Background music amplifier controller

Product introduction:

Two major technological innovations: 1. The surface adopts the most popular acrylic panel processing technology, which is innovative in the industry; 2. The operation buttons adopt touch button design, which is innovative in the industry. The surface adopts a popular flat design, which is simple and generous. This product is positioned as a classic product in the economical series that combines beauty, sound quality and affordability. It is widely used in hotel rooms, restaurant boxes, families and other places.

Function introduction:

Adopting the new digital Suzhou technology, it has low heat generation, low distortion, low noise, high efficiency and good sound quality.

High-fidelity stereo: It can restore the sound source and sound field positioning with high "credibility".

2-way audio source selection: 1 public audio source (wiring) and 1 local audio source (MP3 external plug-in).

Technology MP3 external plug-in input: There is a headphone jack for MP3 insertion at the bottom (through a dedicated connection line).

Technical indicators:

Power supply: AC220V 50Hz

Output power: 12W+12W (MAX)

Input impedance: 47KΩ

Output impedance: 8Ω

Total harmonic distortion: 0.03%

Frequency response: 20Hz-20KHz

Dimensions: 86*86*58mm (length×width×thickness)

Usage reminder:

Matching speaker: It is recommended to use a speaker with a power of 5-15W, impedance: 4-8Ω, and a speaker unit size of 5-6.5 inches.

Matching bottom box: standard 86-type dark box.

Cable description: This product system uses 3 types of cables: ① Wire: 1-2 square soft wire; ② Audio cable (two-core shielded wire: commonly known as microphone cable): RVVP2×0.3 RVVP2×0.5 RVVP2×0.75; ③ Audio cable (commonly known as gold and silver wire): RVH2×0.5 RVH2×0.75.

Wiring reminder: When there are multiple points (multiple rooms, multiple products), the wiring adopts parallel connection, which can be connected from the line or through the junction box.

Wiring method:

The live wire of 220V is connected to L, and the neutral wire is connected to N. The output R+ and R- are connected to one speaker, L+ and L- are connected to another speaker, the input R is connected to the red wire, L is connected to the white wire, and the shielding layer is connected to GND.

Operation method:

To turn on and off the 220V power supply, turn the 220V power switch to the left to turn on the power, and turn it to the right to turn off the power. After turning on, the controller is in standby working state.

Switch of the controller: In standby state, press and hold the power button until the indicator light keeps flashing, then the controller is turned on, and the volume plus and minus keys will work. After turning on, the indicator light of the power button is always on. When it is turned on, press and hold the power button until the indicator light keeps flashing, the controller is turned off, and all the lights go out after a few seconds.

Volume control: When the controller is turned on, press the volume up or down button, press it once, the volume will increase or decrease by one level accordingly; press and hold until the indicator light keeps flashing, then it will increase or decrease continuously.

When the MP3 jack below is inserted, the input signal of the wiring madman behind is automatically disconnected, and the signal of this channel is selected for playback.

Notes:

1. Do not use in a humid environment, and non-professionals should not open it.

2. If the product is not used for a long time, please turn off the power.