HPM-40/U1 (REF V)


Main Details
Maker Pioneer Brand Pioneer Electronic Corporation Company High Polymer Molecular Series
Form Factor Bookshelf / Stand Mounted
Signal Path Passive Hardware
Made In Japan
Date Produced 1978
(H × W × D)
Weight 28.6lbs
Frequency Response 35Hz-25kHz
Notes Second generation HPM-40 with updated driver types to match HPM-100. Identified by driver type and reference mark "V" stamped on cabinet. Parts not interchangeable with earlier variant.
Additional Specifications
Super Tweeter 180° Piezoelectric High Polymer Molecular film, Part #HP-015A
Treble 1.75" Carbonfiber Blended Cone Part #45-711B
Midrange/Bass 10" Carbonfiber Blended Cone Part #25-737A
Impedance (Nominal) 8Ω
Sensitivity 91dB/W/m
Crossover Frequencies 2.5kHz, 12kHz Network Assembly Part #SWN-154
Crossover Slope 6dB/Oct First Order
Power Handling (Nominal) 40W
Power Handling (Peak) 80W
Enclosure Type Bass Reflex
Enclosure Construction Particleboard
Finish Oiled Walnut
Input Spring Terminal
Treble Level Rotary Pot


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