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| Price | $799.00 to $900.00 | $349.95 to $450.00 | $219.00 to $299.99 | $1,569.00 | $95.00 to $137.97 |
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| Release date | August 15, 2007 | July 21, 2008 | July 15, 2004 | ||
| The Bottom Line | KEF's HTB2 subwoofer combines sleek style and high performance. | Flexible configuration, a full list of features, and solid bass performance gives the Polk Audio DSW Pro 400 a leg up on similar-size subwoofers. | The able Polk Audio PSW111 subwoofer delivers seamless bass despite its compact size. | Anchored by its minitower speakers, the Aperion Intimus 4T Hybrid SD is an exceptional surround speaker system that ably combines good looks and superior sound. | Polk's baby subwoofer belts out tight home-theater bass and sounds sweet with music, too. |
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| Features | |||||
| Enclosure Color | High-gloss silver | Black | Black | Medium cherry | Black |
| System Components | 1 x Subwoofer | Info unavailable | Info unavailable | Subwoofer 5 speakers | Info unavailable |
| Audio System Max Output Power | 250 Watt | Info unavailable | Info unavailable | Info unavailable | Info unavailable |
| Audio Amplifier | Integrated | Integrated | Integrated | Integrated | Integrated |
| Dimensions (WxDxH) | 17.3 in x 7.7 in x 15.4 in | 13.7 in x 13.7 in x 14.6 in | 11 in x 13 in x 12.1 in | Info unavailable | 14 in x 16.1 in x 14.4 in |
| Battery | None | None | Info unavailable | Info unavailable | Info unavailable |
| Remote Control | Info unavailable | Remote control - Infrared | Info unavailable | Remote control - Infrared | Info unavailable |
| Speaker System Details | Subwoofer - 30 - 250 Hz | Subwoofer - 180 Watt - 25 - 160 Hz | Subwoofer - 150 Watt - 38 - 250 Hz | 2 x Right/left channel speaker - 55 - 20000 Hz - 6 Ohm 2 x Right/left rear channel speaker - 120 - 20000 Hz - 8 Ohm 1 x Center channel speaker - 80 - 20000 Hz - 8 Ohm 1 x Subwoofer - 150 Watt - 35 - 180 Hz | Subwoofer - 50 Watt - 35 - 200 Hz |
| Connectivity Technology | Wired | Wired | Wired | Wired | Wired |
| Speaker Type | Active | Active | Active | Active subwoofer, passive satellites | Active |
| Weight | 24.9 lbs | 30 lbs | Info unavailable | Info unavailable | 26 lbs |
| Manufacturer Warranty | Info unavailable | 5 years warranty | 5 years warranty | 10 years warranty | 5 years warranty |
| Product Description | KEF HTB2 - Subwoofer | Polk Audio DSW PRO 400 - Subwoofer | Polk Audio PSW 111 - Subwoofer | Aperion INTIMUS 4T Hybrid SD - Home theater speaker system | Polk Audio PSW 10 - Subwoofer |
| Max (RMS) Output Power | 250 Watt | 360 Watt | 300 Watt | Info unavailable | 100 Watt |
| Nominal (RMS) Output Power | Info unavailable | 180 Watt | 150 Watt | Info unavailable | 50 Watt |
| Response Bandwidth | 30 - 250 Hz | 25 - 160 Hz | 38 - 250 Hz | Info unavailable | 35 - 200 Hz |
| Power | Info unavailable | Info unavailable | Info unavailable | AC 120/230 V | Info unavailable |
| Product Type | Subwoofer | Subwoofer | Subwoofer | 5.1-channel Home theater speaker system | Monitor Subwoofer |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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