Hum may be ground loop related. Try lifting the ground connection at the speaker end of the signal cable if it is a balanced signal cable. Check any input changes carefully by first turning down the volume control, plugging and unplugging cables, or lifting the shield ground at the speaker end.

Check to make sure light dimmers are not on the same circuit as the PR 10P, the mixer or any source devices. If light dimmers are used, then it may be necessary to turn them full ON or full OFF to eliminate or reduce hum. This is a typical AC wiring/light dimmer interference problem, and not a design flaw of the PR 10P. The third wire (ground plug) on the AC plug should NEVER be removed or broken off.

Distorted or Fuzzy Sound

First, ensure the mixer (signal source) is not clipping or being overdriven. Make sure the volume control/s

(7) and (9) on the PR 10P have not been set too low.

Check that the input plugs are fully seated in the input jacks (5) and (8) on the rear panel of the PR 10P. Ensure that the proper MIC/LINE PAD setting is being used (6) for line-level signals, or that a power amp has not been plugged into one of the input jacks of the PR 10P.

If an extension cord is being used to provide the AC power to the unit, ensure that it is of sufficient current capacity and that it is not also being used to supply power to any other device.

The PR 10P has built-in EQ to extend and smooth the natural response of the speakers in the system. Bass boost and HF EQ have been applied and the system has a nominally flat response, so it should require little, if any, additional EQ. If excessive additional bass boost or HF boost have been added externally to the PR 10P, it could cause premature overload at high SPL. Reducing the amount of any external (mixer, rack) EQ and see if that clears up the distortion.

Finally, realize that even though the PR 10P is a powerful and high output unit, it does ultimately have limits, and it may need additional powered units (or a subwoofer) to provide enough sound output or coverage. In this case, try turning the mixer levels down a little to see if that clears things up.

If, after checking all the things listed to check and anything else you can think of to check safely, and the system still exhibits problems, carefully note all conditions and check with your Peavey dealer for advice.

Care and Maintenance

Your PR 10P is a sturdy and durable product and will provide years of reliable use if properly cared for. Use common sense and read the safety warnings to avoid hazardous operating conditions.

The unit must be disconnected from the AC power source before any work is done on it. Refer all servicing to qualified service personnel.

Sunlight/Heat

Avoid prolonged exposure to direct sunlight, as this may cause the unit to overheat and thermally shut off. Excessively hot operating conditions can also cause a thermal shutdown.

Do not store in extremely hot or cold conditions,or extremely high humidity. Always allow unit to come to room temperature before use.

Cleaning

Never clean the PR 10P while plugged in or turned ON! When the unit has been fully disconnected from AC power sources, use a dry cloth to remove soil or other dirt. Never use strong solvents on the PR 10P, as they could damage the cabinet. Do not allow ANY fluids to drip inside the PR 10P.

Touchup

For an overall finish enhancement and protective coating, use gloves to apply a plastic finish protector, such as Armor-All®protectant, to the surface of the plastic cabinet only. Note that the cabinet will be slippery after these treatments, rub them down vigorously with a dry, lint-free cloth to minimize this.

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Peavey 10P manual Distorted or Fuzzy Sound