JBL LX14 (c. 1981)
The LX14 is a binding network - JBL's term for a crossover network - sold as a separate component around 1981 for ¥16,000 per unit. It was designed to sit between an amplifier and a pair of JBL drivers: the LE10H woofer and LE21H tweeter, crossing over at 2.5kHz. Impedance is rated at 8Ω, with a system allowable continuous program input of 35W.
What little documentation survives stresses the parts quality: non-polar capacitors, carefully processed precision inductors, and a continuously variable level control (likely an attenuator for the tweeter). Packed weight was 0.9kg. Beyond that, the record is thin. There are no dimensions, no frequency response measurements, no production run dates beyond the circa-1981 price listing, and no reviews in the period press that anyone has been able to trace.
Known specs:
- Crossover frequency: 2.5kHz
- Impedance: 8Ω
- System allowable input (continuous program): 35W
- Drivers paired: LE10H (low), LE21H (high)
- Level control: continuously variable
- Weight (packed): 0.9kg
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