Thank you - But keep in mind, It is here *mostly* for getting corrections. And then when 100% right, would then be included with the KX help file. I'M NO EXPERT! To be sure, I'll have to load a sonar project - use winnMM, with many audio tracks and make note of the CPU difference. But up till now I havent 'heard' any differences. Now keep in mind, this project started out for Live cards, then A2's were added. Lives have 2 diffeent codecs for the front and rears - A2's are not this was. By default (with default DSP) WAVE 0/1 and Wave 4/5 is routed through Front (but is swapped with the SWAP FRONT REAR switch in KX mixer) the other are routed to potentiallay the 'other' codecs. So some of the info in the knowledge base is not appliciple to A2's Changing the DSP changes that also. If WAV 0/1 is the only one capable of AC3 decoding (now that I think about it, I think you are right) - I will change the diagram to relfect this - I will also test this/look into further. again - the reason I made this diagram was to do exacly this, collect info for an updated help file for A2's. These questions will lead to corrections to the diagram - so thank you. I dont see any differences personally with WHAT ASIO X/X uses less CPU, nor do I hear any quality differences. This IS DSP configuration dependant. Wave 2/3 is the MIDI synths - The Wave 4/5; 6/7; 8/9 - are names to represent how they connect to the outputs. FRONT, C/LFE/ & REARS. It took me a while to understand the reason for this also. Although the WAVE device names dont change - I beleive this stems from MANY changes to KX Driver over time. And originally for 10K1 cards like the Live/ APS. Wave HQ - being responsible for BYPASSING the dsp (which WILL convert to 16/48) - will allow 24/96 to be output. MP3's dont usualy come in this format, so while I may hear a slight difference - it could be more psychological ?? What I do that I *think* sounds better - is to use a winamp SRC (resample up to 24/96) and use waveHQ - but avoide the DSP (add eq with out the DSP) - to me this sounds significantly better than using wave X/X. But its definitly less stable for winamp, and uses more CPU. The only real usefull setting I can tell is the 'TANK MEMORY SIZE' with is the ammount of 'XTRAM' seen in the DSP - by default its 256K - I set mine to 2M - for longer/more DELAYS. Not really all used, but I;'ve been trying my hand in making delay plugins with dane and didnt want to exceed the XTRAM usage - But Ive never even got close to using it all. But potentially adjusting other buffers could help with some problems in some PC configurations/card models. 1- YOU CANT PASS 24/96 through the DSP and KEEP 24/96 - the DSP (hardware level) converts to 16/48 first. 2 - 24/96 playback is sent parallel to the DSP AND P16V (Via the 24/96 Router) - to get (or better to say 'hear') 26/96 - uncheck the switch for 10k2>I2S (is using analog speakers) or the 10k2>SPDIF (if using digital speakers) - to prevent hearing the DSP processesing this and getting MIXED at the output. - This is how I understand it, and I could be wrong - as I dont have the means of anaysing the output - you will note that 24/96 content will be LOWER volumes - which would make sense condidering how it would convert to 16/48 - loosing dynamic range compared to th original 26/96. Looks like its tailored to suit your needs - THE BEST thing about KX is that ability. Personally I like using MIXY4x2 for converting stereo to mono - for the 1 reason of ability to use KX automation to adjust its 'PAN' (effectivly its a 8/2 mixer when used in mono, but is flexible enough for use with stereo as well) I have a few DSP configs - based on what Im doing - 1 for TV (using prologica to upmix stereo to 5 channels) - another for DVD playback (using P16V sending DD dceoded - directly OR through DSP to down mix to my 4 speaker set up - basically I have descent FRONT monitors for DAW, and crappy ones for the rear, using DSP I can get a really good sound from this set up) - another for DAW - which is quite complex (I start out with this) and ususally add connections - but I do alot with MIDI to start with - then add audio to it - I have a few configs that are SONG / Sonar Project dependant and save the DSP config with that project - but I start out with that. Wave HQ has NOTHING to do with ASIO - The 'master port' stuff (AFAIK) is for syncronizing multiple tracks/outputs (OR to assign the MASTER BUSS in a mixer, as opposed to a MONITOR for performers to hear while recording) - as for quality differences, mentioned in the KX docs/knowledgebase/help file - I beleive are more related to the output codecs I mentioned above. Dont get congused by how the DEFAULT dsp connected ASIO 0/1 with wave 0/1 - in your DSP this doesnt seem to be true. Also keep in mind - I have changed my KX router so that Synth 1 and 2 DO NOT share the same FXBUSS - as well as changing what FXBUSS MIDI CC16/17/18/19 outputs rout to.