Vintage Pioneer Hpm-100 Speakers In Studio

Pioneer HPM-100 4-Way Speakers Pair – Walnut Cabinets – Professionally Restored – 1-Year Warranty

Name: Pioneer HPM-100 4-Way Speakers Pair – Walnut Cabinets – Professionally Restored – 1-Year Warranty - HQaudios
SKU: 1TOLC2798
Price: 3899 USD
Availability: InStock

$3,899

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SKU: 1TOLC2798 Categories: Refurbished, PIONEER, SPEAKERS

Description
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Pioneer HPM-100 4-Way Speaker Pair

Professionally Restored by HQaudios – Inspected & Tested – Backed by Our 1-Year Warranty

KEY HIGHLIGHTS

Pioneer HPM-100 four-way, four-driver loudspeaker pair

12-inch carbon-fiber-blend woofer

4-inch cone midrange

1.75-inch cone tweeter plus HPM high-polymer supertweeter

30 Hz – 25 kHz frequency response

92.5 dB sensitivity

8-ohm nominal impedance

100 W maximum input / 50 W rated input

Front bass-reflex port and mid/high level controls

Professionally restored and tested by HQaudios

Backed by our 1-Year HQaudios Warranty

PRODUCT OVERVIEW

The Pioneer HPM-100 is a classic four-way loudspeaker system from Pioneer’s HPM series, combining a 12-inch carbon-fiber-blend woofer, cone midrange, cone tweeter, and high-polymer supertweeter in a bass-reflex enclosure.

This pair is the 100 W maximum-input version with 50 W rated input and 8-ohm impedance. Factory specifications list a 30 Hz – 25 kHz frequency range and 92.5 dB sensitivity.

HQaudios restored this pair with attention to the driver presentation, cabinet and grille condition, reassembly, and final operational testing.

HQAUDIOS RESTORATION & TESTING

Before Restoration

When we received this Pioneer HPM-100 pair, we inspected the woofer, midrange, tweeter, supertweeter, cabinets, grilles, level controls, rear terminals, and overall physical condition.

The pair showed age-related grille and cabinet wear, and some driver surfaces required cosmetic correction before reassembly and final testing.

During Restoration

We cleaned and detailed the cabinets, baffles, grilles, driver surfaces, and exterior hardware.

Driver Detailing: Our technicians corrected the dented driver surfaces found during inspection.

Speaker Inspection: We checked the woofer, midrange, tweeter, supertweeter, level-control, and rear connection areas.

Reassembly: We reassembled both speakers and prepared the pair for final testing.

After Restoration / Final Testing

We tested the complete HPM-100 pair after reassembly using real music and checked operation across all four driver sections.

Woofer Output: Both 12-inch woofers produced stable low-frequency output during playback.

Midrange Output: Both cone midrange sections produced clear and consistent output through the midrange.

Tweeter Output: Both cone tweeters produced clean and consistent high-frequency output.

Supertweeter Output: Both HPM supertweeter sections produced upper-frequency output during the final listening test.

Level Controls: The mid and high level controls responded normally during adjustment.

Rear Connections: The rear speaker terminals maintained reliable signal contact throughout testing.

Left / Right Operation: Overall output remained consistent between both speakers during final playback.

Final Listening Test: The complete pair passed the final listening and operational test after restoration.

CONDITION

Technical Condition

Woofer Sections: Both 12-inch woofer sections were inspected and tested after service. Both speakers produce stable low-frequency output during final playback.

Midrange Sections: The cone midrange sections in both cabinets were tested and produce clear, consistent output through the midrange.

Tweeter Sections: Both cone tweeters were checked during final playback and produce consistent high-frequency output across the pair.

Supertweeter Sections: Both HPM supertweeter sections were tested, with upper-frequency output present on both speakers.

Level Controls: The front-panel mid and high level controls were checked during operation and respond normally during adjustment.

Rear Connections: The rear speaker terminals were inspected and provide reliable signal contact during final testing.

Left / Right Balance: Both speakers were compared during final playback. Overall output remains consistent between the pair.

Final Listening Test: A full post-restoration playback test using real music was completed across all four driver sections.

Cosmetic Condition

Cabinets / Veneer: The walnut-finish cabinets were cleaned and detailed. Normal vintage marks remain visible on some surfaces, edges, and corners.

Front Baffles: The black front baffles present cleanly and retain the original HPM-100 control layout and driver arrangement.

Grilles: Both grille assemblies were cleaned and installed. The cloth and frames present neatly overall with age-related wear consistent with vintage use.

Drivers: Driver surfaces were cleaned and detailed, and the previously dented areas now present more evenly after service.

Controls / Trim: Mid and high level-control knobs, trim pieces, and front-panel hardware are present and cleanly presented.

Rear Panels / Labels: Rear terminal panels and Pioneer identification labels remain present and readable.

Overall Presentation: A carefully detailed HPM-100 pair that retains its original vintage character, with normal age-related cosmetic wear remaining where visible in the listing photos.

All Four Driver Sections Output Verified

Level Controls Operation Checked

Left / Right Output Verified

Final Listening Test Completed

SPECIFICATIONS

Brand: Pioneer

Model: HPM-100

Type: 4-Way, 4-Driver Passive Loudspeaker System

Enclosure: Bass Reflex

Woofer: 12-inch / 300 mm carbon-fiber-blend cone

Midrange: 4-inch / 100 mm cone

Tweeter: 1.75-inch / 45 mm cone

Supertweeter: HPM high-polymer type

Frequency Response: 30 Hz – 25 kHz

Sensitivity: 92.5 dB / 1 W / 1 m

Nominal Impedance: 8 Ohms

Maximum Input Power: 100 W

Rated Input Power: 50 W

Crossover Frequencies: 3 kHz / 4 kHz / 12 kHz

Dimensions: 390 W × 670 H × 393 D mm – each speaker

Weight: 26.7 kg / 58 lb 12 oz – each speaker

Manufacturing Marking: Made in Japan

Actual Finish: Walnut-finish cabinets with black baffles and black grilles

WHAT IS INCLUDED

1 Pair of Pioneer HPM-100 Speakers

2 Grille Assemblies shown in the listing photos

Only the items specifically listed above are included.

Speaker stands / wood bases shown in any photographs are display accessories only and are NOT included with the sale.

SHIPPING & PACKAGING

Your vintage audio equipment will be professionally packed by HQaudios using protective materials appropriate for its size, weight, and construction. Large or heavy items may be palletized and shipped by freight when required for safer transportation.

HQaudios Professional Shipping and Packaging

Please contact us before purchase for the most current availability information.

1-YEAR WARRANTY & CUSTOMER SUPPORT

Your purchase is backed by our 1-Year HQaudios Warranty. Our team provides support before and after your purchase. If you have questions about setup, operation, compatibility, or your order, please contact HQaudios for assistance.