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Speaker Driver Midrange 40W 8 Ohm 94dB Ø13cm

This loudspeaker is a classic of the German designer. An expressive and articulate midrange sound with an output of 94dB, ideal for three-way speaker design. Inverted suspension, high temperature Kapton voice coil, low moving mass for optimal impulse behaviour make this model an ideal choice for high performance loudspeaker design.

| Specifications | |
|---|---|
| Product type | Speaker driver |
| Speaker driver type | Medium |
| Impedance | 8Ω |
| Frequency range | fx-8000Hz |
| Power | RMS : 40W Max : 80W |
| Sensitivity | 94dB/W/m |
| Voice coil diameter | Ø25.5mm |
| Magnet weight | 500g |
| Magnet diameter | Ø100mm |
| Thiele-Small Parameters | |
|---|---|
| Resonant frequency (Fs) | 120Hz |
| Mechanical compliance of suspension (Cms) | 0.44mm/N |
| Diaphragm mass inc. airload (Mms) | 4g |
| Mechanical quality coefficient (Qms) | 5.23 |
| Electromagnetic quality coefficient (Qes) | 1.06 |
| Total quality coefficient (Qts) | 0.88 |
| Compliance equivalent volume (Vas) | 3L |
| DC Resistance (Re) | 6.1Ω |
| Force factor (BL) | 4.2Tm |
| Voice coil inductance (Le) | 0.25mH |
| Max linear excursion (Xmax) | ±0.7mm |
| Surface area of cone (Sd) | 70cm² |
| Mounting informations | |
|---|---|
| Cutout diameter | Ø120mm |
| Depth | 67mm |
| Dimensions | 135 x 135 x 70mm |
| Weight | 1.3kg |
| Speaker Power (W RMS) | 40.0 |
| Speaker Type | Midrange |
| Impedance (Ω) | 8 |
| Loudspeaker diameter (mm) | 130.0 |
| Diaphragm type | Paper |
| Efficiency / Sensitivity (dB) | 94.0 |
| Max Linear Excursion (Xmax) (mm) | 0.75 |
| Lowest frequency (Hz) | N/A |
| Highest frequency (Hz) | 8000 |