ATOHM LD180CR04 Speaker Driver Midbass 150W 4 Ohm 93dB Ø18cm

The LD180CR04 from ATOHM is a woofer loudspeaker designed for the realization of 2-channel system of very high quality.

This HP is equipped with a specific alloy membrane combined with a LDSO (Low Diffraction Surrounding) peripheral suspension. The latter is characterized by a particular profile ensuring a progressive fractionation of the suspension at the medium frequencies.

Its moFWI (Force Without Inductance) technology. The geometry of the component parts has been optimized to obtain a large and symmetrical force factor. The core has a copper ring that limits the creation of currents induced in the polar parts. This technology allows the reduction and linearization of the inductance value of the winding. The result is a reduction in distortion by odd harmonics and intermodulation as well as a more linear and extended bandwidth.

This superb HP canbe characterized by this: excellent efficiency, very low distortion rates, and high excursion capacities.

The detailed technical data sheet of the LD180CR04 can be found in the attached document.

HP Specifications:

• Power Rating: 150W RMS
• Peak Power: 300W Max
• Impedance: 4 Ohm
• Sensitivity: 93dB / 2.83V / 1m
• Resonant Frequency: 46Hz
• DC Resistance: 3.6 Ohm
• QTS - QES - QMS: 0.32 / 0.35 / 3.94
• MS: 0.66 mm / N
• MMS: 18.2g
• VAS: 24.3L
• BL: 7.2 N / A
• On: 0.58 mH
• Recommended switching frequency: 2500Hz

Dimensions:

• Emission area: 160cm²
• Coil diameter: 35mm
• Height of reel: 18mm
• Air Gap Height: 6mm
• Weight: 2.9kg
• Density of flux: 11200 gauss
• Linear Excursions: +/- 7.5mm
• Maximum excursions: +/- 11mm