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TOPPING A50 Balanced Headphone Amplifier Black
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Accessories for this product
Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
This model is replaced by the new version : Topping A50S
Topping A50
Balanced Heaphone Amplifier Black
The Topping A50 is an efficient and affordable sedentary headphone amplifier. Its careful design makes it an ideal ally for any audiophile wishing to enjoy a rich and clear headphone listening experience. The amplifier is Hi-Res certified, a label that guarantees a very good sound quality.
Balanced / Single-ended connectivity
For its connectivity, the A50 is both simple and very efficient. It integrates a single stereo RCA input but has 3 headphone outputs, one of which is balanced on a 2.5mm jack connector. A stereo RCA line output is also available on the back of the unit.
Aluminium case
The components of the A50 Topping are hidden under a beautiful and robust CNC machined Aluminium housing. It is also designed to effectively dissipate the heat released by the power supply and PDOs.
Digital volume
The A50 scans the position of the volume knob and transmits the data to the JRC1195 controller for a precise adjustment of the volume level. This chip also provides a perfect volume balance between the left and right channels.
AOP
The amplifier includes a pair of LME49720 PDOs mounted on a DIP8 bracket. It is therefore possible to easily replace these PDOs to adapt the sound reproduction to your listening experience.
Regulated power supply
The power supply circuit of the A50 is stabilized by low noise TI TPS7A33/47 linear regulators. These high-performance chips provide clean and stable power to all A50 circuits.
A50 Headphone amplifier + P50 Power supply + D50s DAC Association
The Topping A50 completes the range also composed of the P50 and D50s. The combination of these products is ideal and allows you to benefit from a complete and efficient system. The D50s DAC allows efficient digital-to-analog conversion, supports high-resolution files and allows Bluetooth transmission. The ultra-low noise regulated linear power supply P50 will provide the A50 and D50s with an extremely clean power supply, allowing them to reach their full potential.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Headphone amplifier |
| Input | 1x Stereo RCA |
| Outputs | 1x Stereo RCA 1x Single-ended Jack 3.5mm headphone output 1x Single-ended Jack 6.35mm headphone output 1x Balanced Jack 2.5mm headphone output |
| THD+N : Single-ended output (@ A-Weighting) | < 0.0006% @ 1kHz, 100mW 32Ω < 0.0015% @ 20Hz - 20kHz, 100mW 32Ω < 0.0006% @ 1kHz, 12mW 300Ω < 0.0006% @ 20Hz - 20kHz, 12mW 300Ω |
| THD+N : Balanced output (@ A-Weighting) | < 0.0016 @ 1kHz, 100mW 32Ω < 0.0022% @ 20Hz - 20kHz, 100mW 32Ω < 0.0004% @ 1kHz, 50mW 300Ω < 0.0004% @ 20Hz - 20kHz, 50mW 300Ω |
| SNR (@ A-Weighting) | 123dB @ 1kHz |
| Dynamic range (@ A-Weighting) | 123dB @ 1kHz |
| Frequency response | Gain 0dB : 20Hz - 20kHz ±0.6dB Gain 9dB : 20Hz - 40kHz ±0.6dB |
| Output level | Single-ended, Gain 0dB : 10.6Vpp Single-ended, Gain 9dB : 20Vpp Balanced, Gain 0dB : 21.4Vpp Balanced, Gain 9dB : 40Vpp |
| Noise (@ A-Weighting) | Single-ended, Gain 0dB : < 3µVrms Single-ended, Gain 9dB : < 5µVrms Balanced, Gain 0dB : < 5µVrms Balanced, Gain 9dB : < 10µVrms |
| Output impedance | Single-ended : < 4.7Ω Balanced : < 9.4Ω |
| Output power | Single-ended, Gain 0dB : 2x 1110mW @ 32Ω, THD+N < 1% Single-ended, Gain 9dB : 2x 160mW @ 300Ω, THD+N < 1% Balanced, Gain 0dB : 2x 2200mW @ 64Ω, THD+N < 1% Balanced, Gain 9dB : 2x 640mW @ 300Ω, THD+N < 1% |
| Compatible headphone impedance | Single-ended : 16-300Ω Balanced : 16-600Ω |
| General | |
|---|---|
| Case material | Aluminium |
| Dimensions | 11 x 12.3 x 2.6cm |
| Package | 1x Topping A50 1x Power supply |
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