1. उत्पादन संपलेview
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.
द 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.
प्रतिमा 1.1: समोर view of the COOLMUSIC AC20 Acoustic Guitar Ampलाइफायर
Image 1.2: Internal speaker configuration with an 8-inch woofer and a 2-inch tweeter.
2. सेटअप
२.१ अनपॅकिंग आणि प्रारंभिक तपासणी
काळजीपूर्वक काढा 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 वीज जोडणी
- याची खात्री करा amplifier's power switch is in the बंद स्थिती
- Connect the provided power adapter to the DC IN port on the rear panel of the ampलाइफायर
- पॉवर ॲडॉप्टरला योग्य इलेक्ट्रिकल आउटलेटमध्ये प्लग करा.
- पॉवर स्विच कडे वळवा ON position. The power indicator light should illuminate red.
महत्त्वाचे: 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 ब्लूटूथ कनेक्शन
ब्लूटूथ डिव्हाइस कनेक्ट करण्यासाठी:
- याची खात्री करा ampलाइफायर चालू आहे.
- दाबा मोड वर बटण 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).
- एकदा पेअर केल्यानंतर, तुम्ही तुमच्या डिव्हाइसवरून ऑडिओ प्ले करू शकता ampलाइफायर
Image 2.3: Visual representation of connecting a mobile device via Bluetooth to the ampलाइफायर
3. ऑपरेटिंग सूचना
3.1 नियंत्रण पॅनेल ओव्हरview
The front panel of the AC20 amplifier provides access to all essential controls for sound shaping and connectivity.
प्रतिमा २: तपशीलवार view च्या amplifier's front control panel.
Image 3.2: Diagram showing the layout of input, gain, effects, and EQ controls for both channels.
3.2 चॅनेल नियंत्रणे
- इनपुट: Connect your instrument or microphone.
- मिळवा: 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.
- कोरस: Adds a swirling, shimmering effect to the sound, creating a thicker, richer tone. Adjust the knob to control the intensity.
- रिव्हर्ब: 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
- खंड: The master volume control adjusts the overall output level of the ampलाइफायर
- मोड: 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 हेडफोन आउटपुट
द amplifier includes a फोन 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.
८.५ डीआय आउटपुट
द 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. देखभाल
- स्वच्छता: च्या बाहेरील भाग स्वच्छ करण्यासाठी मऊ, कोरडे कापड वापरा amplifier. Avoid using abrasive cleaners or solvents.
- स्टोरेज: साठवा ampथेट सूर्यप्रकाश आणि अति तापमानापासून दूर थंड, कोरड्या जागी लिफायर.
- वायुवीजन: भोवती योग्य वायुवीजन सुनिश्चित करा ampजास्त गरम होण्यापासून रोखण्यासाठी लिफायर. कोणतेही व्हेंट ब्लॉक करू नका.
- पॉवर अडॅप्टर: Always use the original power adapter. Disconnect the power adapter from the wall outlet when the ampलाइफायर बराच काळ वापरात नाही.
5. समस्या निवारण
| समस्या | संभाव्य कारण | उपाय |
|---|---|---|
| शक्ती नाही | 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. |
| आवाज आउटपुट नाही | 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. |
| विकृत आवाज | 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. |
| ब्लूटूथ कनेक्ट होत नाही | Amplifier not in Bluetooth mode; Device too far; Interference | Press MODE button to select Bluetooth. Ensure device is within range. Restart both ampलाइफायर आणि ब्लूटूथ डिव्हाइस. |
6. तपशील
- मॉडेल: AC20
- आउटपुट वॅटtage: 20 वॅट्स
- स्पीकर कॉन्फिगरेशन: 8-inch Woofer, 2-inch Tweeter
- चॅनेल: 2
- प्रभाव: Reverb, Chorus
- तुल्यकारक 3-Band EQ (Bass, Mid, High) on Line 2
- कनेक्टिव्हिटी: Bluetooth, USB, Phone In (Auxiliary), DI Out, Headphone Out
- सुसंगत उपकरणे: Guitar, Microphone, Keyboard, etc.
- उर्जा स्त्रोत: Corded Electric (18V DC, 2500mA)
- आयटम वजन: ३.७४ पौंड (अंदाजे १.७ किलो)
- उत्पादन परिमाणे: ६ x ५ x ३ इंच (अंदाजे १५.२ x १२.७ x ७.६ सेमी)
- साहित्य: प्लॅस्टिक संलग्नक
