CNET editors' review
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CNET editors' rating:
stars
Very good
Detailed editors' rating
- Reviewed on: 03/04/2005
- Released on: 03/30/2004
Like the other speakers in the Beta line, the Beta 20 employs Infinity's patented Ceramic Metal Matrix Diaphragm (CMMD) speaker-driver technology originally developed for the company's high-end Prelude MTS models. CMMD drivers are said to be lighter and stronger than conventional paper, plastic, or metal drivers. According to Infinity, CMMD drivers produce lower levels of distortion for a more transparent and detailed sound.
The Beta Series' tweeters have recently been revised to extend their ultra-high-frequency response out to 40KHz to enhance their performance with SACD and DVD-Audio disc formats. The tweeter is mounted in a special waveguide to ensure improved high-frequency dispersion throughout the listening room. We also noted that the engineers positioned the tweeter unusually close to the midrange driver, and that close proximity further improves the speaker's sound quality and imaging precision.
As bookshelf models go, the Beta 20 is a big speaker, measuring 13.75 inches high, 8.8 inches wide, and 13 inches deep and weighing a solid 20.7 pounds. (Infinity doesn't provide any real wall-mounting options, but those interested in such a design should opt for a smaller speaker anyway.) It features a 6.5-inch woofer and a 1-inch dome tweeter, plus a set of all-metal connectors around back. Like the rest of the Beta line, it's available in black or cherry finish.
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