Pioneer HPM-100 Pair Of Speakers – Professionally Restored – 1 Year WRT

ABOUT

The Pioneer HPM-100 is a true icon of the late 1970s — engineered under the direction of ex-JBL designer Bart Locanthi to rival the legendary L100.

Featuring a 12″ carbon-fiber woofer, dome midrange, cone tweeter, and supertweeter, it delivers the signature “West Coast Sound” with powerful dynamics and sparkling detail.

Built like a tank with walnut veneer cabinets and precision crossover design, the HPM-100 remains one of the most collectible and best-sounding Pioneer speakers ever produced.

This pair has been fully serviced and restored, ensuring flawless performance and stunning presentation.

Customer Service:

Once your item arrives, if you have questions about how your item functions or proper settings, please CONTACT US.

TRADE-IN PROGRAM

“If you have any vintage audios (receivers, speakers, cassette, reel to reel…) & want to upgrade with the serviced one, don’t hesitate to contact us for the best deal. You only need to pay for the difference between yours & mine….”

Note:

The actual color of the product may sometimes differ slightly from the photos due to lighting conditions, temperature, and the device used. Some angles in the photos may not fully reflect the product’s condition. Please read the description carefully and feel free to message us if you have any questions.

SPECS:

• Type: 4 way, 4 driver loudspeaker system
• Frequency Response: 30Hz to 25kHz
• Power Handling: 50W
• Crossover Frequency: 3000, 4000, 12000Hz
• Impedance: 8Ω
• Sensitivity: 92.5dB
• Bass: 1 x 300mm cone
• Midrange: 1 x 100mm cone
• Tweeter: 1 x 45mm cone
• Super Tweeter: 1 x HPM high polymer
• Enclosure: bass reflex
• Dimensions: 15.4″ × 26.4″ × 15.5″
• Weight: 58.9 lbs
• Year: 1976

KEY FEATURES

• 4-way design: 12″ carbon-fiber woofer, 4″ mid, 1¾” tweeter, and supertweeter
• Frequency response: 30Hz–25kHz — extended highs with deep, clean bass
• Crossovers recapped and balanced to original factory curve
• Cabinets refinished in real walnut veneer — satin finish restored
• Original Pioneer badges and grilles reconditioned to collector-grade finish
• Drivers inspected, cleaned, and phase-aligned — smooth, distortion-free output
• Tested over 3 hours continuous playback – clear, dynamic, and well-balanced sound

REFURBISHED

This pair of Pioneer HPM-100 speakers has been professionally restored and fully tested by our team to bring back the powerful, dynamic sound that made the HPM series legendary.

1. Acoustic Restoration

All original Pioneer drivers (woofer, midrange, tweeter, and super-tweeter) were carefully inspected and measured for impedance, ensuring perfect working balance across both channels.

Crossovers were cleaned, serviced, and verified for accurate frequency division, restoring the open, detailed soundstage characteristic of the HPM-100.

Internal wiring and solder joints were re-tinned and re-checked for long-term signal stability.

Level controls were cleaned and lubricated for smooth and noise-free operation.

2. Cabinet & Cosmetics

Cabinets were refinished in natural walnut veneer, polished and sealed to preserve the classic Pioneer tone and grain.

Front baffles were cleaned, and all driver mounting hardware restored.

Rear terminal panels were reconditioned for reliable connection and long-term durability.

New grille fabric was fitted to maintain the original aesthetic while improving ventilation and protection.

3. Listening & Reliability Test

Each speaker was run through a 3-hour continuous sound test with multiple amplifiers to verify tonal accuracy and stability.

Frequency response and channel matching were confirmed for balanced, lifelike playback.

Result:

A collector-grade pair of Pioneer HPM-100 speakers, fully functional and visually refined — ready to deliver the bold, articulate sound that defined the golden era of Pioneer.

SUGGESTED PAIRINGS

Matches beautifully with Pioneer SX-1050, Marantz 2270, or Sansui 9090DB receivers for a perfect 1970s full-power system.

Pair with a Technics SL-1200 or Revox B77 deck for an authentic analog experience.

💡 Buy as a combo and save $100 — message us for details!

PACKAGING & SHIPPING

Secure Packaging:

Factory foam inserts and original cartons (if available)

Additional internal padding and wrap for transit protection

Double-wall outer box with corner guards and straps

Shipping Details:

Dispatch Time: Ships within 3 business days

Carrier: UPS Ground (tracked & insured)

Signature Required: Yes (as buyer’s request)

Transit Time: Typically 3–7 business days (USA)

International Shipping:

We offer global delivery through the eBay International Shipping Program. eBay handles customs, duties, and tracking.

📦 Note: Packaging may vary slightly depending on unit size or availability, but safety and protection are always our top priority.