It is Roland ready but it's called the RG1520G (BP) and it's got the same type of Edge-Pro as the Double-Edge which are fitted with piezo saddles.
You can't use it like the normal Double-Edge ( as a piezo pickup). The piezo saddles are used instead of a normal Roland GK pickup to trigger the synth.
http://www.ibanez.com/guitars/guitar.asp?model=RG1520G
You can't use it like the normal Double-Edge ( as a piezo pickup). The piezo saddles are used instead of a normal Roland GK pickup to trigger the synth.
http://www.ibanez.com/guitars/guitar.asp?model=RG1520G