SONY WM-DD9 Cassette Walkman Flagship Player Fully Serviced DD Quartz Top Model

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[Product Description] The Ultimate Holy Grail: SONY WM-DD9 DD QUARTZ Cassette Walkman (Fully Serviced / Professionally Calibrated). This is SONY's absolute flagship, highest-end premium portable cassette player in Walkman history. Featuring a legendary 2-motor dual-drive system, Quartz Lock DD mechanism, and an EX Amorphous Head, it delivers an unparalleled audiophile-grade acoustic performance that rivals high-end home cassette decks.

This is an authentic item officially purchased and distributed in Japan. Due to its status as the pinnacle of analog portable audio, fully restored and calibrated WM-DD9 units are exceptionally rare on the global market, making this an elite investment piece whose value continues to skyrocket year after year.

[Professional Maintenance Details (Completely Overhauled)] This holy grail unit has been meticulously serviced and calibrated to factory specifications by a specialist:

• Drive Belt: Replaced with a brand new, high-quality, high-durability drive belt.

• Capstan Tire: Replaced with a high-quality, high-durability capstan rubber tire.

• Pinch Roller: Replaced with a brand new, premium quality pinch roller (perfect shape, no flat spots or shininess).

• Calibration: Speed adjusted and wow & flutter measured using professional TEAC 3KHz -10dB Flutter & Speed TEST TAPE.

• Audio Head: Mirror-polished and deep-cleaned. Completely demagnetized using a professional TEAC E-3 head demagnetizer.

• Lubrication & Cleaning: Thoroughly cleaned the capstan shaft. Fresh silicone grease applied to all rotating gear sections.

• Electrical System: Removed oxidation film from metal contacts to restore perfect signal and current conductivity. Battery terminals are sparkling clean with absolutely no history of battery leakage.

• Sanitization: Exterior and accessories meticulously cleaned and sanitized with alcohol sheets.

[Operational Status]

• Tested & Working Perfectly: Long-term testing completed for Play, Stop, Fast-Forward, Rewind, and Auto-Reverse (Direction flip). Everything works flawlessly.

• The sound is crystal clear, free of excess noise, and delivers breathtakingly beautiful audio.

• Physical switches, option buttons, and the volume wheel operate smoothly with no scratchy noise (no scratchy pot).

• Important Note: To protect this premium vintage mechanism, please refrain from using cassette tapes longer than 90 minutes, heavily deteriorated vintage tapes, or low-quality overseas imitation tapes.

[Included Items]

• Everything shown in the photos is included. (Works perfectly on AA batteries or gum batteries).

[Size & Weight (Approx.)]

• Dimensions: Approx. 4.3 x 3.1 x 1.1 inches (Approx. 109 x 79 x 28 mm)

• Weight: Approx. 0.73 lbs (Approx. 330 g) [With batteries]

[Shipping]

• This is a priceless museum-grade audio instrument. It will be wrapped in anti-static protection and packed inside a heavy-duty box with maximum impact-absorbing premium cushioning to guarantee completely safe international transit.

• Tracking available for safe and reliable delivery.

[Important Notice Regarding Customs & Duties]

• Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.

• Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.

[Notes]

• Please open the package and check the condition of the item immediately upon arrival.

• Prices are constantly being reviewed. If you have any questions or serious offers, please feel free to contact me. Thank you for looking!