My 1.5 cents. First of all, gear snobs break out your flame throwers lol.
Stringed instruments in general that use what we refer to as "pickups" to produce an electronically amplify-able signal are with VERY few exceptions quite low tech and the majority of the "tone" that they produce is just the vibrations of a metal "string" being transmitted to an amplification device via said magnetic pickups. The pickup is a very primitive electronic device consisting of really just a magnet(s), wire and a spool to wind it on. People have been trying for as long as pickups have existed, to come up with the ultimate combination of these ingredients but you can only make a wheel so round. The vehicle used to mount these low tech devices (in this case, a bass) is similarly low tech: A platform of wood or other similarly hard, rigid material that can support the tension of the strings and mount the hardware is pretty much all that is needed. To make a long story short, the main contributors to "tone" strings, the electronics of your amp and pre-amp(s).
Look guys, exotic or not so exotic woods, bridges, nuts, tuners etc. will color your tone to a small degree but a $12,000.00 Fodera will sound like a dying dog's farts through crappy electronics and/or speakers and a $50.00 pawnshop 1st Act with a warped neck through a (insert favorite brand here) amp with high quality speakers will sound exponentially better.
My point is, the better whatever bass you have will sound is
mainly contingent on strings and the electronics the string vibrations are being processed through.
That being said, a well engineered on board active electronics/pre-amp/pickup set up (used correctly) even in an inexpensive bass will give you the ability to really tweak the signal that your amp receives, thus allowing you to achieve the tone you desire.
In summary, no matter how many zeros you add to the price of a bass, it can only play so good and that is also very subjective to taste and preference. Also many of the worlds most coveted basses use electronics and pickups (Bartolini, EMG, Aguilar, etc.) that can be had by anyone for a couple hundred bucks tops. Bottom line: Yes, you CAN get a world class tone from that Squire bass!
