Pro-X Technology

AIYIMA T1 PRO 6186 Tube Vacuum Preamp BT5.1 QCC3040 w/ Bass Treble Tone Control

FOSI AUDIO P3 Tube Preamp, BT5.0 & Headphone Amplifier w Bass & Treble

AVPRO XH-M164 NE5532 PreAmp Board w Volume Bass Mid Treble

DOUK AUDIO T8 PRO Balanced XLR Tube 9-pin Preamp with 7-band EQ & RCA

AIYIMA TUBE-T2 6J1 Tube Preamp & BT 5.0 Receiver w Bass Treble

AIYIMA T2 Tube Preamp 2-Output & BT5 Receiver w Bass Mid Treble

DOUK AUDIO EQ5-PRO Equalizer 5-band, BT 5.0 Receiver & Stereo VU Meter

AIYIMA A03 2.1 Amplifier 2x50w+100w TPA3116D2 Class-D & BT 5.0 Rec

AIYIMA A01 PRO Amplifier 2x100w TPA3116D2 Class-D Amplifier & BT 5.1

DOUK AUDIO P6 MINI Tube Preamp, BT5.0 Receiver & U-Disk Player