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Speaker Driver Full Range Midbass Neodymium 40W 8 Ohm 95dB 43Hz-10kHz Ø20.3cm

The Dayton Audio PM220-8 is a full range / midbass speaker based on the same design as the excellent Point Source range, but designed for exotic high-performance applications requiring a wide frequency response in the mid to low-midrange range. The PM220-8 provides optimum performance and high efficiency for many types of systems, such as vented loudspeakers, transmission lines or horn designs.
The PM range benefits from ultra-linear Klippel-optimized Neodymium motors with low distortion and low-loss Kevlar-reinforced paper diaphragms for high efficiency and extremely detailed reproduction. The wide frequency response range of these drivers makes them excellent complements for ribbon or planar-magnetic tweeters..

| Specifications | |
|---|---|
| Speaker driver type | Full range Midbass |
| Nominal diameter | Ø203.2mm (8") |
| Power handling | RMS : 40W Max : 80W |
| Impedance | 8Ω |
| Frequency response | 43Hz - 10000Hz |
| Sensitivity | 95.4dB @ 2.83V/1m |
| Voice coil diameter | Ø25.4mm (1") |
| Weight | 2.1kg |
| Thiele-Small Parameters | |
|---|---|
| Resonant frequency (Fs) | 49.1Hz |
| DC Resistance (Re) | 6.5Ω |
| Voice coil inductance (Le) | 0.8mH |
| Mechanical quality coefficient (Qms) | 5.08 |
| Electromagnetic quality coefficient (Qes) | 0.41 |
| Total quality coefficient (Qts) | 0.38 |
| Compliance equivalent volume (Vas) | 2.22 ft.³ |
| Mechanical compliance of suspension (Cms) | 0.98mm/N |
| Force factor (BL) | 7.21Tm |
| Diaphragm mass inc. airload (Mms) | 10.7g |
| Maximum linear excursion (Xmax) | 4.6mm |
| Surface area of cone (Sd) | 205.3cm² |
| Material | |
|---|---|
| Cone material | Paper / Kevlar |
| Surround material | Cloth |
| Frame / Basket material | Cast Aluminium |
| Magnet material | Neodymium |
| Mounting Informations | |
|---|---|
| Overall outside diameter | Ø221.5mm (8.72") |
| Baffle cutout diameter | Ø181.1mm (7.13") |
| Depth | 88.6mm (3.49") |
| Bolt circle diameter | 210.1mm (8.27") |
| Number of mounting holes | 6 |
| Optimum Cabinet Size (Determined with BassBox 6 Pro High Fidelity) | |
|---|---|
| Sealed volume | 0.52ft.³ |
| Sealed F3 | 103Hz |
| Vented volume | 1.1ft.³ |
| Vented F3 | 62Hz |
| Speaker Power (W RMS) | 40.0 |
| Speaker Type | Full range |
| Speaker Type | Midbass |
| Impedance (Ω) | 8 |
| Loudspeaker diameter (mm) | 203.0 |
| Diaphragm type | Kevlar |
| Diaphragm type | Paper |
| Efficiency / Sensitivity (dB) | 95.0 |
| Max Linear Excursion (Xmax) (mm) | 4.6 |
| Lowest frequency (Hz) | 43 |
| Highest frequency (Hz) | 10000 |