Where in my chain is the Bass being lost?

Computers aren't good sources but you seem to be using it in a good way. I think Foobar is a good player and wasapi the way to go. The D1 is VG for the cost but a little on the leaner/glassier side of things. The Beatles remasters have some issues but it's not only them that have you questioning things. The original records smoke them or the current record set.

I was using TC Konnekt 8 firewire asym interfaces with wavelab as player via ASIO when computer audiophile was still talking about bit perfect tos out of Itunes because it was what sounded best to me at the time and I still haven't heard the USB interface I like as much though Weiss has tweaked the firewire end to a very high standard. I could never get what I considered as good as dedicated kit results so I don't use a PC for playback or server but use a costly dedicated server/streamer setup instead. 

Just wanted you to know where I'm coming from. If commited to computer/USB or unde $1k as source, I'd check out something like the Halide bridge and try a bunch of DACs or as an all in one, I like the Music Halls DACs at moderate prices.

Unless your amp is a complete piece of trash, the lack of bass is simply due to your transducers, I'm afraid.  There's no way a player, source, or especially a cable, could possibly attenuate a band to any substantial degree

His amp and speakers are plenty warm enough. Foobar is bit perfect and his dac measures flat. Must be perfect as is.

*points finger at something that is NOT foobar, wasapi, the usb cable or the computer*

I'd put money on the problem concerning your files, dac, amp, or speakers.

Quote:

Originally Posted by KT66 

Lots of bass when playing CDs on my Ikemi, records on my LP12, or indeed listening to the radio via my Kudos Tuner.

 

I think I am expecting too much of the D1, as a desktop headphone amp it is good, but plugging it into a decent system shows its flaws,

I have now tried it in others main HIFI systems, and it does sound thin, in fact many preferred the sound of the HIFIMAN HM-601

plugged straight into a preamp.

I have never heard the D1, it could very well be the problem.

It's not expecting too much to expect bass when bass is called for :)

I recently replaced my uDac2 with the Audioengine D1 feeding a Dayton DTA-100a t-amp. Using KEF Q15 speakers. The Audioengine D1 does not lack for bass (at least in my system). Nice dac (warmer than the uDac2) that has very good synergy with the somewhat bright t-amp. Deep soundstage and very good instrument separation.