tangibleOk, let me add more oil to this DX240 vs DX300 heated debate
As usual, this is how I hear it based on my listening experience, using Traillii w/First Times cable, playing the same hi-res file, volume matched in every comparison. I already covered functionality difference and we all aware of DX300 amp card being 2x bigger which should give more room for creativity in future amp releases. This comparison is between
DX240 with a stock
amp1mk3 and optional
amp8 vs
DX300 with a stock
amp11mk2 and optional
amp12.
For those who are used to my pictures with a granite-countertop background, it's close to noon here and I had recessed lights on in the kitchen, so granite color looks off, just saying
In comparison of
DX240 (amp1mk3) vs
DX300 (amp11mk2), when it comes to tonality and sound sig, the main difference I hear is the bass having a bit more weight and stronger impact in DX300, mids/vocals being more neutral and less colored in DX240, and treble being smoother in DX300 while having more sparkle and a bit more air in DX240. From a technical perspective, with this amp config I hear DX300 soundstage to be a touch wider and to have a more holographic imaging, and also having some improvement in vertical dynamics expansion.
Switching to
amp8 changes
DX240 sound to a wider soundstage with a more holographic imaging that matches closer with DX300 w/amp11mk2. Also, w/amp8 I hear DX240 to have a blacker background which improves the perception of vertical dynamics expansion to match closer DX300 (amp11mk2) performance. Furthermore, amp8 adds a little more impact to the bass which brings DX240 closer to DX300 w/amp11mk2 as well.
Switching
DX300 from
amp11mk2 to
amp12 makes its sound smoother in tonality, a little more laidback in presentation of the sound with a softer bass attack, similar retrieval of details and a slightly narrower soundstage. DX300 w/amp11mk2 is more revealing, brighter, faster, and with a wider soundstage expansion.
When comparing
DX240 (amp8) vs
DX300 (amp12), DX240 bass is faster and more articulate while DX300 is slower and softer, DX300 tonality is smoother and warmer while DX240 is more revealing, more transparent with less coloring and a touch more sparkle in treble. Also, DX240 soundstage is wider in comparison to DX300 w/amp12. But you have to keep in mind that I'm comparing DX240 w/amp8 and DX300 w/amp12.
My personal preference is
DX240 w/amp8 and
DX300 w/amp11mk2.