Product Search

    Secure Checkout
    Your Shopping Cart Is Empty

    Secure Checkout

    SKU: BOM4.1.2

    OSD BOM4.1.2 8" Wireless BT Outdoor Powered Subwoofer, Built in Amp w/ 4x 60W Speaker Outputs

    Purchase OSD BOM4.1.2 Wireless BT 8" Outdoor Powered Subwoofer, Built in Amp 4x 60W Speaker Outputs
    • Outdoor Speaker Depot SKU: BOM4.1.2
    • In Stock


      Compare at: $529.99
      You Save: $233

    • Countdown Truck
      FREE Delivery by ,
      Order within hours and minutes
      Change Shipping Zip ? Free Shipping Over $50
      More Delivery Options

    Lifetime Tech Support


    Lifetime Tech Support

    • A powerful wireless outdoor audio system with 8” subwoofer 
    • Includes a 4.1 (2 x 60W) digital amplifier that powers the subwoofer and additional outdoor speakers
    • Built-in Wireless BT receiver pairs with tablets and smartphones for wireless audio control 
    • Pair with outdoor rock, patio, pendant or garden speakers
    • 360-degree omni directional design for easy placement and wide coverage
    • Outdoor rated power supply and sturdy ABS plastic enclosure
    • All-weather antique bronze cabinet blends effortlessly into landscapes
    • Wireless BT range between 30-75 ft 
    • Plugs into standard AC outlets
    Transform Your Outdoor Sound with the BOM4.1.2
    The BOM4.1.2 outdoor subwoofer/satellite system is the ultimate solution for elevating your outdoor audio experience. With its 4.1 digital amplifier and Wireless BT connectivity, this system provides wireless control over your music library or streaming services. The 8” subwoofer enclosure has a 360-degree omni-directional design, making it easy to place anywhere. Two stereo outputs and a separate amplifier allow you to connect up to two pairs of landscape or satellite speakers for full coverage and maximum volume. Durable and weather-resistant, this outdoor subwoofer is built with all-weather components, including an IP67-rated power supply, and has an antique bronze cabinet that seamlessly blends into your outdoor décor.

    What Is IP67 Rated? 
    If you’re investing in an outdoor speaker, be sure that claims of waterproof or water resistance are backed up with an IP rating. IP67 is an International Protection Rating given to products that meet certain criteria. The BOM4.1.2 includes an IP67 rated power supply that is 100% protected against solid objects like dirt, dust and sand and has been tested to work for at least 30 minutes after being immersed in water. This is important in backyards with pools and sprinklers where splashes can damage or short out the power supply.

    Wireless BT Flexibility
    Every environment is different, but we've tested our outdoor Wireless BT subwoofer unobstructed up to 75 feet and receive a clear audio signal. Your environment may have trees and other factors that can inhibit Wireless BT transmission but line-of-sight transmission is generally between 35 and 75 feet, and pairing takes only a few minutes. Be sure the Wireless BT device and the speakers are turned on and fully powered or fully charged. Wireless BT controls are typically found in the device's Setting or Connections menu. The speakers will output a Wireless BT Sync code that will be received by the Wireless BT device and settings such as volume, mute, etc., are controlled directly from your phone, tablet or other Wireless BT-enabled device.

    Warning: California's Proposition 65


    This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to

    • Speaker Type: Outdoor Wireless BT Powered Subwoofer w/ Stereo Outputs
    • Woofer: 8" Polypropylene Cone with Butyl Rubber Surround
    • Frequency Response: 50Hz to 20kHz
    • Power Handling: 100W
    • Impedance: 8 Ohms
    • Stereo Output: Class D 60W x 2 Pair
    • Wireless BT Range: 30-75 Feet Line of Sight
    • Wireless BT Version: 5.0
    • Compatible with A2DP Standard
    • Features Dual Stereo Output Connections (Speakers Sold Seperately)
    • What's Included: IP67 Waterproof Power Adapter
    • Power Supply Length: Plug to Transformer - 3' 5", Transformer to Speaker - 15' 5"
    • Unit Dimensions: (L x H x D) 14" x 17" x 14"
    • Sold As: Single
    • Weight: 13.5 lbs
    • Warranty: 1 Year
    12 Questions asked
    Have a Questions?

    What's on your mind?

    Eric • 05/28/2020, 11:35:52 PM What speakers could you pair with this sub. The little dome speakers shown in the photo look like they wouldn't produce very good sound at higher volume levels. Not sure if I would add some wood posts to mount some speakers or some type of ground speaker.
    Customer Service • 05/29/2020, 8:19:30 PM
    Hi Eric: You would be surprised how good the LS-2 and LS3 small garden pendant speakers sound when they add a complementary 100-Watt 8-inch sub-woofer. The RX550 Rock speaker, AP520 and AP525 Patio Speaker, and the PS520 Patio Speakers also work well with the BOM4.1.2. Note The two internal Stereo 60 watts per channel digital Amplifiers will drive a 4-ohm load, so you drive two pair of any of the speakers listed above or 4 pairs total off the two internal Amps. You could even pick different types of speakers to run off each respective AMP. They would have to be the same two pair of a single amp but one amp could do two pair of RX-550 Rocks and the second internal amp could do a two pair of AP525. Another advantage to the Sub enclosure because it is a sealed sub-woofer system you can experiment with different locations before burying it two to six inches in the ground. TL/5-29-2020
    Jim V • 05/31/2020, 8:27:17 PM Can this sub be paired with Bluetooth speakers? ( the BTP650‘s for instance)
    Customer Service • 06/03/2020, 12:09:22 PM
    Hi JimV: It depends on your enabled device if it has the ability to sync up with multiple Bluetooth Devices at the same time. There are some hubs out there. The BOM4.1 and now the BOM4.1.2 were created so you could connect at a minimum two pair of speakers. Like two pair of AP525 are a perfect combo. The internal stereo amps are rated at 4-ohm so you could do four pair of RX-550 rocks or four pair of LS3 pendant speakers. Like other Bluetooth it is a closed system but the multiple channels are available after the Receiver, so there are more options built around an 100 Watt 8" Subwoofer. TimL/5-3-2020
    Eric • 06/01/2020, 10:51:40 AM Thanks for the previous reply very helpful. I tried to pull up the link to manual but said page not found. I wanted to see how you sync to BT and see if it had a power switch since I would be burying part of the speaker. Just curious if it had a sleep mode and how you wake it back up. Or do you just unplug when not using? I was thinking about purchasing the rock speakers suggested in my previous question to go with this sub. I have a patio about 50 ft wide. I thought about putting the Sub in the middle then running 1 pair on each side of the sub. Any issues with running speaker wire from those amps around 25 foot? You said the amps were stable at 4 ohms, could I run 2 pairs in parallel off one amp and 1 pair off the other amp. Or would those 2 sets in parallel be a louder? I would do this if I decided to go 2 pairs on one side of the sub and 1 pair on the other. What do you suggest for 50 foot? Thanks,
    Customer Service • 06/03/2020, 12:34:13 PM
    Hi Eric: There is no on/off switch, it just goes to sleep when not in use, I believe you will want to disconnect from your device to make sure. I have done some research into external outdoor plugs which have on/off capability through an app. There are a number of choices. The speaker cables are 10 feet coming off the enclosure, I believe we recommend no longer than 30 feet away. That is an interesting question about two pairs on the one amp and a single pair for the other amplifier. I think you can add an inline volume control between the enclosure and the first pair of speakers. In case you had to adjust between the two amps.I would definitely recommend if you do connect two pairs that they are identical pairs. And if you do different pairs between the two amps that at least they are similar like a Patio speaker AP525 on one and an RX-550 Rock on the other. TimL/6-3-2020
    Thomas Ha • 06/24/2020, 7:17:39 PM Does the subwoofer needs to be installed partial underground? Can I put it on an outdoor kitchen counter?
    Customer Service • 06/27/2020, 3:20:12 AM
    Hi Thomas: The new BOM4.1.2 is designed to buried so the outlet of the low frequencies couple with the ground. The new down firing design does not have to be buried as deep as the original 4.1. We did have customer bury his in-ground sub half a wine barrel. An Outdoor sub needs something to make up for the lack of four walls. TimL/6-27-2020
    Sean • 04/25/2021, 3:29:03 AM Can this sub be run with just 1 pair of speakers, such as the RX550 rock speakers? Also, is there anyway you can make the manual available. It won't download from the site. Thank you.
    Customer Service • 04/29/2021, 12:43:08 PM
    Hi Sean The RX550 is a perfect match for BOM4.1.2. It will have a dedicated 60 watts per channel amp. You have a second internal amp if you want to drive a second pair as well. See additional drawings I sent along with the owner's manual. Regards Timl/4-29