DUPAUDIOVINTAGE HI-FI · WISCONSIN

COLLECTED. RESTORED. ENJOYED.

Vintage sound.
A second life.

The glow of a dial. The feel of a solid tuning knob. The music that makes you stay for one more record.

Welcome to Dave’s collection of classic receivers, amplifiers, and speakers in Sauk City, Wisconsin.

THE ANALOG COLLECTION / No. 01Reference photograph of a Pioneer SX-770 receiver with wood cabinet and illuminated dial
PIONEER SX-770Wood. Metal. Music.
Model reference photo · Hark Paris
Complete inventory ↗The wish list ↗Current bench projects ↓
PIONEERMARANTZKENWOODYAMAHACERWIN-VEGAALLIEDONKYO

01 / THE COLLECTION

Good equipment.
Still making music.

Browse the collection, find available pieces, or follow a classic on its way back to the listening room.

Collection updated October 21, 2026

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View the complete item list, speakers & wish list ↗

Inquire for current pricing, availability, condition, and pickup arrangements. Reference images illustrate the model and are not photographs of the actual item offered. Model dates and power figures follow the collection records and may vary by market or rating standard.

02 / THE SPEAKER MUSEUM

Built to move air.
And a little history.

A place for the speakers in the collection: Cerwin-Vega’s unmistakable red surrounds and Marantz’s wood-cabinet classics.

PERSONAL COLLECTION · NOT SALES LISTINGS

Speaker photographs are model references, credited below. Collection condition: working / reconed. Speaker wattage is power handling, not amplifier output; original rating standards differ, so speaker wattage is omitted here.

FROM THE PAPER ARCHIVE

Before the internet,
there was the brochure.

Explore the original product literature that introduced these speakers to their first owners.

03 / AT THE BENCH

A little patience.
A lot of listening.

Vintage audio is as much about the journey as the finished piece. A dirty switch, a tired capacitor, or a quiet channel can turn into a satisfying evening at the bench.

My work includes cleaning controls, replacing lamps, checking components, and repairing faults. Each unit has its own history; restoration details are confirmed for that specific piece.

Ask about a piece ↗
01

Clean & inspect

Start with the controls, connections, and the details years of use leave behind.

02

Repair & restore

Find the fault, check the parts, and bring the music back one circuit at a time.

03

Listen & enjoy

Because the best part of keeping old equipment going is hearing it play again.

Current bench projects

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LET’S TALK HI-FI

Something
catch your ear?

Ask about an available receiver, a restoration project, or a speaker in the museum.

Email Dave ↗SAUK CITY, WISCONSIN
Photo & source credits

Inventory is a curated snapshot of Dave’s DP Stereo List, updated October 21, 2026. The collection cards are a curated snapshot. Visit the Wish list for future additions to the collection.

Model reference photography: Pioneer SX-770, Hark Paris; Pioneer SX-440, Hark Paris; Cerwin-Vega VS-80, The Turntable Store; Cerwin-Vega VS-120, EJ’s Auction; Cerwin-Vega VS-150, Audio Mart; Marantz HD-880, Munkonggadget; Kenwood KR-7600, The Turntable Store. These photos show representative examples, not the actual collection units. All brand names belong to their respective owners.

Additional model reference photography: Allied 333 (Pioneer SX-34) — US Audio Mart; Allied 335 — eBay; Pioneer SX-780 — Classic Audio; Pioneer SX-990 — Golden Age of Audio; Kenwood KR-6600 — Bolha; Fisher 201 — Hifi-Wiki; JVC RX-503BK — AudioBaza; Yamaha RX-300U — The Turntable Store; Yamaha CR-440 — Classic Hi-Fi; Marantz 2270 — Hifi-Wiki; Pioneer SA-6700 — MK Pro Audio; Onkyo TX-SV717PRO — The Music Room; Onkyo A-905X — Amberone; Pioneer SX-1000TW — eBay; Yamaha EQ-70 — TekRevolt; Pioneer SG-300 — The Turntable Store; Onkyo EQ-140 — Catawiki.