2 DSP Factories
My experiences with the DSP Factory has been mostly very good. Except for the software limitations mentioned in some of the other posts, I am very pleased with the results. Both live (up to 6 piece bands) and "live" in the studio these cards have given excellent results. Although the converters are older technology, they still sound nice. With recording sample rates up to 32 bits, the card won't be obsolete any time soon unless you must have 96 KHZ or higher. I usually record at 24 bits and prefer the sound to some of my friends recordings on newer cards with 24 bit converters at similar sample rates.
When I bought my first DS2416 more than a year and a half ago, it was impossible to find an AX44 I/O. After waiting for my local Pro Audio store to try to locate one, I decided to buy the last DS2416 they had in stock in order to have 4 analog ins. With my stand-alone CDRW deck converters into one of the SP/DIF inputs I could record 6 tracks at once.
This was essential for tracking combos live - the thing I do most. Recently, I purchased an M-Audio Duo to interface with the remaining SP/DIF port giving me 8 tracks at once.
The amazing thing is that I recently UPgraded my tracking computer from a Cyrix 110 MHZ processor to an AMD 233! With 128 MB of RAM and a second HDD (40GB but only 32GB available) for tracking, I have had no problem tracking 6 tracks at once - except that the meters had to be very small on the old computer or they tended to update too slowly.
I have recently found an older version of Cubase VST (4.6, I think) that gives me full control of the DSP Factory's effects processors. I was using Vegas Pro V.1 which not only did not support the effects, but I had to use my hardware mixer as well. Once I am familiar with Cubase, the full power of the DS2416 should be available.
Given the limited processor power available on my original tracking computer, a DSP-based system was necessary and the DS2416 was available for $299 CAN (about $200 US). The next lowest priced DSP-based system was close to $2K.
All things considered, this was the best solution for me then and remains viable. Especially considering that I was founding a company at the same time and had little money to put into my hobby. You could do a lot worse even compared to the "latest" technology.