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Koss

Koss Pro4AA Stereophone

$114.99
$74.84 SAVE $40.15
53 availableas of 09/19/2026

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Should arrive by Wed, Sep 30 with free ground shipping

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

This full-size professional quality stereophone has long been the headphone of choice for broadcast and recording professionals whose careers demand reliable equipment and superior performance. The PRO4AA features dynamic elements for an exceptionally wide frequency response. Adjustable slide bars ensure a snug fit, also critical for hearing every note and keeping unwanted sounds out. It includes microphone mount hardware for complete versatility. Whether you are a sound professional or simply love music, the PRO4AA will deliver excellent isolation, accurate sound reproduction, and the excitement of a live performance to your recording.

Technical specifications

General Information

Manufacturer Koss Corporation
Manufacturer Part Number PRO4AA
Manufacturer Website Address http://www.koss.com
Brand Name Koss
Product Model Pro4AA
Product Name Pro4AA Stereophone
Product Type Headphone

Technical Information

Connectivity Technology Wired
Cable Length 10 ft
Sound Mode Stereo
Minimum Frequency Response 10 Hz
Maximum Frequency Response 25 kHz
Connector Plating Gold Plated

Earpiece

Earpiece Design Over-the-head
Earpiece Type Binaural

Interfaces/Ports

Host Interface Mini-phone (3.5mm)

Miscellaneous

Package Contents
  • Pro4AA Stereophone
  • 6.3 mm (¼") screw-on type adapter
Additional Information
  • Durable steel and rubber headband
  • Impedance: 250 ohms
  • Sensitivity: 95dB SPL/1mW
  • Distortion: <0.1%

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.