Deano i posted this in another thread, here it is again mate:
ok.... the differences...
Firstly, the main difference are the woods.
A Stage 1 is made of Maple with strips of ovangkol (?) for the neck. This gives the bass a bright sound with nice mids; it's also lighter in weight than the dark-wood warwicks.
A Stage 2 on the other hand is Afzelia with ovangkol for the neck. The afzelia is a much denser wood than maple; this is said to give the bass better lows and mids... and after all, the dense dark woods are what gives Warwick basses their 'growl'.
The next and most significant difference is the string spacing. The Stage 1 has a wider string spacing than a Stage 2... thus at the 24th fret the stage 1 neck is significantly wider than a stage 2 neck. Have a look at the photos of both basses and you'll see that the Stage 1 neck tapers wheras the Stage 2 neck looks straighter. I think string spacing is 20mm on the Stage 1 as compared to 18mm on a Stage 2.
OK, another difference is in construction. Both basses have neck-thru construction... HOWEVER, a Stage 2 has 'hidden' NT construction.... thus the body of the Stage 2 looks solid from the front... you only see the neck laminates from the back. With a Stage 1, you can see the wood strips from the front and back.
Stage 1 basses have a P/J pickup configuration (4-string) and 2 humbucking soapbars (5-string and 6-string models). Stage 2 basses have J/J pickups in both 4 and 5-string models. Both basses have active 3-band electronics, yet from what i know the Stage 2 has a slightly different pre-amp that better suits the denser woods.
Finally, Stage 2 basses are only available in 4 or 5 string models. Stage 1s are available in 4 through to 6 strings.
I own 2 Stage 1s (one Fretless, the other is the custom shop all-white bass with blue LEDs).
HOWEVER — i had both of these made in Afzelia.
The reason is i prefer the sound of Afzelia, but enjoy the wider string spacing available on a Stage 1. In addition, my fretless is a six-string... so that was not available as a Stage 2. Both basses feature a Stage 2 pre-amp.
I guess both basses could be called a 'Stage 1-and-a-half!'
I hope all this info helps. I think the best thing to do is play both basses and see which you prefer in sound and spacing. Remember you can do ANYTHING as a custom shop bass so all the options are there!
Cheers,
Lex