The KLŌS Bass Apollo Custom Series was built for musicians who need more than just great tone—they need consistency, durability, and flexibility across every gig, session, and travel scenario. We designed this carbon fiber neck bass lineup to deliver tour-ready stability with the familiar feel of Precision and Jazz-style instruments, giving working bassists a platform they can rely on night after night. Whether you’re tracking in the studio, flying between shows, or rehearsing in changing climates, the Apollo Custom Series is engineered to eliminate the variables that typically slow players down.
Every Apollo Custom bass has our carbon fiber neck, which provides a level of stability that traditional wood simply can’t match. Changes in temperature and humidity are some of the biggest challenges for bassists, often leading to warping, inconsistent action, or constant setup adjustments. With our carbon fiber neck platform, we’ve removed that concern entirely. The result is a bass that holds its shape, maintains low action, and feels consistent every time you pick it up. Combined with our PLEK-focused precision setup process, each instrument is dialed in for smooth playability, accurate fretwork, and reliable performance right out of the case.
We also know that no two bassists are the same, which is why the Apollo Custom Series is built around multiple configurations to match different playing styles and preferences. For players who love classic ergonomics, we offer both Precision-style and Jazz-style 4-string options, with nut widths tailored for feel—42mm for a fuller grip and 38mm for a faster, slimmer profile. If you’re looking for something more compact and comfortable, our short-scale 30” option delivers a unique low-end response with easier reach and playability. Beyond that, we expand into extended range instruments with 5-string and 6-string configurations, including headless bass options for players who want improved balance, reduced weight, and a more travel-friendly footprint. Across the lineup, we maintain a consistent Slim C + D neck profile so switching between models feels seamless.
Tone is where the Apollo Custom Series truly becomes a powerful tool for both live and studio musicians. We’ve built in a range of electronics options that allow you to tailor your sound to your exact workflow. For those who prefer simplicity and classic feel, our passive setups deliver articulate, punchy tones that sit perfectly in a mix. If you need more flexibility, our active-passive configurations and fully active systems—including options like Fishman Fluence and EMG X—open up a wide range of sonic possibilities. With multi-voice capabilities, coil splitting, and intuitive control layouts, you can move from vintage warmth to modern clarity without switching instruments. This makes the Apollo Custom Series especially valuable for session players who need fast recall and consistent DI tones across multiple genres.
Beyond performance, we’ve built this series with real-world use in mind. As a detachable neck travel bass, the Apollo Custom Series is designed to move with you. Each instrument includes the tools you need for quick breakdown and setup, along with a gig bag and protective neck sleeve, making it easy to take your bass anywhere without compromising on feel or tone. Our construction philosophy is simple: create an instrument that spends more time in your hands and less time in the shop. That’s why we back the Custom Series with a limited lifetime warranty, giving you confidence that your investment is built to last.
When compared to traditional options from brands like Fender or modern alternatives from Ibanez or Journey Instruments, the Apollo Custom Series stands apart by combining carbon fiber neck stability, customizable electronics, and true travel-ready design in one platform. We’re not just building another bass—we’re building a system that adapts to your needs as a musician. From 4-string Precision-style players to 6-string extended range performers, from passive purists to multi-voice active users, the Apollo Custom Series gives you the freedom to choose your setup while ensuring the consistency you need to perform at your best.
If you’re looking for a carbon fiber neck bass that delivers reliability, versatility, and professional value, the Apollo Custom Series is built for you.
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