These are Rola era, Ipswich England, bass cone G12-M speakers in perfect working order. Not as sought after as the Pre-Rola Greenbacks, but an awesome speaker nonetheless and despite their "bass cone, 55Hz rating, sound fantastic for guitar.
Production Date: May 11th, 1977
Specifications
- 25 watts
- 55Hz
- 16 Ohm
- 12"
- Frame stamping: T2633 / E K11
From Greg Germino
"These are from May 11th 1977 according to date codes. The Blackback Celestions G12M Bass cones are fairly dark sounding according to Ken Fishers article in VG and reprinted in the 2nd Gerald Weber book. While I've had no experience with the G12M 55HZ I did own a nice set of G12H Blackback Bass cones that I bought at Fat Sound in '95. Completely different speaker but they sounded great.
My experience with old speakers is they all sound a bit different from each other even when comparing the same model.
These will most likely be darker than a new reissue GB. I know my Pre-Rola Bass cone G12M's are darker. The Blackbacks used a Kurt Mueller cone where the Pre-Rola's used a Pulsonic cone.
If these are dark sounding it seems the EQ of the amp would compensate. These would probably not be the best with a Classic 45 but fine with a Club 40 or Lead 55."
Greg G, owner Germino Amplifiers
Saxapahaw, NC
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