Vintage Pioneer TS-M4 "Tune-Up" Speaker PairUp for sale is a classic piece of car audio history: the Pioneer TS-M4. These are highly sought-after "Tune-Up" speakers, designed to be mounted on the dash or rear shelf to enhance high-frequency clarity and provide a fuller "surround sound" feel in vintage vehicle setups.

Authentic Vintage Sound: Perfect for a 70s, 80s, or 90s restoration project.

Superior Build: Proudly Made in Japan by Pioneer Electronic Corp.

Performance: 30W Max Music Power with a clear 400Hz to 20,000Hz range.

Versatile: 8-Ohm impedance makes them compatible with a wide variety of vintage head units and amplifiers.