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Customer Service Hours of Operation: Monday-Friday, 9AM-6PM EST polkcs@polkaudio.com 4342 Polk Audio Customer Service 800-377-7655 (Outside USA & Canada: 410-358-3600)
SPECIFICATIONS
Atrium4 Atrium5 Atrium6
Driver Complement 4 1/2" (114mm) mineral filled 5" (127mm) mineral filled 5 1/4" (133mm) Dynamic Balance
Dynamic Balance
®
polymer cone, Dynamic Balance polymer cone, aerated polypropylene cone,
rubber surround, 3/4" (19mm) rubber surround, 3/4" (19mm) rubber surround, 1" (25mm)
anodized aluminum dome tweeter anodized aluminum dome tweeter anodized aluminum dome tweeter
w/ rubber surround and w/ rubber surround and w/ rubber surround and
neodymium motor structure neodymium motor structure neodymium motor structure
Frequency Response 75Hz-25kHz 60Hz-25kHz 50Hz-27kHz
Recommended Power 10-80W continuous 10-100W continuous 10-100W continuous
Impedance Compatible w/ 8 Ohm outputs Compatible w/ 8 Ohm outputs Compatible w/ 8 Ohm outputs
Efficiency (dB 1w/1m) 89dB 90dB 90dB
Available Finishes Black & White Black & White Black & White
Environmental ASTM D5894-UV Salt ASTM D5894-UV Salt ASTM D5894-UV Salt
Standards Fog, Mil Standard 810 Fog, Mil Standard 810 Fog, Mil Standard 810
Immersion, Mil-Std 883 Immersion, Mil-Std 883 Immersion, Mil-Std 883
Method 1009.8 for salt Method 1009.8 for salt Method 1009.8 for salt
and corrosion & and corrosion & and corrosion &
Polk Audio Certification Polk Audio Certification Polk Audio Certification
Cabinet material Mineral filled Mineral filled Mineral filled
polypropylene polypropylene polypropylene
Grille & Bracket powder coated powder coated powder coated
material aluminum aluminum aluminum
Hardware Brass or stainless steel Brass or stainless steel Brass or stainless steel
Terminals Gold plated 5-way Gold plated 5-way Gold plated 5-way
binding posts binding posts binding posts
Mounting Options 180° Speed-Lock
™
mounting 180° Speed-Lock mounting 180° Speed-Lock mounting
Dimensions 8 5/8" H x 5 11/16" W x 6 11/16" D 10 5/16" H x 6 3/4" W x 7 3/4" D 11 11/16" H x 7 11/16" W x 8 3/4" D
(w/ bracket & knobs) (21.9cm H x 14.4cm W x 17cm D) (26.2cm H x 17.1cm W x 19.7cm D) (29.7cm H x 19.5cm W x 22.2cm D)
Product Weight 3.6lbs / 1.63kg (each) 4.6lbs / 2.09kg (each) 5.4lbs / 2.45kg (each)
Shipping Weight 9.5lbs /4.1 kg (pair) 11.5lbs / 5.0kg (pair) 16lbs / 7.0k g (pair)
SPECIFICATIONS
Atrium7 Atrium8SDI
Driver Complement 6 1/2" (165mm) Dynamic Balance 6 1/2" (165mm) Dual Voice Coil
aerated polypropylene cone, Dynamic Balance aerated polypropylene
rubber surround, 1" (25mm) cone, rubber surround, Two 1" (25mm)
anodized aluminum dome tweeter anodized aluminum dome tweeter
w/ rubber surround and w/ rubber surround and
neodymium motor structure neodymium motor structure
Frequency Response 47Hz-27kHz 45Hz-27kHz
Recommended Power 10-125W continuous 10-125W x 2 continuous
Impedance Compatible w/ 8 Ohm outputs Compatible w/ 8 Ohm outputs
Efficiency (dB 1w/1m) 91dB 91dB
Available Finishes Black & White Black & White
Environmental ASTM D5894-UV Salt ASTM D5894-UV Salt
Standards Fog, Mil Standard 810 Fog, Mil Standard 810
Immersion, Mil-Std 883 Immersion, Mil-Std 883
Method 1009.8 for salt Method 1009.8 for salt
and corrosion & and corrosion &
Polk Audio Certification Polk Audio Certification
Cabinet material Mineral filled Mineral filled
polypropylene polypropylene
Grille & Bracket powder coated powder coated
material aluminum aluminum
Hardware Brass or stainless steel Brass or stainless steel
Terminals Gold plated 5-way Gold plated 5-way
binding posts binding posts
Mounting Options 180° Speed-Lock mounting 180° Speed-Lock mounting
Dimensions 12 7/8" H x 8 1/2" W x 9 3/16" D 12 7/8" H x 8 1/2" W x 9 3/16" D
(w/ bracket & knobs) (32.7cm H x 21.6cm W x 23.3cm D) (32.7cm H x 21.6cm W x 23.3cm D)
Product Weight 8lbs / 3.63kg (each) 9.7lbs / 4.4kg (each)
Shipping Weight 21.5lbs / 9.4kg (pair) 13.5lbs / 6.1kg (each)
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