and what I can afford is an old one with budget of US$2000~3000. Since I don't have much knowlege on electronics, but I have authentic listening capabilities. Is it good idea to buy an old gear of tube pre amp. around 10 or 15 years such as Audio Research SP-15 or something similar (the newer one within my budget is better of course).  I would prefer a stable, long time use gear without much trouble.
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Also, thanks for all of you for your kind response and help or suggestions. Best wishes for you to have pleasant listening too.
The classic SP-15 is a classic ARC pre & cherry ripe for high end mods imho. Bare is mind, it is quite old, so unless you find one already refurbed unit, I would look for a stock example in good nic & save up for a refurb incl: higher end caps, some nice WBT rca jacks, Furutech IEC & some nice matched NOS tubes. The only caveat is you’ll need single ended cables. Also, the included phono stage is ok, but i’d look for something like a 2nd hand ARC PH3 SE if you want a decent matching phono stage.
For $3000, a PH-3se phono stage and an LS-16 line stage might be better than an SP-15, don't ya think?
@bdp24, Sure. But the SP15 would be fun to go all out modding ;) The look and vintage of the two components would match up nicely too.
True. I love the look of matching faceplates, especially ARC's and McIntosh.