Aerpro AP305A 2-Channel Ground Loop Isolator
The Aerpro AP305A is a 2-channel ground loop isolator that fits between your head unit and amplifier using female RCA input and male RCA output. It's built to cut out that annoying whine or hum that comes from a ground loop in your car's audio system. Plug and play, no special tools needed.
Product overview
Ground loop noise happens when there's a small difference in electrical ground voltage between two parts of your audio system, like your head unit and your amplifier. It shows up as a whine, buzz, or hum through your speakers, often getting worse as your engine revs. The Aerpro AP305A sits inline on your RCA cables and breaks that loop, cleaning up the signal so you get clearer sound. It's a 2-channel unit, meaning it handles both your left and right audio channels at once, and it installs easily with female RCA input and male RCA output connectors, so no cutting or soldering is needed.
Features and benefits
Ground loop noise reduction - cleaner audio signal: The AP305A reduces or removes the interference caused by a ground loop, so your speakers and amplifier play back a cleaner signal without that electrical whine or hum.
Female RCA input - easy connection to your source: The input side uses a female RCA connector, which plugs straight onto your existing male RCA leads coming from the head unit, so there's no need to cut or modify any cables.
Male RCA output - direct connection to your amplifier: The output side uses a male RCA connector, so it plugs directly into your amplifier's RCA inputs without extra adaptors.
2-channel design - covers left and right: It handles both audio channels in one unit, so you only need a single isolator for a standard stereo RCA run instead of two separate units.
Plug and play installation - no soldering required: Because it simply connects inline with your RCA cables, you can fit it yourself without any wiring or soldering, though a professional installer can help if you're not confident working around your car's electronics.
Technical specs
| Specification |
Detail |
| Dimensions |
58mm (W) x 48mm (D) x 30mm (H) |
| Channels |
2-channel |
| Input |
Female RCA |
| Output |
Male RCA |
| Packaging type |
Heatsealed blister |
| Weight |
0.18kg |
Frequently asked questions
What does the Aerpro AP305A actually do?
It's a 2-channel ground loop isolator that reduces or removes the whine or hum caused by a ground loop in your car audio system. You fit it inline between your head unit and amplifier using its female RCA input and male RCA output.
Will I need any tools to install this?
No. The AP305A is a plug and play part, so you simply connect it into your existing RCA cable run. No soldering or cutting is required.
How many channels does it cover?
It's a 2-channel unit, so a single AP305A covers both your left and right audio channels in a standard stereo RCA setup.
What connectors does it use?
It has a female RCA input, which connects to the RCA plugs coming from your head unit, and a male RCA output, which plugs into your amplifier's RCA inputs.
How big is the unit?
It measures 58mm wide by 48mm deep by 30mm high, so it's small enough to tuck away near your amp or head unit wiring. If you have any questions about fitting it to your specific setup, contact us.
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