SMSL AO300 Pro 3-In-1 Hi-Res Audio System
The SMSL AO300 Pro is an advanced 3-in-1 desktop audio solution, integrating a high-performance DAC, a dedicated headphone amplifier, and a powerful Class D power amplifier into a compact chassis. Designed for high-end audio enthusiasts, it delivers exceptional resolution, robust driving power, and versatile connectivity for both desktop setups and living room entertainment systems.
Cirrus Logic CS43131 DAC Architecture
At the core of the AO300 Pro is the high-fidelity Cirrus Logic CS43131 decoding architecture, paired with the advanced XMOS XU-316 processor. This precision-engineered digital-to-analog stage drastically suppresses background noise and jitter, ensuring pure, transparent audio reproduction with rich textural detail and precise soundstaging.
High-Power Class D Speaker Amplification
Equipped with an Infineon MA5332MS Class D power amplifier stage, the AO300 Pro delivers robust stereophonic output power of up to 165W per channel into 4Ω loads and 85W into 8Ω loads. It easily drives demanding bookshelf or floor-standing speakers, providing deep, controlled bass, clear midrange, and ample dynamic headroom.
Comprehensive Headphone Output Options
Catered to personal audio users, the device features a built-in headphone amplifier circuit equipped with both a 4.4mm balanced output jack and a 6.35mm single-ended output jack. It delivers clean, low-distortion amplification suitable for a wide range of sensitive IEMs and high-impedance headphones.
High-Performance Bluetooth 5.3 Connectivity
Featuring a modern Bluetooth 5.3 chipset, the AO300 Pro supports high-definition wireless audio streaming protocols including LDAC, aptX HD, aptX, AAC, and SBC. This allows users to stream high-resolution audio seamlessly and reliably from smartphones, tablets, and laptops without loss of clarity.
MQA and High-Resolution Audio Decoding
The AO300 Pro offers comprehensive hardware support for demanding modern formats, natively decoding PCM audio up to 32-bit/768kHz and DSD up to DSD256 via USB. Additionally, it includes full MQA and MQA-CD decoding capabilities to reproduce master-quality studio recordings with absolute fidelity.
Versatile Digital and HDMI eARC Connectivity
Designed as a complete media hub, the unit includes a full array of digital and analog inputs such as USB-C, Optical, Coaxial, RCA, and an HDMI (eARC) port with CEC control. The HDMI eARC connection enables direct, high-quality audio integration with modern flat-screen televisions, transforming your setup into a high-end 2.1-channel home entertainment system.
Premium CNC Aluminum Construction
The chassis is precision-milled from a solid block of high-grade aluminum using advanced CNC machining techniques. This robust enclosure provides a sleek, modern aesthetic while ensuring exceptional structural rigidity and effective shielding against external electromagnetic interference.
About SMSL
Foshan ShuangMuSanLin Electronics Co., Ltd. (SMSL) is an established manufacturer specializing in high-fidelity desktop audio equipment. Renowned globally for digital-to-analog converters, balanced headphone amplifiers, and power amplifiers, SMSL consistently combines rigorous bench performance, clean industrial design, and practical feature sets.
Technical Specifications
Inputs: USB-C, Optical, Coaxial, Bluetooth, RCA, HDMI (eARC)
Outputs: Speaker terminals, Subwoofer output, 4.4mm balanced headphone jack, 6.35mm single-ended headphone jack
Amplifier Chip: Infineon MA5332MS (Class D)
DAC Chip: Cirrus Logic CS43131
Output Power: 165W x 2 (4Ω), 85W x 2 (8Ω)
THD+N: 0.003%
SNR: 107dB
Bluetooth Version: 5.3 (SBC, AAC, aptX, aptX HD, LDAC)
Maximum Sampling Rate (USB): PCM up to 32-bit/768kHz, DSD256
Dimensions: 219 × 42 × 185 mm (W × H × D)
Weight: 1.5 kg
Q&A
What DAC chip does the SMSL AO300 Pro use?
It uses the high-performance Cirrus Logic CS43131 decoding chip.
What is the speaker output power of the unit?
It delivers 165W per channel into 4Ω speakers and 85W per channel into 8Ω speakers.
Does the AO300 Pro support headphone connections?
Yes, it features both a 4.4mm balanced and a 6.35mm single-ended headphone output.
Can I connect this amplifier directly to my TV?
Yes, it features an HDMI eARC input port with CEC control, allowing seamless audio integration with your television.
What wireless audio codecs are supported?
It supports high-definition codecs including LDAC, aptX HD, aptX, AAC, and SBC via Bluetooth 5.3.
