SONY ST-S 550 ES Rare Vintage Stereo Tuner Japan Serviced Warranty 1991

SONY ST-S 550 ES Vintage FM/AM Stereo Tuner ES Series Japan 1991 Serviced

🎙️ Time That Still Sounds

Close your eyes and return to the early 1990s…
A time when radio meant quality music, and Sony engineers built components to last decades.

The Sony ST-S 550 ES , part of the legendary ES (Elevated Standard) Series , represents precision tuning, stability, and refined FM sound — a true high-end component of its era.

👤 If you're reading this — you understand

You're not looking for a generic digital tuner.
You're looking for true audiophile FM reception , musical, stable, and clean.

Whether you are a Sony ES collector, vintage audio enthusiast, or building a classic early-90s Sony system — ST-S 550 ES is the perfect match.

🎧 What you get (beyond radio reception):

🎼 Clean, stable FM sound with excellent signal-to-noise ratio
🎛 Legendary Sony ES build quality
📻 Reliable FM / MW / LW reception
🧩 A visually and technically refined vintage component
🎁 A valuable addition to any Sony ES collection

This tuner has traveled a long way from Germany, was carefully selected, preserved in original condition, and is ready for a new owner.

🧠 Interesting fact / model history

Sony's ES (Elevated Standard) line was created for demanding audiophiles and professional users.
The ST-S 550 ES , released in the early 1990s, focused on high selectivity, low distortion, and stable digital memory — qualities that keep it desirable among collectors today.

📦 Dimensions & Weight

📏 Dimensions (W × H × D):
Metric: 43 × 8.5 × 36 cm
Imperial: 16.9 × 3.35 × 14.2 inches

⚖️ Weight:
Metric: 4 kg
Imperial: ≈ 8.8 lb

⚙️ Technical Information

Model: Sony ST-S 550 ES
Manufactured in: Japan
Year: approx. 1991

Type: Mono / Stereo Tuner
Tuning bands: FM / MW / LW
Tuning scale: Digital

FM range: 87.5 - 108 MHz
MW range: 531 - 1602 kHz
LW range: 153 - 279 kHz

Sensitivity:
FM — 1.8 µV
MW — 250 µV
LW — 700 µV

Signal-to-Noise Ratio:
FM — 72 dB
MW — 50 dB
LW — 50 dB

Distortion:
FM — 0.08%
MW — 0.4%
LW — 0.4%

Selectivity (FM): 90 dB
Output voltage: 750 mV (FM)

Power supply: 220V / 50Hz (European version)
Plug type: EU 2-pin (adapter required for UK/US).

📝 Product Description

Please see the pictures of the products for more details about the condition of the products.
Fully tested. In working condition. Please inspect all images for condition reference.
If you have any questions or concerns, please do not hesitate to contact me.
⚡ Please check and take into account the specifics of your local electrical network. If necessary, purchase a voltage adapter (not supplied).
❗ Cassettes, Reels, Vinyl records shown in the photos are for demonstration purposes only and are not included in the sale.

🔒 Warranty

All buyers are granted a 30-day Global ORT warranty on product functionality.
Before sending, you receive a control test video to check the functionality, cosmetic condition, and the quality of the packaging.
Should any issues arise, you can contact us for post-warranty support and repair services.
For an additional fee, you can opt for an extended warranty of 6 or 12 months.
Please reach out to discuss details and pricing.

📦 Shipping

The item will usually be shipped within 2-3 business days after your full payment has been received.
I will send you the tracking number once your order has been dispatched.
The items are shipped from the USA, Poland and Ukraine.
Standard shipping: approximately 10 working days.

📌 Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.
I will try my best to reduce the risk of customs duties.
Please check with your country's customs office to determine what these additional costs will be prior to buying.

For US buyers: Starting from August 29, 2025, all incoming parcels to the US will be subject to taxes, duties, and fees.
All customs charges for US shipments will be covered by GLOBAL ORT.

🌍 Worldwide Delivery Available
I have extensive experience shipping fragile vintage audio equipment to any point on the planet.
This listing already includes shipping options for the most common destinations.
If your country is not listed — just contact me.

⭐ Feedback

Your satisfaction is my first priority.
If you are satisfied with your purchase, please leave positive feedback — I truly appreciate it.
If you have any questions or concerns, please contact me first.

📩 Contact Me

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I always respond within 24 hours.

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🙏 Thank you!
— Igor ORT