Product Comparison: Polk Audio Atrium 4 vs Polk Audio Atrium 6

Advertiser Disclosure

This site is a free online resource that strives to offer helpful content and comparison features to its visitors. Please be advised that the operator of this site accepts advertising compensation from certain companies that appear on the site, and such compensation impacts the location and order in which the companies (and/or their products) are presented, and in some cases may also impact the scoring that is assigned to them. The scoring that appears on this site is determined by the site operator in its sole discretion, and should NOT be relied upon for accuracy purposes. In fact, Company/product listings on this page DO NOT imply endorsement by the site operator. Except as expressly set forth in our Terms of Use, all representations and warranties regarding the information presented on this page are disclaimed. The information which appears on this site is subject to change at any time. More info

General Specifications
Polk Audio
Polk Audio
Atrium 4
Atrium 6
About the Product
The Compact Atrium4 loudspeaker produces high fidelity sound quality anywhere you want great sound. It's small size makes it ideal for tight, out-of-way installations.
The Atrium6 really turns up the performance with true high fidelity sound quality anywhere you can run a cable. PowerPort® bass venting and Dynamic Balance® driver technologies, both Polk Audio exclusives, produce the kind of sonic performance you'd expect from an indoor system.
Key Specs
RMS Power
80 watts
10 watts
Number Of Speakers
What customers say about "Key Specs"
Polk Audio Atrium 4 Outdoor Speakers
  • Lots of sound for small speakers. Great quality too. Would definetly recommend to anyone. Great price. Easily powered by a 50W RMS amplifier.
  • 80 watts power handling plenty to spare in volume all you need is a decent receiver and you wont be disappointed
  • These speakers rock! Do not expect to get night club power, but the quality is great for normal level listening. the sound quality is amazing for such a small speakers. I love them!
  • Installed these on my boat with a Dual AMB600w 240 watt receiver and they can't handle the 60 watts going to them. Was pretty surprised considering their 80 watt rating.
  • Not as powerful as I had hoped for an outdoor space but quality is very good and they look great.
Polk Audio Atrium 6 Speakers - White
  • I should add that you should not expect these to sound like you have a subwoofer in your space. Don't expect in-your-face bass. But do expect a very well rounded sound across all music genres. I'd buy these again in a heartbeat.
  • Great speakers, provide solid base when mounted in a corner - much more than I would expect of a speaker system lacking a subwoofer.
  • They are larger than we had anticipated, but still fit in the space that we wanted to put them in. They are generally protected from the weather by our eaves, and so we haven't put them in any extreme conditions.
  • The most impressive feature of these speakers is the large sound field.
  • Pure sound with great base response. Love the look and strongly recommend for outside speakers as they handle the brutal Colorado foothills sun exposure. Easy to mount and connect.
Size & Weight
8.6 in
11.7 in
5.7 in
7.7 in
6.7 in
8.75 in
3.6 lb.
5.4 lb.
What customers say about "Size & Weight"
Polk Audio Atrium 4 Outdoor Speakers
  • They are the perfect size and weight for what I needed. They seem very solid and durable.
  • Great speaker for there size. Easy to mount. Overall very good deal.
  • These are a good size. I didn't want to spend the extra money on the bigger Atrium 5/6/8 and I haven't been disappointed. They fit great in the corners of my deck.
  • The sound quality is good and they have good weight, which typically indicates a quality speaker (big magnet).
  • Very easy to install and the construction appears sturdy
Polk Audio Atrium 6 Speakers - White
  • These are fairly heavy speakers, so this is really a nice factor when working off a ladder. The only thing I'd fault is it's not possible to use straight banana plugs as the housing does not have enough room to insert these in.
  • Speakers easily fit into the bracket, and are secure by hand with giant hand screws on each end.
  • It can be hard to get good speakers for outside because of the amount of space the sound needs to fill, but I think these do a great job especially at the price point.
  • The Atrium 6 speakers installed very quickly, without any fuss and sounded great from the get-go.
  • The mounting system works well to keep them close to the wall. Their design works well in corners.
Min. Frequency Response
75 Hz
50 Hz
Max. Frequency Response
25 kHz
27 kHz
8 ohms
8 ohms
89 dB
90 dB
Speed-Lock Mounting System for easy, safe one-handed installations even in difficult locations, Anodized Aluminum Tweeter Domes
All-weather certified and water-resistant, Engineered with Polk’s Dynamic Balance® technology
What customers say about "Audio"
Polk Audio Atrium 4 Outdoor Speakers
  • Theses speakers reproduce high and low frequencies very nicely. Bass is solid and not boomy.
  • Mounting bracket allows for vertical or horizontal mounting with easy angle adjustment thanks to solid screw on end caps.
  • The volume is excellent, the frequency range is quiet good...and they have no problem pushing all the volume we need to the pool area.
  • Good low frequency. Flexible installation and adjustable positions as advertised.
  • While the sound from these Polk's is good, I was really expecting more from the lows and highs based on the price of these speakers. I had read that the frequency range of these isn't that great, so I should have been better prepared.
  • These speakers despite the name are quite unimpressive. they sound muddy, and do not seem to have a full range.... no real low frequency or high frequency response.
Polk Audio Atrium 6 Speakers - White
  • Much better highs and lows than the 251s. You'll need to break in the speakers for 4-6 hours (to loosen up the voice coils) and once you do that, you'll find much better range than the 251s. Clearer sound, much less muddy than the Bose units
  • The Atrium 5 did not.....So, if you like deeper sound - purchase the Atrium 6. Great for late night jazz.
  • The clarity is absolutely amazing, I'm able to easily understand vocals without pumping up the volume so they don't interfere with conversations or aggravate the neighbors.
  • More than enough bass, clarity and accuracy for my application. Looking forward now to some deck weather to properly break them in.
  • The highs are not Tinny and the lows are rounded out and nice. They have also survived the heat and the ridiculous rain storms of Texas.
Warranty / Certifications
Manufacturer Warranty
2 year(s)
5 year(s)
Other Information

Other reviews