Ibanez SRH505F SR Aerium 5-String Fretless Semi-Hollow Bass – Natural Brown Burst Flat
A Unique Semi-Hollow Fretless Bass with Upright-Inspired Warmth
The Ibanez SRH505F Aerium brings together the responsiveness of an acoustic instrument with the sleek feel of the modern SR series. Its semi-hollow design, maximised internal chamber and lightweight construction offer a beautifully open, resonant character rarely found in electric basses. Combined with its smooth fretless layout and expressive tonal range, this model is ideal for players who crave nuance, organic warmth and inspiring playability.
Smooth Fretless Feel Paired with Premium Tonewoods
A 5-piece Jatoba/Walnut neck ensures clarity, stability and fast attack, while the bound Panga Panga fingerboard delivers tight lows, articulate mids and a defined high-end response – perfect for gliding fretless lines and emotive slides. The Spruce top adds air and sensitivity, while the Okoume back and sides bring warmth and mid-low richness. The specially contoured forearm carve enhances playing comfort and adds visual elegance to the body’s flowing curves.
AeroSilk Piezo System for Upright-Style Expression
The SRH505F’s AeroSilk piezo pickup, integrated into a custom AeroSilk bridge with unique synthetic saddles, delivers a naturally airy, woody tone reminiscent of an upright bass. The onboard active piezo tone control allows you to sculpt your acoustic voice – from mellow, thumpy lows to bright, detailed articulation. Whether you’re playing jazz, folk, fusion, ambient or acoustic-leaning music, the SRH505F offers an inspiring palette of expressive sounds.
Key Features
- Semi-hollow body construction for rich acoustic resonance
- 5-piece Jatoba/Walnut neck offering clarity, strength and fast response
- Bound Panga Panga fretless fingerboard for smooth, vocal-like articulation
- Spruce top with Okoume back and sides for balanced warmth and openness
- AeroSilk piezo pickup delivering upright-inspired tonal character
- Active piezo tone control for detailed acoustic shaping
- Custom AeroSilk bridge optimised for expressive piezo response
- Natural Brown Burst Flat finish with elegant contouring
Who This Bass Is For
- Players seeking a warm, organic fretless tone with acoustic qualities
- Jazz, ambient, world, folk, fusion and singer-songwriter bassists
- Upright players wanting a lightweight, compact alternative
- Bassists who love expressive slides, vibrato and dynamic nuance
- Anyone searching for a unique instrument that inspires new musical ideas


















