Best Onkyo Headphone Amplifier

Onkyo TX-NR7100 9.2-Channel 8K/4K Network A/V Receiver, 220W Per Channel at 6 Ohms

Onkyo TX-NR6050 7.2-Channel 8K Network AV Receiver

Onkyo TX-NR6100 7.2 Channel THX Certified Network AV Receiver

Onkyo TX-NR696 7.2-Channel Network A/V Receiver, 210W Per Channel (at 6 Ohms)

Onkyo TX-SR393 5.2-Channel A/V Receiver, 80W Per Channel at 8 Ohms

Onkyo TX-8220 Stereo Receiver with Built-in Bluetooth

Moukey Home Audio Amplifier Stereo Receivers with Bluetooth 5.0, 400W 2.0 Channel Power Amplifier Stereo System w/USB, SD, AUX, RCA, MIC in w/Echo, LED for Karaoke, Home Theater Speakers - MAMP1

Coda Music Technologies

Coda Music Tech Personal in-Ear Monitor System - Ultra-Compact Headphone Amplifier with XLR and TRS Input - Mono, Dual Mono and Stereo Mix Panning - Sturdy Housing with Belt Clip

Fosi Audio Q4 Desktop DAC Headphone Amp for PC Mini Stereo Headphone Amplifier Combo USB Optical Coaxial to RCA AUX Digital-to-Analog Audio Converter Adapter for Home Powered Speakers

Neoteck Portable 3.5mm Headphone Amplifier Two-Stage Gain Switch, 16-150 Ohm, Aluminum Matte Surface