introduction
Congratulations on the purchase of your new 230R sound field receiver! With proper care and
use it will become one of your most valuable classroom tools for many years. Students will
be able to consistently and easily understand what the teacher is saying, regardless of
his/her location in the classroom. Teachers can now speak all day in their normal voice
without having to raise their voice to get their students’ attention.
Numerous studies show that classrooms using sound field enjoy better student comprehen-
sion, increased student participation, better grades and fewer behavioral referrals.
Read this manual carefully to become familiar with your receiver and to get the most out of
its many features and options.
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4500 230R Multi-Freq User Guide 9/21/04 12:44 PM Page 7