YinLvMei introduces the M400E, a sophisticated portable DAC and headphone amplifier designed for discerning audiophiles seeking exceptional sound quality and versatile connectivity. Crafted with a CNC-machined aluminum chassis and protected by 2.5D glass, the M400E combines modern aesthetics with durable construction, making it a standout choice for both portable and stationary setups.
At the heart of the M400E lies the ESS ES9038PRO 8-channel DAC, capable of decoding PCM signals up to 32-bit/768kHz and DSD streams up to DSD512. This is complemented by an asynchronous USB interface implemented with the CT7601PR chip, ensuring stable and high-fidelity digital signal transmission. The amplification path features a custom assembly of OPA1612 operational amplifiers and eight power transistors operating in Class A, providing ample power to drive a wide range of headphones with varying impedances and sensitivities. Additionally, the device incorporates a two-stage gain control and a Japanese-made NEC relay to protect against connection-related audio artifacts.
Volume control is meticulously handled by two PGA2311 chips from Texas Instruments, offering a programmable analog regulation system that maintains high accuracy and minimizes noise. This analog approach effectively prevents the distortions and quality loss often associated with digital volume controls, ensuring a pristine listening experience.
Connectivity is a strong suit of the M400E, equipped with a Qualcomm CSR8675 Bluetooth module supporting popular codecs such as LDAC, aptX HD, aptX LL, AAC, and SBC. This allows users to seamlessly switch between wired and wireless modes without compromising audio integrity. The device also features multiple output options, including a balanced 4.4mm Pentaconn jack and several 3.5mm ports, catering to diverse headphone and audio equipment needs. A built-in 5000mAh battery offers up to six hours of portable use, enhancing its flexibility for on-the-go listening.
The YinLvMei M400E is available now at a recommended retail price of $539.99 USD. With its blend of high-end components, robust build quality, and comprehensive feature set, the M400E stands as a compelling option for audiophiles seeking a portable solution without sacrificing performance.