Pioneer CS-51

Commentary

The first small system developed by Pioneer, which won the Good Design Award at the time.

The unit is a 2-way configuration and employs a 12 cm cone type PE-12 and a 6 cm cone type tweeter, which are combined by an LC type network.

The enclosure is designed with a walnut oil finish and an ultra-thin punching net and metal sash on the front.
In addition, a large amount of glass wool with excellent sound absorption is used inside the cabinet to suppress the disturbance of sound waves inside and improve the reproduction sound.

There were 2 kinds of punching net in front, black and silver.

Model Rating

Method	2-Way, 2-Speaker, Airtight Type, Bookshelf Type
Units Used	For Low Band : 12 cm Cone Type (PE-12) For high pass : 6 cm cone type
Impedance	16 Ω
Playback frequency band	50 Hz to 20000 Hz
Output sound pressure level	93dB/W
Max Input	20W
Crossover frequency	2500Hz
External dimensions	Width 150x Height 250x Depth 166 mm
Weight	3.8kg
Attachment	Wall mount fittings Parallel cable for wiring