| Model |
Challenger Apollo-39 Sunburst Special (Electro-Acoustic) |
| Body Shape |
Grand Auditorium with Venetian cutaway — balanced projection and easy upper-fret access |
| Top Wood |
Select spruce, X-braced, book-matched for clear attack and dynamic range |
| Back & Sides |
Mahogany laminate — warm mids and focused low-end, complements spruce top |
| Finish / Color |
Sunburst Special high-gloss gradient (amber center to deep brown edges) with UV-cured clearcoat |
| Rosette & Binding |
Multi-ring rosette, cream ABS binding with black/white multi-ply purfling |
| Pickguard |
Tortoise-style teardrop pickguard — protective film applied |
| Neck |
Mahogany neck, satin finish; comfortable C-profile for all playing styles |
| Fingerboard |
Rosewood-style engineered wood; approx. 12" radius; smooth rolled edges |
| Scale Length |
25.5" / 648 mm — balanced string tension and clarity |
| Frets / Inlays |
20 medium frets; polished ends; pearloid dot inlays and side markers for stage visibility |
| Nut |
Approx. 43 mm nut width; synthetic bone (NuBone-style) for stable action and tone |
| Truss Rod |
Dual-action truss rod — headstock-adjustable (4 mm hex) for neck relief adjustments |
| Bridge & Saddle |
Rosewood-style bridge with compensated synthetic bone saddle for improved intonation |
| String Spacing |
Approx. 55 mm (E-to-e) at the bridge — comfortable for fingerstyle and strumming |
| Factory Strings |
.012–.053 phosphor bronze (standard); alternate gauges available on request |
| Electronics |
Under-saddle piezo pickup with active low-noise preamp; 3-band EQ (Bass/Mid/Treble), Master Volume, Phase switch — natural amplified tone |
| Onboard Tuner |
Integrated chromatic digital tuner with LED display; auto-mute while tuning |
| Outputs & Power |
1/4" TS output jack; 9V battery compartment on lower bout; optional XLR DI available on select SKUs |
| Machine Heads |
Die-cast sealed tuners, high-ratio gearing (~18:1), chrome finish — stable tuning |
| Action Target (12th Fret)* |
Factory setup ~2.2 mm (low E) / ~1.8 mm (high e) — adjustable to player preference |
| Dimensions & Weight |
Overall length ~1030 mm; lower bout ~405 mm; upper bout ~295 mm; body depth 100–120 mm; weight ~2.0–2.4 kg |
| Case / Bag |
Padded gig bag recommended; deluxe hardshell case optional (sold separately) |
| Included Accessories |
Truss-rod hex key, spare bridge pins, quick-start guide, warranty card (region dependent) |
| Care & Environment |
Maintain 45–55% relative humidity; avoid direct sunlight, radiators, and rapid humidity swings; use humidor/case humidifier in dry climates |
| Notes |
*Factory setups vary by batch. Specifications subject to change without notice as part of continuous improvement. Measurements are approximate. |
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