Just upgraded my DAC/AMP to Fostex HP-A4 : r/headphones
Amazon.com: Fostex HP-A3 32-Bit Digital to Analog Converter/Headphone Amplifier : Electronics
Amazon.com: Fostex HP-A4 24 bit USB and Optical DAC with headphone amplifier. Up to 5.6 Mhz DSD and 192 Khz PCM. : Electronics
Fostex HP-A4 24-Bit Digital to Analog Converter/Headphone Amplifier Bu – KELLARDS
Fostex PC-100USB-HR-2 - High Res 24 Bit 96k USB DAC & Volume Controller - Headphone Amplifier - Professional Audio Design, Inc | Professional Audio Design, Inc
Fostex HP-A4BL | Audiofool Reviews
Fostex HP-A3 Review
Fostex HP-A4 24 bit USB and Optical DAC with headphone amplifier. Up to 5.6 Mhz DSD and 192 Khz PCM. : Electronics - Amazon.com
DAC・ヘッドホンアンプ | FOSTEX(フォステクス)
Fostex Carer: the HPA8C DAC and headphone amplifier - The Audiophile Man