Just had a quick listen and this is not by any means a thorough review...

Two of my "reference" recordings are off Kate Bush's 50 Words For Snow album (the 24bit 96KHz version), these being Misty and Among Angels, on listening to these the difference is apparent to the stock Squeezebox Touch's built in DAC (note I am using the EDO mod).

There is more detail for start of, things that were distant sounds for instance like the ride cymbals on Misty are now more there and part of the mix, the bass on the track seems to go a lot lower as well, which is no mean feat on a pair of Celestion SL6S's.

With the track Among Angels which isn't complex at all there is an air of competency to the overall delivery, the middle frequencies don't "ring" as much and it all fits together a lot more completely, also that sibilance or digital harshness seems to have all but disappeared from the sound

One thing I have noticed tho... And it may be me, the vocals and the overall area around that middle part of the sound spectrum sound slightly "boxed in" and not floating out of the speakers, I will let the unit break in more before making a final call on that observation though.

I tried the 16bit 44.1KHz track Good Man in a Storm of the remastered Level 42 World Machine album and it sounded dreadful, don't know what was going on there, I will try the original unmastered CD I think using the optical out of a cheap CD player I have hanging about to see if it is the usual brick wall approach I am hearing, but it was quite unlistenable.

I then went on to a 24bit 192KHz vinyl rip of Michael Jackson's Thriller album, the DAC handled this with aplomb and it was quite a good, relaxed, detailed sound, I liked this a lot, seemed again to be more detail.

I am wondering... Does the Bushmaster have preference or tendency to like higher resolution files as this is where I had the best initial experience?

Note: the Squeezebox Touch was connected to the Bushmaster DAC via a home brew Belden 89259 coaxial cable and then connected to the Pulse amplifier by home brew twisted Belden 89259 cables terminated with gold plated Ixos phonos.

Anyways I will keep pushing on, the initial impression though is good and is a worthy upgrade, just bit concerned about those 44.1KHz tracks, but it's probably nowt.

Russ