Who has Luv for the Lyngdorf 2170 and is thinking about the 3400.

I would like some advice please.  I have a 2170 and like it very much, I run RoomPerfect but have not made any adjustments to the filters.  My mains are Harbeth C7ES-3's and a REL single sub.  Where should I place the filter cutoff and what kind of filter should I use? Should I set the filters before I run RoomPerfect? Thank you.

Yes you should adjust the filters and then re run. I would set the crossover as low as your speakers can play safely and sound good at full volume you listen to. Maybe 70hz? Just a guess. 

Kissov356,

For your setup use the Butterworth filter for both high pass/low pass.  Cutoff - is up to what sounds best to you.  I usually start at 80hz and work down from there, if needed.

Good luck.

Bullit
I completely agree that the direct analog in from a pure analog source, my Gold Note PH-10 phono stage sounds truly magical.
It was just the analog in from the Vault 2 DAC that left a lot to be desired.
The way the 2170 processes digital signals is something special for sure

Typically I’m not someone who posts about new audio items as most have a love affair with any new piece of audio equipment but I was a longstanding 2170 owner and my 3400 showed up today(Big thank you to Tony Barnette at Ellington Hifi for somehow getting me a unit when they are seriously backed up on orders). I was using my 2170 in a mixed use 2.2 channel theater and audio setup and really loved the functionality and sonics. 
   Just opening the 3400 I wanted to post about what extras you get. I think most people know there is a streamer (haven’t used yet) but some not so obvious upgrades includes both rca and xlr outputs which is great for my subs. While on the subject of subs the 2170 blended them totally seamlessly and simply and I’m sure the 3400 will be the same. There is an aes/ebu input which is perfect for my Aurender N10. There are headphone inputs as well, the remote is a step up and more ergonomically set up for right handed use. What’s really cool is the Lyngdorf app allows total control of the 3400 so no remote needed. USB module is standard as opposed to an upgrade and the display is bigger and easier to read at a distance. I’m sure I’m missing a bunch but wanted to touch on those differences for those choosing between them. Too early to compare sonics between the 2 units but even after a few hours the 3400 sounds eerily similar to the 2170 but it has better control of my Vandersteens. Honestly, this is a piece worth getting excited over.