facten

Responses from facten

6sn7 and 5u4 tubes
I don't have your amp, but you might want to check with Brent Jesse - http://www.audiotubes.com/6sn7.htm; good selection, good prices ,honest advice - not afflated other than as a satisfied customer 
Best Budget interconnect cables for cd to preamp
Might want to try the entering auctions for Audio Metalurgy Cables - very good cables 
Interconnect/Speaker cables
Signal Cable or Audio Art Cable - both good bang for the buck 
CDP to DAC cable
Suggest contacting Stephen Monte at Quest for Sound (A'gon Guild listing - I'm not affiliated but a happy customer) about IXOS digital cable 
cheap tube integrated for 4 ohm speakers
Suggestion - Consonance Cyber 100 Sig - 50 wpc 6550 driven comes with EH 6550s , nice sounding amp, I switched over to SED6550s , seem to have a little 'authority' to me, but the EHs are good as well. Might want to check out closeout page on A'gon... 
Transport Upgrade
If you are looking at DAC in the pricerangeof the Benchmark you might also want to check out the PS Audio Digi Link 3 (non-modded) , have it in my second system using an Arcam CD 72 a transport. The amp is a Consonance Cyber 100 Sig - very nice to... 
sweetest sounding ss integrated
Portal Panache 
Budget USB DAC
Mightconsider a Lite Audio DAC AM Modified - had one pretty good for the money Pacific Valvecarries the (not affiliated) 
DAC improvement
System 1) Audio Analogue Paganini CD to April Music Stello DA220 Dac to either SoundQuest SQ 88 tube integrated orPlinius 8200 Mk2 integrated - Virtual Dynamic Testament Digital RCa. Previously using just PaganiniSystem 2) Arcam CD72 to PS Audio D... 
Digital Purchase Advice . . .DAC or New Player
The PS Audio Digi Link 3 even without the mods will be a very good choice - purchased one for my second system using my Arcam CD72 as the transport - nice upgrade to my ears 
Which CD would you recommend?
Haven't heard any of them , but just for info purposes if you'res erious about the Equinox I think that amusicdirect (Iam not affiliatd) may still be having a closeout on them, like 40% off list - had entertained getting one - bug to change also -... 
for speakers b&w704
There are also a number of B&W 704 discussion threads ,if you haven't checked them out ,just type in B&W 704 in theblank box on the main discussion thread page - might find some system matching advice in them 
for speakers b&w704
I don't have your speakers, but auditioned them once driven at the dealer by NAD C372 integrated and they matched well. The dealer also had higher end B&W's driven by Classe which was outstanding. Might want to check here on A'gon under member... 
new tubes on auto-bias amp,can be done by anyone?
What amp do you have? Does the manual state or on the manufacturers web site does it state that the amp is auto bias? If it does than enjoy yourself. I have 2 auto biased amps and have gotten into rolling. 
Good integrated amp for Paradigm Studio 40?
Portal Panache - used it when I had 60s