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| Product | Koss ProDJ100 (Black) | Audio-Technica ATH-M50 | Koss PortaPro (with Case)  | Audio-Technica ATH-M35 | Audio-Technica ATH-M30 |
| Price | $53.88 to $69.00 | $159.00 to $159.99 | $39.99 to $59.99 | $51.99 to $199.00 | $44.99 to $131.06 |
| CNET editors' rating | 3.5 stars | 4 stars | 4 stars | 4 stars | 4 stars |
| Average user rating | 4.5 stars | 4.5 stars | 4 stars | 4.5 stars | 4.5 stars |
| Release date | Info unavailable | Info unavailable | January 1, 1984 | Info unavailable | Info unavailable |
| Bottom line | While we can't see many DJs using them, the Koss PRO DJ100s are a decent set of headphones that will expose the detail in your music. | The Audio-Technica ATH-M50 Professional Studio Monitor Headphones are among the best available for less than $200, offering excellent sound and build quality. | 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. | While they're not in the same league as the step-up ATH-M50, the Audio-Technica ATH-M35 costs a lot less and offers impressive performance and decent build quality for the money -- plus it has the fold-up element that's missing from the ATH-M30. | While they're not in the same league as the step-up ATH-M50 headphones, the Audio-Technica ATH-M30 set costs a lot less and offers impressive performance and decent build quality for the money. |
| Product Type | - Cable | Headphones - Wired | Headphones - Wired | Headphones - Wired | - Wired |
| Connectivity Technology | Cable | Wired | Wired | Wired | Wired |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Audio Specifications | Frequency Response 10 - 25000 Hz | Frequency Response 15 - 28000 Hz - Sensitivity 99 dB - Impedance 38 Ohm | Frequency Response 15 - 25000 Hz - Sensitivity 101 dB/mW - Impedance 60 Ohm | Frequency Response 20 - 20000 Hz - Sensitivity 100 dB - Impedance 65 Ohm | Frequency Response 20 - 20000 Hz - Sensitivity 100 dB/mW - Impedance 65 Ohm |
| Product Description | Info unavailable | Audio-Technica ATH M50 - Headphones | Koss PortaPro - Headphones | Audio-Technica ATH M35 - Headphones | Audio-Technica ATH M30 |
| Packaged Quantity | Info unavailable | 1 | 1 | 1 | 1 |
| Headphones Type | Info unavailable | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural | Binaural |
| Remote Control | Info unavailable | None | None | None | None |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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Koss ProDJ100 compare (Black)
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