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Italian guitars and bass manufacturer Alusonic Aluminum Instruments is excited to present a new bass model, made in collaboration with Italian worldwide known bassist Alberto Rigoni: the PentaFleX 5 string bass Special Edition. 

Andrea Pollice, Alusonic owner says: “The Alusonic PentaFleX Special Edition represents the state of the art about technology and versatility. We have selected a wonderful piece of White Tulip as body because it’s an extremely lightweight wood with great tone, the body is chambered and we put on an Aluminum alloy top that provides an incredible attack and sustain to the sound. 

The neck is a wonderful Flamed Balkan maple piece with graphite reinforcing rods inside for strength and stability, the hardware is made ourself by aluminium alloy.


Our innovative “PentaFleX” pickup provides five iconic “Precision” sounds such as P-Reverse, P51, Classic Precision as well as single coil and hum-bucker. Moreover, the sound is massive, crispy and rich in harmonics.

The Alusonic PentaFleX was born to offer to the bass player a handmade top instrument and a new sound experience...”

Alberto Rigoni says: “Considering that it features just one pickup, that' definitely the most versatile bass I've ever tried. Moreover, the tone is punchy and really defined. Moreover, due to the materials used, it is super lightweight, just 3.5kg and it's a 5 string! This bass is truly innovative!”


Construction: Bolt - on 

Body: Chambered Selected White Toulipier 

Body Finish: Epoxy Matte Black 

Top: Aircraft Grade Aluminium Alloy 

Top Finish: Epoxy Matte Black 

Neck: Quartersawn Flamed Balkan Maple with Graphite Reinforcing Rods 

Neck Thickness: 21mm at 1st fret, 24mm at 12th fret 

Neck Shape: Custom “C/V” 

Neck Finish: Amber High Gloss 

Fretboard: Quartersawn Flamed Balkan Maple 

Fretboard Finish: Amber High Gloss 

Scale Length: 34” (864mm) 

Radius: 16”

Number of Frets: 24 

Frets Size: Medium Jumbo 

String Nut: Graphite 

Nut Width: 44,5 mm Graphite 

Position Marks: Black Side Dots 

Truss Rod: 2-way 

Set in Normal Position 

Neck Plate: 5-Bolt 

Bridge: Alusonic Aluminium Quick Release Matte Black 

String Spacing: 18 mm 

Tuners: Hipshot Ultralites Black 

Pickups: Alusonic PentaFleX 

Controls: Volume, Tone 

Hardware: Aluminium Matte Black 

Pickguard+Control Plate: Dibond 

Knobs: Black 

String: Alusonic Steel 45/135 

Weight: 3,5 kg 

Accessories: softcase, security straplock, wrench keys, lifetime warranty 

For more visit: Alusonic