The Koss PRO4AA is a full-size, over-ear wired headphone designed for studio, broadcast, and recording use, with noise-isolating earcups and sound reproduction suited to close listening.
Recommended For
- Stationary radio or studio users who want a wired, closed-back headphone for monitoring in a fixed setup; Koss positions the PRO4AA for professional use, and its closed design is intended to reduce outside noise.
- Home listeners who prioritize a sturdy, traditional wired build and noise isolation over a lightweight, modern design; owners describe it as durable and useful for tuning out surrounding sound.
- Listeners with a stereo, interface, or other setup that accepts a 1/4-inch plug who want a long coiled cable for use near their equipment.
- Retro-audio enthusiasts who specifically want the PRO4AA’s classic appearance and traditional wired listening experience, and are comfortable with a heavier, firm-fitting headphone.
Spec Summary
| Attribute | Value |
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| Best For | Home listening and music production, with wired over-ear sound isolation |
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| Audio Performance | Dynamic drivers, 16-ohm impedance, and a listed frequency response of 20,000 Hz |
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| Connectivity | Wired connection through a 6.35 mm (1/4-inch) audio jack; Bluetooth is not supported |
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| Design And Fit | Tan, large, round-earpiece over-ear headphones with binaural ear coupling and sound-isolating design |
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| Construction And Cable | Plastic enclosure with a padded rubber headband reinforced with steel, adjustable slide bars, and an 8-foot coiled cord |
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| Model Identifiers | Koss Pro4AA (model number: Pro4AA) |
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