Bridgman was pointing out that Axiom's HP driver can't be used in a 2-way speaker like the M3. The HP driver is incapable of handling the mid-range like the standard 6.5" driver can. The reason it is incapable is, as I've described, due to the larger coil diameter and amount of wire. Both increase the inductance. The higher the inductance, the greater the resistance to higher frequencies like mids.
That larger coil diameter and more wire, along with a larger permanent magnet, beefier surround and spider and cast frame, allow the HP driver to reach lower, with less distortion and higher sound pressure.
The HP driver is therefore perfectly suited to 3-way speakers like the M5, M60, M80, M100, LFRs, 160, 180 and QS10. All those have at least one dedicated mid-woofer driver to handle the mid-range. Incidentally, those mid-woofers extend down to the upper mid-bass.
Last edited by Mojo; 09/07/20 04:01 AM.
