4 Way 4 Speaker Floor Type Bass Reflex Speaker System (1977-81)
The Pioneer HPM-150 is a 4-way, 4-speaker floor-type bass-reflex system with tweeter and midrange level controls on the front panel.
It incorporates a 400mm carbon fibre blended woofer with long throw voice coil, a 100mm midrange with edge-wound voice coil, a 45mm lightweight cone tweeter (all three mounted in diecast aluminium frames to prevent basket resonance), plus a polymer horn-loaded omnidirectional super tweeter giving 270 degrees of horizontal dispersion.
The HPM-150 can handle amplifiers up to 300 watts per channel.
Type: 4 way, 4 driver loudspeaker system
Frequency Response: 25Hz to 25kHz
Power Handling: 250W
Crossover Frequency: 750, 2600, 8500Hz
Bass: 1 x 400mm cone
Midrange: 1 x 100mm cone
Tweeter: 1 x 45mm cone
Super Tweeter: 1 x HPM high polymer
Enclosure: bass reflex
Dimensions: 450 x 984.5 x 450mm
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