Ruth's sister
Ruth's sister 4-Channel Stereo Passive Mixer international power cord
A passive 4-channel stereo mixer with metal housing, four independent volume controls and no power required
- 4-channel passive mixing with no power needed
- Four independent 100K ohm volume controls for precise level adjustment
- Metal housing provides 8.3cm x 5.2cm x 3.8cm durable construction
- Low-noise design with 10K-47K ohm input and 2.5K-10K ohm output impedance
- Versatile stereo RCA connectivity for instruments, players, computers and mobile devices
Compact 4-Channel Passive Mixer
This four-channel passive mixer handles stereo RCA signals without any external power supply. Its metal housing measures 8.3cm by 5.2cm by 3.8cm and contains four independent 100K ohm potentiometers for level control. The unit accepts four stereo inputs and provides one stereo output, making it suitable for combining sources such as instruments, CD players, computers or mobile devices. It can also function as a one-input to four-output distributor when wired in reverse.
Check Your Connections and Levels
Verify that each source you plan to connect uses a stereo RCA output and that your destination device has a stereo RCA input. The mixer presents an input impedance between 10K ohm and 47K ohm and an output impedance between 2.5K ohm and 10K ohm, so match these to your equipment for best signal transfer. Maximum gain is -12dB, meaning the mixer only attenuates; it cannot boost weak signals. Ensure you have enough RCA cables for all four inputs and the single output.
Replaces Active Mixers for Simple Summing
If you currently use a powered mixer solely to combine a few line-level stereo sources, this passive unit removes the need for a power socket and reduces noise floor. The jump is worth it when you want a compact, battery-free solution for stationary desktop or rack setups where all sources are already at line level. It is not for users who need microphone preamplification, equalisation, headphone monitoring or any form of signal gain.
Highlights
- 4-channel passive mixing with no power needed
- Four independent 100K ohm volume controls for precise level adjustment
- Metal housing provides 8.3cm x 5.2cm x 3.8cm durable construction
- Low-noise design with 10K-47K ohm input and 2.5K-10K ohm output impedance
- Versatile stereo RCA connectivity for instruments, players, computers and mobile devices
Specifications
No published specifications for this item yet.
Questions about this item
Does the mixer come with the RCA cables I need to hook up four sources and one output, or do I buy them separately?
The box contains only the passive mixer unit; four stereo RCA input cables and one stereo RCA output cable must be purchased separately.
I see only one version listed — are there different channel counts or impedance options to choose from?
This model is a single 4-channel stereo passive mixer with 100K ohm potentiometers, 10K–47K ohm input impedance and 2.5K–10K ohm output impedance; no alternate versions are offered.
The spec says –12 dB maximum gain — what does that mean for the signal level when I connect a phone and a CD player?
The mixer is passive so it cannot boost signal; –12 dB is the worst-case insertion loss, meaning the output will be slightly lower than the source level and you may need to turn the source or amplifier volume up.
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