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The Atohm C150 DCR mid-bass driver is designed to deliver top performance in a compact 15cm format. This driver is ideal for use in 2, 2.5 or 3-way speakers, whether bass-reflex or sealed.
Summary of the key benefits of the ATOHM C150 DCR:

Technical characteristics
| Specifications | |
|---|---|
| Speaker type | Mid-bass |
| Total diameter | Ø15cm |
| Admissible power (RMS) | 80W |
| Admissible power (MAX) | 300W |
| Impedance | 4Ω |
| Sensitivity | 91dB 2.83V/1m |
| Voice coil diameter | Ø25mm |
| Coil height | 15.9mm |
| Air gap height | 4mm |
| Recommended cutoff frequency | ≤4000Hz |
| Paramètres Thiele & Small | |
|---|---|
| Resonance frequency (fS) | 48Hz |
| CC resistance (RE) | 3.2Ω |
| Power quality factor (QES) | 0.49 |
| Mechanical quality factor (QMS) | 2.95 |
| Overall quality factor (QTS) | 0.42 |
| Air volume equivalent to the suspension (VAS) | 11.3L |
| Coil inductance (LE) | 0.11mH |
| Force factor (B·l) | 5.18 N/A |
| Moving mass (MMD) | 13.2g |
| Membrane area (SD) | 97.7cm² |
| Maximum linear travel (Xmax) | 11mm |
| Materials | |
|---|---|
| Membrane material | Paper |
| Suspension material | Rubber |
| Coil material | Copper |
| Frame material | Aluminium |
| General | |
|---|---|
| Weight | 1.04kg |
| Packaging | 1x ATOHM C150 DCR 04 |
| Speaker Power (W RMS) | 80.0 |
| Speaker Type | Midbass |
| Impedance (Ω) | 4 |
| Loudspeaker diameter (mm) | 150.0 |
| Diaphragm type | Paper |
| Efficiency / Sensitivity (dB) | 91.0 |
| Max Linear Excursion (Xmax) (mm) | 11.0 |
| Lowest frequency (Hz) | 200 |
| Highest frequency (Hz) | 20000 |