I just acquired a Mackie 408m box mixer from a friend. It was in storage for a long time apparently and she had no use for it. I'm planning on using it with powered speakers so i am using the passive main mixer/monitor outputs on the front. When i turn it on i have the following issues: 1. Massive crackling noise from the main eq. When moved it makes a lot of noise. But when placed in the 0db position the noise disappears. 2. The main eq also doesn't appear to work. 3. The LED level meter stays lit up until about the -10db level on the monitor side. When i purposely peak out the mic feed into the monitor out, the meter has movement and shows what seems to be the actual output level. Anyone esle experience issues such as these? I've already opened up the mixer and tried to clean it out as best as i could and used deoxit.

SOURCE: Trying to connect a PMP300 to 2 passive speakers.

Check that the slide switch is up in the MAIN L and MAIN R position.

Check that the PAN pots are all CENTERED.

SOURCE: I have recently acquired an

The speaker connections are on the BACK and are "Speakon" connectors... These are special plugs and these apparently can also accept 1/4 inch plugs. It appears that the MINIMUM impedance should be no less than 4 ohms, NOT 2 ohms. One of the back connectors is for the mains, the other ois for the monitor soeakers. The FRONT connections are line level which doi NOT drive speakers,

SOURCE: hey, i bought a new

I have a 412 speaker that works good at low volume with simlple set up when key boards turn up on mixing board the red peak light comes on and speaker shuts down i think its a protective shut of for overload but very easily triggered have to work with material too find a solution can any one confirm this shut off phenomena