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Lowther PM5


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Lowther PM5 high efficiency fullrange

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1 125,62 € tax incl.

-94,38 €

1 220,00 € tax incl.

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Lowther Loudspeaker Drive units are for use where only the finest standards of sound reproduction will satisfy. Their unique design and performance are world famous. Only the finest proven materials and micro-precision techniques are used in their production.

 The 'A' Series range maximises design potential enabling Lowther quality to be enjoyed in systems using single drive units to multi-unit assemblies such as Lowther's incomparable horn-loaded designs.


(1) Suitably housed, multi-unit assemblies do not necessarily require passive cross-over systems between bass, mid and high frequency units.
(2) All units are rated at 100 Watts.

DC Resistance of Voice Coil     Re     7.4 ohms
Free Air Resonance     Fo     45 Hz
Emission Piston Area     Sd     0.021M²
Equivalent Volume Suspension     Vas     57.767 Ltrs
Suspension Compliance     Cms     922.471 u M/N
Mass of Cone     Mmd     11.0 g
Mass of Moving Parts     Mms     12.75 g
Force Factor     Bl     11.652 T-M
Mechanical Q Factor     Qms     3.038
Electrical Q Factor     Qes     0.203
Total Q Factor     Qts     0.19
Voice Coil Inductance @ 1 kHz     Le     31.484 uH
Reference Efficiency     No     2.755%
Sound Pressure Level     SPL     96.42 Db

Overall Diameter     22.5 cm
Overall Depth     13.0 cm
Depth from rear of Mounting Frame     11 cm
PCD Mounting Centres     20.8 cm
Baffle Hole cut-out     19 cm
Magnet Ring Diameter     11.5 cm
Voice coil diameter     3.9 cm
Voice coil impedance (nominal)     8 or 15 ohm
Air gap width     1 mm
Air gap height     5 mm
Magnet type     Alcomax 3
Flux density (I Tesla=10,000 Gauss)     2.3 Tesla
Diaphragm     Twin Paper
Frequency response     30 Hz-20kHz
Maximum voice coil travel     ± 1 mm
Shipping weight     6.5 kg



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Lowther PM5

Lowther PM5

Lowther PM5 high efficiency fullrange