Sire Marcus Miller Er U7-4 Rosegold Rose Gold
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Manufacturer Information
Sire Marcus Miller
https://www.sire-usa.com
sireguitars@sire-revolution.com
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IMS Distribution
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A Sire U7-4: Marcus Miller DNA in an Ultra Versatile Bass
The M. MILLER U7-4 follows the Sire philosophy: offering a serious, richly equipped bass that is enjoyable to play while remaining immediately familiar to the bassist. Its Sire Z-Bass format and J+MM pickup duo make it an instrument capable of switching from a clean, articulate sound to more massive attacks, with electronics designed to sculpt the tone without losing the instrument's natural character.
For Whom and Which Styles?
This bass targets intermediate to advanced bassists who want to take the leap into fretless playing and work on intonation, vibrato, and right-hand dynamics. It is particularly comfortable in jazz, fusion, soul, R&B, pop, and atmospheric music, but remains very effective in modern contexts thanks to the preamp and mid control, ideal for finding your place in the mix.
Tone
The swamp ash body delivers a clear attack, firm lows, and open highs, with great dynamics when playing with intensity. The maple neck enhances precision and projection, while the ebony fingerboard adds a fast and clear grain, highly appreciated on a fretless to maintain definition in sustained notes. On the electronics side, the J pickup favors articulation and clarity, and the MM adds punch, density, and a sharp attack; the Marcus Heritage-3 preamp then allows you to go from a round, woody sound to a modern brightness, finely controlling presence via the mids.
Recommended Compatible Accessories
With its 34" / 864 mm scale length, this bass accepts a 4-string long scale 34" string set (gauge depending on your touch). For transport, a 34" long scale electric bass gig bag is a practical daily choice, and a strap improves comfort when playing standing up.
Technical specifications
| Electronics: microphone configuration | PJ | Body | Swamp ash |
| Left handed | No | Bridge / tailpiece | Fixed |
| Strings | Steel | Electronics | Active |
| Nbr of strings | 4 | Color | Green |
| Fingerboard | Ebony | Finishing | Glossy |
| Nbrs of frets | 22 | Hardware | Chromed |
| Wood | swamp ash | Frets | fretless |
| Body Shape | Sire Z-Bass | Bridge | Sire Premium MM Bridge |
| Finish | Mint | Tuners | Premium Open Gear |
| Pickguard | 3-ply white | Knobs | Aluminum Knob sets |
| Profile | C | Hardware Finish | chrome |
| Attachment | 5-bolt neck joint | Pickups | Sire Premium J+MM Pickup set |
| Scale Length | 34" / 864 mm | Preamp | Marcus Heritage-3 with mid control |
| Radius | 12" / 305 mm | Controls | Volume/Tone |
| Nut | bone | Model | M. MILLER U7-4 Rosegold Rosegold |
| Nut Width | 4 mm (manufacturer data) | Weight (Kg) | 8.9 |
| Inlays | White Dot | String Gauge | 45-105 |
Questions frequently asked
Is the Sire Marcus Miller U7-4 Rosegold a fretless bass?
The ebony fingerboard is fretless, without frets, and features White Dot inlays. This setup allows for working on intonation and vibrato. The bolt-on neck has a 5-bolt joint with a C profile and a 12" / 305 mm radius.
What pickups are equipped on this 4-string bass?
The swamp ash body is fitted with a set of Sire Premium J+MM pickups, combining the articulation of the J pickup and the dense attack of the MM pickup.
Is it suitable for jazz and fusion?
Thanks to its ebony fretless fingerboard and the active Marcus Heritage-3 preamp, this bass fits well within jazz, fusion, soul, R&B, and pop genres. The midrange control allows for adjusting presence in a mix.
What strings should be used on this bass?
The 34" / 864 mm scale length accepts a 4-string long scale 34" set. The recommended setup uses steel strings with a gauge of 45-105.
What is the weight and which bridge is fitted on the U7-4?
The instrument is rated at 8.9 kg and features a fixed Sire Premium MM Bridge. The hardware is complemented by Premium Open Gear tuners with chrome plating.



