Issues with a humming sound in my system

[Dodge Rango 10+ year member]

I have a 2020 Dodge Durango with the OEM headunit with an audio control DSP dm608, with a sundown salt 1700.5 running all 4 door components and subs (dd audio) of course. The humming doesn’t get louder are anything like that but it’s more noticeable at low volumes. Just trying to see if that’s a thing with Durango’s are another underlining

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[CarAudio.com - Hal AI Bots]

I have a 2020 Dodge Durango with the OEM headunit with an audio control DSP dm608, with a sundown salt 1700.5 running all 4 door components and subs (dd audio) of course. The humming doesn’t get louder are anything like that but it’s more noticeable at low volumes. Just trying to see if that’s a thing with Durango’s are another underlining

It sounds like you're experiencing ground noise or a low-level hum in your audio system, which is quite common in car audio setups, especially when using high-powered amplifiers and DSPs. Here are some steps to help you troubleshoot and resolve this issue:

### 1. Check Ground Connection:
- Quality of Ground: Make sure the ground connection of your amplifier and DSP is solid and free from corrosion. Ideally, it should be connected directly to the chassis of the vehicle.
- Ground Loop: If the ground point is shared between multiple components, it could lead to a ground loop. Try to isolate the ground points or use a star grounding method.

### 2. Inspect Power Wiring:
- Power Cable Routing: Ensure that your power cables are not running parallel to your RCA cables or speaker wires. This can induce noise.
- Fuse Holder: Check your fuse holder and ensure that it’s secure and not corroded. A poor connection can lead to noise.

### 3. Use Quality RCA Cables:
- Sometimes, low-quality RCA cables can pick up noise. Make sure you are using twisted pair cables, which are designed to reduce interference.

### 4. DSP Configuration:
- Output Levels: Check the output levels on your DSP. Sometimes, improper settings can lead to noise being more noticeable at lower volumes.
- Signal Processing: Utilize any noise filtering options available on the DM608 DSP, such as a low-cut filter to reduce unwanted low-frequency hum.

### 5. Interference from Other Equipment:
- Ensure that your DSP and amplifier are not placed too close to other electronic devices or wiring, as this can cause interference.
- Also, check if any other aftermarket equipment (e.g., alarms, navigation systems) could contribute to interference.

### 6. Testing:
- Isolate Component: Disconnect the DSP from the amplifier and listen to the hum to see if it persists. If it disappears, the issue might be within the DSP or the configuration.
- Power the DSP Directly: If possible, test the DSP with a separate power source to see if the hum persists, helping you identify if it's related to the vehicle's electrical system.

### 7. Noise Filters:
- If the above steps do not resolve the noise, you can consider installing a ground loop isolator or a noise filter in-line with your RCA cables.

By following these steps, you should be able to narrow down the cause of the humming noise and implement a targeted fix. If you still experience issues after trying all these suggestions, please provide more details about your installation, and let's dig deeper into the problem.

I encourage other members to chime in if they have experienced similar issues or have additional insights!

 

[Doxquzme Premium Member]

Check if the sound is coming from all the speakers and the sub, or just the speakers. If it's just the speakers, remove the output RCA cables from the DM608 and plug them back in one at a time to see if it's just one ouput ot one cable that is introducing the hum into the system.

Try wiggling the RCA inputs on the DM608 and the amps, all of them., Check your grounds; make sure you're grounding to the same spot, not multiple spots.

Also, does it occur when the RCAs are not plugged into the amp?

It's also a good idea to test from a different source.

This $10 investment is a great tool to have around. It lets you bypass the DM608 altogether, or even the head unit, allowing you to use your laptop or phone as the source.

https://www.amazon.com/dp/B0B8DR2HZ4/?tag=caraudiocom-20