LOXJIE A40 Class D Amplifier Headphone Amplifier

LOXJIE A40 main picture New
With its A40, Loxjie has unveiled a powerful and versatile Class D amplifier. It can deliver up to 2x165W @ 4 ohm thanks to its Infineon MA5332MS amplifier chip. Moreover, the Loxjie A40 comes with a variety of features, including a Bluetooth 5.1 reception chip, a phono input, a subwoofer output and an HDMI ARC port. 

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240,83 € tax excl.
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LOXJIE A40 Class D Amplifier Infineon MA5332MS USB Bluetooth 5.1 Subwoofer 2x165W @ 4 ohm

LOXJIE A40 picture

With its A40, Loxjie has unveiled a powerful and versatile Class D amplifier. It can deliver up to 2x165W under 4 ohm thanks to its Infineon MA5332MS amplifier chip. Moreover, the Loxjie A40 comes with a variety of features, including a Bluetooth 5.1 reception chip, a phono input, a subwoofer output and an HDMI ARC port. This means you can link it directly to a vinyl turntable or enjoy the sound of your television in a 2.1-channel configuration. There are also two headphone outputs with 6.35mm jack and 4.4mm balanced jack. The Loxjie A40 is a highly versatile amplifier with quality components. Here are its several highlights:

  • An Infineon MA5332MS amplifier chip and an output power of 2X165W @ 4 ohm (THD+1 <1%).
  • CS43131 DAC/headphone amplifier chip for high-quality performance.
  • Qualcomm QCC5125 Bluetooth 5.1 receiver chip supporting high-resolution codecs.
  • NJW1194 low-noise, low-distortion volume controller.
  • Full connectivity: phono input, HDMI ARC port, subwoofer output, headphone outputs, etc.
  • Optical and digital inputs with MQA decoder and XMOS XU316 USB interface.
  • 8 EQ presets and the ability to adjust bass and treble from -9db to +9dB.
  • 5 digital filters.
  • Remote control.
LOXJIE A40 highlights

Loxjie A40: a high-performance chipset

The Loxjie A40 class D amplifier incorporates a MERUS MA5332MS amplifier chip, giving it an output power of 2x165W @ 4 ohm. A CS443131 DAC/headphone amplifier chip, XMOS XU316 USB interface and MQA decoder also enable it to support high-resolution sampling rates up to PCM 32bit 768kHz, DSD256 and MQA.

Photo of the Infineon MA5332MS chip
LOXJIE A40 subwoofer output and HDMI ARC port

Loxjie A40: HDMI ARC port and subwoofer output

With the Loxjie A40, an HDMI ARC port and a subwoofer output allow you to enjoy a high-fidelity sound experience with your TV as the source and set up a 2.1-channel system for immersive bass. The A40 amplifier features a low-pass filter so you can connect it to an active subwoofer for punchy bass.

Loxjie A40: phono input

A phono input will delight vinyl fans who can enjoy their 33T and 45T collection by connecting their turntable directly to the Loxjie A40.

Photo of LOXJIE A40 phono input
LOXJIE A40 Bluetooth 5.1 functionality

Loxjie A40 : Bluetooth 5.1

A Qualcomm QCC5125 Bluetooth receiver chip gives the A40 the ability to receive high-resolution codecs such as aptX, aptX Adaptive, aptX HD and LDAC. This makes it possible to stream music wirelessly from a smartphone, for example.

Loxjie A40: independent volume control

The volume control of the A40's headphone outputs or speaker terminals is controlled independently for greater convenience. This means that if you change the output mode, the volume level will change automatically.

LOXJIE A40 independent volume control

Loxjie A40 overview

LOXJIE A40 connector diagram
1Display
2Headphone outputs: 6.35mm jack / 4.4mm jack
3Multifunction button
4GND terminal phono input
5Phono RCA input
6RCA input
7SPDIF coaxial input
8Subwoofer output
9USB-C input
10HDMI ARC port
11Optical Toslink input
12Bluetooth antenna
13Right channel speaker terminal
14Left channel speaker terminal
15IEC power supply

Technical characteristics

Specifications
Product typeAmplifiier / Headphone amplifier
Amplification chipInfineon MERUS MA5332MS
USB interfaceXMOS XU316
Inputs1x RCA input
1x Phono RCA input
1x USB-C input
1x Coaxial SPDIF input
1x Toslink optical input
1x HDMI ARC port

Bluetooth
OutputsSpeaker terminals
1x Subwoofer output

1x 6.35mm jack headphone output
1x 4.4mm balanced jack headphone output
Output power2x 165W @ 4 ohm
2x 85W @ 8 ohm
THD+N0.003%
SNR107dB
Channel separation98dB
Input sensitivity / input impedance280mW / 22kOhm
Bluetooth5.1
Supported Bluetooth codecsSBC, AAC, aptX, aptX Adaptative, aptX HD, LDAC
USB transmission Asynchronous
USB compatibilityWindows 7 / 8 / 8.1 / 10 / 11
Mac OSX
Linux
Supported sample ratesUSB: 32bit 768kHz, native DSD up to DSD256, MQA
Optical: 24bit 192kHz, DSD DoP64, MQA
General
Power supply100-240V AC
Power consumption40W
Dimensions243 x 42 x 177mm
Weight1.61kg
Package1x Loxjie A40 amplifier
1x Bluetooth antenna
1x USB-A to USB-C cable
1x HDMI cable
1x Remote control
1x Mains power cable
 
Data sheet
InputBluetooth
InputHDMI ARC
InputUSB
InputXLR
InputOptical
InputPhono
InputRCA
InputSPDIF
OutputJack 6.35mm
OutputJack 4.4mm
OutputSpeaker terminal
OutputSubwoofer
ColorGray
Channel2.1
ClassClass D / T
Amplifier chipInfineon MA5332M
Power (W)165.0
Remote ControlYes
 
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LOXJIE A40 Class D Amplifier Infineon MA5332MS USB Bluetooth 5.1 Subwoofer 2x165W @ 4 ohm
With its A40, Loxjie has unveiled a powerful and versatile Class D amplifier. It can deliver up to 2x165W @ 4 ohm thanks to its Infineon MA5332MS...

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