Anthem STR or Lyngdorf TDAI 2170?


I recently moved house and went from a listening space that was pretty generous to my current setup (Cronus Magnum II + B&W 805D3s) to one where the soundstage sounds really flat and underwhelming. Because we watch a lot of movies, I’ve also been running an integrated (Rotel 1592) and using a splitter to switch between that and the Cronus depending on the source (music or movies).

It’s a lot of equipment and wires for a small space and, given how lackluster the sound is, I want to consolidate everything by leveling up to an integrated with room correction.

I’m stuck between an Anthem STR or a Lyngdorf TDAI 2170 (or 3400 if it’s leaps and bounds better than both).

Reviews and comments on both are equally impressive. Has anyone sampled both and have a POV on which I should go with?
jwh2
Never heard the Anthem. The Lyngdorf makes every set of speakers ive ever hooked up to them sound fabulous. With room perfect active it sounds like a pair of high end head phones. That said I think it does better with full range speakers or monitors and subs than just monitors alone. Tightens everything up tremendously. If intereted in a new one please message me. I have a great dealer and great price. 
@mofojo Thanks for the feedback. I have demoed the Lyngdorf and I thought the preamp section was perfect for me. I was not a fan of the amp section so we tried an expensive external amp at the demo and it was lights out great. Now this may have been because the 2170’s amp was too low powered for the Paradigm Person 5F speakers I heard or maybe because the unit had not been played for a while.

I have gone back and forth between the Anthem STR pre and the Lyngdorf preamp section of the 3400 (I want balanced output with AES48 balanced standard support). The unheard STR pre makes more sense because I would not waste money on a unused amp section. However, recently I went back to reading several reviews of the 2170 and they took me back to the demo I had 11 months ago, confirming the great things I remember hearing.

The dealer that has the Lyngdorf also has the Anthem STR integrated, so I will demo that units preamp section out to an external amp to mimic the STR pre. However, my feeling is that the Lyngdorf will win out because of likely a better DAC and the phenomenally quite nature of the unit. I will give this dealer my business for the preamp even if it is not the lowest price.

BTW - The room I will use the DSP is this one, https://systems.audiogon.com/systems/7605
The speakers I will likely buy are this one, https://www.musicdirect.com/speakers/Yamaha-NS-5000-3-Way-Bookshelf-Speakers

So if you have any thoughts on the Lyngdorf taming these savage beasts for my room, please share.
@yyzsantabarbara 
Hurry up and buy those yamaha speakers as I can't wait to hear what you think. They look amazing.... Hoping the sound matches. Good luck.
yyzsantabarbara ,
Please report back with your findings of the pre amp section shootout between the 2 units. Interested for sure.
One thing about the Lyngdorf that I believe to be true but I am not positive about is that it will lose resolution if using as a preamp and not going to it's own class D external amplifier via a digital connection. Maybe someone can correct me here if I am wrong. 
Another thing to consider is the Lyngdorf absolutely sounds better after being on for 24 hours. I leave mine on 24/7 with the display off. If they had just turned it on it would make quite a bit of difference IMO. Would be interesting to have your dealer turn it on the night before you come back and try the unit as a whole package again. 
@mofojo  I emailed Lyngdorf and asked whether the system is diminished, especially Room Perfect, if I used an external amp.

Me: "I am interested in the 3400 integrated. I would like to clarify if ROOM PERFECT processing can be outputted via the analogue XLR outputs into an external amp. I know that non-ROOM PERFECT output can be sent to an external amp. My confusion arises from comment I heard that said that the 3400's amplification is essential for ROOM PERFECT to work. That is an external amp cannot do ROOM PERFECT."

Lyngdorf:
Hallo
RoomPerfect will function no matter how you output the signal - it just requires full-range stereo setup to work

so - no problem to use external amplifier(s) !

Best regards
Flemming Smith
LYNGDORF AUDIO

Thanks for the idea of keeping the unit on. I will definitively ask them to do so before the demo. I would love it, for the short term, if I could just use the 3400 and my analogue sources without an external amp. The Yamaha may also play better with the Lyngdorf amp versus the Persona 5F (which sounded great with the config and big demo room I described above). 

BTW - I am looking forward to try the EtherREGEN if I get the 3400 for streaming vs getting a USB D-2-D streaming solution.