Pioneer

HPM-60/U2

Speaker

Main Details
Maker Pioneer Brand Pioneer Electronic Corporation Company High Polymer Molecular Series
Function
Additional Model ID HPM-60/U2 (REF Q)
Form Factor Bookshelf / Stand Mounted
Signal Path Passive Hardware
Made In Japan
Date Produced 1978-1979
Dimensions
(H × W × D)
Weight 37.5lbs
Frequency Response 35Hz-25kHz
Notes Second generation HPM-60 with updated driver types to match HPM-100. Identified by driver type, listed power rating and stamped reference mark 'Q' on rear of cabinet and box on non-U models. Parts not interchangeable with earlier variant.
Additional Specifications
Supertweeter 180° Piezoelectric High Polymer Molecular film, Part #HP-015A
Treble 1.75" Paper Cone Part #45-711B
Midrange 4" Paper Cone Part #10-726A
Bass 10" Carbon fiber Blended Cone Part #25-737A
Impedance (Nominal) 8Ω
Sensitivity 92.5dB/W/m
Crossover Frequencies 1.9kHz, 3kHz, 12kHz Network Assembly Part #SWN-155
Crossover Slope 6dB/Oct First Order
Power Handling (Nominal) 60W
Power Handling (Peak) 120W
Enclosure Type Bass Reflex
Enclosure Construction Particleboard
Finish Oiled Walnut
Connections
Input Spring Terminal
Controls
Midrange Level Rotary Pot
Treble Level Rotary Pot

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