SMSL DO400 DAC ES9039MSPRO Headphone Amplifier XMOS XU316 Bluetooth 5.1 LDAC 32bit 768kHz DSD512 MQA-CD Black
SMSL unveils the DO400, a powerful, high-quality DAC/headphone amplifier. It incorporates quality components such as the latest ESS ES9039MSPro chip, an XMOS XU316 USB interface, 11 OPA 1612A and the latest generation Qualcomm QCC5125 Bluetooth chip. To complete the package, an MQA decoder is integrated into the DO400, enabling it to decode high-resolution audio streams up to PCM 32bit 768kHz, DSD512 and MQA-CD.
SMSL unveils the DO400, a powerful, high-quality DAC/headphone amplifier. It incorporates quality components such as the latest ESS ES9039MSPro chip, an XMOS XU316 USB interface, 11 OPA 1612A and the latest generation Qualcomm QCC5125 Bluetooth chip. To complete the package, an MQA decoder is integrated into the DO400, enabling it to decode high-resolution audio streams up to PCM 32bit 768kHz, DSD512 and MQA-CD.
SMSL unveils the DO400, a powerful, high-quality DAC/headphone amplifier. It incorporates quality components such as the latest ESS ES9039MSPro chip, an XMOS XU316 USB interface, 11 OPA 1612A and the latest generation Qualcomm QCC5125 Bluetooth chip. To complete the package, an MQA decoder is integrated into the DO400, enabling it to decode high-resolution audio streams up to PCM 32bit 768kHz, DSD512 and MQA-CD.
SMSL unveils the DO400, a powerful, high-quality DAC/headphone amplifier. It incorporates quality components such as the latest ESS ES9039MSPro chip, an XMOS XU316 USB interface, 11 OPA 1612A and the latest generation Qualcomm QCC5125 Bluetooth chip. To complete the package, an MQA decoder is integrated into the DO400, enabling it to decode high-resolution audio streams up to PCM 32bit 768kHz, DSD512 and MQA-CD.
in 23 offers
The lowest price for SMSL DO400 DAC ES9039MSPRO Headphone Amplifier XMOS XU316 Bluetooth 5.1 LDAC 32bit 768kHz DSD512 MQA-CD Black right now is $641.00 at The HiFi Cat, compared across 9 retailers.
The all-time low was $569.00 on 5 June 2026 — today's price is 13% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 4 Nov 2026.
Last updated at 04/11/2026 10:26:33
SMSL DO400 Full Balanced Headphone Amp, ES9039MSPRO XMOS-XU316 USB MQA DAC, Bluetooth 5.1 LDAC USB/AES/Optical/Coaxial/IIS Input 4.4mm/6.35mm/4-XLR
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
SMSL DO400 ES9039MSPRO Full Balanced Headphone Amplifier Audio Decoder DAC Black
Free delivery
SMSL DO400 Audio Decoder ES9039MSPRO Decoding Chip Dac Decoder Support for USB Input Optical Fiber
Free delivery
Smsl Do400 Es9039mspro Mqa Audio Decoder Fully Balanced Headphone
Delivery $56.52
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
SMSL DO400 Full Balance DAC Headphone Amplifier ES9039MSPRO XMOS-XU316 USB DAC Bluetooth 5.1 DAC USB/AES/Optical/Coaxial MQA DAC IIS Input DAC
Delivery between 8–12 Nov $41
SMSL DO400 Fully Balanced Audio DAC & Headphone Amplifier | ES9039MSPRO MQA-CD Decoder SMSL-DO400-Black
Free delivery
SMSL DO400 Full Balanced Headphone Amplifier DAC Amp ES9039MSPRO XMOS-XU316 USB MQA DAC USB/AES/Optical/Coaxial/IIS Input 4.4mm/6.35mm/4-XLR Jack Outp
Free delivery between 13–18 Nov
SMSL DO400 Full Balanced Headphone Amplifier DAC Amp ES9039MSPRO XMOS-XU316 USB MQA DAC USB/AES/Optical/Coaxial/IIS Input 4.4mm/6.35mm/4-XLR Jack Outp
Free delivery between 13–18 Nov
SMSL DO400 Full Balanced Headphone Amplifier DAC Amp ES9039MSPRO XMOS-XU316 USB MQA DAC USB/AES/Optical/Coaxial/IIS Input 4.4mm/6.35mm/4-XLR Jack Outp
Delivery between 10–13 Nov $29
| Bluetooth | Yes |
| Connection Type | Wired |
| Headphone Jack | Yes |
| Networking | Bluetooth |
| Wi-Fi | No |
SMSL DO400 Full Balanced Headphone Amp, ES9039MSPRO XMOS-XU316 USB MQA DAC, Bluetooth 5.1 LDAC USB/AES/Optical/Coaxial/IIS Input 4.4mm/6.35mm/4-XLR
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
SMSL DO400 ES9039MSPRO Full Balanced Headphone Amplifier Audio Decoder DAC Black
Free delivery
SMSL DO400 Audio Decoder ES9039MSPRO Decoding Chip Dac Decoder Support for USB Input Optical Fiber
Free delivery
Smsl Do400 Es9039mspro Mqa Audio Decoder Fully Balanced Headphone
Delivery $56.52
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
SMSL DO400 Full Balance DAC Headphone Amplifier ES9039MSPRO XMOS-XU316 USB DAC Bluetooth 5.1 DAC USB/AES/Optical/Coaxial MQA DAC IIS Input DAC
Delivery between 8–12 Nov $41
| Bluetooth | Yes |
| Connection Type | Wired |
| Headphone Jack | Yes |
| Networking | Bluetooth |
| Wi-Fi | No |
