The Topping A900 is a new flagship headphone amplifier designed with a focus on pure sound and high output power. It is built on a fully balanced architecture with the patented T’ang-ku-la circuit and provides exceptionally low distortion and high dynamic range. The model supports operation in preamplifier mode and is equipped with a wide range of connectors for connecting headphones and external equipment.
The front panel includes six outputs, covering all common formats: from 6.35 mm and 4.4 mm to XLR and dual 3-pin. On the rear side are Neutrik combo inputs, allowing three independent balanced channels. The built-in display shows the signal level, spectrum, modes and other parameters, and the encoder with customizable buttons and interface makes it easy to operate. The amplifier offers nine color options for the interface and precise volume control in 0.5 dB steps based on a relay system.
The device is not only suitable for headphones of any impedance, but can also be used in the system as a preamplifier with high-precision signal transmission and compatibility with power amplifiers. With an output power of up to 22 W at 16 ohms and a unique combination of parameters, the A900 is aimed at both studio and home use.
Topping A900 Features:
- Preamplifier :
- THD+N (1 kHz A-wt) preamp: <0.000055%
- THD (20-20 kHz, 90 kHz BW): <0.00003%
- Preamp SNR: 151 dB
- Preamplifier dynamic range: 151 dB
- Preamplifier output level: 60 Vpp
- Preamplifier output impedance: 100 Ohm
- Headphone amplifier :
- THD+N (1 kHz A-wt, balanced headphones): <0.000060% at 500 mW (32 Ohms) / <0.000055% at 80 mW (300 Ohms)
- Dynamic range (balanced output): 151 dB
- Output level (balanced): 60 Vpp
- Channel penetration (Crosstalk): -153 dB
- Output power (balanced): 22000 mW x2 @16 ohms / 14000 mW x2 @32 ohms / 7000 mW x2 @64 ohms / 3000 mW x2 @300 ohms / 750 mW x2 @600 ohms
- Input Sensitivity: 22.0 Vrms @G=L / 7.0 Vrms @G=M / 2.1 Vrms @G=H
- Noise level (actual): <0.3 Vrms @G=L / <1.0 Vrms @G=M / <2.3 Vrms @G=H
- Gain control: -0.1 dB @G=L / +10.3 dB @G=M / +19.8 dB @G=H
- Output impedance: <0.1 Ohm
- General :
- Outputs: 6.35mm / 4.4mm / 4-pin XLR / pair 3-pin XLR
- Inputs: Three combo XLRs from Neutrik
- Control: Rotary encoder with buttons / 2-inch display / 9 color themes
- Additional: preamplifier mode / relay volume control / 0.5 dB step / control button customization
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