The  Greenback G10 16 ohm speaker was developed to recapture the legendary  sound of Celestion's 1970s 10s - a 10" speaker with a surprisingly meaty  tone.
Celestion G10 Greenback 10" 16 Ohm Guitar Speaker 30W
The 10" that thinks it's a 12". Low in output but with the   weighty low-end balance of a 12", the G10 Greenback features a complex,   creamy mid-range and smooth, vintage top-end. In small combos this   speaker adds real class, and when combined in a 4x10 gives rise to a   raunchy, full-bodied tone, rich in low-end thump.
By performing extensive listening tests with 10" Celestion ceramic   drivers from the late 60s onwards, as well as drawing on the experience   gained from the development of the original G12M Greenback, Celestion   design engineers have created a speaker that remains faithful to the   sonic spirit of the Greenback family. It has the same warmbodied   character and delivers tone like the distinctive 'sports-car growl' that   is the trademark of the original 12" G12M 'Greenback'.
Featuring a new eight hole chassis that's more versatile for   upgrades, the new G10 has been built with its own green can, which   should leave no-one in any doubt of this remarkable speaker's family   history. The G10 Greenback truly is a contemporary speaker with a   vintage pedigree.
"The new  Celestion 10" Greenback is hands down the best 10 I've ever  heard," Phil  Jamison Head of Production for Matchless Amplifiers.
Overall Specifications: • Nominal diameter: 10"          (254   mm) • Power rating: 30 watts • Nominal impedance: 16 ohm •            Sensitivity: 95 dB • Chassis type: Pressed steel • Voice coil    diameter:         1.75" (44.5 mm) • Voice coil material: Round copper •    Magnet   type:      Ceramic • Frequency range: 95-5,500 Hz • Fs: 98 Hz  •   DC   resistance,   Re: 12.05 ohm.
Mounting Information:      •       Diameter: 10" (254 mm) • Overall depth: 4" (102 mm) •      Magnet       structure diameter: 4.9" (124 mm) • Cut-out diameter: 9"      (229 mm) •       Mounting slot dimensions: 0.25" x 0.43" (6.5 x 11 mm   Ø) • Number    of mounting    slots: 8   • Mounting slot PCD: 9.6" (245   mm) •   Weight: 3.5 lbs. (1.6   kg).