Lyngdorf 3400 flexibility vs 1120

I have a 2170 and am thinking about a 3400.  The increased power would be great to drive my Maggie 3.7i speakers. I currently use a Parasound A21 power amp fed from the analog output of the 2170.  I also use a SWARM DBA sub system.  The 2170 feeds a DAC via the digital output.  The DAC feeds the SWARM amp.  This works very well as the 2170 has only one analog output.  If the A21 was in the same rack as the 2170 and SWARM amp I could feed the SWARM amp with a looping output from A21.  

My suggestion is to purchase the 3400.  You could drive the speakers with the 3400 and drive a quality headphone amp with one of the analog outputs if you don't like the 3400 headphone amp.  If I am correct you can use the BYPASS mode to listen without RoomPerfect while using headphones  Use an outboard phono stage, not the one in the 3400.

I agree customer support is difficult to receive.  I have been contacting Anders Borbye at contact@steinwaylyngdorf.com.  Anders is very helpful but I receive his answers 12 hours or so after I send the email, longer on week-ends.  He is in Denmark.  That is frustrating.  I also live in FL and have contacted dealers but there seems to be no desire to help someone who is not a customer.

I own a TDAI3400 and have a friend with one , you are getting very good advice on this thread so far.

There is excellent UK dealer and owners support on AVforums.com 

It's such a shame that the dealer network in the US is nothing like the UK as home demos were offered here widely and room perfect is truly awesome in what it can do. 

Thanks for your thoughtful responses.

2171 is discontinued? No more software updates?

Dac is old technology? Significant?

2171 can run subs rca out & headphones

Digital coax out to dac and head phone amp combo eg

Chord hugo2 is a very good piece used under us$1800.

Would a 2171 make sense for $3k + $1800

Vsv$7000. for 3400 which I not seen used.

brownsfan  2171 as a purchase today?

Vs pony up for years of enjoyment?

@bob52r I guess my point was that I personally would not put much money into audio if I knew I was going to move from an apartment to a house.  I would wait until I found the house, then build a system around the particular room constraints (if there are any) once I understand what those constraints are. 

As a temporary measure, a really nice headphone system can get you through the apartment phase and perhaps still have value as a second system once you are in a more permanent location.

You mentioned that you have a dedicated, well treated, room in your current home. There is no substitute for assembling a system around your room constraints and then treating the room.   No amount of money is a substitute for that approach.