1. Pengenalan
Thank you for choosing the AUDALYTIC HP70 Fully Balanced Discrete Headphone Amplifier. This manual provides essential information for setting up, operating, and maintaining your device to ensure optimal performance and longevity. Please read it thoroughly before use.
The AUDALYTIC HP70 headphone amplifier, shown from the front, featuring its display, volume knob, and headphone outputs.
2. Kandungan Pakej
Sila semak pakej untuk item berikut:
- AUDALYTIC HP70 Main Unit
- Kabel Kuasa
- Alat Kawalan Jauh
- Kad Waranti
Diagram illustrating the items included in the AUDALYTIC HP70 package.
3. Produk Lebihview
3.1 Panel Depan
Panel hadapan menyediakan akses kepada kawalan penting dan output fon kepala.
Labeled diagram of the AUDALYTIC HP70 front panel.
- Butang Kuasa: Short press to mute/unmute; press and hold to switch between standby and on.
- Skrin Paparan: Shows volume level and function menus.
- Tombol Kelantangan: Rotate to adjust volume; short press to switch input source; press and hold to enter the menu.
- Jack fon kepala: 4.4mm balanced output.
- Jack fon kepala: 6.35mm single-ended output.
3.2 Panel Belakang
The rear panel features various input and output connections for audio sources and power.
Labeled diagram of the AUDALYTIC HP70 rear panel connections.
- XLR Balanced Inputs (Left/Right): Untuk sumber audio yang seimbang.
- RCA Single-Ended Inputs (L1/R1, L2/R2): Two sets for single-ended audio sources.
- RCA Single-Ended Outputs (L Out/R Out): For connecting to other audio equipment.
- XLR Balanced Outputs (Left/Right): For balanced output to other audio equipment.
- DC Input 15-18V: Untuk bekalan kuasa luaran.
- Input Kuasa: Standard AC power input. Switching power supply requires no manual voltage pemilihan.
- Fius: Fius kuasa untuk perlindungan.
4. Persediaan
- Sambungan Kuasa: Connect the provided power cable to the HP70's power input and then to a suitable AC power outlet. Alternatively, connect an external 15-18V DC power supply to the DC input.
- Sambungan Sumber Audio: Connect your audio source (e.g., DAC, CD player) to the desired input on the rear panel using appropriate RCA (single-ended) or XLR (balanced) cables.
- Sambungan Fon Kepala: Plug your headphones into either the 4.4mm balanced output or the 6.35mm single-ended output on the front panel.
- Praamp Output (Optional): If using the HP70 as a preamplifier, connect the RCA or XLR outputs to your power amppembesar atau pembesar suara aktif.
- Hidupkan kuasa: Press and hold the power button on the front panel to turn on the device.
5. Operasi
5.1 Tetapan Menu
The HP70 features a menu system for configuring various settings. Use the volume knob to navigate and select options.
Menu navigation flowchart for the AUDALYTIC HP70.
- Menu Graph: Press and hold the knob to enter the main menu.
- Short press to move to the next line.
- Rotate the knob to select.
Available settings include:
- AMP DAPATKAN: Continuously adjustable from 0 to +28dB.
- PRA OUT: Toggle preamplifier output ON or OFF.
- AMP KUASA: Togol ampkuasa penguat HIDUP atau MATI.
- SCREEN AUTO OFF: Toggle screen auto-off ON or OFF.
- KELUAR: Keluar dari menu.
5.2 Alat Kawalan Jauh
The included remote control provides convenient access to the HP70's functions.
Labeled diagram of the AUDALYTIC HP70 remote control.
- Butang Sedia: In standby mode, press to wake up the HP70 and activate the display. During normal operation, press to put the HP70 into standby mode.
- Butang Pilih Input: Press to cycle through the available input sources on the HP70.
- Four-Directional Navigation Button: When the settings menu is open: Use the Up/Down buttons to navigate through menu options. Use the Left/Right buttons to adjust the selected setting. Press the OK button to confirm certain selections.
- Butang Menu: Press to enter the main menu. Press again to exit the menu and return to the home screen.
- Butang Belakang: Returns to the home screen from any menu or submenu.
- Butang Kurang Kelantangan: Decreases the output volume when the HP70 is on the home screen.
- Butang Naik Kelantangan: Increases the output volume when the HP70 is on the home screen.
- Butang Bisukan: Toggles audio muting on and off.
Nota Penting:
- Operational range may vary depending on the angle of use.
- Obstructions between the remote and the sensor may prevent proper operation.
- Remove the batteries if the remote will not be used for an extended period (one month or longer).
- If battery leakage occurs, thoroughly clean the battery compartment and install new batteries.
- This remote may accidentally operate other infrared-controlled devices when used nearby.
6. Ciri-ciri Utama
The AUDALYTIC HP70 is engineered with advanced features for superior audio performance:
Visual summary of the AUDALYTIC HP70's main features.
- Fully Balanced Discrete Class A Amplebih hidup: Utilizes 4 pairs of power transistors for ample driving power and superior control. This discrete design allows for precise fine-tuning and offers enhanced development potential, delivering a wider range of sonic characteristics. The post-amppemberitahuan stage can be disabled, allowing the unit to function as a dedicated pure preamplebih hidup.
- Pure Preamp Kefungsian: Praamp uses two socketed LME49720 dual op-amps. praamp output can be disabled for seamless switching between headphone and speaker modes.
- Fully Balanced Input Stage: A single-ended to balanced conversion circuit ensures RCA inputs benefit from full balanced drive performance.
- Built-in Low-Noise Power Supply: Features a 30VA low-noise power supply and also accepts an external 15-18V DC power input for flexibility.
- Berbilang-stage Voltage Peraturan: Designed with multiple independent voltage regulation circuits to minimize ripple noise and reduce interference, resulting in cleaner audio reproduction.
- R-2R Relay Volume Control: Provides lossless precision adjustment with guaranteed channel matching across all 4 paths. Adjustable gain from 0 to 28dB allows matching with various headphones.
jarak dekat view daripada amppenguat dan praamp sections, highlighting the discrete components and LME49720 op-amps.
Internal components illustrating the input stage, power supply, multi-stage jilidtage regulation, and R-2R relay volume control.
7. Spesifikasi
Detailed technical specifications for the AUDALYTIC HP70:
Table summarizing the technical specifications of the AUDALYTIC HP70.
| kategori | Spesifikasi |
|---|---|
| Input analog | |
| RCA Inputs (2 sets) | Typical Input Sensitivity: 2 Vrms, Maximum Input Level: 3 Vrms, Input Impedance: 20 kΩ |
| XLR Balanced Input (1 set) | Typical Input Sensitivity: +15 dBu (5 V), Maximum Input Level: +18 dBu (6 V), Input Impedance: 10 kΩ |
| Praamp Analog Output (Rear XLR) | Frequency Response: 20-40 kHz (±0.1 dB), Signal-to-Noise Ratio (SNR): 122 dB, Channel Crosstalk: < -120 dB @ 1 kHz, THD+N: < 0.0004%, IMD: < 0.0004% |
| Output Fon Kepala | |
| 6.35mm Single-Ended Output | Impedans Keluaran: 0.1 Ω |
| 4.4mm TRS Balanced Output | Output Impedance: 0.2 Ω, Frequency Response: 20-40 kHz (±0.1 dB), Signal-to-Noise Ratio (SNR): > 120 dB, Channel Crosstalk: -118 dB @ 1 kHz, THD+N (1 kHz): < 0.0005% @ 1000 mW into 32 Ω, IMD: < 0.0005% @ 1000 mW into 32 Ω, Maximum Unclipped Output Power (Balanced): ≈ 2000 mW into 32 Ω |
| Parameter Lain | |
| Bekalan Kuasa | AC 115V / 230V, 50 / 60 Hz |
| Penggunaan Kuasa | < 15 W |
| Dimensi (W x H x D) | 220 x 50 x 170 mm (Excluding protruding parts) |
| Net Weight / Gross (with packaging) | 1.6 kg / 2.1 kg |
8. Performance Charts
8.1 Balanced Headphone Output
Maximum unclipped power (mW) versus load impedance (Ω) per channel for balanced output.
Graph illustrating the balanced headphone output power of the HP70 across various impedances.
8.2 Single-Ended Headphone Output
Maximum unclipped power (mW) versus load impedance (Ω) per channel for single-ended output.
Graph illustrating the single-ended headphone output power of the HP70 across various impedances.
9. Penyelesaian masalah
If you encounter issues with your AUDALYTIC HP70, please refer to the following common troubleshooting steps:
- Tiada Kuasa: Ensure the power cable is securely connected and the power outlet is functional. Check the fuse on the rear panel.
- Tiada Bunyi: Verify that the correct input source is selected. Check all audio cable connections. Ensure headphones are properly plugged in and not muted. Adjust the volume level.
- Bunyi Herot: Check audio cables for damage or loose connections. Ensure the audio source is not overdriving the input. Try a different audio source or headphones to isolate the problem.
- Alat Kawalan Jauh Tidak Berfungsi: Check battery orientation and charge. Ensure no obstructions are between the remote and the HP70's IR sensor.
- Audio sekejap-sekejap: Check all connections for looseness. Ensure the device is placed on a stable surface away from strong electromagnetic interference.
Jika masalah berterusan selepas mencuba langkah ini, sila hubungi sokongan pelanggan.
10. Penyelenggaraan
To ensure the longevity and optimal performance of your AUDALYTIC HP70, follow these maintenance guidelines:
- Pembersihan: Use a soft, dry cloth to clean the exterior of the unit. Avoid using abrasive cleaners, solvents, or chemical sprays, as they may damage the finish.
- Pengudaraan: Ensure the unit has adequate ventilation. Do not block the ventilation holes or place the unit in an enclosed space that restricts airflow.
- Persekitaran: Operate and store the device in a cool, dry environment, away from direct sunlight, heat sources, excessive dust, and moisture.
- Pengendalian: Kendalikan unit ini dengan berhati-hati. Elakkan daripada menjatuhkan atau menyebabkannya terkena hentaman kuat.
- Matikan: When not in use for extended periods, power off the unit and disconnect it from the power supply.
11. Waranti dan Sokongan
Thank you for choosing GUSTARD HIFI products. To safeguard your rights and interests, please read the following warranty terms carefully to ensure you receive comprehensive after-sales service.
11.1 Waranti Produk
You will enjoy a Waranti percuma 2 tahun dan lifetime maintenance from the date of purchase of your GUSTARD HIFI product.
- The manufacturer covers freight costs only from mainland China. Any freight and tax generated from overseas will be handled by the user in negotiation with the dealer.
11.2 Free Warranty Service
During the free warranty period, if the GUSTARD HP70 (or GUSTARD X30, as mentioned in the original document) fails due to component quality or manufacturing problems under normal use, it will be repaired free of charge.
11.3 Beyond the Warranty Service
Products will no longer be provided free warranty service under the following circumstances:
- The product's purchase date has exceeded the predetermined warranty period.
- The model, barcodes, and purchase date do not match the actual product and warranty card.
- Unauthorized modifications to the circuit, components, or self-repaired product without GUSTARD technician permission.
- Damage caused by irresistible natural forces.
- Damage beyond the permitted use or environmental conditions.
- Damage due to incorrect use or improper storage, including but not limited to:
- Voltage too high, burning circuits or components.
- Bumping, resulting in damage to the shell or internal components.
- Damage due to water, oil, liquid, or excessive dust.
- Product oxidation or corrosion.
- Damage beyond the warranty period, such as individual component damage or appearance issues due to human damage, or firmware modifications leading to the unit being unable to work by unauthorized users.
In cases beyond warranty, GUSTARD commits to providing maintenance services for a reasonable fee (excluding large area components or circuit boards burned beyond repair). Freight, maintenance costs, and material costs will be borne by the user.
11.4 Official User Manual Video
For a visual guide to the AUDALYTIC HP70, please watch the official user manual video:
This video provides a visual guide to the AUDALYTIC HP70, covering its features, connections, and basic operation as detailed in the user manual.