Zakup na początku lat 80 w sklepie Pewex. Pierwszy właściciel. Stan gabinetowy. Od paru lat używane sporadycznie. W zapasie kpl. głośników niskotonowych.. ODBIÓR OSOBISTY.Kontakt wyłącznie telefoniczny: 662 [zasłonięte] 270. Specifications Floor stand 4 Way System 4 Speaker Bass-Reflex Style Loudspeaker Maximum Input Power 120 W Rated Power 60 W Graphite Woofer 25 cm Midrange 10 cm Tweeter 4,5 cm and Super Tweeter Nominal Impedance 8 Ohm Miscellaneous Dimensions 350 x 610 x 321 mm 13.8 x 24 x 12.6 inch the legendary loudspeaker from Pioneer ! the HPM series ! source from wikipedia The Pioneer HPM-700 is a high fidelity 4-way, 4-speaker Bass-Reflex loudspeaker system designed by Bart Locanthi and his team of ex-JBL engineers, manufactured in Japan for the Pioneer Electronic Corporation from 1976 to 1979. Many still exist in complete working order, with all original parts, due to the speaker being engineered for endurance, and reliability, and longevity. HPM stands for “High Polymer Molecular”, in reference to its then newly-developed high polymer molecular film supertweeter, a design that is used to convert electrical energy into sound to a degree that had previously only been theory. It is damped by elastic materials to prevent the deterioration of its best characteristics, and eliminates excessive harmonic distortion. It is housed in a plastic case, with the film (and grille) shaped semi-cylindrically in order to project the sound all 180 degrees around the front of the speaker. The HPM super-tweeter design has no dome, magnet, voice coils, or any moving parts at all. The frequency response of this driver ranges up to 25 kHz, exceeding the capacity of the human ear.