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Polk Audio Atrium Sub100

Outdoor passive subwoofer (Terracotta)

Item # 107ASB100T

It's the perfect way to add backyard bass to an outdoor system based around Atrim Sat300 satellite speakers.

It's the perfect way to add backyard bass to an outdoor system based around Atrim Sat300 satellite speakers.

Item # 107ASB100T

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C$549.99 each

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About the Polk Audio Atrium Sub100

Add powerful bass to your backyard Polk system

Don't sacrifice bass just because you're grilling or chilling in the backyard. The highly specialized Sub100 is a passive subwoofer that works only with Polk Audio's matching Atrium Sat300 outdoor satellite speakers (sold separately) to deliver full, rich sound. It houses a dual-voice-coil 10" woofer that's marine-rated for full-time outdoor use and handles up to 200 watts of power. The sub is paintable to match your patio decor, and you can even use it as a handy end-table to set your plate on.

Add powerful bass to your backyard Polk system

Don't sacrifice bass just because you're grilling or chilling in the backyard. The highly specialized Sub100 is a passive subwoofer that works only with Polk Audio's matching Atrium Sat300 outdoor satellite speakers (sold separately) to deliver full, rich sound. It houses a dual-voice-coil 10" woofer that's marine-rated for full-time outdoor use and handles up to 200 watts of power. The sub is paintable to match your patio decor, and you can even use it as a handy end-table to set your plate on.

Polk Audio Atrium Sub100

The Polk Audio Atrium Sub100 is a powerful subwoofer that looks good and doubles as outdoor furniture for your patio.

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Product highlights:

  • designed specifically to complement Polk Atrium Sat300 outdoor speakers (sold separately)
  • 10" down-firing composite cone subwoofer
  • marine-certified weatherproof for outdoor use
  • power handling: 200 watts
  • dual 2" voice coils produce bass from both stereo channels
  • nominal impedance: 8 ohms
  • frequency response: 50-110 Hz (±3dB)
  • sensitivity: 88 dB
  • eye-bolt security anchor and anti-theft screw-down points
  • 4-conductor direct burial pigtail cable
  • paintable to match your decor
  • 16" diameter x 11"H
  • weight: 16 lbs.
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # AM4385-A
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What's in the box:

  • One outdoor subwoofer (w/attached 39" speaker wire)
  • Waterproof junction box (bag w/ six 10mm screws inside junction box)
  • 8 Wire-nuts (4 waterproof / 4 standard)
  • Owner's manual
  • Warranty registration sheet

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Fullerton

Martin from Fullerton on 6/26/2019

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Let me start with the fact that I'm using multiple Polk Audio speakers and I'm happy with all of them. I'm using MC60 / 80, RT-90 around the house. So I bought this sub to complement my outdoor speakers. They are pretty decent but missing the "punsh" at the very low end. I received the first Sub100, connected it to a full range amplifier as advertised and it sounded horrible. The bass was there but all higher frequencies sounded really bad. So disabled the amplifier for the wall speaker and was surprised that I could still hear "everything", it just sounded really bad. Measuring shows that frequencies up to 8kHz are still played by the Sub100, just with lower loudness, so that the complete sound is off. After talking to Polk support I decided to replace the Sub because the support confirmed that with this behavior the crossover must be broken. Today I received the replacement. Also this Sub100 plays everything up to 8kHz. After another long conversation with Polk Audio support they told me that the Sub100 is designed to be used with the Sat300 and not as stand alone and that is why it is supposed to play also the higher frequencies to some extend. The only possibility would be to use an additional crossover / low pass filter. So this is more a warning because I know how hard it is to find an outdoor subwoofer: Do not buy this product if you are planning on adding bass to your existing outdoor speakers. It will add bass but also make the overall sound horrible!

Pros: One of the few outdoor rated subwoofers available

Cons: Not usable, will play higher frequencies and make the overall sound really bad.

Crutchfield response on 7/10/2019
Thanks for your review. Polk has indeed designed this subwoofer specifically to complement their Atrium Sat300 satellite speakers. Based on your feedback, we've tweaked our presentation to ensure that is clear.

1 of 1 found this helpful

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Pros:

Cons:

Crutchfield response

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More details on the Polk Audio Atrium Sub100

Stacey B.

Product Research

Features

Overview: The Polk Atrium Sub100 delivers heavy-duty bass performance and all-weather durability with indoor level bass performance. Designed for outdoor use, the Sub100 passive subwoofer features a 10" downward firing subwoofer in a weatherproof sealed enclosure that's ideal for patios, walkways, pool areas, parks, and other outdoor venues. The Atrium Sub100 is a perfect match for the Polk Atrium Sat300 satellite speakers for a 3-way system.

Driver: The Sub100 features a 10" long-throw Dynamic Balance driver for deeper, cleaner bass while eliminating driver distortion. It's dual 2" voice-coils (8Ω each) include separate wire inputs for each, allowing the sub to be driven from a stereo amplifier (sold separately). The downward-firing sub can handle up to 200 watts of power and is protected by a weather-proof aluminum grill.

Enclosure: The 10" subwoofer driver is housed in a molded and sealed resin enclosure that's acoustically optimized and carries an IPX66 weather-proof rating, giving it year-round outdoor performance. The color-impregnated resin housing will never fade and is designed to naturally blend with the outdoor environment. It can be painted to match the surroundings and can even be used as a plant stand or pedestal table. The underside of the Sub100 features 4 screw-down keyhole slots and an eye-bolt security anchor for added stability and security.

Crossover: The Sub100 includes a built-in high performance low-pass crossover at 150 Hz, allowing the sub to be powered from a full-range amplifier (sold separately).

Junction Box: Included with the Sub100 is a waterproof junction box for connecting other outdoor speakers along with the subwoofer. The junction box has an IP68 waterproof rating and is approved for in-ground use.

Wiring: Connection to the subwoofer is done through a 39" 4-conductor set of wires that's rated for direct burial. Four waterproof wire-nuts are included for in-ground connections. The sub's bare ended wires are color coded and labeled:

  • White: L+
  • Green: L-
  • Red: R+
  • Black: R-

Specifications:

  • Driver: 10" Long-throw Dynamic Balance, dual voice-coil
  • Recommended Power: 10 watts - 200 watts
  • Nominal Impedance: 8Ω (each voice-coil)
  • Sensitivity (1W @ 1M): 88 dB
  • Frequency Response (-3 dB): 50 Hz - 110 Hz
  •  Low-Pass Crossover (internal): 150 Hz
  • Dimensions: Diameter - 17.0", Height - 11.0"
  • Net Weight: 16.75 lbs.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
On the advice of a tech chat with a Crutchfield rep. [ John  Jun 06, 2019 ]

1 question already asked

Q
How would I connect this to my Onkyo TX-NR575 7.2 channel receiver? Can it plug into one of the subwoofer pre-out ?
[ Justin  Apr 27, 2019 ]
1 answer
A
This subwoofer does not have an amp built into it which means it cannot plug directly into the subwoofer pre-out on your Onkyo. However, you could get an amp to power this subwoofer and connect that amp to the pre-out. Or you could use a couple channels on the receiver to power the subwoofer. I recommend contacting an advisor on 1-800-324-9695 to discuss your setup and goals to get a personal recommendation on how to run it My Bio: https://www.crutchfield.com/bio/Paul
[ Paul  May 06, 2019 ]  Staff

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