![]() ![]() The IS4 C is transformer-coupled, with 48W, 24W, 12W, 6W, 3W, 1.5W, 0.5W taps and 5-Ohm bypass that are selectable from the speaker’s enclosure. Connection is made via a barrier strip that is covered with a steel plate that features a connection point for 1/2” conduit. The IS4 C frame is constructed from extruded aluminum. ![]() The IS4 C features wide dispersion (170° conical) allowing larger areas to be adequately covered by fewer speakers.Īn integrated, steel enclosure provides up to 20dB of noise reduction on the back of the speaker. Invisible speakers are an ultimate expression of architectural audio,delivering the ultimate experience of sound without distracting with the. enriched by the cryogenic method enrichment extent is 2 - 10. The IS4 C incorporates a polypropylene diaphragm that provides distinct woofer, midrange and tweeter radiation areas to ensure superior-quality sound in foreground music, public address sound masking and paging applications. The IS2 is designed for tight installations or very small spaces yet delivers sound that is only bested by the IS4. The IS2 is designed for tight installations or very small spaces yet delivers sound that is only bested by the IS4. rsonance absorption can be detected if the latter is as small as 10 10 of the incident. The IS4 C is an extended bandwidth, wide dispersion loudspeaker designed for ceiling or wall mounting in commercial/professional installations in airports, hotels, boardrooms, cruise ships, casinos, convention centers, restaurants, offices, houses of worship and retail stores. dis- sonance which results from allowing the passage to stand as it is.'2 But there are many other passages where linear constraints are not present. The IS4 C features all the industry standard tap settings as well as an 5-Ohm bypass. The IS4 C is for any commercial or residential settings where a 70 or 100 volt system is being used.
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