Celestion G8C-15 “Eight-15”
The Celestion G8C-15 — commonly sold under the name “Eight-15” — is an 8-inch, 15-watt, 8-ohm guitar speaker driver. Documentation from Celestion itself is thin; most of what’s known comes from reseller listings and the various small amplifiers that shipped with the driver fitted. What the record shows is a compact British-voiced speaker aimed at practice amps and bedroom rigs rather than the stage.
It appears in a fair number of budget and mid-range tube combos: the Artist TweedToneV 5-watt amp, the Bullet Blackface#1 20-watt head/cab, the Marshall DSL1CR 1-watt combo, and the Vox Pathfinder 15R, among others. The consistent use across those products tells you something about its intended role — a drop-in upgrade or stock driver for small combos where an 8-inch chassis is the only option. One retailer described it as “ideal for upgrading your bedroom blaster with authentic British tone,” which squares with the company’s lineage of guitar speakers dating back to the 1960s Marshall partnership, even if this particular model’s own history isn’t well documented.
On sound, the few opinions out there are mixed but generally positive. The same retailer praised its “well-balanced mids and highs” and “surprisingly meaty bottom end,” calling it “just about the biggest sounding 8 inch loudspeaker we’ve ever heard!” A French forum poster was more measured, saying it’s nice but not amazing for a cheap small speaker. No frequency response, sensitivity, or magnet-type data has surfaced in any of the sources I can find — Celestion’s own spec sheet for this model doesn’t appear to be publicly available.
One listing on craigslist offered a G8C-15 “in mint condition, comes in factory box,” which suggests the driver was also sold as a standalone replacement part. But beyond that single listing, corroboration is limited to third-party pages describing amplifiers that use the speaker. Production years, original price, and official specifications beyond the basics remain undocumented.
Known specifications
- Size: 8 inches
- Power handling: 15 watts
- Impedance: 8 ohms
One note on the spec listings: a single reseller page lists the G8C-15 as “20-Watt” and “16 ohm,” which conflicts with the 15-watt/8-ohm figures given by every other source, including the multiple Artist Guitars listings and the craigslist post. Given the weight of the evidence — and that the conflicting listing appears to be a generic copy-paste error — the 15-watt/8-ohm figures are the ones worth trusting. The “Eight-15” nickname itself, of course, points to the 8-inch size and 15-watt rating.
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