Amp Cuts out at higher volumes

xxmdfmkxx Silver Member Username: Xxkmfdmxx St. Petersburg, FL USA Post Number: 318 Registered: Oct-04	Posted on Monday, February 14, 2005 - 01:31 GMT A friend of mine is having problems with a MTX amp in his car. Max volume on the HU is 40, When he puts it at like 27 the amp stops giving output, But still remains on, If you put the volume down a couple the sub will come back on. I tried two different grounds and still the same problem. What could be wrong?
Isaac Gold Member Username: Carguy Post Number: 1520 Registered: Nov-04	Posted on Monday, February 14, 2005 - 01:53 GMT Check your gain/level control. It might be set too high. Also check bass boost control too.
xxmdfmkxx Silver Member Username: Xxkmfdmxx St. Petersburg, FL USA Post Number: 319 Registered: Oct-04	Posted on Monday, February 14, 2005 - 02:00 GMT Alright, I had a feeling it had something to do with the gain. I think he had it set at max but not sure. Was set high though.
xxmdfmkxx Silver Member Username: Xxkmfdmxx St. Petersburg, FL USA Post Number: 322 Registered: Oct-04	Posted on Tuesday, February 15, 2005 - 02:47 GMT Lowered the Gain, Still cuts out. Anything else it could be?
lucas beckner Silver Member Username: Lbeckner Tulsa, Ok Usa Post Number: 288 Registered: Oct-04	Posted on Tuesday, February 15, 2005 - 02:48 GMT which amp is it?
xxmdfmkxx Silver Member Username: Xxkmfdmxx St. Petersburg, FL USA Post Number: 323 Registered: Oct-04	Posted on Tuesday, February 15, 2005 - 03:01 GMT MTX 311D
lucas beckner Silver Member Username: Lbeckner Tulsa, Ok Usa Post Number: 289 Registered: Oct-04	Posted on Tuesday, February 15, 2005 - 05:54 GMT What speaker? How many ohms is the speaker? Is it DVC? I think you are overloading the amp. The amp is 2 ohm stable.
xxmdfmkxx Silver Member Username: Xxkmfdmxx St. Petersburg, FL USA Post Number: 324 Registered: Oct-04	Posted on Tuesday, February 15, 2005 - 12:46 GMT Its a DVC 4 ohm sub. I ran the amp in my car for awhile and it worked in mine. But not his.
Isaac Gold Member Username: Carguy Post Number: 1537 Registered: Nov-04	Posted on Tuesday, February 15, 2005 - 14:27 GMT What is the preout voltage on his HU? The average is 4v. Maybe his is higher? Start with the gain at minimum and go slowly up. See at what volume level it shuts down with minimum setting. Are you using rca or speaker level input?
xxmdfmkxx Silver Member Username: Xxkmfdmxx St. Petersburg, FL USA Post Number: 325 Registered: Oct-04	Posted on Tuesday, February 15, 2005 - 15:14 GMT Hes useing RCA. Not sure of the voltage on the HU though. Its a KOSS headunit so its mostlikely average. I'll try that with the gain though.
lucas beckner Silver Member Username: Lbeckner Tulsa, Ok Usa Post Number: 292 Registered: Oct-04	Posted on Tuesday, February 15, 2005 - 21:57 GMT The amp can handle 8v pre-outs. It sounds like the amp has problems.
xxmdfmkxx Silver Member Username: Xxkmfdmxx St. Petersburg, FL USA Post Number: 326 Registered: Oct-04	Posted on Wednesday, February 16, 2005 - 00:03 GMT But the amp works fine in my car, And I tried two different amps in his car and same problem.
lucas beckner Silver Member Username: Lbeckner Tulsa, Ok Usa Post Number: 294 Registered: Oct-04	Posted on Wednesday, February 16, 2005 - 00:47 GMT maybe it is the head unit.
XPLOD Bronze Member Username: Vaio Post Number: 31 Registered: Dec-04	Posted on Wednesday, February 16, 2005 - 00:58 GMT yea it can be the HEad Unit are check your wires to make sure they are good make you ground.

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