AIYIMA A20 2.1 چینل پاور Ampد لوړ کارونکي لارښود

1. پیژندنه

The AIYIMA A20 is a 2.1 channel power amplifier designed for high-fidelity audio systems. It features a TPA3255 Class D amplifier chip, fully balanced circuitry with PFFB technology, and offers 300W x 2 output. Key functionalities include an adjustable High-Pass Filter (HPF), a dedicated subwoofer output, XLR and RCA input options, a 12V trigger for system integration, and a bypass function for use with external preamplifiers. This manual provides detailed instructions for the setup, operation, and maintenance of your A20 ampلايف

2. محصول ختم شوview

2.1 مخکښ پینل

انځور: مخکینۍ برخه view of the AIYIMA A20 amplifier, showing the power indicator, volume knob, and input selection switch.

• Power Indicator Light (On/Off/HPF): Indicates power status and HPF mode.
• د حجم کنټرول غوټۍ: Adjusts the output volume.
• Input Mode Switch (RCA/XLR): Selects between RCA and XLR audio inputs.

2.2 شاته پینل

Image: Rear panel diagram of the AIYIMA A20, detailing all input and output connections and controls.

• XLR Input (L/R): Balanced audio inputs for connecting sources with XLR outputs.
• د RCA ان پټ (L/R): Unbalanced audio inputs for connecting sources with RCA outputs.
• RCA Gain Switch (+3dB): Provides a +3dB gain boost for RCA inputs, useful for matching lower-output sources.
• HPF Knob: Adjusts the High-Pass Filter frequency (60-200Hz) when HPF mode is active.
• سوب وټ: Output for connecting an active subwoofer.
• د بای پاس تڼۍ: Engages or disengages bypass mode. Hold for 3 seconds to switch.
• 12V محرک ان پټ/آؤټ پوټ: For synchronized power control with compatible devices.
• د سپیکر محصول (L/R): Binding posts for connecting passive speakers.
• Power Input (DC 24-48V): Connects to the provided power adapter.

2.3 ابعاد

Image: Diagram illustrating the physical dimensions of the AIYIMA A20 ampلايف

The AIYIMA A20 amplifier measures approximately 190mm (7.48 inches) in length, 142mm (5.59 inches) in width, and 46mm (1.81 inches) in height. Its net weight is approximately 1115g (2.2 pounds).

3. کلیدي ځانګړتیاوې

• د لوړ فعالیت آډیو: Achieves a 116dB Signal-to-Noise Ratio (SNR) and 0.002% THD+N for clear sound reproduction.
• 2.1 د سیسټم ادغام: Features an adjustable High-Pass Filter (HPF: 60-200Hz) and a dedicated Subwoofer Output for optimized 2.1 channel audio setups.
• انعطاف پیوستون: Includes XLR and RCA inputs with a toggle switch for source selection.
• د بای پاس حالت: Allows the amplifier to function as a pure power amplifier, bypassing its internal volume control, ideal for use with external preampژغورونکي
• RCA Gain Switch: A +3dB gain switch for RCA inputs to match various source levels.
• 12V ټریګر: Enables synchronized power on/off with other compatible audio components.
• د کیفیت اجزا: Built with a 4-layer gold-sunk PCB, German WIMA capacitors, and Japanese Rubycon capacitors for reliability and sound integrity.
• Swappable Op-Amps: Features LME49720 op-amps in a swappable design, allowing for customization.
• موثره یخ کول: Internal air convection design ensures stable high-power operation.

4. د تنظیم کولو لارښود

4.1 اړیکې

Image: Diagram illustrating various connection possibilities for the AIYIMA A20 amplifier with different audio sources and outputs.

1. د سپیکر پیوستون: Connect your passive speakers to the Speaker Output binding posts on the rear panel. Ensure correct polarity (Red/Positive to Red/Positive, Black/Negative to Black/Negative).
2. د آډیو سرچینې پیوستون:
   • د XLR ننوتل: For balanced audio sources (e.g., high-end CD players, preamplifiers, DACs) using XLR cables.
   • د RCA ننوتنه: For unbalanced audio sources (e.g., CD players, streamers, DACs, computers via 3.5mm to RCA adapter) using RCA cables.
3. د Subwoofer پیوستون: If using an active subwoofer, connect its input to the SUB OUT port on the A20.
4. د 12V محرک ارتباط: If you have a compatible device (e.g., AIYIMA T20 preamp) with a 12V trigger output, connect it to the 12V Trigger Input on the A20 for synchronized power control.
5. د بریښنا پیوستون: Connect the provided DC48V 5A power adapter to the Power Input (DC 24-48V) on the rear panel, then plug the adapter into a wall outlet.

5. عملیاتي لارښوونې

1. پاور آن/بند: Once all connections are secure, turn on the amplifier using the power switch. The power indicator light will illuminate.
2. د داخلولو انتخاب: Use the Input Mode Switch on the front panel to select between RCA and XLR inputs based on your connected source.
3. د حجم سمون: Rotate the Volume Control Knob on the front panel to adjust the audio output level. Start with a low volume and gradually increase it.
4. High-Pass Filter (HPF) Adjustment:

   Image: Detail showing the HPF knob on the rear panel with frequency markings (60Hz, 80Hz, 120Hz, 200Hz).

   If you are using a subwoofer and wish to protect your main speakers from low bass frequencies, activate the HPF mode. Then, use the HPF Knob on the rear panel to set the desired crossover frequency between 60Hz and 200Hz. This directs frequencies below the set point to the SUB OUT and filters them from the main speaker outputs.

5. د بای پاس حالت:

   Image: Close-up of the Bypass button on the rear panel.

   To use the A20 as a pure power amplifier with an external preamplifier, press and hold the BYPASS button on the rear panel for 3 seconds. In bypass mode, the amplifier's internal volume control is maximized. Before engaging this mode, ensure the volume at your audio source or external preamplifier is reduced to prevent speaker damage. To exit bypass mode, press and hold the BYPASS button for 3 seconds again.

6. RCA Gain Switch: If your RCA audio source has a low output level, you can engage the +3dB gain switch located near the RCA inputs on the rear panel to boost the signal.

6. ساتنه

• پاکول: د بهرنۍ برخې پاکولو لپاره نرم، وچ ټوکر وکاروئ amplifier. Avoid using liquid cleaners or solvents.
• وینټیلیشن: ډاډ ترلاسه کړئ amplifier has adequate ventilation. Do not block the ventilation holes on the sides.
• چاپیریال: ساتل amplifier away from direct sunlight, heat sources, excessive moisture, and dust.
• بریښنا بنده: Always power off the amplifier and disconnect it from the power outlet before performing any maintenance or making connections.
• Op-Amp بدلول: If you choose to swap op-amps، ډاډ ترلاسه کړئ چې amplifier is powered off and disconnected. Refer to specialized guides for proper op-amp handling and replacement procedures.

  انځور: نږدې انځور view of the internal circuit board, highlighting the swappable op-amps.

7. ستونزه حل کول

• د غږ محصول نشته:
  • وګورئ که چیرې amplifier is powered on and the indicator light is active.
  • Verify that the correct input (RCA or XLR) is selected.
  • Ensure all audio cables are securely connected to both the source and the ampلايف
  • Check speaker connections for correct polarity and secure contact.
  • Adjust the volume knob. If in Bypass mode, ensure the external preamplifier's volume is not muted or too low.
• تحریف شوی غږ:
  • Reduce the volume level from both the source and the ampلايف
  • Check for damaged audio cables.
  • ډاډ ترلاسه کړئ چې د سپیکر خنډ سره سمون لري ampد ژوند کولو وړتیاوې.
  • If using RCA input, try toggling the +3dB gain switch off if the source output is already high.
• د ګونګو وهلو او شور غږول:
  • ډاډ ترلاسه کړئ چې ټولې اړیکې خوندي دي.
  • د نښلولو هڅه وکړئ amplifier and source to the same power outlet to avoid ground loops.
  • حرکت وکړئ ampد نورو بریښنایی وسیلو څخه لرې وساتئ چې ممکن د مداخلې لامل شي.
• 12V Trigger Not Functioning:
  • Verify that the connected device's 12V trigger output is active.
  • Ensure the 12V trigger cable is correctly connected.

8. مشخصات

8.1 Power Output (Approximate)

Image: Table detailing the rated and peak output power of the A20 amplifier under different power supply units (PSU) and speaker impedances.

۲. په بکس کې څه دي؟

Image: Visual representation of the items included in the AIYIMA A20 product package.

• 1 x AIYIMA A20 Balanced Stereo Power Ampلايف
• ۱ x DC۱۲V ۱A د بریښنا اډاپټر
• 1 x د کارونکي لارښود
• 1 x تضمین کارت
• 1 x 12V Trigger Cable

10. تضمین او ملاتړ

The AIYIMA A20 amplifier typically comes with a 2-year warranty from the date of purchase. Please refer to the included warranty card for specific terms and conditions. For technical support, troubleshooting assistance, or warranty claims, please contact AIYIMA customer service through the retailer where the product was purchased or visit the official AIYIMA webد اړیکو معلوماتو لپاره سایټ.