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| Product | Polk Audio I-Sonic ES2 | Boston Acoustics Duo-i plus | Cambridge SoundWorks i525 | Sony RDP-XF100iP | Altec Lansing Mix BoomBox iMT810 |
| Price | Pricing is currently unavailable. | Pricing is currently unavailable. | Pricing is currently unavailable. | $126.00 to $307.25 | $279.99 |
| CNET editors' rating | 3.5 stars | 3.5 stars | 3.5 stars | 3.5 stars | 4 stars |
| Average user rating | 3 stars | 3.5 stars | 2.5 stars | 3 stars | 5 stars |
| Release date | May 1, 2008 | September 15, 2009 | June 15, 2010 | October 1, 2010 | Info unavailable |
| Bottom line | The Polk Audio I-Sonic ES2 pairs the same excellent sound as its predecessor with an improved design--but we would've liked more features at this price. | The Boston Acoustics Duo-i Plus is a great-sounding AM/FM/iPod clock radio with plenty of customization and connectivity options. | Though its $150 price tag places it among the more-expensive devices on the market, its great sound, feature set, and comprehensive
iPod control make the i525 a worthy AM/FM iPod alarm clock radio. | The Sony RDP-XF100iP is a versatile, powerful
iPod/iPhone speaker for around the home that surprises with its deep low-end sound. | The Altec Lansing BoomBox iMT810's winning combination of good performance, lots of oomph, and portability makes it one of the best boom-box-style bass-heavy speaker options you can buy. |
| Dimensions (WxDxH) | 14.5 in x 9.8 in x 4.8 in | 12.9 in x 8 in x 5.5 in | 14.6 in x 8.5 in x 5.9 in | 14 in x 4.7 in x 6.4 in | Info unavailable |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices | Pricing is currently unavailable. | Pricing is currently unavailable. | Pricing is currently unavailable. |
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Polk Audio I-Sonic ES2 compare
