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Börjar med att länka till alla produkter och därefter kopiera in all information med den data som framgår via länken för er som inte vill ladda ned Wish.
Bas:
https://www.wish.com...bb4436e4cec2b0f
Diskant:
https://www.wish.com...39951c5a8462010
Övergångfilter:
https://www.wish.com...7718f2cd33a24d9
Bluetooth/förstärkare:
https://www.wish.com...68dfd3aee89897c
Nedan produktinformation för er som inte har tillgång till Wish:
Bas:
1PCS 3" inch 4Ohm 4 25W Full Range Audio Speaker Stereo Woofer Loudspeaker Horn
Type: 3 inch Mid Bass Speaker(DL30TZF-02)
Impedance: 4
Power: 25W
Case Volume: 2~3L
Sensitivity: 87 3dB
Diameter: 89mm
Hole Depth: 2.5mm
Opening Hole Diameter: 72mm
Rated Frequency: 80Hz~5.2KHz
Diskant:
Impedance: 6ohm
Power: 30W
Diameter: 52mm(2.05inch)
Height: 23mm(0.91inch)
Diagonal Hole Diameter: 45mm(1.77inch)
Panel Thickness: 3mm(0.12inch)
Opening Hole Diameter: 34mm(1.34inch)
colour:black
Material:metal
Övergångfilter:
Maximum Power: 200W
Intersect Frequency: 900Hz 5000Hz
Filter Circuit - Treble :12db/oct
Filter Circuit - Midiant: 6db/oct
Filter Circuit - Bass: 12db/oct
Applicable Impedance - Tweeter : 5~8Ω
Applicable Impedance - Midrange : 6~8Ω
Applicable Impedance - Woofer : 5~8Ω
Size: 112 x 85mm
Net weight: 0.24kg/piece
Bluetooth/förstärkare:
Audio input AUX+Bluetooth
Out power 100ff*2
Large heatsink
4-8ohm 50-200w
Protection mechanism, Overvoltage, undervoltage, overheating, short circiut
This product is full of materials, featuring high performance and high performance price, especially for HIFI music power amplifier with high power and high fidelity.
TPA3116D2 is a type D amplifier IC launched by TI company, which has very high index parameters.The maximum modulation frequency is 1.2MHZ, and the high power output distortion is less than 0.1%.
The red and gray ring inductors are specially designed for digital power amplifiers, featuring low loss, high bandwidth and high fidelity.
The 684 film capacitor is a special capacitor for audio amplifier, which has the characteristics of low loss, high bandwidth and high fidelity.
With AUX and bluetooth two audio source input mode, two in one.
Potentiometer adjust volume, with switch, easy to control volume, very suitable for DIY speakers.
Copper DC female head, fence terminal, withstand large current, no heat, no damage to the line, good wiring, not easy to short circuit.
5.0 bluetooth version, higher transmission efficiency, longer transmission distance.
Notes for use: the power switch on the board is standby switch, and the machine is in standby state with low power consumption after the switch is turned off. To completely turn off the power or to remove the DC plug on the machine for a long time, it is ok.
Question answers:
1. How to choose the power source?
The board's power supply is crucial.The higher the voltage, the greater the current, the more power output, if you only have 12V/1A, this can carry 3-4 inch speakers.If you are above 19V/5A, 8-10 inches is fine.Power supply must be highly valued.If the voltage is too low, the sound will easily cause distortion after amplification. If the current is too low to carry the speaker, the voltage will be pulled down, and the work will be abnormal or the sound quality will be poor.
It is recommended to use 18V19V24V power supply with current above 5A.If you only have 9V12V or 1A 2A power supply, you can also use it with low power. Be careful when using it at the maximum volume, it may cause distortion and affect the sound quality.
2. How to choose the speaker?
Common speakers are usually 8 ohms, can not distinguish between positive and negative polarity, the effect is the same, 4 ohms can also be used.If your horn power is small, it may be between 10W and 30W can also be used. The power supply voltage is small to prevent the speaker from burning down after playing loudly. For example, choose the power supply below 15V.If you are a 50w-300w speaker, don't worry about the speaker burning problem, you can choose a 12-24v power supply, the higher the selected voltage, then the greater the output sound or power.
3. How to choose bluetooth or AUX audio input mode?
Power up the power amplifier board, connect to the speaker, rotate the audio knob and the blue indicator light turns on, turn on the phone Settings -- bluetooth -- search to "bt-wuzhi", and then click connect, after connecting successfully, there will be ding dong prompt sound, at this time for bluetooth mode, play music can, next time on the power will automatically connect back with the phone.
If you want to use AUX audio input, then disconnect the bluetooth connection, there will be an audio prompt, insert the audio cable to play music.IN AUX (LINE IN) mode, the connection bluetooth automatically converts to bluetooth mode.
4. It's ok if the sound is small, but when the sound becomes larger, the sound will be turbid.
The sound has been distorted. Please replace the adapter with a higher voltage level.
5. It's ok if the voice is small, but when the voice becomes louder, the sound will slow down.
The power of the input power is insufficient, and the power supply itself is intermittent power failure protection, please replace the power supply with higher power;Or if the power is too large, the power amplifier plate generates serious heat, and the situation of thermal protection occurs. Reduce the power to use or check whether the heat sink fits well to strengthen the heat dissipation.
Redigerat av Cocorocko, 31 januari 2021 - 13:25.
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