JBL 066 Tweeter
1975
The 066 was JBL's first dome tweeter. It went into the L166 Horizon and marked JBL's move from cone to dome high-frequency drivers. Response was smoother and dispersion was wider than on the earlier designs.
Specifications
| Type | Dome tweeter |
|---|---|
| Nominal Diameter | 1" (25mm) |
| Magnet Type | Alnico V |
| Diaphragm Material | Aluminum vapor-deposited |
| Impedance | 8 Ω |
| Frequency Response | 6 kHz - 30 kHz |
| Directivity | 150° at 20 kHz, 90° at 30 kHz |
| Crossover | 6 kHz (in L166) |
Key Features
- First JBL Dome: Revolutionary design for the company
- Aluminum Deposited Diaphragm: Vapor-deposited aluminum on resin base for optimal mass/stiffness
- Wide Dispersion: Excellent off-axis response to 30 kHz
- Extended Response: Reproduction beyond the audible range
Applications
- L166 Horizon (1975-1980)
Historical Context
JBL introduced the 066 in 1975. The company had built its reputation on cone tweeters and compression drivers. A small cone radiator couldn't match the smoothness and dispersion a dome could deliver.
The diaphragm is a resin base with a thin layer of aluminum applied by vapor deposition. That gave JBL low mass and high stiffness together. The process was refined in later dome tweeters like the 044 and 033.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Documentation
- Lansing Heritage - Comprehensive JBL specifications, photos, and historical documents
- HiFi Engine - JBL manuals, service documents, and brochures
- Audio Karma JBL Forum - Community discussions and restoration guides