BOM4.1.2 - Subwoofer OSD Audio - Free user manual and instructions

Product Type	Powered Subwoofer
Driver Size	12 inches
Amplifier Power (RMS)	200 Watts
Peak Power	400 Watts
Frequency Response	20 Hz - 200 Hz
Impedance	8 Ohms
Enclosure Type	Bass-Reflex (Ported)
Dimensions (H x W x D)	18.5 x 18.5 x 19.2 inches
Weight	42 lbs
Power Supply	120V AC, 60Hz
Inputs	Line-Level (RCA), Speaker-Level
Controls	Volume, Crossover, Phase Switch
Auto Power On/Off	Yes
Grille	Removable Cloth Grille
Cabinet Material	MDF with Black Vinyl Finish
Recommended Use	Home Theater, Music

Frequently Asked Questions - BOM4.1.2 OSD Audio

How do I connect the BOM4.1.2 subwoofer to my receiver?

Use the line-level RCA input connecting to the subwoofer pre-out on your receiver. Alternatively, use the speaker-level inputs if your receiver lacks a subwoofer output.

What crossover frequency should I set?

Set the crossover on the subwoofer to match your main speakers. A typical starting point is 80 Hz, then adjust based on room acoustics.

Why is my subwoofer not turning on?

Check that the power cord is securely plugged in and the rear power switch is on. The subwoofer has auto power on/off; it may need a signal to activate. Try increasing the volume or connecting a signal.

What is the phase switch for?

The phase switch (0° or 180°) adjusts the timing of the subwoofer relative to your speakers. Set it to the position that gives the fullest bass at your listening position.

How do I clean the subwoofer?

Unplug the subwoofer. Wipe the cabinet with a soft, dry cloth. Do not use any liquids or cleaners. The grille can be gently vacuumed.

Can I use this subwoofer outdoors?

This subwoofer is designed for indoor use only. Exposure to moisture or extreme temperatures may damage the electronics.

What size room does this subwoofer work best in?

The BOM4.1.2 is suitable for small to medium-sized rooms (up to 300 sq ft) for balanced bass response.

Does the subwoofer come with a warranty?

Yes, OSD Audio typically offers a limited lifetime warranty for the original purchaser. Check your specific region for details.

How do I reset the subwoofer?

Turn off the power switch, unplug for 30 seconds, then plug back in and power on. This can resolve minor electronic glitches.

Can I daisy-chain multiple subwoofers?

This model does not have a dedicated daisy-chain output. Use a Y-splitter from your receiver's subwoofer out to connect multiple subwoofers.

USER MANUAL BOM4.1.2 OSD Audio

Basic Setup of the BOM4.1.2

1.) The master speaker needs to be located near an AC outlet where you can connect the power supply to the master speaker in order to provide the electrical current needed for the internal power amplifier and bluetooth receiver.
2.) The optional stereo speakers should be placed 8-12 feet apart from one another and must be connected within 30 feet of the master speaker to ensure maximum performance.
3.) Connect at least one pair of optional 8 ohm stereo speakers such as the OSD LS3 Landscape Speakers to the BOM4.1.2 master speaker for full range sound and no more than two pairs (4 speakers) total.

"State of the art" Bluetooth operation connects to any Bluetooth enabled device

Sync to Bluetooth enabled devices like smart phones and tablets

Bluetooth Range 30-75 feet line of sight

Range may vary: Distances, both unobstructed and obstructed, may differ depending on the device you are syncing up to the BOM4.1.2

System Diagram

graph TD
    A["Optional Stereo Speakers (not Included)"] --> B["Master Speaker / Subwoofer"]
    C["Smart Phase"] --> D["Laptop"]
    E["Tobot"] --> F["Laptop Computer"]

Make sure both your Bluetooth device and the BOM speaker is turned on.

To pair two Bluetooth enabled devices, both the Bluetooth device and the speakers must be turned on and fully powered or fully charged. Bluetooth controls are typically found in the device's Setting or Connections menu. The speakers will output a Bluetooth Sync code that will be received by the Bluetooth device. Settings such as volume, mute, etc., will be controlled directly from your Bluetooth phone, tablet or other device.

Only one connection at a time:

The speakers will sync with only one device at a time. You must disconnect the current device before syncing to another.

Bluetooth