Pioneer HPM-700 (1980–1982)
A high-fidelity, 4-way bass-reflex loudspeaker system designed by Bart Locanthi and his team of ex-JBL engineers.
Overview
The Pioneer HPM-700 is a 4-way, 4-driver loudspeaker system built between 1980 and 1982. It features a bass-reflex cabinet design and is part of Pioneer’s HPM series, which includes the HPM-500, HPM-700, HPM-900, and HPM-1100—all sharing a common service manual addition document. These speakers are noted for their horn-loaded high polymer driver technology and are considered rare by collectors. They were originally priced at approximately $275 USD or 700 DM.
Specifications
| Type | 4-way, 4-driver loudspeaker system |
| Dimensions | 350 x 610 x 321 mm (WxHxD) |
| Weight | 14.8 kg |
| Nominal Impedance | 8 ohms |
| Power handling | 120 watts |
| Woofer size | 10-inch |
| Frequency Response | 30Hz to ... |
| Cabinet type | Bass-Reflex |
Design
The HPM-700 was designed by Bart Locanthi and his team of ex-JBL engineers. It uses horn-loaded high polymer type drivers and features a 4-way configuration with a 10-inch woofer. The cabinet employs a bass-reflex design to enhance low-frequency response.
Context
The HPM-700 is part of a series that includes the HPM-500, HPM-900, and HPM-1100, all covered under a shared service manual addition document. It was positioned within Pioneer’s high-fidelity speaker lineup during the early 1980s.
Market
These speakers are often acquired as "projects" and may require restoration, with a common issue being missing midrange drivers. Owners sometimes seek help restoring units with non-OEM components. They are described as very rare, and enthusiast discussion exists on forums like AudioKarma. Original price was approximately $275 USD or 700 DM.
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