Vinyl and Lyngdorf TDAI-3400?

I'll bite.  What is a Lyngdorf TDAI-3400, and why is it different?

Lewm.
The Lyngdorf is a fully featured digital integrated amp.
There was a lot of threads couple years ago on its predecessor the 2170, one of which I owned.
Seemed to be the bees knees at the time but I quickly found it to be a little false for my tastes but not knocking it at all.
Must admit since the 3400 released it seems to be all quiet on the Lyngdorf front.

https://lyngdorf.com/tdai-3400/

Yeah, I auditioned a Lyngdorf a few years ago, too.  Naturally, I can't remember the model. I dragged my speakers and my PrimaLuna to the store, and got the guys-in-charge to conduct the comparison.  Even the salesmen thought the PrimaLuna sounded better.

I owned the Lyngdorf 2170 two times!  Really wanted to love it, but only kind of liked it at after extended time.

My biggest gripe was vinyl playback.  I tried it with a few different phono stages, and everytime same result - "clean" and "no soul".  I'm certain it is the ADC going on.

Other's will probably have different opinions, I'm sure.

Robert
That summed it up nicely imho

That's what I imagined, is impossible the digitalization of phono signal do not affect the sound characteristics of vinyl... in a not so pleasant way...

I presume that the same applies when using DSP, and room correction? 

OK I use Lyngdorf's predecessor a TACT (Lyngdorf was a partner) 2.2x which is a digital preamp with room control, bass management and built in DAC. Everything that goes into it is digitiized to 192/24. Room control an bass management is 48 bit. The benefits are absolute control of frequency response, the best subwoofer integration, dynamic volume control ( the bass and treble sound the same no matter what volume you are listening at) and razor sharp imaging you can not get any other way because both channels have exactly the same frequency response curve irregardless of position in the room. All these benefits apply to any source including vinyl. My phono amp runs into a Benchmark ADC which is connected to the TACT. The TACT does have a built in ADC but the Benchmark is better. Vinyl sounds like vinyl except with incredible bass and better imaging. Any down side? Only psychological. I laugh to myself when I get the digital sounds like crap story. 

That should have been "dynamic loudness control." Sorry.

Sounds good Mike
But the 3400 does NOT have those powerful capabilities to my knowledge.
And that is what the op was asking about.

Someone can solve a doubt of mine about the Lyngdorf room perfect feature?

this feature only works with speakers with separated sub woofers? or it functions as well with 3 way loudspeakers with a 12" woofer driver for example?

Thanks!

The room perfect worked perfectly with ANY speakers on the 2170 so no reason to think the 3400 would be any different

Room Perfect has bass management, and will work with the use of a subwoofer (or two).

Nothing to do with vinyl but I will add this post about the Lyngdorf 3400.

I am going to demo the Lyngdorf 3400 with a Yamaha amp (or SimAudio 860 v2) and the Yamaha NS 5000 speakers this month. I want to see if the Yamaha NS 5000 is something that will fit into a small treated room and DSP seems essential for my situation. If I go with a smaller speaker I do not expect to get a DSP capable preamp.

The preamp on the 3400 is really good. The amp not so in my worthless opinion. Today, I found out that the ROOM PERFECT processing can be outputted via the XLR outputs on the preamp section to an external amp. That is the amp section of the 3400 is not involved in ROOM PERFECT processing, as was posted here on A’gon on another thread. I heard a similar setup to what I will audition without ROOM PERFECT being enabled and I thought the preamp section was really good. It is super quiet, like a Benchmark AHB2 amp, and it played well even at low volumes. The speakers were Paradigm Persona 5F for that ROOM PERFECT-less demo.

I was considering the Linn Selekt DSM for my potential DSP needs but the fact that they are not ROON READY (and do not plan to be) was a deal breaker. A shame since I would not have to pay for a amp section on the Selekt like I would on the Lyngdorf 3400. I was also considering the Anthem STR preamp (dealer carries all 3) and the dealer said the DSP is not the same level as the Linn or Lyngdorf. The features on the STR are maybe the best for me.

My demo with the 3400 was all on digital files. I forgot how it was streamed but we did use ROON.