Short answer: the Polk Audio Atrium 6, though neither ranks well in its class. It ranks #11 of 15 outdoor speakers by sound quality, rated 2.7/5, at $295. The Polk Audio Atrium 5 ranks #13, rated 2.6/5, at $229, $66 cheaper, a saving that is not big enough to make up the sound-quality gap. Both are rated below 3.0/5 among the 15 outdoor speakers, so if sound quality matters, look higher up that list instead.
Why pick the Polk Audio Atrium 6: The larger Atrium sibling of the measured Atrium 4, with a 5.25” woofer and a 1” aluminum dome tweeter in an all-weather cabinet with a Power Port for deeper bass, rated to 50Hz. The tradeoff: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Atrium 4, which had an uneven tonal balance.
What the Polk Audio Atrium 5 does well: A step up from the measured Atrium 4 in Polk’s all-weather outdoor range, with a 5” woofer and 0.75” tweeter in a weather-resistant cabinet with Polk’s Speed-Lock bracket for quick mounting. The tradeoff: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Atrium 4, which had an uneven tonal balance.
Buy the Polk Audio Atrium 6. It is rated higher for sound quality, and the $66 you would save on the Polk Audio Atrium 5 does not close the gap.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: Polk Audio Atrium 6 2.3 to 3.1; Polk Audio Atrium 5 2.2 to 3.0). Treat this verdict as provisional.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Polk Audio Atrium 6 | Polk Audio Atrium 5 | |
|---|---|---|
| Price | $295.00 per pair | $229.00 per pair |
| Ranked | #11 of 15 in Outdoor Speakers Estimated | #13 of 15 in Outdoor Speakers Estimated |
| Drivers | 1” aluminum dome tweeter, 5.25” woofer | 0.75” tweeter, 5” woofer |
| Frequency Response | 50Hz - 27kHz (manufacturer specified) | 60Hz - 25kHz (manufacturer specified) |
| Sensitivity | 90dB (manufacturer specified) | 90dB (manufacturer specified) |
| Impedance | 8 ohms nominal (manufacturer specified) | 8 ohms nominal (manufacturer specified) |
| Woofer Cabinet | ported | - |
| Dimensions | 11.7”H x 7.7”W x 8.9”D (297 x 195 x 225 mm) | 10.3”H x 6.9”W x 8.1”D (262 x 175 x 206 mm) |
| Weight | 5.3 lbs (2.4 kg) each | 4.6 lbs (2.1 kg) each |
| DIY Kit | No | No |
Related Speaker Comparisons
How Polk Audio Atrium 6 compares with other leading options:
- Polk Audio Atrium 6 vs Polk Audio Atrium 4
- Polk Audio Atrium 4 vs Polk Audio Atrium 5
- Polk Audio Atrium 4 vs JBL Control 25T
- RSL Outsider II vs OSD Audio AP650
- Revel M55XC vs Polk Audio Atrium 4
Prices on this page were last checked October 7, 2026 at 9:25 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Polk Audio Atrium 6: $295.00 per pair Estimated Amazon eBay
Same family: the Polk Audio Atrium 4 (smaller outdoor, ranked lower, rated 2.6/5) and the Polk Audio Atrium 5 (smaller outdoor, ranked lower, estimated 2.6/5).
Pros: The larger Atrium sibling of the measured Atrium 4, with a 5.25” woofer and a 1” aluminum dome tweeter in an all-weather cabinet with a Power Port for deeper bass, rated to 50Hz. Sensitivity is 90dB and Polk’s Speed-Lock bracket makes wall mounting quick.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Atrium 4, which had an uneven tonal balance. Like any outdoor speaker, bass thins out away from walls.
Full Polk Audio Atrium 6 review and specifications →
| DIY Kit | No |
|---|---|
| Dimensions | 11.7”H x 7.7”W x 8.9”D (297 x 195 x 225 mm) |
| Drivers | 1” aluminum dome tweeter, 5.25” woofer |
| Frequency Response | 50Hz - 27kHz (manufacturer specified) |
| Impedance | 8 ohms nominal (manufacturer specified) |
| Sensitivity | 90dB (manufacturer specified) |
| Weight | 5.3 lbs (2.4 kg) each |
| Woofer Cabinet | ported |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Polk Audio Atrium 5: $229.00 per pair Estimated Amazon eBay
Same family: the Polk Audio Atrium 4 (smaller outdoor, ranked higher, rated 2.6/5) and the Polk Audio Atrium 6 (larger outdoor, ranked higher, estimated 2.7/5).
Pros: A step up from the measured Atrium 4 in Polk’s all-weather outdoor range, with a 5” woofer and 0.75” tweeter in a weather-resistant cabinet with Polk’s Speed-Lock bracket for quick mounting. Rated to 60Hz with 90dB sensitivity, so it plays loud from a modest amplifier.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Atrium 4, which had an uneven tonal balance. Bass is limited outdoors without a wall or eave to reinforce it.
Full Polk Audio Atrium 5 review and specifications →
| DIY Kit | No |
|---|---|
| Dimensions | 10.3”H x 6.9”W x 8.1”D (262 x 175 x 206 mm) |
| Drivers | 0.75” tweeter, 5” woofer |
| Frequency Response | 60Hz - 25kHz (manufacturer specified) |
| Impedance | 8 ohms nominal (manufacturer specified) |
| Sensitivity | 90dB (manufacturer specified) |
| Weight | 4.6 lbs (2.1 kg) each |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons