Introduction
The Koss Pro4AA Studio Quality Over-Ear Headphones are designed to deliver professional-grade audio monitoring with exceptional clarity and fidelity. Originally introduced in 1970, these headphones set the standard for full-size professional audio, combining legendary sound performance with an iconic retro design. They are built for durability and provide superior noise isolation, making them ideal for studio use, critical listening, and immersive audio experiences.
Image: Front view of the Koss Pro4AA Studio Quality Over-Ear Headphones, showcasing their beige earcups and padded headband.
Key Features
- Legendary Sound: The first dynamic headphones to deliver true full frequency and high fidelity performance.
- Superior Noise Isolation: Over-ear design provides effective isolation from external noise, enhancing audio clarity.
- High Fidelity Audio: Features 250 ohms impedance for precise audio reproduction across a wide frequency range of 10-25,000 Hz.
- Iconic Retro Design: Recognizable full-size construction with a classic aesthetic.
- Durable Construction: Built with steel and a generously padded rubber headband for long-lasting use.
- Coiled Cord: Equipped with a compact 8 ft coiled cord and a 6.3mm (1/4 inch) plug for flexible movement and professional connectivity.
Setup
Setting up your Koss Pro4AA headphones is straightforward. Follow these steps to begin your listening experience:
- Unpack: Carefully remove the headphones and any included accessories from their packaging.
- Inspect: Check the headphones for any visible damage.
- Connect: Locate the 6.3mm (1/4 inch) plug on the coiled cord. Insert this plug firmly into the corresponding audio output jack of your audio source (e.g., amplifier, audio interface, mixing console). If your device uses a smaller 3.5mm jack, use a compatible adapter (not included unless specified in packaging).
- Adjust Fit: Place the headphones over your ears. Adjust the slide bars on the headband to ensure a snug and comfortable fit. The generously padded headband and ear cushions are designed for extended listening sessions.
Image: The Koss Pro4AA headphones with their distinctive coiled audio cable, ready for connection to an audio device.
Operating Instructions
Once connected, operating your Koss Pro4AA headphones is simple:
- Power On Audio Source: Ensure your audio source (amplifier, receiver, etc.) is powered on and configured to output audio through the headphone jack.
- Volume Control: Adjust the volume level directly on your audio source. The Pro4AA headphones do not feature inline volume controls. Start with a low volume and gradually increase it to a comfortable listening level.
- Critical Listening: These headphones are designed for accurate sound reproduction. For critical listening or monitoring, ensure your audio source provides a clean, uncolored signal.
- DJ-Style Functionality: The robust design and superior noise isolation make these headphones suitable for DJ monitoring. The earcups can be swiveled for single-ear monitoring if needed.
Image: Two pairs of Koss Pro4AA headphones displayed on a stand beside a turntable, illustrating their use in a listening setup.
Maintenance
Proper care will ensure the longevity and performance of your Koss Pro4AA headphones:
- Cleaning: Use a soft, dry cloth to wipe down the earcups and headband. Avoid using harsh chemicals or abrasive cleaners.
- Storage: When not in use, store the headphones in a clean, dry place, away from extreme temperatures and direct sunlight. Avoid tangling the coiled cord.
- Ear Cushions: The ear cushions are designed for comfort and noise isolation. Over time, they may show signs of wear. Replacement ear cushions can be purchased from authorized Koss retailers or the Koss website.
- Cable Care: While the coiled cord is durable, avoid excessive pulling or sharp bends at the connection points to prevent internal wire damage.
Troubleshooting
If you encounter issues with your Koss Pro4AA headphones, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound |
|
|
| Distorted Sound |
|
|
| Uncomfortable Fit |
|
|
Specifications
| Feature | Detail |
|---|---|
| Model Name | Pro4AA |
| Connectivity Technology | Wired |
| Headphones Jack | 6.35 mm Jack |
| Frequency Range | 10 Hz - 25,000 Hz |
| Impedance | 250 Ohms |
| Noise Control | Sound Isolation |
| Ear Placement | Over Ear |
| Form Factor | Over Ear |
| Cable Length | 8 ft (coiled) |
| Item Weight | 1.85 Pounds |
| Product Dimensions | 9.45 x 9.45 x 4.09 inches |
| Included Components | Headphone, Adapter |
Official Product Video
Video: An official product video showcasing the Koss Pro4AA Studio Over-Ear Headphones, highlighting their features and design.
Warranty and Support
Koss stands behind the quality of its products. The Koss Pro4AA Studio Quality Over-Ear Headphones are covered under the Koss Stereophones Limited Lifetime Warranty. This warranty ensures that your headphones will be free from defects in material and workmanship for the lifetime of the product.
For warranty claims, technical support, or to purchase replacement parts (such as ear cushions), please visit the official Koss website or contact their customer service department. You can also find more information and products at the Koss Store on Amazon.
