The Morel CAT 378 is the modern updated replacement for the legendary MDT-37. This high efficiency horn loaded tweeter features a field replaceable hand coated 28mm Acuflex textile dome, a large ferrofluid cooled Hexatech aluminium voice coil, a vented ferrite magnet system and a tuned / damped rear chamber. This tweeter is ideal for low powered valve amps and has a detailed, unfatiguing sound with a gently downward sloping response - excellent for taming 'live' rooms with hard surfaces. Recommended frequency use: 2000-20,000 Hz. High power rating of 200w nominal, 1000w peak.
A full datasheet can be downloaded from the bottom of this page.
| Resonant frequency (fs) | 700 Hz | Nominal impedance (Zn) | 8 Ω |
| Effective diaphragm diameter | 28mm | DC resistance (Re) | 5.2 Ω |
| Ferrofluid ? Y/N | Yes | RMS power handling | 200W |
| Recommended crossover | 2khz | Faceplate diameter | 94mm |
| Sensitivity (2.83V/1m) | 93 dB | Cutout hole diameter | 72 mm |
CAT378