I had my sae1200 for quite some time. Then got an SAZ1500, planned on getting a dc lvl 4xl, but got a great price on a normal lvl 4, so I went with that and sold the SAZ1500 and started using my sae1200 again.

I've been trying to set the gains with my dmm, But I've run into a problem.

At first I thought it might be the headunit, but I switched headunits and the problem still persists.

When I set my gains with the DMM and the subs not connected to the aim, I set it to 30v, which is down slightly from 1000/sqrt 1

All EQ's and bass boosts are set to 0. Headunit volume set to 23/35, sub volume set to 7/15

When I connect the sub, and play a 50 hz tone, I start the hu volume at 0, then slowly move toward 23. the amp voltage goes from about 1 to 10. At about 17 volume, it reaches 10. Then 1 click after that the voltage jumps to 40.

When I did this with my SAZ, I set the gains according the the procedure I detailed above. Then tested it by playing a 50hz tone with the subs plugged in. And the voltage was almost the same as when the subs were not plugged in.

I've tried several tones, and tried adjusting the subsonic filters and lowpass filter.

What do you think is the problem???

Weird... does it act normally playing music ?

Weird... does it act normally playing music ?

No, the voltage spikes when playing music.

I tested my battery's dc voltage as well, and its putting out a steady 14v with the engine running.

Any idea what the problem could be? I've since unplugged the amp...assuming its not safe to use when the speaker terminal voltage spikes up to 50-70 while playing

Perhaps the gain knob or circuit is messed up -- dB-R may have a better answer, although, this is not an issue I have seen before.

it does sound like some sort of loose connection? just have to start checking all the connections? try removing the gain knob and see if you are having the smae issue? you could just have a short in the gain knob?

I'm not using the gain (bass?) knob. Just the flat-head screw driver-adjusted controls on the amp itself.

All connections outside of the amp are secure. I doubt I'm inclined enough to take the amp apart and analyze the internals.

Is this something that can be taken care of under warranty? The box it came in says tested 6-30-09, so obviously it was bought less than a year ago, I might be able to find the receipt somewhere in my room.

I am sure that if it is a warrenty issue Jacob will get you taken care of!!

Unless it was one of the units sold on e-bay with 90-days you would still be covered.

ok, so how do I go about getting it fixed under warranty?

Send it to dB-R along with your original purchase invoice along with a note describing the problem and stating it is for warranty repair.