DB Drive P4M8C
Mid-range
8″ / 203 mm
Nominal diameter
109 Hz
Resonance
0.67
Q factor
95 dB
Sensitivity
325 W
Program Power
Discontinued
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 94.9
- dB
- Frequency response
- 115 - 2800
- Hz
- Resonance frequency (free air)
- fS
- 109
- Hz
- Mechanical quality factor
- QMS
- 4.21
- Electrical quality factor
- QES
- 0.79
- Total quality factor
- QTS
- 0.67
- Power handling
- P
- 200
- W
- Program power
- Pmax
- 325
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.2
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.19
- mH
- Force factor
- Bl
- 5.6
- N/A
- Motor constant
- Bl/√RE
- 3.13
- N/√W
- Effective diameter
- 172
- mm
- Effective area
- SD
- 233
- cm²
- Moving mass
- MMS
- 11.2
- g
- Moving mass (without air load)
- MMD
- 8.7
- g
- Stiffness
- KMS
- 5.26
- N/mm
- Compliance
- CMS
- 190
- µm/N
- Equivalent volume to the compliance
- VAS
- 14.6
- L
- Mechanical resistance
- RMS
- 1.83
- N·s/m
- Nominal diameter
- 8
- ″
- 203
- mm
- Volume occupied by the driver (estimated)
- 0.85
- L
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