1. Sikkerhedsoplysninger
Please read and understand all safety instructions before operating the Topping A50 III. Keep this manual for future reference.
- Udsæt ikke enheden for regn, fugt eller ekstreme temperaturer.
- Undgå at placere enheden i nærheden af varmekilder eller i direkte sollys.
- Sørg for korrekt ventilation for at forhindre overophedning.
- Brug kun den medfølgende strømadapter.
- Forsøg ikke at skille enheden ad eller ændre den. Overlad al service til kvalificeret personale.
- Undgå at lytte ved høje lydstyrker i længere perioder for at forhindre høreskader.
2. Pakkens indhold
Bekræft at alle varer er til stede i pakken:
- Topping A50 III hovedtelefoner Amplivligere
- Strømadapter
- Brugervejledning (dette dokument)
3. Produktet er slutview
The Topping A50 III is a high-performance headphone amplifier designed for desktop audio setups. It features advanced NFCA (Nested Feedback Composite Amplifier) modules, offering exceptional audio fidelity and powerful output capabilities for a wide range of headphones.
4. Nøglefunktioner
- Ultra-high Performance NFCA Modules: Utilizes NFCA (Nested Feedback Composite Amplifier) modules with Voltage Current hybrid feedback architecture and UHGF (UltraHigh Gain Feedback) technology for excellent DC and AC performance.
- High-Output Current Drive: Capable of driving low-impedance headphones with ease.
- Full Aluminum Case: Unique integrated design from solid aluminum bricks, providing excellent electromagnetic shielding, smooth appearance, and superior strength.
- Alsidig anvendelse: Features 6.35mm single-ended and 4.4mm balanced headphone jacks, as well as RCA single-ended and TRS balanced inputs for various combinations.
- Wide Headphone Adaptation: Three gain selections (Low, Medium, High) to suit all types of headphones, including sensitive IEMs with a low noise floor of 0.3uVrms.
- Kraftig output: Delivers up to 3500mW x 2, ensuring most headphones maximize their performance with a low distortion rate (<0.1%) even at high power.
- 12V Trigger Function: Can be switched on and off with a compatible device (e.g., Topping D50 III) via a 12V Trigger connection.
5. Opsætning
5.1 Tilslutning af strøm
- Ensure the A50 III is powered off.
- Connect the provided power adapter to the DC 15V input on the rear panel of the A50 III.
- Sæt strømadapteren i en passende stikkontakt.
5.2 Tilslutning af lydkilder
The A50 III supports both single-ended (RCA) and balanced (TRS) audio inputs.
- RCA-indgang: Connect your audio source (e.g., DAC, CD player) to the RCA L/R input jacks on the rear panel using RCA cables.
- TRS balanceret indgang: Connect your audio source to the TRS L/R input jacks on the rear panel using 6.35mm TRS cables.
5.3 Tilslutning af hovedtelefoner
The A50 III offers two headphone output options on the front panel:
- 6.35mm Single-Ended: Plug your headphones into the 6.35mm (1/4 inch) headphone jack.
- 4.4mm Balanced: For balanced headphones, use the 4.4mm balanced headphone jack.
5.4 12V triggertilslutning (valgfrit)
If you have a compatible device with a 12V Trigger output (e.g., Topping D50 III), you can connect it to the 12V Trigger input on the A50 III's rear panel. This allows the A50 III to power on/off synchronously with the connected device.
6. Betjening
6.1 Tænd/sluk
Press the power button on the front panel to turn the A50 III on or off. The LED indicator will illuminate when the device is powered on.
6.2 Lydstyrkekontrol
Rotate the large knob on the front panel clockwise to increase volume and counter-clockwise to decrease volume. Start with a low volume setting before playing audio.
6.3 Gain Selection
The A50 III features three gain settings (L: Low, M: Medium, H: High) to match the sensitivity of your headphones. Use the gain switch on the front panel to select the appropriate setting. Higher gain provides more power for demanding headphones, while lower gain is suitable for sensitive IEMs to avoid noise and excessive volume.
6.4 Indgangsvalg
The A50 III automatically detects the active input. If multiple inputs are connected, ensure only one source is playing at a time or switch between them using your source device.
7. Forbindelse
The A50 III provides comprehensive connectivity options:
7.1 Front Panel Outputs
- 6.35 mm hovedtelefonudgang: Standard single-ended headphone jack.
- 4.4 mm balanceret hovedtelefonudgang: Til balancerede hovedtelefontilslutninger.
7.2 Rear Panel Inputs
- RCA L/R Input: Single-ended analog audio input.
- TRS L/R Input: Balanceret analog lydindgang.
- 12V triggerindgang: For synchronous power control with compatible devices.
8. Specifikationer
Detailed technical specifications for the Topping A50 III:
| Parameter | SE IN/SE UD | BAL IN/SE OUT | SE IN/BAL OUT | BAL IN/BAL OUT |
|---|---|---|---|---|
| THD+N @1kHz A-wt | <0.00006% (500mW@32Ω) <0.00006% (80mW@300Ω) | <0.00007% (500mW@32Ω) <0.00006% (80mW@300Ω) | <0.00007% (2000mW@32Ω) <0.00006% (320mW@300Ω) | <0.00012% (2000mW@32Ω) <0.00008% (320mW@300Ω) |
| THD @20-20kHz 90kBW | <0.0002% (500mW@32Ω) <0.0001% (80mW@300Ω) | <0.0005% (500mW@32Ω) <0.0003% (80mW@300Ω) | <0.0002% (2000mW@32Ω) <0.0001% (320mW@300Ω) | <0.0002% (2000mW@32Ω) <0.0001% (320mW@300Ω) |
| SNR @MAX OUT 1kHz A-wt | 141dB | 136dB | 144dB | 137dB |
| Dynamisk område @1kHz A-wt | 141dB | 136dB | 144dB | 137dB |
| Frekvensrespons | 20Hz-40kHz (±0.05dB) 10Hz-100kHz (±0.1dB) | 20Hz-40kHz (±0.1dB) 10Hz-100kHz (±0.5dB) | 20Hz-40kHz (±0.05dB) 10Hz-100kHz (±0.1dB) | 20Hz-40kHz (±0.05dB) 10Hz-100kHz (±0.1dB) |
| Udgangsniveau | 21Vpp @G=L/M/H | 21Vpp @G=L/M/H | 18Vpp @G=L 42Vpp @G=M/H | 18Vpp @G=L 42Vpp @G=M/H |
| AP Measured Noise Level @A-wt | <0.7uVrms @G=L/M <1.2uVrms @G=H | <0.7uVrms @G=L/M <1.1uVrms @G=H | <0.9uVrms @G=L/M <2.1uVrms @G=H | <0.9uVrms @G=L/M <2.1uVrms @G=H |
| Actual Noise Level* @A-wt | <0.3uVrms @G=L/M <1.0uVrms @G=H | <0.3uVrms @G=L/M <1.0uVrms @G=H | <0.7uVrms @G=L/M <2.0uVrms @G=H | <0.7uVrms @G=L/M <2.0uVrms @G=H |
| Indgangsfølsomhed | 13Vrms @G=L 8.0Vrms @G=M 1.9 Vrms @G=H | 9.2Vrms @G=L 8.0Vrms @G=M 1.9 Vrms @G=H | 13Vrms @G=L 7.8Vrms @G=M 1.9 Vrms @G=H | 9.2Vrms @G=L 7.8Vrms @G=M 1.9 Vrms @G=H |
| Gevinst | -12.0dB @G=L 0dB @G=M 11.9dB @G=H | -12.0dB @G=L 0dB @G=M 11.7dB @G=H | -6.0dB @G=L 6.0dB @G=M 17.9dB @G=H | -6.0dB @G=L 6.0dB @G=M 17.7dB @G=H |
| Udgangsimpedans | <0.1Ω | <0.1Ω | <0.2Ω | <0.2Ω |
| Indgangsimpedans | 10.0kΩ @G=L 2.5kΩ @G=M/H | 2.0kΩ @G=L/M/H | 10.0kΩ @G=L 2.5kΩ @G=M/H | 2.0kΩ @G=L/M/H |
| Output Power (THD+N<0.1%) | 2150mWx2 @16Ω 1400mW x 2@32Ω 190mW x 2@300Ω 100mW x 2@600Ω | 3500mW x 2 @32Ω 2700mW x 2 @64Ω 760mW x 2@300Ω 395mW x 2@600Ω | ||
| Belastningsimpedans | > 8Ω | |||
| Pakkedimensioner | 9.57 x 7.36 x 2.44 tommer | |||
| Varens vægt | 2.09 pund (0.95 kilo) | |||
| Farve | Sølv | |||
| Forbindelsesteknologi | RCA | |||
| Controller type | Knap | |||
| Kompatible enheder | Højttaler | |||
| Lydudgangstilstand | Stereoanlæg | |||
| Surround Sound Kanalkonfiguration | 2.0 | |||
*Note: The actual noise level is obtained by boosting the noise of A50 III by 40dB using a low noise amplifier foran APx555B og derefter dividere den målte støj med 100 gange.
9. Fejlfinding
If you encounter issues with your Topping A50 III, refer to the following common troubleshooting steps:
- Ingen lyd:
- Check all cable connections (power, input, headphones).
- Ensure the A50 III is powered on and the volume is not at minimum.
- Verify the audio source is playing and its volume is adequate.
- Confirm the correct input is selected on your source device.
- Forvrænget lyd:
- Reduce the volume on both the A50 III and your audio source.
- Check if the gain setting is too high for your headphones. Try a lower gain setting.
- Undersøg lydkabler for skader eller løse forbindelser.
- Enheden tænder ikke:
- Ensure the power adapter is securely connected to both the A50 III and the wall outlet.
- Test stikkontakten med en anden enhed for at bekræfte, at den har strøm.
- If using the 12V Trigger, ensure the connected device is powered on and functioning correctly.
10. Vedligeholdelse
To ensure the longevity and optimal performance of your A50 III:
- Rensning: Brug en blød, tør klud til at rengøre ydersiden af enheden. Undgå at bruge skrappe kemikalier eller slibende materialer.
- Opbevaring: When not in use for extended periods, store the device in a cool, dry place away from direct sunlight and dust.
- Håndtering: Håndter enheden forsigtigt. Undgå at tabe den eller udsætte den for hårde stød.
11. Garanti og support
The Topping A50 III is covered by a manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Topping webwebsted. Gem venligst din købsbevis til garantikrav.
