melka_ashur wrote:As far as having the option to hook up a mic, and sing/record an audio track onto the instrumental tracks, do both the pa2x and the m3 have this option? As well as various effects which can be applied to the voice, such as playing harmonies of the voice via the keyboard keys? Both keyboards have pretty much the same capacities with regard to adding audio tracks via the mic? It is another one of my priorities. Again, it is probably better to record voice through another software perhaps straight through the computer, and add it to the instrumental tracks on the computer, but it is nice to have that option available on the keyboard itself like I know many do.
The Pa2x is designed for performing live, including the audio facilities you need for live performance with vocal EFX and harmoniser. It has a 48v phantom power XLR socket and separate MIC input. You can record your playing and audio straight to MP3 on the Pa2x at a rate of 192 Kbit/sec. This is fine for demos e.g. youtube but is not the right format if your goal is to produce professional CD's which require digital audio recording at 44.1 Ksamples/sec (a bit rate of 1.411 Mbit/sec for 16 bit stereo).
The M3 is primarily a studio workstation, and you need other equipment e.g. hard disk recorder/ multitracker on a computer and audio interfaces to produce CD's. The M3 has no harmoniser for vocals, and no XLR input or phantom power, so you would also need a separate MIC preamp with XLR 48v power in order to use a high quality condenser mic. You can purchase a separate harmoniser box, e.g. TC-Helicon, if you need to automatically generate vocal harmonies.
Both the Pa2x and the M3 have a digital audio S/PDIF output for connection to a computer recorder at 48 Ksamples/sec. You would also need to do sample rate conversion to prepare audio CD's at the required sample rate of 44.1 Ksamples/sec.
Because the act of converting samples from one rate to another inside a computer can introduce distortion, some users of both Pa2x and M3 keyboards prefer to use an analog audio sampling box comnnected to their computer, which is capable of sampling directly at 44.1 Ksamples/sec, ready for preparing CD's.
When I've recorded using S/PDIF from both my Pa2x and my M3 to a computer multi-track recorder, I have always removed any EFX applied by the Pa2x or the M3, I converted to 44.1 ksamples/sec using software and I've applied software based EFX at the 44.1 ksamples/sec rate afterwards.
I can't distinguish any difference in the quality of the final sound, I think the Pa2x and the M3 produce identical results as far as quality of recording goes. They both have the same "disadvantage" of digital recording only at a rate of 48 Ksamples/sec. The audio hardware and EDS sample synthesis hardware on both keyboards is identical.
For recording purposes, I don't regard the enhanced EFX capabilities of the M3 as an advantage compared with the Pa2x because I remove all EFX before recording the tracks, and then I play about with adding EFX on the computer. However for live playing, the enhanced EFX capability on the M3 is an improvement compared with the Pa2x.
However the EFX capability of the M3 do not make it a good machine for live playing as a solo musician. In my opinion the Pa2x is the more suitable keyboard for live playing due to the XLR mic input, vocal harmoniser, style based accompaniments, single button controls for into/fill/vaar/endings etc.
But, where the M3 scores big time in the studio is that over 640 Mbytes of sampled sounds are provided as standard (so long as you purchase the optional EXB-M256 card), plus the optional EXB-RADIAS synth card give the ability to model many Moog-type analog synth sounds. The Pa2x has about 128 Mbytes of factory sampled sounds as standard, anything else has to be provided by the user and the user expansion botttoms out at 256 Mbytes with the optonal EXB-M256 card fitted. So, the M3 gives you as standard five times many more sounds than the Pa2x, and some of them are higher quality than the equivalent sounds on the Pa2x.
The M3 also implements Stephen Kay's Karma which is an algorithmic MIDI music generator controllable with sliders on the M3. When controlled by an expert musician, Karma is not repetitive, unlike the Style based accompaniments on the Pa2x, and many people produce records containing Karma generated backing music.
Now, you have to listen to all the demos produced on both the Pa2x and the M3 and decide which is right for you. There are thousands of demos from both keyboards on Youtube. There are also demos on Korg's web sites and at Karma Labs. Also go to a dealer that sells both keyboards, and arrange to spend at least a day in the shop with both machines before deciding.
Good luck making the choice, and if you find it too difficult to decide, buy both of them
