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Koss Pro4AA Titanium comparison

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Product name	Koss Pro4AA Titanium	Koss PortaPro Headphones	Sennheiser HD280 Pro	Koss Pro3AA Titanium	Grado SR125
Price	$58.00 to $66.49	$28.53 to $38.00	$77.75 to $99.99	$43.45 to $53.95	$150.00
CNET editors' rating	3.5 stars Overall score: 7.3 (3.5 stars)	4.0 stars Overall score: 8.3 (4.0 stars)	4.0 stars Overall score: 8.2 (4.0 stars)	3.5 stars Overall score: 7.7 (3.5 stars)	4.0 stars Overall score: 8.3 (4.0 stars)
Average user rating	3.5 stars	4.5 stars	4.0 stars	3.0 stars	4.0 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.	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.	Delivering top-notch home-listening performance, the Grado SR125 will satisfy even the most demanding audiophile.
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Response Bandwidth	10 - 25000 Hz	15 - 25000 Hz	8 - 25000 Hz	15 - 20000 Hz	20 - 20000 Hz
Localization	English	Info unavailable	English	English	Info unavailable
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	Black	Info unavailable	Info unavailable
Connectivity Technology	Wired	Wired	Wired	Wired - None	Wired
Headphones Type	Headphones - Binaural	Headphones - Binaural	Headphones - Binaural	Headphones - Binaural	Headphones - Binaural
Product Type	Headphones - Wired	Headphones - Wired	Headphones - Wired	Headphones - Wired - None	Headphones - Wired
Recommended Use	Home audio system Professional audio system	Portable audio system	Home audio system Professional audio system	Home audio system	Info unavailable
Product Description	Koss PRO 4AA - Headphones	Koss PortaPro Headphones	Sennheiser HD 280 - Headphones	Koss PRO 3AA - Headphones	Grado Prestige SR 125 - Headphones
Manufacturer Warranty	Limited lifetime warranty	Limited lifetime warranty	2 years warranty	Limited lifetime warranty	Info unavailable
Remote Control	None	None	None	Info unavailable	None
Full specifications	Full specifications	Full specifications	Full specifications	Full specifications	Full specifications
Buying choices	Amazon.com $59.14 In stock: Yes J&R Music and Computer World $58.00 In stock: Yes Amazon.com Marketplace $66.49 In stock: Yes Prices from 3 CNET Certified stores	Dell Small Business $33.99 In stock: Yes Amazon.com $32.23 In stock: Yes Amazon.com Marketplace $28.53 In stock: Yes Prices from 3 CNET Certified stores	Beach Camera $99.00 In stock: Yes J&R Music and Computer World $99.99 In stock: Yes Buydig.com $99.00 In stock: Yes Prices from 8 CNET Certified stores	Amazon.com $43.45 In stock: Yes Amazon.com Marketplace $53.95 In stock: Yes Prices from 2 CNET Certified stores	6th Ave. $150.00 In stock: Yes Price from 1 CNET Certified store
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