• Koss Pro4AA Stereophone

Shipping Information

The shipping process is fully robotic and orders are normally pulled and shipped quickly in 7 different warehouses across the US and then dropped in sealed USPS, UPS and FedEx containers for pick-up on the next business day. High volume or backordered items may have additional shipping delays. Once pulled, orders cannot be stopped, however you can return orders for refund unopened if you have changed your mind. Tracking normally is sent / updated within 48 hours of pick-up. Delivery is normally 3-10 business days after leaving the warehouse, however carrier delays may occur. Shipping may take longer in rural areas, due to carrier delay, weather or acts of God. Weekends and Holidays do not count as business days and have no pickup, movement or delivery.

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Koss Pro4AA Stereophone

MSRP: $99.99
Sale: $86.11
Your Savings: $13.88


In Stock

Koss Pro4AA Stereophone MFG: Koss
UPC: 021299102725

  • Wired
  • 10 Hz 25 kHz
  • Gold Plated Connector
  • Binaural
  • 10 ft Cable

* ground shipping normally takes 3-10 business days, depending on destination

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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.

Tech Specs

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 TechnologyWired
Cable Length10 ft
Sound ModeStereo
Minimum Frequency Response10 Hz
Maximum Frequency Response25 kHz
Connector PlatingGold Plated
Earpiece DesignOver-the-head
Earpiece TypeBinaural
Host InterfaceMini-phone (3.5mm)
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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