Celestion Eight 15
An 8-inch guitar speaker designed for compact amps seeking authentic British tone.
Overview
The Celestion Eight 15 is an 8-inch guitar loudspeaker for players who want Celestion sound in a smaller amp. Celestion markets it as "the fattest sounding 8-inch speaker around," and it's aimed at practice or bedroom amps that need a more authoritative voice. It comes in 4, 8, and 16 ohm versions, so it fits a range of amp setups. Frequency range is 100 Hz to 5,000 Hz, with a resonance frequency of 120 Hz, which suggests a tight low end for its size. Sensitivity is rated at 95 dB, though the measurement conditions aren't specified. That points to moderate efficiency. Power handling is listed as 15 watts RMS by major retailers and official documentation. One listing says 20W, but the 15W figure is the one to trust because it matches the manufacturer's sources.
Design
The Eight 15 uses a ceramic magnet weighing 0.37 kg (13 oz) and a 25 mm (1 in) voice coil. The chassis is pressed steel, which is standard for durability and low cost in this class. Four mounting holes sit on a 195 mm (7.7 in) pitch circle diameter, and each hole measures 5x8 mm. Overall diameter is 8.1 inches, cut-out diameter is 7.2 inches, and depth is 3.3 inches. The available research doesn't detail the cone and surround materials. The design is built around fitting into compact guitar cabs and combo amps.
Reception
Celestion positions the Eight 15 as a way to upgrade practice amps with "authentic British tone," and highlights its "well-balanced mid-range and high frequencies" paired with a surprisingly full low end. Thomann (n.d.) describes it as delivering the "fattest sounding" performance in its size class. User sentiment on The Gear Page (n.d.) is positive, with one musician saying it gives the sound they've always wanted from a smaller speaker, though the full quote is fragmentary. It has also turned up in a YouTube comparison of the Eight 15 (marketed as G8C-15) against a Jensen 8-inch speaker.
Market
The Eight 15 is still in production and sold through major music retailers. The 8-ohm version is currently listed at $37 (Thomann), which makes it an affordable replacement or upgrade. There is no data on long-term reliability, common failure modes, or parts availability beyond standard retail channels.
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