Ibanez SRF4 Portamento Fretless Bass – Brown Burst Flat
A Modern Fretless Bass with Upright-Inspired Expression
The Ibanez SRF4 Portamento is designed for players seeking the expressive possibilities of an upright bass within the comfort and versatility of a modern solid-body instrument. Its extended 30-fret Panga Panga fingerboard opens up an impressive melodic range, encouraging adventurous phrasing and nuanced expressiveness. Paired with the AeroSilk piezo system, the SRF4 delivers an airy resonance and touch sensitivity that closely mimics acoustic upright voicing, redefining what a fretless bass can achieve.
30-Fret Neck-Through Construction for Sustain and Fluid Playability
The SRF4’s 5-piece Maple/Walnut neck-through design provides excellent sustain, smooth access to high positions and rock-solid tonal consistency. The bound Panga Panga fingerboard offers a tight low-end response with crisp high-end attack, making glissando and dynamic fretless techniques feel natural and precise. Its Okoume wing body keeps the instrument lightweight, resonant and perfectly balanced for long sessions.
Magnetic + Piezo Pickup System for Unlimited Tonal Range
Equipped with Bartolini MK-1 neck and bridge pickups plus the AeroSilk piezo system, the SRF4 offers everything from clean, modern bass tones to warm, woody, upright-style textures. The integrated Ibanez 2-band EQ with piezo tone control lets you tweak both magnetic and piezo voices separately, creating deep, layered tones suitable for jazz, fusion, ambient, cinematic, experimental and world-music settings.
Key Features
- 5-piece Maple/Walnut neck-through for sustain and tonal stability
- Bound Panga Panga fretless fingerboard with 30-fret range
- Lightweight Okoume wing body for bright, resonant response
- Bartolini MK-1 pickups + AeroSilk piezo for magnetic and upright-style sounds
- Ibanez 2-band EQ with separate piezo tone and volume controls
- Custom AeroSilk bridge optimised for piezo clarity
- Fretless design ideal for expressive, sliding and vocal-like phrasing
Who This Bass Is For
- Fretless players seeking extended range and upright-influenced tone
- Jazz, fusion, ambient and experimental musicians
- Session players requiring wide tonal versatility
- Performers desiring both acoustic-style warmth and modern clarity
- Bassists exploring new soundscapes beyond traditional fretted instruments
