Sire Marcus Miller Er Z7-4 Mint

A fretless Z7-4 that fits into a modern approach to the "J"-style bass

The Z7-4 features a Marcus Miller Jazz Shape silhouette and a design oriented towards stage and studio use: contemporary luthiery, refined finishes, and full active electronics. The combination of swamp ash + burl poplar top aims for a balance between attack, clarity, and presence, while the Marcus Heritage-3 preamp allows quick spectrum adjustment to adapt to the band, mix, and fretless playing.

For which bassist and styles?

With its fretless fingerboard and active electronics, this bass is mainly aimed at intermediate to advanced bassists who want to work on intonation, accuracy, and nuance. It is particularly comfortable in jazz fusion, neo-soul, funk, pop, groove, and more atmospheric textures, while remaining relevant for modern contexts thanks to its onboard EQ.

The sound

Swamp ash is known for a quick response, firm lows, and present highs: a good point for keeping the bass line clear even in a dense mix. The solid burl poplar top adds a distinctive visual identity and integrates into a luthiery designed for precision. The Marcus Super-J Revolution pickups bring an articulate and dynamic character, with great note separation, ideal for highlighting right-hand intentions. The Marcus Heritage-3 preamp (Volume, Treble, Middle/Freq, Bass) allows reinforcing the low end, opening the highs for a snappier slap, or targeting the mids to emphasize the fretless singing and "mwah," all supported by the massive bridge for a feeling of sustain and stability.

Recommended compatible accessories

To maintain the original balance and ensure safe compatibility, opt for a 4-string long scale bass string set (34") with a gauge of 45-105. For fretless, flatwound or half-round strings are also a popular option for a softer feel and rounder tone, while limiting wear from slides.

Technical specifications

Electronics: microphone configuration	SH	Nbrs of frets	22
Left handed	No	Body	Alder
Strings	Steel	Electronics	Active
Nbr of strings	4	Color	Green
Top	Poplar	Finishing	Satin
Fingerboard	Maple	Hardware	Chromed

Type	electric bass	Inlays	Abalone Block
Body shape	Marcus Miller Jazz Shape	Configuration	fretless
Body wood	swamp ash	Bridge	New Marcus HeavymassII Bridge
Finish	Transparent Black Satin	Tuners	Premium Open Gear
Neck wood	maple	Pickups	Marcus Super-J Revolution
Profile	C	Preamp	Marcus Heritage-3
Mounting	bolt-on neck	Controls	Volume, Treble, Middle/Freq, Bass
Scale length	34" / 864 mm	Weight	8.9 kg
Radius	9.5" / 241 mm	String gauge	45-105
Nut	OS, 38 mm / 1.50"