AOSHIDA Gustard H26 Discrete Class A Headphone Ampലൈഫ്ഫയർ യൂസർ മാന്വൽ

1. ആമുഖം

The Gustard H26 is a high-performance discrete Class A headphone ampലൈഫയറും പ്രീamplifier designed for audiophiles. It features a fully balanced circuit design, robust power delivery, and versatile input/output options for an exceptional audio experience. This manual provides detailed instructions for setting up, operating, and maintaining your H26 ampജീവൻ.

ചിത്രം 1.1: ഫ്രണ്ട് view of the Gustard H26 headphone ampലിഫയർ, ഷോക്asing its sleek black design with a central volume knob and headphone jacks.

2. ഉൽപ്പന്ന സവിശേഷതകൾ

• Fully Balanced Discrete Class A Ampജീവപര്യന്തം: Utilizes 8 pairs of power transistors for sufficient drive and control, ensuring high-fidelity audio reproduction.
• Versatile Headphone Connectivity: Equipped with 6.35mm unbalanced, 4.4mm balanced, and 4-pin XLR balanced headphone outputs.
• Precision Volume Control: Features a matrix relay volume system, ensuring consistent 4-way volume adjustment without distortion or bias.
• Dual Toroidal Transformers: Incorporates two custom 50W audio-specific toroidal transformers, one for each channel, to prevent interference and provide stable power.
• High-Performance Preampജീവപര്യന്തം: പ്രീampജീവപര്യന്തം എസ്tage uses two direct-inserted LME49720 dual op-amps for clear signal processing.
• ഫ്ലെക്സിബിൾ ഔട്ട്പുട്ട് മോഡുകൾ: ഹെഡ്‌ഫോൺ amplifier power can be switched off separately, allowing the H26 to function as a pure preamplifier output. Preamplifier outputs can also be deactivated for easy switching between headphone and speaker listening.

ചിത്രം 2.1: ആന്തരികം view of the Gustard H26, highlighting the eight pairs of power transistors used in its fully balanced discrete Class A ampലൈഫയർ ഡിസൈൻ.

ചിത്രം 2.2: Close-up of the two 50W audio-specific custom toroidal transformers inside the Gustard H26, designed to prevent channel interference.

ചിത്രം 2.3: ആന്തരികം view illustrating the matrix relay volume control and the LME49720 dual op-amps used in the preampജീവപര്യന്തം എസ്tage of the Gustard H26.

3. സജ്ജീകരണം

3.1 അൺപാക്കിംഗ്

Carefully remove the Gustard H26 from its packaging. Inspect the unit for any signs of damage during transit. Retain the packaging for future transport or storage.

3.2 നിങ്ങളുടെ ഉപകരണങ്ങൾ ബന്ധിപ്പിക്കുന്നു

Refer to the diagram below for a clear understanding of the rear panel connections. Ensure all connections are secure before powering on the device.

ചിത്രം 3.1: Detailed diagram of the Gustard H26 rear panel, showing all input and output ports, power connections, and controls.

• ഇൻപുട്ട് കണക്ഷനുകൾ:
  • RCA Input (x1): Connect your single-ended audio source (e.g., DAC, CD player) to the RCA input jacks (Right/Left).
  • XLR Input (x2): Connect your balanced audio sources to the XLR input jacks. The H26 provides two sets of balanced XLR inputs (XLR1 and XLR2).
• പ്രീamplifier Output Connections:
  • ആർസിഎ പ്രീampലൈഫയർ ഔട്ട്പുട്ട്: നിങ്ങളുടെ വൈദ്യുതിയിലേക്ക് കണക്റ്റുചെയ്യുക ampആർ‌സി‌എ കേബിളുകൾ ഉപയോഗിക്കുന്ന ലൈഫയർ അല്ലെങ്കിൽ സജീവ സ്പീക്കറുകൾ.
  • XLR പ്രീampലൈഫയർ ഔട്ട്പുട്ട്: Connect to your balanced power amplifier or active speakers using XLR cables.
• പവർ കണക്ഷൻ:
  • എസി പവർ ഇൻപുട്ട്: Connect the provided power cable to the AC input.
  • വാല്യംtagഇ തിരഞ്ഞെടുക്കൽ: വോളിയം ഉറപ്പാക്കുകtagഇ സെലക്ടർ സ്വിച്ച് ശരിയായ വോള്യത്തിലേക്ക് സജ്ജീകരിച്ചിരിക്കുന്നുtage for your region (100-120V or 220-240V). തെറ്റായ വോളിയംtagഇ തിരഞ്ഞെടുക്കൽ യൂണിറ്റിന് കേടുവരുത്തും.
  • വൈദ്യുതി സ്വിച്ച്: Use this to turn the unit on or off.
  • ഫ്യൂസ്: The fuse holder is integrated into the AC input for protection.

3.3 പ്രാരംഭ പവർ ഓൺ

After all connections are made and the voltage is correctly selected, press the power switch on the rear panel to turn on the H26. The front panel display will illuminate.

4. പ്രവർത്തന നിർദ്ദേശങ്ങൾ

4.1 വോളിയം നിയന്ത്രണം

The H26 features a precise matrix relay volume control. Rotate the large knob on the front panel clockwise to increase volume and counter-clockwise to decrease it. The current volume level will be displayed on the front panel.

4.2 ഇൻപുട്ട് തിരഞ്ഞെടുക്കൽ

Use the input selector button (typically on the front panel, refer to the device for exact location) to cycle through the available RCA and XLR inputs. The selected input will be indicated on the display.

4.3 Headphone Output Usage

Connect your headphones to one of the three front panel jacks: 6.35mm (unbalanced), 4.4mm (balanced), or 4-pin XLR (balanced). Ensure your headphones are compatible with the selected output type. The H26 can drive a wide range of headphones.

4.4 പ്രീamplifier Functionality

The H26 can function as a dedicated preamplifier. To use it as a pure preamplifier, you can switch off the headphone amplifier power separately. Consult the front panel controls or menu options (if available) for this setting. This ensures that only the preamplifier section is active, optimizing performance for connected power ampലൈഫയർമാർ അല്ലെങ്കിൽ സജീവ സ്പീക്കറുകൾ.

ചിത്രം 4.1: The Gustard H26 integrated into a home audio system, demonstrating its use with a remote control for convenient operation.

5. പരിപാലനം

5.1 വൃത്തിയാക്കൽ

To clean the exterior of the H26, use a soft, dry, lint-free cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the finish. Ensure the unit is powered off and unplugged before cleaning.

5.2 പരിസ്ഥിതി പരിഗണനകൾ

Place the H26 in a well-ventilated area to prevent overheating, especially given its Class A operation. Avoid direct sunlight, heat sources, and areas with high humidity or dust. Do not block the ventilation openings.

6. പ്രശ്‌നപരിഹാരം

If you encounter issues with your Gustard H26, please refer to the following common troubleshooting steps:

• ശക്തിയില്ല:
  • Check if the power cable is securely connected to both the H26 and the wall outlet.
  • പിൻ പാനലിലെ പവർ സ്വിച്ച് 'ഓൺ' സ്ഥാനത്താണെന്ന് ഉറപ്പാക്കുക.
  • വോളിയം ഉറപ്പാക്കുകtage selector switch is set correctly for your region.
  • Check the fuse in the AC input. If blown, replace it with a fuse of the same type and rating.
• ശബ്ദമില്ല:
  • Confirm that the correct input source is selected on the H26.
  • Check all audio cables (RCA, XLR, headphone) for secure connections.
  • Ensure the volume level is not set to minimum or muted.
  • If using as a preamplifier, ensure the connected power amplifier or active speakers are powered on and functioning correctly.
  • If using headphones, ensure they are properly plugged into the correct jack and are functional.
• Distorted Sound or Noise:
  • അയഞ്ഞതോ കേടായതോ ആയ ഓഡിയോ കേബിളുകൾ പരിശോധിക്കുക.
  • Ensure the input source is not sending an excessively strong signal that could cause clipping.
  • Verify that the H26 is placed away from potential sources of electromagnetic interference (e.g., Wi-Fi routers, mobile phones).
  • If using balanced connections, ensure both ends are properly balanced.

7 സ്പെസിഫിക്കേഷനുകൾ

The following table details the technical specifications of the Gustard H26 Discrete Class A Headphone Ampജീവപര്യന്തം:

ചിത്രം 7.1: Official technical specifications table for the Gustard H26, detailing input, preampലൈഫയർ, ഹെഡ്ഫോൺ amplifier performance metrics.

8. വാറൻ്റിയും പിന്തുണയും

8.1 വാറൻ്റി വിവരങ്ങൾ

The Gustard H26 is covered by a manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and retailer. Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation provided with your purchase or contact your retailer.

8.2 സാങ്കേതിക പിന്തുണ

If you require technical assistance or have questions not covered in this manual, please contact your authorized AOSHIDA retailer or the manufacturer's support channels. When contacting support, please have your product model (H26) and purchase information readily available.