Morel Integra 524 Hybrid Coaxial Speaker.

2 way time aligned coaxial speaker featuring a 143mm (5") composite paper cone woofer and a 28mm (1.1") Acuflex treated soft dome tweeter. Hybrid mixed magnet system comprising Neodymium / Ferrite elements. Uniflow™ Aluminium diecast chassis for undisturbed airflow.
A culmination of various Morel innovations matched and combined resulting in a high performance single point source drive unit.
Also available: Morel Integra 424 (4") , Morel Integra 624 (6").
Key Features:
- 2.1" Large Hexatech™ Aluminum voice coil (woofer)
- High flux Hybrid™ mixed Neodymium / Ferrite magnet
-
28mm tweeter hand treated with Acuflex
- Time aligned configuration
- Uniflow™ diecast chassis
- High power handling
Basic parameters (woofer):
| Resonant frequency (fs) |
62 Hz |
Nominal impedance (Zn) |
4 Ω |
| Mechanical Q factor (Qms) |
1.65 |
DC resistance (Re) |
3..63 Ω |
| Electrical Q factor (Qes) |
0.36 |
Peak power handling |
500W |
| Total Q factor (Qts) |
0.29 |
Sensitivity (2.83V/1m) |
90.4 dB |
| Equivalent volume (Vas) |
12.93 L |
Chassis diameter |
143.2 mm |
Here's the full datasheet:

Co axial