The N7000 is nearly 70 years old. Electrolytic capacitors dry out. Inductors drift. Resistors burn up. When these crossovers fail, they don’t just sound bad—they can destroy your tweeters. A failed capacitor can send low-frequency energy to a delicate 075 tweeter, frying its aluminum voice coil in seconds.
The schematic diagram of the JBL N7000 reveals a complex yet elegant design, comprising multiple stages, including:
Directs signals above 7 kHz to the tweeter (e.g., 2402 or 2405 ). This circuit protects the tweeter from high-current low frequencies.