1. Producte acabatview
The COOLMUSIC AC20 is a versatile 20-watt acoustic guitar amplifier designed for various musical applications, including live performances, studio recording, and practice. It features two independent channels, a 3-band equalizer, and built-in Reverb and Chorus effects. Connectivity options include Bluetooth, USB, and auxiliary inputs, providing flexibility for different audio sources.
El amplifier is equipped with an 8-inch woofer and a 2-inch tweeter to deliver clear and natural sound reproduction for both acoustic instruments and vocals.
Imatge 1.1: Frontal view of the COOLMUSIC AC20 Acoustic Guitar Ampmés viu.
Image 1.2: Internal speaker configuration with an 8-inch woofer and a 2-inch tweeter.
2. Configuració
2.1 Desembalatge i inspecció inicial
Traieu amb cura amplifier and all accessories from the packaging. Inspect the unit for any signs of damage. The package typically includes the AC20 amplifier, a power adapter, a microphone, and an audio cable.
Image 2.1: The AC20 amplifier shown with an included microphone and audio cable. Note that microphone types may vary.
2.2 Connexió d'alimentació
- Assegureu-vos el amplifier's power switch is in the OFF posició.
- Connecteu l'adaptador de corrent proporcionat a DC IN port on the rear panel of the ampmés viu.
- Connecteu l'adaptador d'alimentació a una presa de corrent adequada.
- Gireu l'interruptor d'alimentació a ON position. The power indicator light should illuminate red.
Important: Use only the original power adapter supplied with the amplifier. Using a non-original adapter may cause damage to the unit.
Image 2.2: Rear panel illustrating the power switch, DC IN port, and safety warnings.
2.3 Instrument and Microphone Connections
The AC20 amplifier features two input channels:
- Line 1 (Microphone/Instrument): This channel typically features an XLR/TRS combo input for microphones or instruments. It includes Gain and Reverb controls.
- Line 2 (Instrument): This channel typically features a 1/4-inch input for instruments. It includes Gain, 3-Band EQ (Bass, Mid, High), Chorus, and Reverb controls.
Connect your acoustic guitar, microphone, or other instruments to the appropriate input jacks on the front panel.
2.4 Connexió Bluetooth
Per connectar un dispositiu Bluetooth:
- Assegureu-vos el ampel lifier està encès.
- Premeu el botó MODE botó a amplifier's control panel until the Bluetooth indicator is active.
- On your Bluetooth-enabled device (e.g., smartphone, tablet), search for available Bluetooth devices and select "AC20" (or similar name).
- Un cop emparellat, podeu reproduir àudio des del vostre dispositiu mitjançant el ampmés viu.
Image 2.3: Visual representation of connecting a mobile device via Bluetooth to the ampmés viu.
3. Instruccions de funcionament
3.1 Tauler de control acabatview
The front panel of the AC20 amplifier provides access to all essential controls for sound shaping and connectivity.
Imatge 3.1: Detallada view de la amplifier's front control panel.
Image 3.2: Diagram showing the layout of input, gain, effects, and EQ controls for both channels.
3.2 Controls de canal
- Entrada: Connect your instrument or microphone.
- Guany: Adjusts the input sensitivity for each channel. Set this to achieve a strong signal without distortion.
- Bass, Mid, High (3-Band EQ): Available on Line 2, these controls allow you to shape the tonal characteristics of your instrument. Adjust to enhance or cut specific frequency ranges.
- Cor: Adds a swirling, shimmering effect to the sound, creating a thicker, richer tone. Adjust the knob to control the intensity.
- Reverb: Simulates the natural echo of a room, adding depth and space to your sound. Adjust the knob to control the amount of reverb.
3.3 Master Volume and Media Controls
- Volum: The master volume control adjusts the overall output level of the ampmés viu.
- Mode: Switches between different input modes (e.g., Bluetooth, USB, auxiliary).
- BT & USB Controls: Play/Pause, Previous Track, Next Track buttons for controlling media playback from Bluetooth or USB sources.
3.4 Sortida d'auriculars
El amplifier includes a Telèfons output jack on the rear panel for private practice. Connect standard headphones to this jack. The main speaker output will be muted when headphones are connected.
Image 3.3: Headphones connected to the amplifier's output for silent practice.
3.5 Sortida DI
El D.I. out port on the rear panel allows you to send the amplifier's signal directly to a mixing console or another audio interface. This is useful for recording or connecting to a larger PA system.
4. Manteniment
- Neteja: Utilitzeu un drap suau i sec per netejar l'exterior ampEviteu utilitzar netejadors o dissolvents abrasius.
- Emmagatzematge: Emmagatzemar el ampGuardar en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Ventilació: Assegureu-vos una ventilació adequada al voltant amplifier to prevent overheating. Do not block any vents.
- Adaptador d'alimentació: Always use the original power adapter. Disconnect the power adapter from the wall outlet when the amplifier is not in use for extended periods.
5. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense poder | Power adapter not connected; Power switch off; Faulty outlet | Ensure power adapter is securely connected and plugged into a working outlet. Turn the power switch ON. |
| Sense sortida de so | Volume too low; Instrument/mic not connected; Headphone connected; Faulty cable | Increase Master Volume and channel Gain. Check all cable connections. Disconnect headphones. Test with a different cable. |
| So distorsionat | Gain set too high; Master Volume too high; Faulty instrument/mic | Reduce channel Gain and/or Master Volume. Test with a different instrument or microphone. |
| Bluetooth no connectat | Amplifier not in Bluetooth mode; Device too far; Interference | Press MODE button to select Bluetooth. Ensure device is within range. Restart both amplifier and Bluetooth device. |
6. Especificacions
- Model: AC20
- Potència de sortidatage: 20 watts
- Configuració dels altaveus: Woofer de 8 polzades, tweeter de 2 polzades
- Canals: 2
- Efectes: Reverberació, Cor
- Equalitzador: 3-Band EQ (Bass, Mid, High) on Line 2
- Connectivitat: Bluetooth, USB, Phone In (Auxiliary), DI Out, Headphone Out
- Dispositius compatibles: Guitar, Microphone, Keyboard, etc.
- Font d'alimentació: Corded Electric (18V DC, 2500mA)
- Pes de l'article: 16 lliures (aprox. 7.26 kg)
- Dimensions del producte: 13 x 14 x 15 polzades (aprox. 33 x 35.6 x 38.1 cm)
- Material: Recinte de plàstic