Amazon.com: HiFiGo SMSL PO100 PRO Portable USB DAC, Low-Jitter Output Modes Digital Decoder with AK4493S DAC Chip (PO100 Pro) : Industrial & Scientific
Amazon.com: S.M.S.L A12 Stereo Audio Amplifier Bluetooth 5.0, Mini HiFi Class D Integrated 2 Channel Power Amp for Home Speakers TV with Bass and Treble Control 80Wx2 MA12070 : Electronics
S.M.S.L M400 HiFi Audio DAC, Supports MQA decoding AK4499 Chip, Second XMOS XU216, DSD512 32Bit/768kHz, Bluetooth 5.0 Fully Balaced Decoder Hi-Res Hi-end, USB/ Optical/ Coaxial/ I²S/ Bluetooth Input
S.M.S.L SU-6 DAC ES9038Q2M XMOS DSD PCM768kHz/32Bit Bluetooth 5.0 LDAC USB Decoder (Silver)
Amazon.com: SMSL Audio M3 USB Powered Audio Decoder, Black : Electronics
Amazon.com: S.M.S.L AD18 HiFi Audio Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 for Speaker,Small 80Wx2 Class D Amplifier with Subwoofer Output : Electronics
Amazon.com: SMSL IQ Portable USB DAC and Headphone Amplifier,HiFi Audio Digital to Analog Converter with Balanced and Unbalanced Headphone Jack Hi-Res 32bit/768kHz DSD512 (Black) : Electronics