JBL K130
Little is documented about the JBL K130 beyond its basic spec sheet and a few collector forum posts. What the record shows: this is a 12" guitar loudspeaker with an 8-ohm nominal impedance, 104 dB sensitivity, and a frequency range of 60 Hz to 12 kHz. It uses a 3" edgewound aluminum ribbon voice coil, an alnico magnet, and a ribbed cone — a hefty combination, with the magnet weighing roughly 30 oz and the whole driver coming in at 9.3 lb (4.2 kg).
The K130 appears to have been used in Fender amplifiers, per a forum user who owned one. A 1979 Carvin advertisement in Modern Recording (May 1979, p.61) mentions JBL components housed in their speaker systems. The same user noted that re-coning is a consideration for a vintage driver like this, though no specific vendor or part information is documented. No production years, original price, or market context have been found.
Known specifications:
- Nominal diameter: 12"
- Nominal impedance: 8 ohms
- Power rating: 150W (JBL spec sheet; a forum source lists 100W)
- Sensitivity: 104 dB
- Frequency range: 60 Hz – 12 kHz
- Voice coil: 3" edgewound aluminum ribbon
- Magnet: Alnico, ~30 oz
- Net weight: 9.3 lb (4.2 kg)
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