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Apogee Duetta signature

PostPosted: Mon Sep 13, 2010 9:34 pm
by loki
Hi , I too have Duetta sigs refurbished by Jon, I have recently changed the Bass inductors to copper foil,
this took some of the bloat out of the bass, the speakers integrate much better with my room now.
rest of the system is
Oracle Delphi / Helius /kiseki
Whest phono stage
Much Tweaked Pioneer stable platter transport / DIY NOS Tda1541a DAC
Prometheus TVC preamp
Jolida Envoy 200 watt 211 push pull monoblocks
Apogee Duetta Signatures / Apogee Stage

I plan to upgrade the caps to the tweeters when funds allow,
and I'm changing all the front end tubes in the amplifiers to Mullards,
I think I'll stick with the chinese 211s as the nos valves are now silly money.
Having said all that the system sounds quite nice as it is.
Jules :)

Re: Apogee Duetta signature

PostPosted: Mon Sep 13, 2010 10:51 pm
by dasign
Hello Jules,

I also refurbished my DS Xover circuit just over a year ago and replaced all of the original components inside the Xover circuits. I also put all new components in exterior box to be in position to put better components when money will be available. For cap replacement I have used Mundorf Supreme for all values except for the larger capacitor values for which I used Auricaps which are less expensive.

The original coils were replaced by Alpha Core copper foil inductors which are far better than the original wirewound coils. I agree with you that bass is firmer and with better resolution. I used Duelund resistor for this project.

My next project will be to rebuild the Xover with cost-no-object components such as Mundorf Supreme Silver/Gold and oil caps or V-Caps Copper/Teflon. For coils, will probably go with Duelund Cast-Pio series. For resistors will use Duelund Premium cast. For now I just need to start piling some money if I want this project to get started some day...


Re: Apogee Duetta signature

PostPosted: Wed Sep 15, 2010 10:14 am
by loki
Hi Dasign,
Your taste in capacitors mirrors my own, and I too have external crossovers. unfortunately I do not have the money right now for further upgrades, although I do have some nice Mundorf silver/oils that I can use to bypass the tweeter capacitors. I have changed some of the resistors to Caddock MS Gold lead non inductive types.
I am completing the purchase of a barn in France next week so I don't envisage any change for the better
in my financial position in the short term, but once I've renovated the barn it should make a fabulous home for my Duettas, it's about 80 ft long by 26 ft wide, so I should be able to make a very good listening room with that amount of space.

Re: Apogee Duetta signature

PostPosted: Wed Sep 15, 2010 11:18 pm
by dasign
Bonsoir Jules,

We do have pretty good taste for caps :) . You will have no issues optimizing the DS position in such a large room! Once you complete your renovations please post some pictures.


Re: Apogee Duetta signature

PostPosted: Sun Nov 07, 2010 8:54 pm
by User211
Whoa Jules you must have liked my system. You came round for the bake-off - then went out and not only got some Duettas, but some 211 based amps too!

The Chinese 211s I have are actually much better than you would expect - so don't worry too much about NOS jobbies. However, FWIW with my Duettas I rate Amperex first, RCA second and GEs third. With MLs, the RCAs were the better match.

Good luck with that barn!


Re: Apogee Duetta signature

PostPosted: Fri Jun 13, 2014 1:11 pm
by analoghaven
Hello, what would you recommend as far as using analog set-up most of the time ?