Beyma 4FR40ND

Beyma 4FR40ND 4-Inch Neodymium Full-Range Speaker

If a 4-inch full-range driver fits the location but still leaves the system a little thin through the lower vocals and upper midbass, the 4FR40ND is the next step without jumping all the way to a conventional 5.25- or 6.5-inch speaker.

The Beyma 4FR40ND is a 4-inch, 8-ohm neodymium full-range driver rated at 40 watts AES / 80 watts program, with 88 dB sensitivity, a published 100 Hz–20 kHz range, 3 mm Xmax and only 58 mm / 2.3 inches of mounting depth.

The reason to choose it is not because four inches automatically sounds better than three. The reason is that the extra cone area and lower published resonance give us more body from a compact location while keeping the speaker small enough for dash, pod, pillar and tight custom-fabrication work.