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| Product | Grado RS-2 Reference Series | Sennheiser HD 650 | Grado PS1000 | Audio-Technica ATH-M50 | Sennheiser HD 598 |
| Price | $495.00 | $499.95 to $499.99 | $1,695.00 | $117.71 to $159.99 | $229.95 to $249.99 |
| CNET editors' rating | 4 stars | 4 stars | 4.5 stars | 4 stars | 4 stars |
| Average user rating | 4.5 stars | 4 stars | 4.5 stars | 4.5 stars | 4 stars |
| Release date | Info unavailable | December 5, 2003 | August 15, 2009 | Info unavailable | Info unavailable |
| Bottom line | Grado's RS-2 Reference Series headphones are strong contenders for world's best sound. | The formidable Sennheiser HD 650 headphones are fit for a king--and have a price tag to prove it. | They may cost as much as a big-screen TV, but the PS1000s are simply the best-sounding, most comfortable, and best-looking Grado headphones we've ever tested. | The Audio-Technica ATH-M50 Professional Studio Monitor Headphones are among the best available for less than $200, offering excellent sound and build quality. | The new HD 598's "wow" styling updates the classic Sennheiser look, and the sound has more detail and higher resolution than previous models. We recommend these cans to anyone looking for a pair of headphones with precision sound quality and a wide-open soundstage. |
| Product Description | Grado Reference RS 2 | Sennheiser HD 650 - Headphones | Grado Professional Series PS1000 | Audio-Technica ATH M50 - Headphones | Sennheiser HD 598 - Headphones |
| Packaged Quantity | 1 | 1 | 1 | 1 | 1 |
| Product Type | - Wired | Headphones - Wired | - Wired | Headphones - Wired | Headphones - Wired |
| Headphones Type | Binaural | Headphones - Binaural | Binaural | Headphones - Binaural | Headphones - Binaural |
| Connectivity Technology | Wired | Wired | Wired | Wired | Wired |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Audio Specifications | Frequency Response 14 - 28000 Hz - Sensitivity 98 dB/mW - Impedance 32 Ohm | Frequency Response 10 - 39500 Hz - Sensitivity 103 dB - Impedance 300 Ohm | Frequency Response 5 - 50000 Hz - Sensitivity 98 dB/mW - Impedance 32 Ohm | Frequency Response 15 - 28000 Hz - Sensitivity 99 dB - Impedance 38 Ohm | Frequency Response 12 - 38500 Hz - Sensitivity 112 dB - Impedance 50 Ohm |
| Remote Control | None | None | Info unavailable | None | None |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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Grado RS-2 Reference Series compare
