4-in/2-out Stereo Audio Mixer - RCA & 3.5mm Inputs Auto-Mixing No Switching Required Volume Control Drive Headphone Amplifier
4-in/2-out Stereo Audio Mixer - RCA & 3.5mm Inputs Auto-Mixing No Switching Required Volume Control Drive Headphone Amplifier
SPECIFICATIONS
Brand Name: DYKBmetered
Choice: yes
DIY Supplies: Electrical
High-concerned chemical: None
Origin: Mainland China
semi_Choice: yes
4-in/2-out Stereo Audio Mixer - RCA & 3.5mm Inputs | Auto-Mixing | No Switching Required
Core Features
-
Simultaneous Multi-Source Playback
4× Stereo RCA Inputs
1× 3.5mm AUX Input
-
Dual Output Modes
✅ Mixed Output: Blend all input sources
✅ Direct Pass-Through: Isolate individual channels
-
Built-in Amplifier
Gain: +3.5dB (1.5× signal boost)
-
Zero Switching Hassle
All inputs active concurrently
Technical Specifications
Parameter |
Specification |
Inputs |
4× RCA (L/R) + 1× 3.5mm TRS |
Outputs |
1× RCA (L/R) + 1× 3.5mm Headphone |
Power Supply |
DC 5-19V (Low-Ripple Required!) |
THD+N |
<0.05% @1kHz |
SNR |
>90dB |
PCB Dimensions |
110×50×28mm |
Enclosure Size |
120×52×43mm |
Wiring Guide
[AUX IN] ← 3.5mm sources (Phone/Tablet)
[RCA OUT] → Amplifier/Speakers
[HP OUT] → Headphones
[DC IN] ← 5-19V Clean Power
⚠️ Critical Power Note:
Use low-ripple linear power supplies only – switch-mode PSUs may induce 50/60Hz hum.
Application Scenarios
Home Studio: Blend synths/drum machines without repatching
DJ Setup: Merge backup players with main mixer
Retail Spaces: Simultaneous playback of music/announcements
Education: Multi-device audio demos
