• Cosmetic condition as in the photos. • 30 days Global OPT Warranty. • Video demo available. • Worldwide shipping with careful packaging. • For an extended warranty, please contact us before payment.

Technical Info:

Model: Harman/Kardon HK-6600

Device type: Integrated stereo amplifier

Rated output power: 2 x 90 W (0.08%, 4–8 Ohm)

Power supply: BANDO transformer with separate secondary windings, separate channel rectification

Capacitors: MATSUSHITA audio grade, 27,200 μF total capacitance

Phono stage: Multi-stage MM/MC phono preamplifier

Connections: Heavy-duty screw speaker terminals, equalizer loop

🎧 What you get beyond the sound

With its discrete architecture featuring powerful Toshiba output transistors and a robust dual-rectified power supply, this amplifier delivers substantial dynamic headroom and effortless control over demanding acoustic loads. The built-in multi-stage MM/MC phono input provides direct, pure vinyl playback without requiring external preamplification.

The front panel offers tactile mechanical engagement, complete with source switching and an equalizer loop for versatile system integration. Its clean industrial aesthetic makes it an imposing centerpiece in any dedicated stereo setup.

This is more than a used vintage device. A unit in this condition has already passed a long journey: it was selected, inspected, prepared, and photographed honestly so the buyer can understand exactly what is being purchased. Many similar units online may be cheaper, but they may also be dusty, incomplete, unserviced, cosmetically weaker, or sold without proper testing.

🧠 Collector’s / Model Note

The HK-6600 was engineered as Harman/Kardon's flagship integrated amplifier of its series, emphasizing high instantaneous current capability

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📝 Product Description

The first image is an AI-generated promotional visual and may differ from the actual item.

All subsequent photos are part of the description and show the actual item and its condition.

Demonstration tapes, reels, records, or accessories shown for demonstration purposes are not included unless explicitly stated.

Please check the voltage requirements in your area; Adapter not included.

👉 Warranty and Service

Includes a 30-day global OPT warranty.

You will receive a product and packaging inspection video before shipping.

Repairs, maintenance, and extended warranties are available upon request.

📦 Shipping

Shipping within 2-3 business days after payment.

A tracking number will be provided.

Standard shipping takes approximately 10 business days.

Import duties, taxes, and customs fees are the responsibility of the buyer.

🌍 Worldwide Shipping

I have 20 years of experience shipping delicate vintage audio equipment worldwide.

If your country is not listed, please contact me for shipping options.

🔄 Exchange Options

Equipment purchased from us can be exchanged.

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🙏 Thank you!

— Igor ORT