From the Catalogue:
Roadster Series Basses are no less an improvement over similar designs than their six-stringed brothers. A new pickup design, new bridge and tailpiece, advanced electronics and an amazing new neck construction technique put the Roadster basses in a class by themselves. Here’s a bass you just can’t afford not trying.
RS900
The RS-900 is everything you could want in a long scale bass. The tuned response neck is a solid pleasure to play and the B-2 Tone Circuit gives you a versatility other basses can only envy.
ACCU-CAST B BRIDGE TAILPIECE
The heavy duty, precision die cast bridge tailpiece combination is a new standard in response and sustain. The slotted design tailpiece allows for fast and easy string changes and the extra long intonation adjustment accommodates any string gauge.
QUADRA-LOCK FOUR-BOLT NECK MOUNT
Roadster basses also feature the Ibanez exclusive Quadra-lock 4-bolt neck mounting system. Four machine bolts mate with threaded inserts embedded in the neck for a neck body joint that is tighter, more rigid and more secure than any previous system.
TR TUNED RESPONSE NECK
The neck of each Roadster bass reveals an amazing bit of guitarmaking technology. Most basses have dead notes and resonant notes, making the sound unbalanced and downright frustrating at times. Each Roadster bass neck is individually tuned to eliminate this phenomenon. Each neck is analyzed the frequency response is leveled by embedding tuned steel rods in the neck under the fingerboard. The result is incredible. Every note on the neck rings out true and clear with no false tones or dead spots.
SUPER 4 BASS PICKUP
All Roadster basses get their distinctive sound from the Ibanez Super 4 bass pickup. This wide response single coil pickup has plenty of punch and depth, with an amazingly clear and clean top end.
B-2 ACTIVE TONE CIRCUIT
The RS-900 bass features a specially designed active filter network to increase its versatility. The B-2 Tone Circuit is a new low-noise design that lets the player equalize the treble and the bass response of his instrument. Virtually any tone, from rumbling to cutting, can be easily dialed in.