AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf SpeakersDiscontinued
Estimated price (community-sourced)
$65
Around — community and catalog average, updates slowly
About the Monitor 4
The Polk Audio Monitor 4 is a vintage 2-way bookshelf loudspeaker produced from 1982 to 1985. It uses a 1-inch SL1500 dome tweeter and a 6.5-inch midrange driver in an 8-ohm enclosure. Published specifications include a 35Hz–25kHz frequency-response range, 91dB efficiency, and recommended amplifier power of 20–100 watts per channel. The cabinet measures approximately 14.5 inches high by 8.5 inches wide by 7.5 inches deep, with a listed weight of about 24 pounds per pair.
Specifications
Key Specifications
Sensitivity: 91 dB
Impedance: 8Ω
Frequency: 35-25000 Hz
Full structured specifications are available to members.
Sign up to see full specifications