TEYUN AF4 4-Channel USB Mixer — 48V Phantom, Bluetooth & Loopback

An analogue mixing console with a digital sound card built in. Two mic channels with three-band EQ, a stereo pair for playback sources, and a USB port that works both ways — record the mix to your computer while the computer's audio comes back into the mix. The loopback function makes it genuinely useful for webcasting rather than just recording.

Highlights

• Loopback — route computer audio back into the mix, ideal for live streaming
• Built-in sound card, USB two-way, no driver installation
• Two mic channels with insert points, plus a stereo line pair
• Three-band EQ on each channel
• 48V phantom power for condenser microphones
• Built-in delay/repeat effects with dedicated controls
• USB and Bluetooth playback with onboard display and transport controls
• Level metering (Clip / −24 / Power) for visual monitoring

Specifications

• Model: TEYUN AF4
• Type: 4-channel analogue mixer with USB audio interface
• Channels: 2 × mic (XLR + line + insert), 1 × stereo line pair (ch 3/4)
• EQ: 3-band per channel
• Sends: Aux and Effect per channel
• Effects: Built-in delay with repeat control
• Phantom power: +48V
• Outputs: Main L/R (6.35mm), Rec out (RCA L/R), headphones
• Inputs: Tape in (RCA L/R), USB media, Bluetooth
• USB: Two-way transmission with loopback; driver-free
• Dimensions: 205 × 200 × 40 mm (2.7 cm at the front edge)

Specifications taken from the manufacturer's product documentation and device markings.