Actually a few more points, I should reiterate that the unit I have is the Conductor 3x reference and that is US$2144. You can get it from Burson with the Audeze LCD3's for US$3730. If you want some new headphones and a head amp/dac, even if you don't use it as a preamp, I think that is outstanding value. The LCD3s are beyond sublime.
I also decided I needed some closed back headphones, as the LCD3s project sound into the room like a pair of bookshelf speakers when you turn them up. So I also got some Audeze LCDxc closed back headphones and they are AU$1000 cheaper than the LCD3s but they are very close in performance, they don't sound $1000 cheaper. And they don't leak sound and they isolate really well in noisy environments. And all the service I have got from Audeze has been outstanding also.
To get a speaker based system that sounds as good as the conductor 3x reference/Audeze LCD3 or LCDxc combo in my estimation you would probably have to spend 10 times the amount.
I have a Rotel RB1080 power amp and a pair of Dali suite 3.5 floorstanding speakers and it is a great system, but the Burson has made it better than it was with the Nuvista.
And the Composer 3x reference is US$1144 on pre release sale now for US$915. So it probably isn't as good as the Conductor 3x and I haven't heard the Composer but I have no doubt it has excellent performance and is great value. This review is excellent. This reviewer rates it a better DAC than what's in a $6K macintosh integrated amp. That is a seriously impressive performance:
My modded CD80 is beautiful it has a wonderful timbre, and simple acoustic music, including hi quality vocals like kd Lang, Sarah Vaughan and Marlon Williams sounds so amazingly musical and transparent. The Cambridge 840c on the other hand is incredibly detailed. It has a fully balanced layout, twin Analog Devices AD1955 24 bit DACs, true balanced XLR outs, use of DSP processing to up-convert the signal to 24bit/384kHz. The detail it extracts is amazing and it handles complex layered music so well and has an awesome soundstage. It is a few years old now but the technology is impressive and was regarded as best in class by more than one reviewer. I had been tempted to upgrade it with burson op amps and low jitter clock but never got around to it.
Why do I like the conductor so much as a DAC? Well I love my two CD players and the Burson DAC takes the best of both of them and combines it. The burson is incredibly musical and incredibly detailed at the same time and has a sensational soundstage. I'm sure there are better products out there but I'd probably have to spend a lot more money.
Burson's combining of a top end headamp, DAC and preamp with exceptional Bluetooth is an unbelievably good one-box solution for me, someone who has a speaker based system and wants to listen to headphones too.
Just for the record, it had been about a decade since I had upgraded any of my hifi gear. I was really happy with what I had. But neither the 840C or the Nuvista had a headphone socket, and I was due for some new headphones to upgrade some excellent but aging closed back Yamaha professional series I had. So I splurged on the Burson/Audeze package.
I love my Rotel RB1080 power amp. It grabs speakers by the balls and makes them sing, it does everything well and the bass extension is remarkable, detailed and tight. But it might be next on the upgrade list
One final note. Planar headphones are unbelievable. I had no idea they would be so much better than conventional drivers at the same price. If you haven't listened to some give them a try
cheers
Sam