Oversampling DAC Vs. Non Oversampling?


What are the advantages/disadvantages of oversampling vs. non oversampling DACS? I have a Squeezebox 3 and I love it, but I want to buy a DAC and I am not sure which to buy. I listen to Internet radio on the Squeezebox most of the time, which is usually around 128 KBPS and sounds good. However, I want to use the DAC for two-channel home theatre as well, and I will route the DVD through the DAC via a digital cable to listen to music from time to time. What to do? Thanks!!
regafan_1972
Matt - I'm sorry to hear it didn't work for you. No excitement I can understand, as some DACs like Benchmark sound less exciting (or too clean), but poor soundstaging is disturbing (for expensive DAC). Benchmark brings tons of low level details and according to review decent soundstaging but Audionote imaging is a little deeper. I'm working on taming my room acoustics that, as you might remember, is far from being perfect. I bought twelve 2'x4'x2" sound absorbing panels and plan to buy 6 more. I was in a demo room where all walls were made of this material and even sound of voice was incredibly pure and directional.

So far Hyperion speakers were the greatest improvement to my system and brought musicality and warmth to neutral (unforgiving) Benchmark + Rowland 102. I've noticed that new generation of DACs use FPGA (programmable logic) ICs to execute filter algorithm. Non-apodizing filter in new Merdidian CDP, with different step response, suggests possible improvements in filtering (ovesampling or upsampling schemes). The main purpose of executing filters in FPGAs is speed. FPGA can do everything required in one cycle (clock tick) that uP would have to do in many machine cycles.
Mattzack2, if you do build that 3.1 Audio Note , be sure to not install the diodes the kit provides for the digital supply board. Schottky makes much better diodes, that will open your highs, and dynamics as you never would have believed. I truly believe that cheap diode upgrade will lift your player's capability significantly higher than the Signature transformer upgrade. You will simply love the sound.
Thanks Muralman.... any advice on the AN Dacs is greatly appreciated. I wonder if you know if the other upgrades are worth it.
You are certainly welcome. You have a fun project ahead of you.

Those diodes, fast as they are, opened the highs fully. Since these are kits, their build depend on the skill factor of the builder. I sent it to my amp builder, and he cleaned things up, shortening wires, but did nothing else new but change out those four diodes.