H1699-08/06
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SEAS Prestige Coaxial Drivers H1699-08/06 MR18REX/XF
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SEAS Prestige Coaxial Drivers H1699-08/06 MR18REX/XF
The MR18REX/XF is a midrange coaxial loudspeaker providing high quality sound in a very compact format. The cone of the midrange acts as a horn loading for the tweeter, and the chassis of the dome unit represents the throat of this horn.
The coaxially arranged precoated fabric dome high frequency unit has a smooth frequency response, and integrates with the cone driver to a point source. Voice coil windings immersed in magnetic fl uid increase short term power handling capacity and reduce the compression at high power levels.
The pre-coated reed-paper cone acts as a piston throughout the recommended frequency range.
The completely new rubber surround reduces resonances and prevents surround break up in the midrange band. The surround’s small inverted roll, combined with a profi le that follows the shape of the cone, results in almost total elimination of diffraction effects on the tweeter’s output.
Woofer | Tweeter | |
Nominal Impedance | 8 Ohms | 6 Ohms |
Recommended Frequency Range | 200-2200 Hz | 2000-25000 |
Short Term Power Handling * | 250 W | 220 W |
Long Term Power Handling * | 80 W | 90 W |
Characteristic Sensitivity (2.83V, lm) | 89 dB | 91 |
Voice Coil Diameter | 39 mm | 26 mm |
Voice Coil Height | 12 mm | 1.6 mm |
Air Gap Height | 6 mm | 2.0 mm |
Linear Coil Travel (p-p) | 6 mm | 0.4 mm |
Maximum Coil Travel (p-p) | 12 mm | - |
Magnetic Gap Flux Density | 1.1 T | 1.56 T |
Magnet Weight | 0.64 kg | - |
Total Weight | 2.02 kg | - |
Voice Coil Resistance | 6.2 Ohms | 5 Ohms |
Voice Coil Inductance | 0.43 mH | 0.05 mH |
Force Factor | 8.3 N/A | 3.1 N/A |
Free Air Resonance | 126 Hz | 1600 Hz |
Moving Mass | 11.8 g | 0.3 g |
Air Load Mass In IEC Baffle | 0.16 g | - |
Suspension Compliance | 0.1mm/N | - |
Suspension Mechanical Resistance | 4.26Ns/m | - |
Effective Piston Area | 126 cm2 | 7 cm2 |
VAS | 3 Litres | - |
QMS | 2.49 | - |
QES | 0.96 | - |
QTS | 0.69 | - |
*IEC 268-5CTweeter via high pass butterworth filter 3500 Hz, 12 dB/oct) SEAS reserves the right to change technical data
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