What is preferred/best contact cleaner these days?

My audio friends and I have used the Q45T for the past several years. Yes, it is expensive, but it is the finest sounding of all the contact enhancers including Total Contact, Quicksilver Gold, that we have tried. Apply once and probably the only time you’d ever need to apply it again would be on AC plugs that you occasionally disconnect from the wall outlets prior to a storm. I’ve disconnected my 4 plugs from wall outlets about 15-20 times over the course of using the Q45T and still haven’t felt the need to reapply. The stuff stays on well and remains slightly moist so no drying out. The sound just keeps getting better the longer it’s on for up to 4-6 months. You can argue with my opinion, but who cares. Try to find a better spent $345 for the gain in SQ in other ways. If your system is not seriously extensive, you can share a bottle with 2 and maybe 3 friends and hit ALL the contacts.

Bob

@vinylvalet 

No we have not.  We have read many comments from those who've used it and other enhancers and have been more impressed with both Total Contact and especially the Q45T. I have about 245 individual contacts to treat if you count each pin on a tube of which I have 9 tubes in my system.  My friends and I are pretty heavy into trying out many different tweaks, many of which have raise the SQ of our systems considerably.  If one of us tries something that really works great, we share it with the other two and it usually is a group home run.  The Q45T is just one of them.  If you are gonna go to all the trouble of treating all of your contacts, you'd really like to have as much prior info on the different choices as in my case, it's about a 3-4 hour job to do mine.  Not something you want to have to do over and over.  I'd pretty much guarantee that you'd love the results and even more as the weeks go by and it causes jumps in performance while you just sit there and enjoy the music.  

Good luck

Bob

@rc22 

It is easily removed with 90% alcohol.  Q45T