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Koss Pro4AA Titanium comparison

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Product name	Koss Pro4AA Titanium	Koss PortaPro Headphones	Grado SR60	Sennheiser HD280 Pro	Koss Pro3AA Titanium
Price	$60.15	$27.99 to $49.99	Check Prices	$99.95 to $99.99	$53.95
CNET editors' rating	3.5 stars Overall score: 7.3 (3.5 stars)	4.0 stars Overall score: 8.3 (4.0 stars)	3.5 stars Overall score: 7.4 (3.5 stars)	4.0 stars Overall score: 8.2 (4.0 stars)	3.5 stars Overall score: 7.7 (3.5 stars)
Average user rating	3.5 stars	4.0 stars	4.0 stars	4.0 stars	3.0 stars
Release date	May 15, 2003	January 01, 1984		November 01, 2001	May 15, 2003
The Bottom Line	These macho headphones can rock out like pro models.	Koss hit a home run with the PortaPros. Love or hate the design, there's no denying the sound quality here: they're the ideal companion for mobile audiophiles and home theater enthusiasts.	Grado's cheapest headphones belt out big sound with pint-size portable audio devices.	Sennheiser's versatile headphones sound great on DVDs and all kinds of music.	This affordable model offers the detail and transparency of expensive high-end speakers.
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Response Bandwidth	10 - 25000 Hz	15 - 25000 Hz	20 - 20000 Hz	8 - 25000 Hz	15 - 20000 Hz
Localization	English	Info unavailable	Info unavailable	English	English
Headphones Form Factor	Ear-cup	Semi-open	Ear-cup	Ear-cup	Ear-cup
Sound Output Mode	Stereo	Stereo	Stereo	Stereo	Stereo
Color	Info unavailable	Info unavailable	Info unavailable	Black	Info unavailable
Connectivity Technology	Wired	Wired	Wired	Wired	Wired - None
Headphones Type	Headphones - Binaural	Headphones - Binaural	Headphones - Binaural	Headphones - Binaural	Headphones - Binaural
Product Type	Headphones - Wired	Headphones - Wired	Headphones - Wired	Headphones - Wired	Headphones - Wired - None
Recommended Use	Home audio system Professional audio system	Portable audio system	Info unavailable	Home audio system Professional audio system	Home audio system
Product Description	Koss PRO 4AA - Headphones	Koss PortaPro Headphones	Grado Prestige SR 60 - Headphones	Sennheiser HD 280 - Headphones	Koss PRO 3AA - Headphones
Manufacturer Warranty	Limited lifetime warranty	Limited lifetime warranty	Info unavailable	2 years warranty	Limited lifetime warranty
Remote Control	None	None	None	None	Info unavailable
Full specifications	Full specifications	Full specifications	Full specifications	Full specifications	Full specifications
Buying choices	Amazon.com $60.15 In stock: Yes Price from 1 CNET Certified store	Amazon.com $30.72 In stock: Yes J&R Music and Computer World $39.99 In stock: Yes TigerDirect.com $39.99 In stock: Yes Prices from 5 CNET Certified stores	E-mail me when this product is available	Newegg.com $99.95 In stock: Yes Crutchfield $99.99 In stock: Preorder Amazon.com Marketplace $99.95 In stock: Yes Prices from 9 CNET Certified stores	Amazon.com Marketplace $53.95 In stock: Yes Price from 1 CNET Certified store
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