**【Product Specifications】:**
**Input Terminals:** USB / Optical / Coaxial / Bluetooth / I2S / AES(EBU)
**Output Terminals:** Line (RCA), Balanced Line (XLR), 4.4mm Balanced Headphone Jack, 6.35mm Unbalanced Headphone Jack
**THD+N:** Balanced: 0.00005% (-125dB) (UN-WTD), Unbalanced: 0.00007% (-123dB) (UN-WTD)
**THD+N (Headphone Amplifier):** 0.00009% (-120dB) (UN-WTD)
**Headphone Output:**
Balanced: 6W x 2 (16Ω), 3W x 2 (32Ω), 700mW x 2 (300Ω), 350mW x 2 (600Ω)
Unbalanced: 3W x 2 (16Ω), 1.5W x 2 (32Ω), 350mW x 2 (300Ω), 175mW x 2 (600Ω)
**Output Level:** Balanced: 5.2Vrms, Unbalanced: 2.5Vrms
**High Gain (Headphone Amplifier):** Balanced: +15.5dB, Unbalanced: +9.5dB
**Dynamic Range:** Balanced: 133dB, Unbalanced: 127dB, Headphone Amplifier: 125dB
**SNR:** Balanced: 133dB, Unbalanced: 127dB, Headphone Amplifier: 125dB
**Output Impedance:** 100Ω
**Output Impedance (Headphone Amplifier):** Close to 0Ω
**Bluetooth ver:** BT5.1 (Supports LDAC・APTX・APTX-HD・AAC・SBC, Adaptive)
**USB Transmission Method:** Asynchronous Transmission
**Supported OS (USB Connection):** Windows 7/8/8.1/10/11 / Mac OSX 10.6 or later / Linux / Android (OTG) / iOS (Apple Lightning-USB Camera Kit)
**MQA Decoder:** USB / Optical / Coaxial / AES / EBU
**MQA-CD Decoder:** Optical / Coaxial / AES / EBU
**Bits:** USB: 16bit/24bit/32bit/1bit, Optical / Coaxial / AES (EBU): 16bit/24bit/1bit
**Sampling Rate:**
USB/I2S: PCM: 44.1 ~ 768kHz, DSD: DSD64 ~ DSD512, DoP (USB): DoP256
Optical / Coaxial / AES (EBU): 44.1kHz/48kHz/88.2kHz/96kHz/176.4kHz/192kHz/DSD64 (DoP, Optical/Coaxial)
**Power Consumption:** <40W
**Standby Power:** <0.5W
**Dimensions:** Height 47mm x Width 250mm x Depth 240mm
**Accessories:**
1x Simplified Instruction Manual (Chinese and English only)
1x Remote Control
1x Bluetooth Antenna
1x Power Cable
1x USB A-USB C Cable
**Note:**
Official drivers can be downloaded from the S.M.S.L official website. Please refer to this address for the file location: SUPPORT - Product-driver Download - DL series
・Equipped with the flagship DAC IC “ES9039MSPRO” from ESS, maximizing the chip's performance for an immersive high-resolution audio experience!
・Adopts the 3rd generation XMOS program “XMOS XU316”, and with the official driver, support for DoP and native DSD playback is further enhanced! Supports a PCM sampling rate of up to 32bit/768kHz and DSD native playback up to DSD512. It also fully supports MQA decoding for supported file formats, and optical and coaxial inputs support MQA-CD. / Features a DoP playback indicator that displays the file format being played. / All input terminals support DSD transmission. (Coaxial and optical support DoP64.)
・The DL400 internally features a PLFC (Positive-Feedback Linearized Circuit) known for its ultra-low distortion. It boasts exceptional performance with a four-circuit design, and all stages from input to output are configured as balanced circuits, resulting in a full-balanced headphone amplifier. Includes 4.4mm balanced and 6.35mm unbalanced headphone output jacks, easily accommodating even high-impedance headphones!
・Adopts the latest high-quality Bluetooth technology from Qualcomm! Supports Bluetooth 5.1, and a variety of high-quality Bluetooth audio codecs including LDAC (24bit/96kHz), APTX, APTX-HD, AAC, and SBC, as well as low-latency aptX Adaptive. When using Bluetooth, information such as the singer and song title is also displayed, making it easy to see the details of your favorite songs! (Depending on the device model and playback software, this function may not display correctly on some devices.)
・Independent volume setting function, various filter modes corresponding to digital signals, output mode specification, tone adjustment function, preamp function, remote control operation, screen brightness adjustment function, screen display off timer setting function, two types of I2S interface standards, two types of XLR interface standards, digital PLL adjustment function “DPLL”
【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device's requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
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