Topping DX5 II Fully Balanced DAC Headphone Amplifier 7600Mw, es9039q2m X 2 Chip DSD512 768Khz DAC Amp Combo, USB/Optical/Coaxial/Bluetooth To RCA/XLR

TOPPING E2x2 OTG USB Audio Interface - Ultra-Linear Preamp & Powerful Headphone Amp,Optical Output, Dual Mobile Streaming, Zero-Latency, 192Khz/24Bit

Topping E30II Lite DAC Preamp - AK4493S Hi-Res XMOS XU208 DAC 32Bit/768Khz DSD512 DSD Direct Mode For USB/Coax/Opt Inputs RCA Hifi Stereo Digital

Topping D70 Pro OCTO Hi-Res DAC: 8X CS43198 Flagship Chips, Bluetooth5.1 Wireless Audio DAC, USB/AES/BT/Opt/Coax Input XLR/RCA Output, Home Audio DA

TOPPING E70 Velvet - High-Performance DAC With AK4499EX, Bluetooth 5.1 LDAC, Ultra-Low THD+N, Selectable Output Levels, USB Support DSD512 & Pcm768khz