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

@grannyring Given the 2170 is about 3 years old, do you think the digital to analog conversion of 2170 can be vastly improved? Given how this keeps improving every year, I'd be curious to know if 3400 has a difference compare to 2170 in terms of digital to analog conversion in addition to power.

This is the only reason it's giving me a pause of having  a 2170 as a long term gear - what if the digital to analog conversion gets outdated fast.

@grannyring
@kdude66
Question for you guys.  I just spent a lot of time on optimizing my DI's with room treatments and adding subs.  The subs are in the corners and the DI's well out into the room. See my pics--https://systems.audiogon.com/systems/7021
So I read that the room correction works best with speakers right up against the front wall.  So what is your experience with speaker placement/room correction.  Is it compatible with subs? Thanks.

The 2170 isn’t a class d amp per say,it works differently than other class d amps.
The 2170 and probably the 3400 as well,not enough info on the 3400,use a Texas Instruments chip that converts any incoming “Digital” signal into PWM and then any kind of Dsp is applied to the signal at this time,that would include volume setting,room perfect,and the preset voicings,which I don’t use but have played with.The finished dsp corrected amplified signal is then converted to a analog waveform right before the speaker outputs.

I know I had the same concerns before buying one of being outdated in 2 or 3 yrs like any other dac,but with the conversions that are taking place from the digital side only I don’t see any concern to be obsolete any time soon.

Now if you do use the Analog inputs,the incoming signal is converted to pcm 24/96 first before being converted to PWM,I can’t recall the dac chip offhand,It’s a top quality chipset that’s common in today’s technology but certainly will be obsolete or outdated as time goes by.I don’t use any of the Analog inputs,I only stream a Digital signal from my Roon endpoint via USB,so I personally don’t worry about it.
I also use HQ player in combination with Roon and tidal,and Offcourse HQ player uses software for its upsampling and filtering with lots of everchanging capability.All I know for sure is any change that I make with the HQ players settings definitely are reflected in the sound.

I don’t know anything about what Crown is using nowadays,I haven’t used any of their gear in yrs,so I can’t comment on that.

Kenny.

I purchased a 2170 about 3 weeks ago.  I was driving my Spatial Audio M3 Triode Masters with a Linear Tube Audio MZ2 and  ZOTL10.    I am extremely happy with the results and what Room Perfect has done both for digital and analog.  It is like a veil has been lifted from the speakers.

I have Bluesound Node 2 connected to the digital input.  Previously I had the Bluesound connected to a Denafrips Pontus DAC.  I still have my Technics SL-1200GR TT/Parasound JC3 Junior in place connected the analog input.  

I have sold my preamp, amp and DAC and couldn't be happier.

The next step for me is to rearrange my room to place the speakers on the long wall and to add a second sub.  I have one Rhythmik L12 and just ordered a second.

I did not place my Spatial Audio's against the wall since they are open baffle.  Right now the single sub is placed between the Spatials but I will move the subs outside of the main speakers as Lyngdorf recommends when I rearrange.  

Nick