1. Kupu Whakataki
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. Ihirangi mokete
Tena koa tirohia te kete mo nga mea e whai ake nei:
- AUDALYTIC HP70 Main Unit
- Waea Hiko
- Mana Mamao
- Kaari Raati
Diagram illustrating the items included in the AUDALYTIC HP70 package.
3. Hua Neke Atuview
3.1 Paewhiri Mua
The front panel provides access to essential controls and headphone outputs.
Labeled diagram of the AUDALYTIC HP70 front panel.
- Pātene Hiko: Short press to mute/unmute; press and hold to switch between standby and on.
- Whakaatu Mata: Shows volume level and function menus.
- Matapihi Rōrahi: Rotate to adjust volume; short press to switch input source; press and hold to enter the menu.
- Tihakihihi 4.4mm balanced output.
- Tihakihihi 6.35mm single-ended output.
3.2 Paewhiri Whakamuri
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): For balanced audio sources.
- RCA Single-Ended Inputs (L1/R1, L2/R2): Two sets for single-ended audio sources.
- RCA Single-Ended Outputs (L Out/R Out): Hei hono atu ki ētahi atu taputapu oro.
- XLR Balanced Outputs (Left/Right): For balanced output to other audio equipment.
- DC Input 15-18V: Mō te tuku hiko o waho.
- Whakauru Hiko: Standard AC power input. Switching power supply requires no manual voltage whiriwhiringa.
- Momonga Ko te hiko mo te whakamarumaru.
4. Tatūnga
- Hononga Hiko: 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.
- Hononga Puna Ororongo: 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.
- Hononga Puoro: Plug your headphones into either the 4.4mm balanced output or the 6.35mm single-ended output on the front panel.
- Preamp Putanga (Whiringa): If using the HP70 as a preamplifier, connect the RCA or XLR outputs to your power ampkaikorero kaha ranei.
- Whakahiko: Press and hold the power button on the front panel to turn on the device.
5. Mahi
5.1 Tautuhinga Tahua
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 MAU: Continuously adjustable from 0 to +28dB.
- Tuhinga o mua: Toggle preamplifier output ON or OFF.
- AMP MANA: Takahuri ampte mana whakaahuru ON, OFF ranei.
- SCREEN AUTO OFF: Toggle screen auto-off ON or OFF.
- EXIT: Puta atu i te tahua.
5.2 Mana Mamao
The included remote control provides convenient access to the HP70's functions.
Labeled diagram of the AUDALYTIC HP70 remote control.
- Pene Whakatika: In standby mode, press to wake up the HP70 and activate the display. During normal operation, press to put the HP70 into standby mode.
- Pato Pato Whakauru: 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.
- Patene Tahua: Press to enter the main menu. Press again to exit the menu and return to the home screen.
- Pātene Whakamuri: Returns to the home screen from any menu or submenu.
- Pātene Whakararo Rōrahi: Decreases the output volume when the HP70 is on the home screen.
- Pātene Rōrahi ake: Increases the output volume when the HP70 is on the home screen.
- Patene Whakakore: Toggles audio muting on and off.
Tuhipoka Nui:
- 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. Nga waahanga matua
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 AmpKaiwhakaora: 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-ampwhakamaramatanga stage can be disabled, allowing the unit to function as a dedicated pure preampkaikawe
- Pure Preamp Taumahinga: Tuhinga o muaamp uses two socketed LME49720 dual op-amps. Ko te muaamp 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.
- Maha-stage Voltage Ture: 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.
Kati-ake view o nga ampkaiwhakarewa me muaamp sections, highlighting the discrete components and LME49720 op-amps.
Internal components illustrating the input stage, power supply, multi-stage voltage regulation, and R-2R relay volume control.
7. Whakatakotoranga
Detailed technical specifications for the AUDALYTIC HP70:
Table summarizing the technical specifications of the AUDALYTIC HP70.
| Kāwai | Whakatakotoranga |
|---|---|
| Nga Input Pouakauru | |
| 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 |
| Preamp 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% |
| Putanga Puoro | |
| 6.35mm Single-Ended Output | Impedance Putanga: 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 |
| Ētahi atu Tawhā | |
| Tuku Hiko | AC 115V / 230V, 50 / 60 Hz |
| Whakamahi Hiko | <15 W |
| Ahu (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. Te Raru
If you encounter issues with your AUDALYTIC HP70, please refer to the following common troubleshooting steps:
- Kore Mana: Ensure the power cable is securely connected and the power outlet is functional. Check the fuse on the rear panel.
- Kore Oro: 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.
- Oro korikori: 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.
- Mana Mamao Kaore i te Mahi: Check battery orientation and charge. Ensure no obstructions are between the remote and the HP70's IR sensor.
- Ororongo Waahi: Check all connections for looseness. Ensure the device is placed on a stable surface away from strong electromagnetic interference.
Mena kei te haere tonu te raru i muri i te whakamatau i enei mahi, me waea atu ki te tautoko a te kaihoko.
10. Tiaki
To ensure the longevity and optimal performance of your AUDALYTIC HP70, follow these maintenance guidelines:
- Te horoi: Whakamahia he kakahu ngohengohe, maroke hei horoi i te taha o waho o te waeine. Kaua e whakamahi i ngā kaihoroi whakakoi, ngā whakarewa, ngā rehu matū rānei, nā te mea ka kino pea te āhua o te whakaotinga.
- Whakahau: Ensure the unit has adequate ventilation. Do not block the ventilation holes or place the unit in an enclosed space that restricts airflow.
- Taiao: Operate and store the device in a cool, dry environment, away from direct sunlight, heat sources, excessive dust, and moisture.
- Te whakahaere: Kia tūpato te whakahaere i te waeine. Kaua e taka, e tukua rānei kia pāngia e te kaha.
- Weto Whakakore: When not in use for extended periods, power off the unit and disconnect it from the power supply.
11. Pūtāhui me te Tautoko
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 Hua Whakatau
You will enjoy a 2-tau kore utu whakamana a 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.
