Believe me, I wondered if I was nuts to replace $25,000 of electronics with the Lyngdorf! I found I liked the Lyngdorf DAC, so I sold the PS Audio Directstream. I'm using a Bryston BDP-2 as well. I use the Bryston as a Roon Endpoint and output via USB (I bought the WyWires Silver USB cable) to the Lyngdorf. I notice that you're using the AES connection with your's. I have a number of DSD recordings on my hard drive and the USB plays them back nicely but AES will not. I don't know if you're familiar with Roon but the Bryston does function as a Endpoint player as does the Lyngdorf. The Roon architecture requires that you have a "Core" to store the Roon software, an Endpoint to play, and the Remote can be your Iphone, Ipad, or another computer on your network. For best results you need to have an ethernet cable attached (the Lyngdorf can connect wirelessly and function as an endpoint but higher resolution playback is limited). I THINK the Bryston is better as a player but I'm considering one of the Innuos players that combine the Core and Endpoint into one unit (Antipodes also has a player that does that but it's a lot more expensive). I've also had fun streaming some internet radio stations with the Lyngdorf's VTuner. A favorite station is Radio Paradise.The 3400 replaced a Schiit Yggdrasil DAC + Ayre pre + Benchmark amp combo.
My 3400 doesn't have the optional HQ analog module, but I may get it to see if there's any benefit to adding the Yggdrasil back in. I do like that Schiit.
Bass definitely improved with Room Perfect. The soundstage is maybe not quite as big now, but it's asking a lot to top that previous combo, which cost more than twice the Lyngdorf. It has a noise floor equal to or better than the combo; detail retrieval is also good.
Haven't played around with Voicing yet. It seems complex, but I'll try to figure it out one of these days. Also, haven't explored its file streaming capability... still using my Bryston for that.
The 3400 can be controlled by the remote, or an iPad app. The volume adjustment is silent, which I like. Would prefer if it came in a silver finish.
I have a bunch of unused cables now!