iFi Audio iDSD Diablo2 Bluetooth Compatible Portable DAC Amplifier DSD512/PCM768/Lossless []

iFI Audio USBDAC Headphone Amplifier Nano iDSD Black Label Built-in

HIDIZS DH80S Portable Amplifier Mini Headphone DAC and Balanced Output Android System Single-ended 3.5mm 4.4mm PC, Windows/Mac OS/iOS

GAOHOU Mini Digital Power Channel Audio Amplifier-HiFi-TPA3116-Stereo-2-0 Amplifier-50-50W-WT

FiiO AM3D [FIO-AM3D] Amplifier Module for X7/Q5

Subwoofer 60W 60W Dual Channel Digital Power Amplifier HiFi Subwoofer Audio Amplifier for Home Speaker XH-M541 Amplifier, + Bookshelf, Computer,

FiiO AM3D Amplifier Module for [FIO-AM3D] X7/Q5

XDUOO Balanced DAC Headphone Amplifier DSD64 XA-02 & PCM24bit/192KHz

iFi Audio ZEN DAC 3 Full Decoding Compatible Amplifier DSD512/PCM768/MQA USB-DAC []

TOPPING A30 Pro NFCA Headphone Amplifier OPA1656 4PIN XLR Output Balanced Input AMP 3 Step Gain Setting Headphone Amplifier 4.4MM 6.35MM (Silver)

TOPPING A30 Pro NFCA Headphone Amplifier OPA1656 4PIN XLR Output Balanced Input AMP 3 Step Gain Setting Headphone Amplifier 4.4MM 6.35MM (Silver)

TOPPING A30 Pro NFCA Headphone Amplifier OPA1656 4PIN XLR Output Balanced Input AMP 3 Step Gain Setting Headphone Amplifier 4.4MM 6.35MM (Silver)

Power Transistor Discrete Configuration Headphone Amplifier FX-AUDIO- PH-A1J (silver)

iFi Zen Can 3 Analog Headphone Amplifier Balanced and Headphone Outputs - - 4.4mm 6.35mm Single-ended

High Resolution Compatible DAC Headphone Amplifier Micro iDSD Signature iFI Audio Resolution Function iFi-Audio & micro-iDSD-Signature [High

Douk Audio U5 PRO Small Fully Balanced Headphone Amplifier Mini Stereo Headphone Amplifier for Headset OP42 BUF634 Pluggable Op Amp Socket XLR/4.4mm

Douk Audio U5 PRO Small Fully Balanced Headphone Amplifier Mini Stereo Headphone Amplifier for Headset OP42 BUF634 Pluggable Op Amp Socket XLR/4.4mm

SMSL DS100 MQA DAC CS43131 Chip Headphone Amplifier USB Audio Decoder PCM Support Input Mini DAC MQA-CD 6.35mm & 4.4mm 32bit/768kHz

Upgraded Version Douk Audio U3 Head Mini Class A HiFi Headphone Amplifier Desktop Home Stereo Amplifier DC5V Amplifier,

Upgraded Version Douk Audio U3 Head Mini Class A HiFi Headphone Amplifier Desktop Home Stereo Amplifier DC5V Amplifier,

Power Transistor Discrete Configuration Headphone Amplifier FX-AUDIO- PH-A1J (silver)