Description
The Beyma 4FR40ND is a discontinued 4-inch, 8-ohm neodymium full-range loudspeaker for compact enclosures, beam-steering columns, portable arrays, and custom installations. It is sold individually.
The driver handles 40 watts AES and 80 watts program power. Its paper cone, Santoprene surround, pressed-steel basket, and lightweight neodymium motor provide broad 100 Hz–20 kHz coverage from a compact frame. Availability is limited to remaining inventory.
Specifications
| Model | 4FR40ND |
|---|---|
| Product status | Discontinued by Beyma |
| Sold as | Single speaker |
| Nominal diameter | 100 mm / 4 inches |
| Nominal impedance | 8 ohms |
| Minimum impedance | 7.2 ohms |
| AES power handling | 40 watts |
| Program power | 80 watts |
| Sensitivity | 88 dB, 1 W / 1 m |
| Frequency range | 100 Hz–20 kHz |
| Voice-coil diameter | 20.3 mm / 0.8 inch |
| BL factor | 4.7 N/A |
| Xmax | 3 mm |
| Magnet | Neodymium |
Use suitable high-pass protection and confirm mounting dimensions before installation.

