Après un peu plus d'un an de service, aucun souci, ampli suffisamment puissant avec des enceintes de rendement moyen et une pièce d'écoute de 20m2, belle surprise pour mon premier ampli classe D.
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Amplifier Merus MA12070 Class D NFCA XMOS Bluetooth aptX HD 2x55W 4Ω 32bit 384kHz DSD256
The Topping MX5 is a combo amplifier and headphone amplifier with integrated DAC ESS ES9018. Particularly versatile and powerful, it benefits from a Bluetooth reception thanks to a QCC3031 chip, an efficient USB XMOS XU208 interface and a complete connectivity.
MX5
MX3
USB Chip
8 Core XMOS
SA9023A
Supported sampling rates (USB input)
PCM 32bit 384kHz / DSD256
PCM 24bit 96kHz
Bluetooth codecs
aptX / aptX LL / aptX-HD
aptX not supported
Headphone amplifier power @ 32 Ohm
1600mW
257mW
Headphone amplifier power @ 300 Ohm
260mW
42mW
SNR (headphone amplifier)
128dB
103dB
Amplifier power @ 4 Ohm THD+N < 10%
70W
40W
SNR (amplifier)
110dB
91dB
THD+N @ 8 Ohm 20W
< 0.002%
< 0.05%
Embedding an Infineon Merus MA12070 Class D amplifier chip, the MX5 is capable of delivering a power of 2x55W under 4Ω (1% THD). Moreover, it offers a beautiful precision and richness of sound.
The MX5's headphone amplifier stage is based on a specially optimized NFCA circuit that ensures very low noise and distortion. It can be used with both sensitive headphones and high-impedance headphones, while providing a faithful reproduction of the original signal.
Topping's MX5 benefits from a complete range of connectors, ensuring a wide compatibility with most systems. It features optical, coaxial, USB-B, single-ended stereo RCA, balanced stereo Jack 6.35mm TRS and even Bluetooth wireless connectivity supporting aptX / aptX-HD codecs.
In addition, the amplifier supports the automatic on/off function. When a valid signal is detected, the amplifier automatically turns on, and conversely, turns itself off when no signal is received within a defined time period. In the case of analog signals, the MX5 offers three sensitivity levels to ensure accurate detection.
The MX5 allows you to adjust the bass and treble levels from -10dB to +10dB. It can thus adapt to the specificities of each audio system and to your listening.
The Topping MX5 also features two gain levels for the amplifier and headphone amplifier sections to accommodate different input signals.
Specifications | |
---|---|
Product type | Amplifier Headphone amplifier |
Amplification type | Class D |
Puce d'amplification | Infineon Merus MA12070 |
Inputs | Bluetooth 1x USB-B 1x Optical 1x Coaxial 1x Single-ended stereo RCA 1x Balanced stereo Jack 6.35mm TRS |
Outputs | Speaker terminals 1x Jack 6.35mm headphone output |
USB interface | XMOS XU208Headphone amplifier specifications |
USB / Optical / Coaxial | Single-ended | Balanced | |
THD+N @ 1kHz (A-Weighting) | < 0.003% @ 750mW 32Ω | < 0.003% @ 750mW 32Ω | < 0.003% @ 750mW 32Ω |
< 0.0008% @ 80mW 300Ω | < 0.002% @ 80mW 300Ω | < 0.002% @ 80mW 300Ω | |
SNR @ Max out, 1kHz, A-Weighting | 120dB | 128dB | 127dB |
Dynamic range @ 1kHz, A-Weighting | 120dB | 128dB | 127dB |
Frequency response | 20Hz-20kHz (+0.1dB/-0.3dB) | ||
20Hz-40kHz (+0.1dB/-1.0dB) | |||
Output level | 5.6Vpp @ G=L | 10.6Vpp @ G=L | 10.6Vpp @ G=L |
24.6Vpp @ G=H | 24.6Vpp @ G=H | 24.6Vpp @ G=H | |
Noise @ A-Weighting | < 2µVrms @ G=L | < 2µVrms @ G=L | < 2µVrms @ G=L |
< 10µVrms @ G=H | < 10µVrms @ G=H | < 10µVrms @ G=H | |
Channel crosstalk @ 1kHz | -93dB | -93dB | -93dB |
Input sensitivity | 0dBFS @ G=L | 3.9Vrms @ G=L | 7.8Vrms @ G=L |
-1dBFs @ G=H | 1.8Vrms @ G=H | 3.6Vrms @ G=H | |
Gain | 6dB(Vrms/FS) @ G=L | -0.2dB @ G=L | -6.1dB @ G=L |
19dB (Vrms/FS) @ G=H | 13.6dB @ G=H | 7.6dB @ G=H | |
Output impedance | < 0.2Ω | ||
Power | 2x 1600mW @ 32Ω, THD+N < 0.1% | ||
2x 1000mW @ 64Ω, THD+N < 0.1% | |||
2x 260mW @ 300Ω, THD+N < 0.1% | |||
Load impedance | > 8Ω |
Amplifier specifications | |||
---|---|---|---|
USB / Optical / Coaxial | Single-ended | Balanced | |
THD+N @ 1kHz (A-Weighting) | < 0.005% @ 5W 4Ω | < 0.005% @ 5mW 4Ω | < 0.005% @ 5mW 4Ω |
< 0.004% @ 5W 8Ω | < 0.004% @ 5W 8Ω | < 0.004% @ 5W 8Ω | |
SNR @ Max out, 1kHz, A-Weighting | 110dB | 110dB | 110dB |
Dynamic range @ 1kHz, A-Weighting | 110dB | 110dB | 110dB |
Frequency response | 20Hz-20kHz (+0.1dB/-0.5dB) | ||
20Hz-40kHz (+0.1dB/-1.5dB) | |||
Output noise | 42Vpp @ RL=4Ω | 42Vpp @ RL=4Ω | 42Vpp @ RL=4Ω |
46Vpp @ RL=8Ω | 46Vpp @ RL=8Ω | 46Vpp @ RL=8Ω | |
Noise @ A-Weighting | < 60µVrms @ G=L | < 60µVrms @ G=L | < 60µVrms @ G=L |
< 90µVrms @ G=H | < 90µVrms @ G=H | < 90µVrms @ G=H | |
Channel crosstalk @ 1kHz | -93dB | -90dB | -91dB |
Input sensitivity | -1.5dBFS @ G=L | 1.7Vrms @ G=L | 3.5Vrms @ G=L |
-7dBFs @ G=H | 0.9Vrms @ G=H | 1.8Vrms @ G=H | |
Gain | 25.2(Vrms/FS) @ G=L | 19dB @ G=L | 13dB @ G=L |
30.7dB (Vrms/FS) @ G=H | 24.5dB @ G=H | 18.5dB @ G=H | |
Output impedance | < 0.2Ω | ||
Power | 2x 70W @ 4Ω, THD+N < 10% | ||
2x 55W @ 4Ω, THD+N < 1% | |||
2x 42W @ 8Ω, THD+N < 10% | |||
2x 35W @ 8Ω, THD+N < 1% | |||
Load impedance | 4-8Ω |
General | |
---|---|
Dimensions | 174 x 144 x 45mm |
Color | Silver |
Package | 1x Topping MX5 1x Power adapter + power cable 1x USB cable 1x Jack 6.35mm to Jack 3.5mm adapter 1x Remote control 1x Bluetooth antenna |
Input | RCA |
Input | SPDIF |
Input | Bluetooth |
Input | USB |
Input | Jack 6.35mm |
Input | Optical |
Output | Jack 6.35mm |
Output | Speaker terminal |
Color | Silver |
Channel | 2 (Stereo) |
Class | Class D / T |
Amplifier chip | Infineon MA12070 |
Power (W) | 55.0 |
Remote Control | Yes |
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Pascal L.
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