

Description
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.
Quick Glance
Headphone Type: Over-the-head
Interface Type: Mini-phone
Headphone Type
Headphone Type: Over-the-head
Wireless Transmitter Range: 10 ft
Interface Connection: Mini-phone
Performance
Overall Min Frequency Response: 10 Hz
Overall Max Frequency Response: 25 kHz
Physical Attributes
Weight: 1.90
Warranty
Warranty Information: http://www.koss.com/koss/kossweb.nsf/HomeCatalog
More Info
URL: Manufacturer Link
General
Class: Audio Visual Accessory
Category: Speakers
Additional Specifications
Frequency Band: Durable steel and rubber headband Impedance: 250 ohms Sensitivity: 95dB SPL/1mW Distortion: <0.1%
Plating: Gold Plated
Strengths: Not quite sure about this one. They do seem rather heavy though, so you might be able to bludgeon someone to death with them. + Comfortable pads + Durable casing
Weakness: - Muffled sound - Weight - Short cable - Awful for listening to classical music and such.
I purchased these headphones along with Philips HP890 and Sony MDR-CD780, and I must say that they perform rather disappointing. The sound is muffled, as if I'm wearing earplugs, and the headphones show great trouble distinguishing between dull and bright tones. I find the both the HP890's and the CD780's to be far better at delivering crisp, clear sound. Still, they offer decent overall sound,...
The Koss PRO4AA is a full-sized professional-grade stereophone which, according to Koss, is the headphone of choice by broadcast and recording professionals. The stereophone features dynamic elements for a wider-than-average frequency response and a titanium coating on its diaphragms to provide reinforcement, reduce distortion, and improve sound performance. It is designed with closed leatherette...
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Koss Pro4AA Stereophone
Strengths: Great sound, good response.
Weakness: a little heavy, but not uncomfortable to wear.
I have owned a set of these for many years, have used these headphones extensively and have had no problem with them. They carry a lifetime repair warranty in case of problems. Their sound is as good as it gets, better than any other headphones I have owned.