Zavedení
This manual provides detailed instructions for the safe and efficient use of your Topping L50 NFCA Headphone Amplifier. Please read this manual thoroughly before operating the device and retain it for future reference.
The Topping L50 is a high-performance headphone amplifier featuring a redesigned NFCA (Nested Feedback Composite Amplifier) circuit. It offers ultra-low noise and distortion, multiple gain settings, and a convenient bypass output function.
Bezpečnostní informace
- Napájení: Používejte pouze specifikovaný napájecí adaptér. Nesprávná hlasitosttage can damage the device and pose a fire hazard.
- Větrání: Zajistěte dostatečné větrání kolem ampNeblokujte větrací otvory.
- vlhkost: Chraňte zařízení před vodou, vlhkostí a prostředím s vysokou vlhkostí.
- Teplo: Neumísťujte zařízení do blízkosti zdrojů tepla, jako jsou radiátory, tepelné regulátory, kamna nebo jiná zařízení produkující teplo.
- Čištění: Clean only with a dry cloth. Do not use liquid cleaners or aerosol sprays.
- Servis: Nepokoušejte se tento výrobek opravit sami. Veškerý servis svěřte kvalifikovanému servisnímu personálu.
- Ochrana sluchu: Vyhněte se dlouhodobému poslechu při vysoké hlasitosti, abyste předešli poškození sluchu.
Konec produktuview
The Topping L50 is designed to deliver exceptional audio performance for headphones. Key features include:
- NFCA Circuit: Utilizes a redesigned NFCA (Nested Feedback Composite Amplifier) circuit for ultra-low noise and distortion.
- Vysoký výstupní výkon: Provides significant power output to drive a wide range of headphones, including high-impedance models.
- Three Gain Settings: Adjustable gain to perfectly match various headphone sensitivities, from sensitive IEMs to demanding over-ear headphones.
- Bypass výstup: Features a pass-through function that allows the input signal to be directly outputted to RCA or TRS when the unit is powered off, useful for connecting to active speakers or monitor speakers with a DAC's pre-amp funkce.
Key Performance Metrics
Image: Key performance metrics of the Topping L50, including Hi-Res Audio certification, 3-step gain settings, NFCA modules, THD+N, DNR, Noise, Output Impedance, and Maximum Output Power.
Přední a zadní panel
Image: Front panel showing headphone outputs (6.35mm, 4-pin XLR), gain switch, and volume knob. Rear panel showing RCA and TRS inputs, RCA and TRS pass-through outputs, and power input.
Nastavení
- Umístění: Place the L50 on a stable, flat surface, ensuring adequate ventilation.
- Připojení zdroje zvuku: Connect your audio source (e.g., DAC, pre-amplifier) to the L50's input jacks. The L50 supports both RCA and TRS inputs.
- For RCA input, use high-quality RCA cables to connect the left and right channels from your source to the L50's RCA input ports.
- For TRS input, use balanced TRS cables to connect the left and right channels from your source to the L50's TRS input ports.
- Připojení sluchátek: Plug your headphones into the appropriate output jack on the front panel (6.35mm or 4-pin XLR).
- Připojte napájení: Connect the provided power adapter to the 15VAC power input on the rear panel, then plug the adapter into a wall outlet.
- Optional: Connect Pass-through Output: If you wish to use the pass-through function, connect the L50's RCA or TRS pass-through outputs to active speakers or another amplifier. This output is active when the L50 is powered off, allowing the input signal to bypass the ampživější.
Image: Diagram illustrating the input pass-through function for RCA and TRS connections. When the L50 is powered off, the input signal is directly routed to the output. When powered on, it switches to the headphone output.
Návod k obsluze
- Zapnutí/vypnutí: The L50 typically powers on when connected to the power supply. Some models may have a power switch. Refer to the front panel for specific controls.
- Ovládání hlasitosti: Rotate the volume knob on the front panel to adjust the listening level. Start with a low volume and gradually increase it to a comfortable level.
- Nastavení zesílení: The L50 features three gain options (Low, Medium, High) to optimize performance for different headphones.
Image: Diagram showing the three gain options (H, M, L) on the Topping L50. This feature allows matching the amplifier's output to the sensitivity of various headphones, from low-sensitivity over-ears to high-sensitivity IEMs, ensuring minimal background noise.
- Použití Nízká (L) gain for highly sensitive headphones or IEMs to prevent excessive volume and background noise.
- Použití Střední (M) gain for most standard headphones.
- Použití vysoká (H) gain for demanding, low-sensitivity, or high-impedance headphones that require more power.
- Výběr vstupu: If your L50 has multiple input options (e.g., RCA, TRS), ensure the correct input is selected via the input selector switch, if present.
Údržba
- Čištění: Gently wipe the exterior of the amplifier with a soft, dry, lint-free cloth. Do not use abrasive cleaners, solvents, or chemical sprays.
- Prach: Keep the device free from dust accumulation. Use a soft brush or compressed air to clean vents if necessary.
- Skladování: Pokud zařízení skladujete delší dobu, odpojte jej od napájení a uložte jej na chladném a suchém místě.
Odstraňování problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Žádný zvuk ze sluchátek |
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| Zkreslený nebo špatná kvalita zvuku |
|
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| Background noise or hum |
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Specifikace
The following table details the technical specifications of the Topping L50 NFCA Headphone Ampživější.
Image: Detailed technical specifications for the Topping L50, including THD+N, SNR, Dynamic Range, Frequency Response, Output Level, Noise Level, Channel Crosstalk, Input Sensitivity, Gain, Output Impedance, and Output Power for both SE IN and BAL IN.
| Funkce | Specifikace |
|---|---|
| Model | L50 |
| Výrobce | POLEVA |
| svtage | 20 voltů |
| Počet kanálů | 2 |
| Výstupní výkon (max.) | 3500 mW @ 16Ω, 540 mW @ 300Ω |
| Materiál | Plast nebo hliník |
| Rozměry (balení) | 11.1 x 7.99 x 2.99 palce |
| Hmotnost položky | 3.04 libry |
| Barva (tato varianta) | Černý |
| THD+N (A-wt) | <0.00006% @ 780mW (32Ω) |
| DNR (A-wt) | 145 dB |
| Hlučnost (A-wt) | <0.3uVrms |
| Výstupní impedance | <0.1Ω |
Note: Specifications are subject to change without notice. For the most accurate and up-to-date information, please refer to the official Topping webmísto.
Záruka a podpora
Topping products are typically covered by a limited warranty. Please refer to the warranty card included with your product or visit the official Topping webpodrobné záruční podmínky naleznete na webu.
For technical support, service, or inquiries, please contact your authorized Topping dealer or visit the official Topping support page. When contacting support, please have your product model (L50) and purchase information ready.
Oficiální Webmísto: www.tpdz.net
