Russound RC61 用户手册

下载
页码 12
2
INTRODUCTION
Product Description
Russound Ratio® High-Effi ciency Loudspeakers are 
designed to provide high acoustic output with low 
amplifi er power. This makes them perfectly suited for 
use with low- powered amplifi ed keypads and amplifi ed 
volume controls.
Low-mass driver materials and state-of-the-art engi-
neering allow these speakers to produce higher sound 
pressure levels than conventional speakers without 
sacrifi cing sound quality.
When ordinary speakers are used with low-powered 
amplifi ed keypads, they have limited output. This is 
because the speakers are designed to handle higher 
power levels from other types of amplifi ers. Because of 
their high effi ciency, Ratio speakers play more loudly 
than conventional speakers when used with amplifi ed 
keypads.
Ratio speakers are designed to reduce installation time. 
All models incorporate an innovative spring-clip mount-
ing feature that makes them easier to install. Also, the 
ceiling speakers have preinstalled grilles. These features 
allow the installer to simply connect the speaker cables 
and press the speakers into the ceiling for a quick 
installation.
Caution
Ratio speakers are for use only with amplifi ed 
keypads and volume controls or amplifi ers 
with a power output of up to 20 watts per 
channel. Do not use Ratio speakers with 
receivers or amplifi ers rated at more than 20 
watts per channel.
Spring clip
Spacer
5/8” (1.6 cm) ceiling
Mounting ring
Boss for seismic restraint screw
1/2” (1.3 cm) ceiling
3/4” (1.9 cm) ceiling
Bosses opposite the spring clips on ceiling speakers can be used to attach seismic restraints.
Spacers on the spring clips are factory set for a 5/8” (1.6 cm) ceiling or wall thickness.
The spring clip spacers can be inverted to accommodate a ceiling or wall thickness of 1/2” (1.3 cm)
 or removed for a 3/4” (1.9 cm) ceiling or wall, or when rough-in brackets are used.