The SB Acoustics Satori MR16PNW-4 is a high performance 6½ inch 4 ohm midrange loudspeaker drive unit featuring a unique composite cone made of paper and Egyptian Papyrus™ fibres. This drive unit is essentially the same as the MR16P-4 but features an undyed cone presented in it's natural finish. The colourant added to the MR16P-4 adds a touch of damping at the upper frequency extreme as can be seen if you carefully compare the frequency response graphs.
Also available in 8 ohms: MR16PNW-8
Key Features:
- Vented aerodynamic cast aluminium chassis for optimum strength and low compression.
- Proprietary cone material with EGYPTIAN PAPYRUS™ fibres made in-house.
- Soft low damping rubber surround for optimum transient response.
- Advanced BIMAX spider for improved linearity.
- Powerful optimized low distortion neodymium motor system.
- Non-conducting fibre glass voice coil former for minimum damping.
- Extended copper sleeve on pole piece for low inductance and reduced distortion.
- Long life silver lead wires attached 180° apart for improved stability.
- Vented pole piece and coil former for reduced compression.
- Gasket and bolt hole protrusions for reduced coupling to speaker cabinet.
- CCAW voice coil for reduced moving mass.
- Mode balanced cone for reduced break-up.
Basic parameters:
| Resonant frequency (fs) |
31 Hz |
Nominal impedance (Zn) |
4 Ω |
| Mechanical Q factor (Qms) |
4.85
|
DC resistance (Re) |
3.2 Ω |
| Electrical Q factor (Qes) |
0.26
|
Max power handling |
40 W |
| Total Q factor (Qts) |
0.25
|
Sensitivity (2.83V/1m)
|
91dB
|
| Equivalent volume (Vas) |
47.2L |
Chassis diameter
|
165mm
|
Here's the full datasheet:
