More music with less power

With Ratio, efficiency is the key. Perfect for use with with amplified keypad systems, Russound Ratio High-Efficiency Speakers provide room-filling sound without extra amplification. Low-mass driver materials and state-of-the-art engineering allow these speakers to play louder than conventional speakers in home audio systems without sacrificing sound quality.

Ratio speakers save installation time, too. Unique spring clips make the job a breeze. Your installer can simply push the ceiling speakers into place without having to tighten any screws.

Designed for best performance with with amplified keypad systems, Ratio speakers make it possible to use such systems instead of higher-powered installations. This provides an economical alternative to more expensive multiroom systems.

Description
With its larger woofer, the RC81 in-ceiling speaker provides fuller bass than the RC61, making it suitable for larger rooms. Ideal for use with amplified keypad systems and low-wattage amplifiers, its high-efficiency design delivers ample volume with minimal power, whether you keep your music in the background or listen at party levels.

For your installer, the RC81 saves time and effort by using an innovative spring-clip mounting system.
Pure and simple, you get more music with Ratio.
Features
High efficiency Provides superior response and output from low-powered systems
Easy to install Unique spring-clip design saves time
Economical Maximum sound from inexpensive amplified keypad systems
Specifications
Type
Round 2-way in-ceiling speaker
Woofer 8 (20.3 cm) polypropylene cone
Tweeter 0.5 (1.3 cm) polyetherimide dome
Frequency response 71 Hz 20 kHz 3 dB
Frequency range 53 Hz 20 kHz 6/+3 dB
Sensitivity 92 dB SPL 2.83 V @ 1 m
Nominal impedance 8 ohms
Recommended amplifier power 20 watts RMS (20 watts maximum)
Grille Perforated steel
Frame diameter 11.3 (28.7 cm)
Cutout diameter 9.88 (25.1 cm)
Mounting depth 3.4 (8.6 cm)
Rough-in bracket SB-8TT (not included)
Weight 3.2 lb (1.5 kg)
Finish White (paintable)