An L-pad or variable resistor. One of the standout features of the N7000 is the HF (High Frequency) level control. This allows the user to attenuate the tweeter output to match the room acoustics or personal preference without shifting the crossover frequency.
Unlike "all-purpose" crossovers, the JBL N7000 was to complement the unique electrical and acoustical characteristics of JBL transducers. Its name, "N7000," denotes its key specification: a crossover frequency of 7,000 Hz .
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Thread: N7000 / N8000 crossovers - LANSING HERITAGE jbl n7000 schematic
The N7000 is designed for high-frequency terminals of the main dividing network, bridging the signal from the amplifier to the 075 tweeter.
Thread: Rebuilding a JBL N7000. Possible? - LANSING HERITAGE An L-pad or variable resistor
Typically uses 1.5 µF capacitors and specialized inductors. 💡 Restoration & Rebuilding Blogs
Two capacitors in series/parallel arrangement to create the 12 dB roll-off. Unlike "all-purpose" crossovers, the JBL N7000 was to
JBL no longer publishes service manuals for this product. However, high-resolution scans exist in vintage audio archives. Here are legitimate sources:
Over decades, the original capacitors inside the N7000 can dry out, leak, or drift significantly in value. This shifts the crossover point away from 7 kHz, risking driver damage or ruining the soundstage.
Restorers often use the original schematic to create a new, modern circuit board, replacing the 40-50 year-old components with modern equivalents to ensure accurate crossover performance. Similarities with the N8000
For an 8-ohm load at 7 kHz, the capacitance values required are small, typically in the range of 1.5 µF to 2.2 µF . Troubleshooting, Repair, and Recapping