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The Dayton Audio Odeum 8N is a professional 20.32cm (8") mid-woofer designed for PA systems, stage monitors and custom speakers. Its neodymium motor, combined with a 5.08cm (2") voice coil mounted on a fiberglass former and a copper demodulation ring, delivers a power handling of 200W RMS and 400W peak while reducing distortion.
The paper cone with an M-roll fabric surround produces a neutral reproduction, while the peripheral ventilation improves heat dissipation during extended use. With a frequency response from 75Hz to 5.8kHz, an impedance of 8Ω, a sensitivity of 95.5 dB at 2.83V / 1m and a maximum linear excursion of 3.9mm, it easily pairs with a professional compression driver or tweeter, allowing you to replace an original speaker or to build a complete PA enclosure.

Technical specifications
| Specifications | |
|---|---|
| Product type | Woofer |
| Impedance | 8Ω |
| Sensitivity | 95.5dB 2.83V/1m |
| Frequency response | 75Hz-5800Hz |
| Voice coil diameter | 5.08cm (2") |
| Nominal diameter | 20.32cm (8") |
| Power | RMS: 200W MAX: 400W |
| Thiele-Small parameters | |
|---|---|
| Resonance frequency (Fs) | 94Hz |
| Cone surface area (Sd) | 200.96cm² |
| Voice coil inductance (LE) | 0.17mH |
| DC resistance (Re) | 6Ω |
| Mechanical quality coefficient (Qms) | 4.43 |
| Electromagnetic quality coefficient (Qes) | 0.32 |
| Total quality coefficient (Qts) | 0.32 |
| Force factor (BL) | 14.41T·m |
| Total moving mass + air load on the diaphragm (Mms) | 20.89g |
| Mechanical compliance of suspension (Cms) | 0.137mm/N |
| Compliance equivalent volume (Vas) | 0.31ft³ |
| Max linear excursion (Xmax) | 3.91mm |
| Mounting informations | |
|---|---|
| Cutout diameter | 18.18cm (7.16") |
| Depth | 8.63cm (3.4") |
| Number of mounting holes | 8 |
| Total external diameter | 20.98cm (8.26") |
| Materials | |
|---|---|
| Diaphragm | Treated paper |
| Magnet | Neodymium |
| Voice coil former | Fiberglass |
| Surround | Paper |
| General | |
|---|---|
| Weight | 2.47kg |
| Package | Sold individually |
| Speaker Power (W RMS) | 200.0 |
| Speaker Type | Woofer |
| Impedance (Ω) | 8 |
| Loudspeaker diameter (mm) | 20.32 |
| Diaphragm type | Paper |
| Efficiency / Sensitivity (dB) | 95.5 |
| Max Linear Excursion (Xmax) (mm) | 3.91 |
| Lowest frequency (Hz) | 75 |
| Highest frequency (Hz) | 5800 |