Dolby - SEU4 (19" Rackmount Dolby Encoder Unit) Audio amplifier





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Dolby SEU4 19-inch rackmount Dolby encoder unit in good physical condition and tested and working, weighing 6 kg, with 4 balanced analog inputs (L, C, R, S) and balanced outputs (Lt/Rt), an External Processor Loop via XLR, and a sturdy 1U steel housing.
Description from the seller
A rare and historic Dolby Model SEU4 surround matrix-encoder in a rugged 19-inch enclosure (1U high). Introduced in the late 1980s, this analog device was the industry-standard workhorse in professional film and television studios for encoding Dolby Surround soundtracks.
The SEU4 combines 4 discrete analog input signals (Left, Center, Right and Surround) into a coded stereo signal (Lt/Rt). This made surround sound distribuable via traditional two-channel media such as VHS tapes, analog television broadcasts, and CDs, which could then be decoded at home with a Dolby Pro Logic system.
Specifications:
- Authentic analog Dolby Surround matrix technology.
- Balanced XLR inputs (L, C, R, S) on the back.
- Balanced XLR outputs (Lt / Rt).
- Equipped with External Processor Loop (EPL) via XLR connections.
- Front panel equipped with LED calibration meters and trim pots.
- Sturdy steel enclosure in 19-inch rack format (1U high).
The Dolby works perfectly.
For a better impression see photos
A rare and historic Dolby Model SEU4 surround matrix-encoder in a rugged 19-inch enclosure (1U high). Introduced in the late 1980s, this analog device was the industry-standard workhorse in professional film and television studios for encoding Dolby Surround soundtracks.
The SEU4 combines 4 discrete analog input signals (Left, Center, Right and Surround) into a coded stereo signal (Lt/Rt). This made surround sound distribuable via traditional two-channel media such as VHS tapes, analog television broadcasts, and CDs, which could then be decoded at home with a Dolby Pro Logic system.
Specifications:
- Authentic analog Dolby Surround matrix technology.
- Balanced XLR inputs (L, C, R, S) on the back.
- Balanced XLR outputs (Lt / Rt).
- Equipped with External Processor Loop (EPL) via XLR connections.
- Front panel equipped with LED calibration meters and trim pots.
- Sturdy steel enclosure in 19-inch rack format (1U high).
The Dolby works perfectly.
For a better impression see photos

