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Specification
Brand : S.M.S.L
BulletPoint1 : 【Three Major Chip Combinations】S.M.S.L AS400 uses the new digital high-power amplifier chip MA5332MS from Infineon and the new high-end DAC chip CS43131 from Cirrus Logic! It provides abundant driving force while achieving ultra-high efficiency and ultra-low energy consumption. It integrates the high-precision electronic volume chip NJW1194A from JRC of Japan, bringing ultra-low distortion, precise and delicate volume control experience.
BulletPoint2 : 【2.1 Channel Surging Sound Field】The stereo amplifier is equipped with a 2.1-channel active audio system, with dual 165W x2 full-range power output and an independent subwoofer channel. The exclusive subwoofer output interface can be connected to a high-power subwoofer unit. In the field of wireless audio transmission, AS400 supports LDAC, aptX/HD, SBC, and AAC full-protocol decoding, making every wireless listening a high-fidelity auditory feast.
BulletPoint3 : 【5 Filter and 8 EQ Sound Mode Options】 The digital amplifier has 5 PCM filters: Fast and Low-atency filterFast, Phase-compensated filter, Slow and Low-latency filter, Slow and Phase -compensated filter, Nonoversampling filter 8 EQ settings: Direct, Tone, SDB, Bass, Super bass, Rock, Soft, Clear.
BulletPoint4 : 【XMOS MX316 USB and MQA MQA-CD DAC】 The collaboration of smsl dac amp XMOS XU-316 and MQA decoding is not a simple superposition of technology, but a lossless channel from the studio master to the user's ears. When the 32bit/768kHz sound wave details flow like a galaxy, the master emotion unlocked by MQA is reproduced like the original sound, becoming a zero-distance dialogue with the original state of the music.
BulletPoint5 : 【Built-in MM Vinyl Phono】Built-in professional-grade MM phono amplifier, no need for additional phono equipment, easily connect to a vinyl record player, and instantly immerse yourself in the charm of analog sound. Faithfully capture the rich details and warm charm of vinyl records.
BulletPoint6 : 【Multiple Inputs and Outputs】 The bluetooth amplifier provides multiple input options including RCA, Bluetooth, USB, optical fiber, coaxial, Phono, and I²S, making it easy to connect to various audio source devices such as subwoofers, passive speakers, TVs (ARC), mobile phones/tablets, DACs, and players to enjoy a seamless audio experience. In addition, it provides two headphone output interfaces, 4.4mm and 6.35mm, to present an immersive high-fidelity listening experience for audiophiles.
BulletPoint7 : 【We Offer The Following service】 We products we handle are 100% genuine. Returns can be made within 30 days from the date of purchase, We also offer 24-hour online service. If you have any questions,Welcome to reach out to our after-sales team at any time. Note: Using HDMI cable connect an ARC-compatible TV to AS400 when choose HDMI input.
Color : Plata
ItemName : SMSL AS400 Power Amplifier DAC Headphone Amp 165W x2 2.1 Channel MA5332MS MM Phono Amp Bluetooth 5.1 CS43131 MQA CD DAC Preamp 4.4mm/6.35mm RCA/BT/USB/Opt/Coax/Phono/12S Input 768K/32Bit XMOS XU316
ItemPackageDimensions_Height : 7.9 centimeters
ItemPackageDimensions_Length : 38.3 centimeters
ItemPackageDimensions_Width : 24.2 centimeters
ItemTypeKeyword : headphone-amps
Manufacturer : SMSL
ModelNumber : AS400
NumberOfBoxes : 1
NumberOfItems : 1
PartNumber : AS400
ProductDescription : Inputs：RCA/BT/USB /Optical/Coaxial/Phono /l2S
THD+N：0.003%
SNR：107dB
Output Power(RMS) Stereo：40Ω@165Wx2 / 8Ω@5Wx2
Channel Separation：98dB
Input Sensitivity/input impedance：280mV/22kQ
USB Transmission：Asynchronous Transfer
USB compatibility：Windows7/8/8.1/10/11 / Mac OSX、Linux
MQA Decoder：USB /Optical/ Coaxia
MQA-CD decoder：Optical/ Coaxia
Bit depth：USB 1bit, 16~32bit；Optical/Coaxial 1bit,16~32bit
Sampling Rate： USB PCM：44.1~768kHz
DSD：2.8224~11.2896MHz
Optical/Coaxial PCM：44.1~192kHz
DSD ：DSD64(DoP)
Power Consumption：40W(Normal Volume)
Size：210.4x46x254mm(WxHxD)
Weight：1.568kg/3.46lbs

ProductSiteLaunchDate : 2025-05-21T09:11:10.939Z
Style : US Plug 100-240V
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
UnspscCode : 52161500