Topping A50 III Desktop Headphone Amp Black
Topping - A50 III, Desktop Headphone Amplifier, NFCA Module, Black
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Headphone Amplifier NFCA
Topping - A50 III
(Black)
'Back and better than ever'With its A50 III headphone amplifier, Topping unveils a compact, high-performance device. It maintains the features of its predecessor, with improvements such as a 3-level gain control and a balanced input on a 6.35mm TRS jack. Its amplifier circuit incorporates an NCFA (Nested Feedback Composite Amplifier) module for exceptional performance.
Moreover, the A50 III has a maximum output power of 2x 3500mW, a comfortable reserve that enables it to drive many of the headphones available on the market, including models with up to 300 ohms impedance without difficulty.
at a glance
• NFCA module for greater sound quality
• CNC unibody design for durability and electromagnetic shielding
• Multiple input and output options for versatile connectivity
• Three gain settings to accommodate all types of headphones
• Powerful output of 3500mW x2 ensures wide compatibility
• 12V trigger for synchronized operation with other devices
• Low distortion for clear, detailed sound
what's in the box?
• Topping - A50 III
• 6.35 to 3.5mm adapter
• 15V DC adapter
• Product information card
Ultra-High Performance NFCA Module
Ultra High Gain Feedback technologyThe A50 III incorporates a NFCA (Nested Feedback Composite Amplifier) module with hybrid current/voltage architecture combined with UHGF (Ultra High Gain Feedback) technology. This gives the A50 III excellent AC and DC performance. High output current enables the amplifier to accompany all types of headphones.
An ultra-low noise level of 0.3µV, a dynamic range of 144dB and the absence of background noise also enable the A50 III to power the most sensitive IEMs with ease.
Essential Connectors
the perfect ally for the D50 III DACThe rear panel of the A50 III features an RCA input and a balanced stereo input on a 6.35mm TRS connector. Added to this is a 12V trigger enabling it to be paired with other devices for simultaneous ignition. Its connectivity makes it the perfect ally for Topping's D50 III DAC.
a robust aluminum chassisThe A50 III features a CNC-machined aluminum chassis for aesthetic appeal and durability. This aluminum casing also helps dissipate the heat efficiently from the A50 III's amplifier stage.
The Tech Spec
| Features | Specification | THD+N @1kHz (A-wt) | <0.00006% |
|---|---|
| THD @20-20kHz 90kBW | <0.0001% |
| SNR @Max Out 1kHz A-wt | 144dB |
| Dynamic range @1kHz A-wt | 144dB |
| Frequency response | 20Hz - 40kHz (±0.1dB) / 10Hz - 100kHz (±0.5dB) |
| Output level | Low gain: 21Vpp Medium gain: 21Vpp High gain: 21Vpp |
| AP measured noise level @A-wt | Low gain: <0.7uVrms Medium gain: <0.7uVrms High gain: <1.1uVrms |
| Actual noise level @A-wt | Low gain: <0.3uVrms Medium gain: <0.3uVrms High gain: <1.0uVrms |
| Input sensitivity | Low gain: 9.2Vrms Medium gain: 8Vrms High gain: 1.9Vrms |
| Gain | Low gain: -12dB Medium gain: 0dB High gain: 11.7dB |
| Output impedance | <0.2Ω |
| Input impedance | Low gain: 2kΩ Medium gain: 2kΩ High gain: 2kΩ |
| Load impedance | >8Ω |
