Good catch! While the body shape and natural finish share some aesthetic DNA with the Peavey Grind, the distinctive headstock logo and hardware confirm this is a Tobias Killer B 5-String Bass.
Designed by legendary luthier Michael Tobias, the Killer B series is renowned for its exceptional clarity, articulation, and ergonomic design.
The Neck Profile: This bass features the famous Tobias "Asym" neck profile. The back of the neck is asymmetrically contoured—thicker on the bass side and thinner on the treble side—designed to naturally fit the curve of a player's hand and reduce playing fatigue.
Construction Anomaly: The "B" in Killer B traditionally stands for "Bolt-on," and standard models feature a 5-piece bolt-on neck. However, your photos clearly show a 5-piece neck-through-body construction. This suggests this may either be a custom order, a transitional instrument, or potentially a Tobias Basic or Classic model that shares the same body contours. The neck is typically crafted from hard maple with purpleheart stringers.
Fretboard: It features a 24-fret wenge (or pau ferro) fingerboard with a 34-inch scale length, providing a fast, smooth playing surface.
Ergonomic Body: The body utilizes a curvy, offset double-cutaway design, ensuring it sits perfectly balanced whether played seated or strapped on.
Pickups and Preamp: It is equipped with premium dual Bartolini humbucking pickups. These are paired with an active preamp system featuring a master volume, pickup blend pan, and a 3-band EQ (bass, mid, treble) to precisely sculpt your tone.
Hardware: It utilizes a massive, high-mass bridge (often an ABM or Babicz design) for unstoppable sustain, paired with Gotoh or Grover tuning machines on the signature asymmetrical headstock.
Tobias basses are highly regarded in the professional bass community.
Retail Value: Brand new reissues of the Killer B V typically retail for around $1,599.
Used Value: On the used market, standard Killer B 5-strings generally sell for between $862 and $1,280. However, if this is indeed a neck-through Basic or Classic model rather than a standard bolt-on Killer B, the vintage collector value would be significantly higher.