The TD-8 has L and R Master and Direct outs, for a toal of 4. It also has a headphone out, but that is chained to the others I think. Sounds like the TD-10 has eight.
But keep in mind that the TD-8 is $799, and the TD-10 is $1499, plus another $299 for the expansion card if you want to get it (this will bring it up to par with the TD-8 soundwise, since the TD-10 is older. The TD-10 then also supports cymbals with three strike zones, which the TD-8 does not). These are retail prices, ebay can probably knock a couple hundred off.
So if you need the individual outs, you might need the TD-10, but there are ways of getting around it. And since the sounds in the brain are pretty good, you might be able to get away with mixing them down to four channels in the brain (stereo plus snare and bass). Maybe not, depends on your needs.
And then there's always the option of recording your playing as midi into the computer (if you have one setup for it), and then playing back the MIDI through the brain and recording the audio it outputs. This works in theory, bu I've never actually done it. This could be done multiple times to get as many 'outs' as you need.
But it sounds like you are looking to use the edrums as a placeholder for real drums, in which case, it's not that much of an issue.
But keep in mind that the TD-8 is $799, and the TD-10 is $1499, plus another $299 for the expansion card if you want to get it (this will bring it up to par with the TD-8 soundwise, since the TD-10 is older. The TD-10 then also supports cymbals with three strike zones, which the TD-8 does not). These are retail prices, ebay can probably knock a couple hundred off.
So if you need the individual outs, you might need the TD-10, but there are ways of getting around it. And since the sounds in the brain are pretty good, you might be able to get away with mixing them down to four channels in the brain (stereo plus snare and bass). Maybe not, depends on your needs.
And then there's always the option of recording your playing as midi into the computer (if you have one setup for it), and then playing back the MIDI through the brain and recording the audio it outputs. This works in theory, bu I've never actually done it. This could be done multiple times to get as many 'outs' as you need.
But it sounds like you are looking to use the edrums as a placeholder for real drums, in which case, it's not that much of an issue.