Bacchus JT WL4-QM RSM/M BLKS

Japan Tune-up: A Bass Designed for Efficiency and Style, Without Excess

The Bacchus JT WL4-QM RSM/M belongs to the Japan Tune-up series, an approach focusing on essentials: reliable craftsmanship, coherent material choices, and familiar ergonomics to cover a wide range of situations. Manufactured in Indonesia, it stands out in its category with a winning combination: an instantly recognizable "JB" spirit and a more upscale presentation thanks to the quilted maple top and open-pore satin finish.

Its TYPE S format (silhouette inspired by the classics) aims for versatility: a bass that naturally fits into a mix, easy to set up, and expressive enough to switch from fingerstyle to pick attack without struggling with the instrument.

Who Is the Bacchus WL4-QM For? A 4-String to Play "Anywhere"

This 4-string bass is well suited for demanding beginners as well as intermediate players looking for a reliable instrument for rehearsing, recording, and playing in a band. The long scale length of 34" / 864 mm provides standard feel and familiar string tension, ideal for working on intonation and articulation.

Its natural playground includes pop, rock, funk, indie, modern jazz, and anything requiring a clear and responsive bass. The JB-style configuration allows switching from a warm, laid-back tone to something more punchy and defined, perfect for standing out in the mix without overloading the low end.

Sound: The JB Character Boosted by Responsive Craftsmanship

Electrically, the WL4-QM features an Original JB Set: two "Jazz Bass"-style single-coil pickups known for their definition and dynamic nuance. By adjusting the volume balance, you can go from a fuller low end (neck pickup more open) to a sharper, more aggressive attack (bridge pickup), with a combined middle position often appreciated for its balance.

The 2Vol, 1Tone controls are straightforward: you immediately shape your presence and brightness without wasting time on complex menus or EQ settings. The pull-up "Turbo Switch" integrated into the tone knob provides a more punchy and assertive response depending on the setting, handy for standing out during a chorus, a pick passage, or simply to thicken a line without changing basses.

On the craftsmanship side, the combination of a Roasted Maple neck and Roasted Maple fingerboard promotes a stable playing feel and a clear attack, with good note-to-note clarity. The Natyoh body offers a balanced foundation, while the quilted maple top adds a distinctive visual signature and contributes to a quick response feel. Finally, the JB Bridge with brass saddles ensures precise attack and consistent sustain, particularly appreciated for palm-muted passages or lines played near the bridge.

Recommended Compatible Accessories

To maintain the exact same feel and tension, you can use a set of D'Addario XL-165 strings (identical to the original setup). A good quality 6.35 mm jack cable and a strap are also essentials for stage and rehearsals. For routine maintenance, a tuner (clip-on or pedal) and a soft cloth will help keep the satin finish clean and uniform.

Technical specifications

Left handed	No	Nbr of strings	4
Strings	Steel

Category	Bass	Radius	12" / 305 mm (305R)
Shape	TYPE S	Number of Frets	21
Orientation	Right-handed	Fret Material	Nickel Silver
Body Wood	Natyoh	Nut Material	PPS
Top	Quilted Maple	Nut Width	38.0 mm / 1.50"
Top Color	BLKS	Bridge	JB Bridge with brass saddles
Finish / Color	Black Satin	Tuners	OpenGear
Finish	Open-pore	Number of Strings	4
Country of Origin	Indonesia	Pickups	Original JB Set
Series / Range	Japan Tune-up	Functions / Controls	2Vol, 1Tone (Pull-up \= Turbo Switch)
Neck	Roasted Maple	Included Accessories	Gig bag, adjustment wrench
Fingerboard	Roasted Maple	Contents / Accessories	Gig bag, adjustment wrench
Scale Length	34" / 864 mm