The Morel SCM 634 Midrange drive unit combines many of the Morel proprietary technologies and innovations resulting in an exceptional drive unit: The Uniflow™ Aluminium diecast chassis gives maximum undisturbed airflow and minimal rear reflection; the Coppersleeve / Faraday pole piece negates rising voice coil impedance therefore maintaining linearity; the motor system is superbly engineered featuring a Hybrid™ Neodymium / Ferrite mixed magnet assembly and a large 3" voice coil wound with Hexatech™ Aluminum wire.
The SCM 634 features a sandwich cone composed of Carbon Fibre outer layers bonded to a Rohacell® structural foam core - a cutting edge technology more commonly found in the aerospace industry. The extremely rigid and light cone offers a highly dynamic sound with great pace and control.
The frequency response is tailored specifically for midrange reproduction and is very flat with superb linearity between 1-5 kHz; the useable response extends to 7 kHz. Power rating is 150w nominal and can withstand short term peaks of 1000 watts. A full datasheet can be downloaded from the bottom of this page.
Superb drive unit - highly recommended.
Carbon Fibre / Rohacell composite sandwich cone
Hybrid™ Neodymium / Ferrite mixed magnet
Uniflow™ Aluminum diecast chassis
3" Large Hexatech™ Aluminum voice coil
Copper sleeved centre pole piece
High power handling
Resonant frequency (fs)
Nominal impedance (Zn)
Mechanical Q factor (Qms)
DC resistance (Re)
Electrical Q factor (Qes)
RMS power handling
Total Q factor (Qts)
Equivalent volume (Vas)
Here's the full datasheet:
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