Yeah gear is always an issue and part of the sound I agree.
But the other side of the coin is any player on this board can walk up (theoreticaly anyway) and play through the exact same rig, settings etc from anyone like Jaco to Marus Miller to Eddie VanHalen and they are not going to sound the same. Some of us (not me mind you) may even be just as technically skilled but our technique is going to make us sound different. Many players have such a dinsinct style that they could play any guitar/bass and amp combo and you would still know who it was even if it was on a piece of junk bass/guitar on a cheapo four track.
Ya know what I mean? I still remember hearing Micheal Jackson's "Beat It" on the radio the first time and I
just knew it was Eddie VanHalen playing the guitar solo! There were 100's of Eddie V copycat guitarists at the time in various bands but I knew that was the real Eddie V.
Although Mark Egan and Alain Caron have very different styles from Jaco you can hear his influence in their tone and on the slow sustained note solo kind of stuff it sounds very similiar to Jaco's tone with very different equipment...different basses, amps, effects but getting very similiar (and to me) equally beatifull tone. I just think there is more than one way to get similiar sounds and can often be done with different equipment by really working on technique.
I just strongly believe that any yahoo with the $$ can run out and buy the same top dollar rig as his hero but without deveolping technique he/she still won't sound good or like his/her hero.
That same person can work their butt off on technique and they will find a way to sound good on practically anything and phenominal on really good equipment and you take that with you in your pocket every day, every night and everywhere you go no matter what equipment you may or may not own.
I will never forget hearing a bass player in a cover band a drummer friend of mine took me to see. He had
the EXACT same rig as the one I started on...same entry level Yamaha bass (BB-450) I think and an old Peavey
Mark IV head (early 80's with a Peavey 1-15" cab). I was never happy with my tone with that rig but this guy had such amazing tone and punch! That night my perception of what I really needed to sound good changed dramatically. I still love to read the reviews in bassplayer of $2,000 and up basses, cabs and amps and dream of owning some of them some day but I know I don't need them....I need to practice, play and listen.
Sorry I got on a soap box there. Equipment is a factor in tone I just think we focuss on it too much.
