| Model |
Challenger Apollo-39 Red UC Deluxe (Electro-Acoustic, Right-Handed Upper Cutaway) |
| Body Shape |
Grand Auditorium with Venetian upper cutaway — balanced tonal response and easy access to high frets |
| Top Wood |
Select spruce, X-braced, book-matched for clear projection and dynamics |
| Back & Sides |
Mahogany laminate — warm mids, focused lows, smooth treble response |
| Finish |
High-gloss Red Deluxe with protective UV-cured clearcoat |
| Neck |
Mahogany neck, satin finish; comfortable C-profile for reduced hand fatigue |
| Fingerboard |
Rosewood-style engineered wood; ~12" radius; rolled edges for playability |
| Scale Length |
25.5" / 648 mm — balanced string tension and articulation |
| Frets / Inlays |
20 medium frets; polished ends; dot inlays and side markers for visibility |
| Nut |
Approx. 43 mm nut width; synthetic bone (NuBone-style) for stable action |
| Truss Rod |
Dual-action truss rod — headstock adjustment (4 mm hex) |
| Bridge & Saddle |
Rosewood-style bridge with compensated synthetic bone saddle for improved intonation |
| String Spacing |
Approx. 55 mm E-to-e — comfortable for fingerstyle & flatpicking |
| Factory Strings |
.012–.053 phosphor bronze (standard); alternate gauges available |
| Electronics |
Under-saddle piezo pickup with active low-noise preamp; 3-band EQ (Bass/Mid/Treble), Volume, Phase switch |
| Onboard Tuner |
Integrated digital tuner with LED display and auto-mute while tuning |
| Outputs / Power |
1/4" TS output jack; 9V battery compartment on lower bout; optional XLR DI on select SKUs |
| Machine Heads |
Die-cast sealed tuners, ~18:1 ratio, chrome finish for stable tuning |
| Action Target (12th Fret)* |
Factory target ~2.2 mm (low E) / ~1.8 mm (high e) — adjustable to player preference |
| Dimensions & Weight |
Overall length ~1030 mm; lower bout ~405 mm; body depth 100–120 mm; weight ~2.0–2.4 kg (varies) |
| Case / Accessories |
Padded gig bag recommended; deluxe hardshell case optional. Includes truss key, spare bridge pins, quick-start guide, warranty card (region dependent) |
| Care & Environment |
Store at 45–55% relative humidity; avoid direct sunlight, radiators and rapid humidity swings; use humidifier in dry climates |
| Notes |
*Factory setups vary by batch. Specifications subject to change without notice. Measurements are approximate. |
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