Here's a list from Wikipedia:
Harris has been seen with different bass guitars during his career, mostly Fender P-Basses. This list may not contain every bass, and most of them are retired, and the first ones in this list are from his earliest days from his career as a musician.
* Fender Precision Bass Copy: White, white pickguard, maple neck.
* Fender '70s Jazz Bass: Sunburst w. tortoise pickguard, rosewood fretboard.
* Fender '70s Precision Bass: Pearl White w/ West Ham crest and blue/red pinstriping (formerly white, then black, then blue sparkle), mirror pickguard (formerly black), maple neck.
* Fender '70s Precision Bass: Blue / silver crackle finish (formerly white, then red sparkle), mirror pickguard (formerly black), maple neck.
* Fender 1959 Precision Bass: Chess finish (formerly fiesta red or 'salmon pink' as described by Steve in a 1992-era Bass Player magazine), mirror pickguard (formerly gold anodized), maple fretboard (formerly rosewood).
* Ibanez Roadster Bass: Black, maple neck (White pickups).
* Ibanez Roadster Bass: Black, maple neck (Black pickups).
* Danelectro Longhorn Bass: White, rosewood fretboard.
* Fender '80s Precision Bass: Red, mirror pickguard (formerly black), maple neck.
* Fender '80s Precision Bass: Red, black pickguard, maple neck.
* Fender '80s Precision Bass: Red, black pickguard, rosewood fretboard.
* Lado Steve Harris Signature Unicorn Bass: Blue w. Unicorn graphic, rosewood fretboard. The bass has no tone control and Harris taps his head or body to cue the technician for treble or bass adjustments.
* Lado Super Falcon Bass: Blue w. Falcon graphic, rosewood fretboard. (He's been using two such basses, one being a proto-type and was delivered back to Lado.)
* Unknown brand: Natural, rosewood fretboard.
* Unknown brand, possibly a "small luthier" bass: Golden, rosewood fretboard.
* Fender '80s Precision Bass: Black, white pickguard, maple neck.
* Ovation Acoustic Bass: Black, rosewood fretboard. Used to play the bass solo during the introduction of "Blood on the World's Hands".
* Fender Steve Harris Signature Precision Bass: Blue, wine-red pickguard, maple neck.
* Guild Acoustic Bass: Black, rosewood fretboard.
* Fender Special Precision Bass: Sunburst, white pickguard, rosewood fretboard.
* Fender Special Precision Bass: Black, golden pickguard, maple neck.
* Washburn Force 40: Black with red lining. Shortly after Bruce returned to the band, he appeared with this bass in some photos. According to an interview by Bass Magazine (in Japan), he uses this bass only for exercise.
Steve uses his own signature RotoSound SH77 flatwound bass strings. Broken-in flatwound strings are not typically associated with Steve's bright sound; however, to retain brightness, Steve changes his strings on a daily basis while touring and recording.
Amplification:
* Pre-Amp: Custom-made 'Electron'. This is a rackmountable virtual clone of a vintage Hi-Watt Solid State 200 amp (rare) and has been the center of Steve's bass rig since the early 1980s.
* Compressor: Vintage DBX 160
* Power Amp: C-Audio SR707 rackmountable power amp x 2
* Switching: Custom-made rackmount unit built by Pete Cornish. Provides loops and mute for tuning, etc.
* Cabinets: Quantity 8 Marshall 4x12 JCM 800 bass series straight cabinets loaded with Electro-Voice EVM12L drivers (32 speakers total).
* Spare: Trace-Elliot GP12SMX serves as spare pre-amp.
Now thats a lot of toys!!
