Audio Research Ref 10 vs 40th Anniversary preamp

Bifwynne, I traded in the REF 5SE for a 6.  Couldn’t pass up the deal Audio Research offered.  I don’t believe the trade in/up program is still ongoing.  But when it was in effect, they gave me 75% of MSR price. 

Enjoy

Tattoo.... no doubt you heared what you did. Congratulations, I do consider the REF 6 to be outstanding.  I’m sort of waiting for a REF 10 at a price I can’t wskj away from.  Not there yet.  However, when Audio Research comes out with the next REF unit above the 10, people will sell their 10s to get the newer unit and maybe I could afford it then.  

Enjoy

There’s no discernable difference in the basic circuit besides the microelectronics. The output film caps and the original PS 6550C tubes used are different. There’s a noticeable difference in sonics between the REF40’s SED Winged "C" 6550C and the REF10’s Sovtek WEs with the former being a little warmer and a touch more laid back and the latter emphasizing the leading edge and a little more upfront. Can’t speak to the caps, but I’m sure they’re likely the rest of the difference. I prefer the SED winged Cs, but you may like the current tube and maybe the REF10 better. I actually like the Sovteks better in the REF10 phono than the SED Winged Cs but neither are my favorite. Go figure.

Run dont walk and listen to the Coincident Line Stage
it will sound more transparent,open and as dynamic as the Ref 10.
Unlike AR, Coincident is made with point to point wiring no circuit boards, no capacitors in the signal path, Direct Heated Triode 101 tubes and seperate 45 lb. power supply.

As above,Optimal Enchantment (great name for an Audio shop) is a Hallmark for retail brick-and-mortar that has been around for a long time. I can remember their ads in Stereophile / TAS back in the 1990's. Good to read that these guys are alive and well.Happy Listening!