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Product Instructions
Music Control Box
Model: KDDYM007
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Revision History
Mark Date
V
ersion Revision Content
2026.7.20 V1.0 First Release
I. Product Overview
This music control box is a multifunctional integrated audio power amplification system, suitable
for various audio output and haptic feedback scenarios. The module uses an efficient Class D
amplifier design, supports four independent outputs, and offers high-fidelity audio output with
strong driving capability. It's ideal for embedded audio systems, entertainment devices,
multimedia terminals, and more.
II. Main Features
1. Supports Bluetooth V6.0 wireless audio with playback latency under 200ms
2. Built-in 2 full-range speakers, 2 shakers, 1 subwoofer, and 1 programmable RGB light
3. Can do master-slave networking and sync music
4. LED strip modes include rhythm, breathing, and fixed color
5. Shakers can do rhythm, constant vibration, and various preset patterns
6. Controlled via serial port, works with external control boxes and wireless remotes
7. Compact design, easy to fit into bed systems
III. Electrical Specifications
Item Specification
Power Supply Voltage DC 24V (Rated)
Bluetooth Name
KDSofa-H-xxxx
Communication Method Serial, Baud Rate 115200, 5V Level
Bluetooth Version V6.0
Bluetooth Communication Distance >10 meters
Music Playback Latency ≤120ms
Full-range Speaker Power 2 × 15W @ 4Ω
Subwoofer power 50W @ 2Ω
Vibrator Power 2 x 20W @ 6Ω
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IV. Channel Function Description
Channel
Function Description Output Power (RMS) Load Impedance
Vibrater Channel (L/R) Drive vibration motor or
tactile device
2 × 20W 6Ω
Full-range Stereo
Channel (L/R)
Main audio output 2 × 15W 4Ω
Bass channel Low-frequency output 50W 2Ω
Light Strip
Music rhythm 1 × 5W —
V. Protection Functions
1. Over-temperature Protection: Output is shut off when chip temperature exceeds safe value
2. Over-current Protection: Automatic current limiting when output is short-circuited or overloaded
3. Short-circuit Protection: Automatically enters protection state when output is short-circuited
4. DC Protection: Automatically shuts off output when DC offset occurs
VI. Interface Definitions
Actual Hardware Function
Top Cover Mark / Position Interface Type / Description
Power port
Middle on the left 24V/5A power input
Control the serial port interface
Top center Serial port control, connect the
display
Audio jack
Control Serial Interface Left and right channels and bass
output
Vibration port
Middle on the right Two-way vibrator output
RGB light strip connector
Top center One-channel RGB light strip
control output (PWM/24V)
Connection diagram:
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VII. Mechanical Dimensions and Environmental Requirements
Item Specification
PCB Dimensions See Figure
Mounting Method Screw fixation or plug-in
Operating Temperature -10°C ~ +45°C
Storage Temperature -20°C ~ +50°C
Operating Humidity 10% ~ 90% RH, non-condensing
Cooling Method Heat sink
VIII. Product Outline Drawing (Unit: mm)
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Precautions:
1) Before use, make sure to connect the wires according to the system connection diagram, then turn on the
main power;
2) Children, the elderly, and people with disabilities should use under supervision;
3) Do not plug or unplug any connection cables while the power is on, as it may cause functional issues. If
this happens, you can turn off the main power and turn it back on after about 30 seconds to restore
functionality;
4) Do not use near fire sources or in high-temperature environments;
5) Do not use in dusty environments;
6) Keep away from water or other conductive objects;
7) Do not place flammable items around the product;
8) Make sure there is ventilation space around the product, and do not cover it while it is working;
9) Installation should be guided by a professional;
10) To meet FCC certification requirements, the whole product set should comply with FCC certification
instructions.
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FCC Statement
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.
This device 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 device 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 device does
cause harmful interference to radio or television reception, which can be determined by turning the device
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 device and receiver.
--Connect the device 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.
Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
RF warning for portable device:
The device has been evaluated to meet general RF exposure requirement. The device can be used in
portable exposure condition without restriction.
