Instruction Manual

K3-BT-1 instruction manual
1. Model: k3-BT-1 Bluetooth version 5.0 + Power: 2 * 15W
2. Appearance dimension: 46mm * 76mm, with 3mm diameter screw holes around.
three Instructions: refer to the silk screen on PCB for wiring.
four Service conditions:
(1) Power supply range: DC 8-15v; Current 2-3a (power greater than 30W)
(2) Speaker * 2: 4 / 6 / 8 ohm, greater than 15W
(3) Connecting line: 2.54 spacing of 3 2PS, and the length is determined by the customer.
Note: do not connect the positive and negative stages of the power supply reversely.
five Parameter test:
(1) Bluetooth mobile phone connection test or Bluetooth test box test.
(2) Test conditions: DC12V power supply 3a, 1kHz 0dB sinusoidal signal 4 Ω load:
A: Frequency response: 20Hz-20KHz
B: SNR: 2% distortion, 75db
C: Resolution: 70dB
D: Power output: distortion 1% 2 * 10W; Distortion 10% 2 * 15W
E: Rated power: 2 * 15W, (the power amplifier has overheating protection and overvoltage
protection)
F: Bluetooth distance: more than 10m
G: Rated voltage: 15V
6. Hardware introduction:
(1) Master IC: Jerry ac6925a, stereo output, Bluetooth version is 5.0
(2) Power amplifier: 2 * 15W stereo, cs8655

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