Technics - RS-1506US Reel to reel deck 26 cm

Technics RS-1506US – Isolated Loop – Fully Revisited – 4-Track
One of the most iconic legends of analog audio.
I am offering for sale this magnificent Technics RS-1506US (4-track version), produced during the golden age of Japanese Hi-Fi (circa 1977-1980). This model is famous for its unique "Isolated Loop" tape transport system with quartz-controlled direct drive, offering exceptional rotational stability.

Condition and Revision:
The unit has undergone a complete service by a professional. It is aesthetically in superb condition (see high-resolution photos) and fully functional in playback as well as in recording.
Technical note (Brakes):
For complete transparency, I should note that when stopping after a rapid winding (fast forward or rewind), the braking lacks a bit of bite, creating a small "mush" in the tape before immobilization. It is a minor point that does not affect sound quality or everyday use, but a simple tension adjustment can be made by the future owner for absolute perfection.
Prestige accessories included:
NAB adapters: A pair of high-quality adapters (Revox-style) for 26.5 cm reels.
Metal reels: Two legendary 10.5" (26.5 cm) reels included: one Maxell and one Akai.
Tapes: The reels contain magnetic tapes. Note: The recordings currently on these tapes were not made on this Technics, so listening quality may vary depending on the original alignment. However, recording tests performed on this machine after revision have been excellent.
Technical specifications:
Dimensions: 456 x 446 x 258 mm.
Speeds: 9.5, 19 and 38 cm/s.
Motors: 3 motors, Direct Drive.
Weight: approx. 25 kg (unit only). Local pickup preferred.
FOR SHIPPING: a double crate will be prepared
a polystyrene inner crate (3 cm) surrounded by a cardboard box with foam