Speaker 揚聲器 / Polk Audio / RTiA7
RTiA7

RTi A Series Speakers sound as great as they look! The perfect solution for a premium home theater or music system, these speakers will make you think you're in the movie or front row at the concert. RTi A speakers feature HUGE dynamic range- suitable for

Introduction

Black / Cherry

Specification

Driver Complements
Woofer 2 - 7" Diameter (17.78cm)
Polymer Composite with Rubber Surround 3 - 7" Diameter (17.78cm)
Polymer Composite with Rubber Surround
Mid/Woofer 2 - 6 1/2" Diameter (16.51cm)
Polymer/Mica Composite cone with rubber surround
Midrange 1 - 6 1/2" Diameter (16.51cm)
Polymer Composite Dynamic Balance with rubber surround 2 - 5 1/4" Diameter (13.34cm)
Polymer Composite Dynamic Balance with rubber surround
Tweeter 1 - 1" Diameter (2.54cm)
Silk Polymer Composite Dome 1 - 1" Diameter (2.54cm)
Silk Polymer Composite Dome 1 - 1" Diameter (2.54cm)
Silk Polymer Composite Dome
Electrical
Overall Frequency Response 30Hz-27kHz 20Hz-27kHz 18Hz-27kHz
Lower -3dB Limit 40Hz dB 35Hz dB 30Hz dB
Upper -3dB Limit 26kHz dB 26kHz dB 26kHz dB
Nominal Impedance 8 ohms 8 ohms 8 ohms
Recommended Amplifier Power 20-250 w/channel 20-300 w/channel 50-500 w/channel
Efficiency 90 dB 89 dB 90 dB
Crossover 2.2kHz, 12dB/Oct Low Pass, 18dB/Octave High Pass
Crossover
(mid-high array) 2.7kHz, 12dB/octave low and high pass. 125Hz 12dB/octave high pass 1.8kHz, 12dB/octave low and high pass. 120Hz 12dB/octave high pass
Crossover
(subwoofer) 125Hz, 12dB/octave low pass 120Hz, 12dB/octave low pass
Inputs 5-way binding posts Dual (bi-amp)5-way binding posts Dual (bi-amp)5-way binding posts
Dimensions
Cabinet Size 40 1/4" H x 8 7/16" W x 15 3/4" D
(102.23cm H x 21.43cm W x 40.01cm D) 42 1/4" H x 8 7/8" W x 17 7/8" D
(107.31cm H x 22.54cm W x 45.40cm D) 48 5/8" H x 8 7/8" W x 21 3/8" D
(123.51cm H x 22.54cm W x 54.29cm D)
Enclosure Type Vented with PowerPort and Arc Port
Enclosure Type
(mid-high array) Ported via ARC Port Sealed
Enclosure Type
(subwoofer) Ported via PowerPort Plus Ported via PowerPort Plus

Feature

The Mid-Weight Champ
Approaches the performance of the RTi A9 but in a slightly smaller, more economical package. RTi A7 has two 7" bass drivers and one 6.5" midrange drivers, but still features PowerPort Plus and solid cabinet construction just like its bigger brother.