TUBE mini Balanced Headphone Amplifier / DAC — Woo Audio
Amazon.com: Geekria SJC01 Portable Headphone Amplifier/DAC/AMP with USB and Type-C Input, 3.5mm Audio Jack Output, Compatible with 384K/32Bit Hi-Res APPL Music Lossless Audio, PC, Laptop, Android Phones : Electronics
Topping G5 is a great DAC/AMP, but... it's not that loud* : r/headphones
Cambridge Audio DacMagic 200M Stereo DAC/headphone amplifier/preamp with built-in Bluetooth® at Crutchfield
Fostex HP-A4BL Headphone Amp DAC Balanced Out - Vintage King
DAART Yulong Aquila III AK4499EX DAC Amplifier Preamp Headphone Amplifier All-in-one | The HiFi Cat
Violectric HPA V222
The 3 Best Portable Headphone Amps With Built-In DAC of 2023 | Reviews by Wirecutter
DAART Yulong Aquila III DAC AMP Headphone Amplifier AK4191 AK4499EX chips ARM FPGA JIC USB Interface DSD1024 PCM 1536KHz - AliExpress
Amazon.co.jp: Helm Audio Volt DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Support MQA Playback Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified, Black : Electronics