Bobtot B48 5.1 Channel Home Theater System

What's in the box

• Subwoofer Speaker: 1PC
• Satellite Speakers (Center & FL & FR & SL & SR): 5PCS
• RCA Video Audio Cables: 3PCS
• 3.5mm to RCA Audio Stereo Cable: 1PC
• TV ARC Cable: 1PC
• Optical Audio Cable: 1PC
• Coaxial Cable: 1PC
• Remote Control: 1PC
• FM Antenna Cable: 1PC
• User Manual: 1PC

Important Safety Instructions

CAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN.

To reduce the risk of electrical shock, do not remove amplifier plate. No user serviceable parts inside. We recommend taking the unit to a qualified service technician for any repairs.

• Do not place these speakers on an unstable surface. The speaker may fall over, causing serious injury to a child or adult and serious damage to the unit.
• Do not use these speakers near water or expose them to rain or moisture.
• The speakers should be situated away from heat sources such as radiators, heat registers, stoves, or other devices that produce heat.
• Please use under specified voltage (120V/60Hz). Any other voltage than the specified voltage may cause fire or electric shock.
• To reduce the risk of electric shock or component damage, unplug the power before moving your speakers or connecting other components to your device.
• Clean only with a soft dry cloth. Unplug the main unit from the wall outlet before cleaning.

CAUTION: Always use a power outlet that is properly grounded.

Front Panel of Subwoofer

The front panel of the subwoofer features the following:

• 1. MIC: MIC 1 & 2 socket
• 2. Digital Display
• 3. 5.1/2.1: 5.1/2.1 function key
• 4. ST.BY: Standby function. Press for 3 seconds in AUX/USB/FM/BT/OPTICAL/COAXIAL/TV ARC mode.
• 5. VOLUME INPUT: Turn the knob to decrease or increase the volume. Input function key, switches among AUX/USB/DVD/FM/BT/OPTICAL/COAXIAL/TV ARC modes.
• 6. CH-/<<: "Previous" function key. Previous song when USB/SD input; Previous channel when FM input.
• 7. AUTO/>||: USB Pause/Play function key. In FM state, automatically searches and saves radio stations.
• 8. CH+/>>: "Next" function key. Next song when USB/SD input; Next channel when FM input.
• 9. SD/MMC CARD: SD card socket (max file size 64Gb)
• 10. U DISK: USB socket (max file size 64Gb)

Back Panel of Subwoofer

The back panel of the subwoofer includes:

• 1. Power input
• 2. Power switch (ON/OFF)
• 3. TV ARC audio input
• 4. Optical audio input
• 5. Coaxial audio input
• 6. FM antenna
• 7. AUX AUDIO INPUT: RCA to RCA or RCA to 3.5mm AUX audio input
• 8. DVD AUDIO INPUT: 3PCS RCA DVD audio input (front L&R/center/subwoofer/rear L&R)
• 9. AUDIO OUTPUT: Center speaker/Front L/R speakers/Rear L/R speakers audio output

Remote Control Functions

• Power: Power/Standby
• INPUT: Switch between input modes (USB/SD/FM/AUX/DVD/OPT/COA/TV ARC/BT)
• MUTE: Mute all output
• 5.1/2.1: Channel mode select
• SLEEP-/+: Setting the sleep time
• SAVE: Save stations to unit memory
• TUNE+/-: Manually tune FM stations
• >||: Play/Pause in USB/SD/BT modes
• AUTO: Automatic station search
• CH-/<<: Previous FM station/previous track (USB/SD)
• CH+/>>: Next FM station/next track (USB/SD)
• FL+/-: Front left speaker volume control
• FR+/-: Front right speaker volume control
• SW+/-: Subwoofer volume control
• CEN+/-: Center speaker volume control
• VOL+/-: Master volume control
• SL+/-: Rear satellite left speaker volume control
• SR+/-: Rear satellite right speaker volume control
• 0-9: Number pad for direct track selection in USB/SD mode
• REPEAT: Repeat one song/repeat all songs/shuffle
• RESET: Reset volume level
• MIC+/-(EQ+/-): Controls microphone volume. In USB/SD mode, navigates 5 preset EQ curves. Connecting mics overrides EQ function.
• ECHO+/-(DISP+/-): Controls echo effect for microphones. Controls display brightness when no mics are connected. Connecting mics overrides DISP function.

Note:

1. Turn on the unit, press the "Power" button before selecting the input mode.
2. If the remote control does not work, replace the batteries.

Best Placement for 5.1 Home Theater System

For optimal surround sound, position the speakers as follows:

• Center Speaker: Front, directly above or below the display.
• Front Left (FL) & Front Right (FR) Speakers: To the left and right of the display, angled towards the listening position (approx. 20-30 degrees from center).
• Surround Left (SL) & Surround Right (SR) Speakers: To the sides or slightly behind the listening position, angled towards the listening position (approx. 90-110 degrees from center).
• Subwoofer: Typically placed in a corner or along a wall for best bass response.

Set Up Center & Front & Rear Speakers

Center Speaker: Cable length: 157.48 inches

FL speaker: Cable length: 157.48 inches

FR speaker: Cable length: 157.48 inches

SL speaker: Cable length: 374.02 inches

SR speaker: Cable length: 374.02 inches

Connect the speaker cables to the corresponding outputs on the back of the subwoofer.

Mounting Instructions

Included: mounting brackets and screws.

Included: speaker cable (built-in).

Not included: wall hooks, screwdriver.

Ensure you have all necessary screws and brackets. There are five brackets and one bag of screws.

Vertical Installation: Use two screws to secure one bracket to the back of each speaker you wish to mount.

Horizontal Installation: Use two brackets with four screws for each speaker to mount the wall.

Wall Mounting Steps:

• Mark the wall for speaker placement.
• Use the placement diagram to determine the best location.
• Ensure FL & FR speakers and SL & SR speakers are at the same height.
• Keep speakers at least two feet away from corners to ensure sufficient wire length.
• You can use a screw or a mounting hook.
• For drywall, use a screw with a drywall insert. For studs, drive the screw directly into the stud.
• Use a stud finder to locate studs and ensure no wires or cable lines are present in the area.
• Mount the speakers.

System Connection Diagram

Verify your device has the necessary audio/video output jacks to connect to the subwoofer.

Connections:

• TV ARC/OPT/COA INPUT: Connect to TV or Projector via ARC, Optical, or Coaxial cable.
• AUX INPUT: Connect to PC, Computer, Phone, or MP3 player.
• DVD AUDIO INPUT: Connect to TV, VCD, or DVD player.
• AUDIO OUTPUT: Connect speakers to the subwoofer.

How to use the wireless BT

1. Plug in the speakers and turn the subwoofer power ON.
2. Press the "ST.BY" button.
3. Press the "INPUT" button to select "BT" mode.
4. Search for the Bluetooth device named "Bobtot B48".
5. Connect to the Bluetooth device.

Note: If your BT device is below version 2.0, use password "0000" for connection.

How to connect your device by TV ARC Cable

1. Plug the TV ARC cable into the ARC Input socket on the subwoofer and the other end into your TV's ARC slot.
2. Ensure speakers are connected and the subwoofer is powered ON.
3. Press "ST.BY" to select the mode.
4. Press "INPUT" to switch to "ARC" status.
5. TV Setting: Sound Output -> Select "TV ARC".
6. TV Setting: Expert Setting -> Digital Output Audio Format -> Select "PCM".

Note: B48 ARC output supports LPCM 2.0 audio format only.

How to connect your device by Optical Cable

1. Remove the protective cover from the Optical Cable before plugging in.
2. Plug the Optical cable into the Optical Input socket on the subwoofer and the other end into your TV's optical slot.
3. Ensure speakers are connected and the subwoofer is powered ON.
4. Press "ST.BY" to select the mode.
5. Press "INPUT" to switch to "OPT" status.
6. TV Setting: Sound Output -> Select "Optical".
7. TV Setting: Expert Setting -> Digital Output Audio Format -> Select "PCM".

How to connect your device by Coaxial Cable

1. Plug the Coaxial cable into the Coaxial Input socket on the subwoofer and the other end into your device's coaxial slot.
2. Ensure speakers are connected and the subwoofer is powered ON.
3. Press "ST.BY" to select the mode.
4. Press "INPUT" to switch to "COA" status.
5. TV Setting: Sound Output -> Select "Coaxial".
6. TV Setting: Expert Setting -> Digital Output Audio Format -> Select "PCM".

How to connect your device by RCA Stereo Audio Cable

1. Plug the RCA Stereo Audio cable into the back of the subwoofer (White to White Connector, Red to Red Connector). Connect the other end to your device's L&R Output slots.
2. Ensure speakers are connected and the subwoofer is powered ON.
3. Press "ST.BY" to select the mode.
4. Press "INPUT" to switch to "AU" status.

How to connect your device by 3.5mm to RCA Audio Stereo Cable

1. Plug the RCA L/R Stereo Audio cable into the back of the subwoofer (White to White Connector, Red to Red Connector). Plug the 3.5mm AUX port into your device's Headphone Output slot.
2. Ensure speakers are connected and the subwoofer is powered ON.
3. Press "ST.BY" to select the mode.
4. Press "INPUT" to switch to "AUX" status.

How to connect your device by 3RCA Audio Stereo Cable

1. Plug the 3RCA Stereo Audio cable into the back of the subwoofer (White to White Connector, Red to Red Connector).
2. Ensure speakers are connected and the subwoofer is powered ON.
3. Press "ST.BY" to select the mode.
4. Press "INPUT" to switch to "DV" status.

How to use FM radio by Antenna

1. Plug the white Antenna cable into the back of the subwoofer.
2. Ensure speakers are connected and the subwoofer is powered ON.
3. Press "ST.BY" to select the mode.
4. Press "INPUT" to switch to "FM" status.
5. Long press "AUTO" for 3 seconds for automatic station searching.
6. Press "TUNE+/TUNE-" to search for a station.
7. Press "CH-/CH+" to select the broadcast channel.
8. Press "SAVE" to save the radio channel.

Microphone for Karaoke

The B48 home theater system supports wireless or wired microphones (1 or 2 mics).

• Wireless microphone: Plug the mic receiver into the mic jack of the subwoofer.
• Wired microphone: Plug and play.
• Microphone Volume: Use the "MIC+/ MIC-" buttons on the remote.
• Microphone Echo Effect: Use the "ECHO+/ ECHO-" buttons on the remote.

Product Specifications

• 5.1 Channel Home Theater System
• 700 Watts Peak Power
• 350 Watts Program Power
• 175 Watts Continuous RMS Power
• BT Version: 5.0+EDR
• Input Voltage: AC 120V/60Hz
• System Impedance: 5.25" : 8Ohm / 3" driver: 4 Ohm
• Frequency Response: 20Hz - 20KHz
• Amplifier: Class AB, efficient amplifier with top components
• Signal to Noise Ratio: ≥70dB (Maximum output with THD+1<1%)

Certification

FCC Warning

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

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• Call or Message: +1 (888) 572-1718
• Email: service@bobtot.net