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This Monacor SPH-200CTC low-midrange driver offers excellent sound reproduction. It features a coated paper cone and rubber suspension for optimum bass reproduction. This model is also highly versatile, and can be used in a wide range of applications.

Technical characteristics
| Specifications | |
|---|---|
| Speaker driver type | Low-midrange speaker |
| Nominal diameter | Ø17.1cm |
| Power handling | RMS : 70W Max : 120W |
| Impedance | 8Ω |
| Frequency repsonse | 39Hz - 4500Hz |
| Sensitivity | 90dB/W/m |
| Voice coil diameter | Ø25mm |
| Magnet weight | 450g |
| Magnet diameter | Ø90mm |
| Weight | 1.23kg |
| Thiele-Small parameters | |
|---|---|
| Resonant frequency (Fs) | 39Hz |
| DC resistance (Re) | 6.6Ω |
| Voice coil inductance (Le) | 0.75mH |
| Mechanical quality coefficient (Qms) | 2.27 |
| Electromagnetic quality coefficient (Qes) | 0.44 |
| Total quality coefficient (Qts) | 0.37 |
| Volume of air mass equivalent to mobile crew compliance (Vas) | 27L |
| Mechanical suspension compliance (Cms) | 1.01mm/N |
| Moving mass (Mms) | 14g |
| Force factor (BL) | 7.7Tm |
| Maximum linear excursion (Xmax) | ±5.5mm |
| Surface area of cone (Sd) | 140cm² |
| Materials | |
|---|---|
| Cone | Coated paper |
| Basket | - |
| Voice coil former | Aluminum |
| Mounting informations | |
|---|---|
| Total external diameter | Ø175mm |
| Cutout diameter | Ø144mm |
| depth | 75mm |
| Bolt circle diameter | Ø144mm |
| Number of mounting holes | 4 |
| Speaker Power (W RMS) | 70.0 |
| Speaker Type | Midbass |
| Impedance (Ω) | 8 |
| Loudspeaker diameter (mm) | 176.0 |
| Diaphragm type | Paper |
| Efficiency / Sensitivity (dB) | 90.0 |
| Max Linear Excursion (Xmax) (mm) | 5.5 |
| Lowest frequency (Hz) | N/A |
| Highest frequency (Hz) | 4500 |