For a nylon string classical, the sound must come from the wood and the construction--there is nothing else to generate the sound. There is a balance between t

For a nylon string classical, the sound must come from the wood and the construction--there is nothing else to generate the sound. There is a balance between tone, volume, and tension that different guitar makers choose (for example, flamenco guitar builders generally choose to make the attack and decay quick relative to a "standard" classical guitar--you can see this in the waveforms on an oscilloscope if you so choose) . And, sure, a master player can make any guitar sound good, but it's a lot easier for an amateur to make a nice guitar sound good. Electrics are a totally different story. It's pretty much all about pickups, strings, and the distance between the two. Wood is almost completely irrelevant.