The sub was working just fine then all of a sudden a real loud distortion starts, no matter if i turn it down it stays really loud then cuts out. Now I cant get it to work. The power light stays on and every once in awhile the distortion will come on then nothing again. Any ideas?
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well, hopefully the amplifier was wired correctly. But either way there are so many factors that can cause this problem... But the biggest one is the amplifier must have been sending some distortion to your subwoofers which a subwoofer can take a certain level of distortion and be fine but too much will blow any subwoofer even the highest of high end subs at a high volume... when your subs hit the point of blowing they will tend to just blow out one at a time... they don't just pop both right away. I'd say get the sub that isn't blown off off of the amp before it blows too... distortion is clipping most of the time... when you destroy the subs it will eventually work it's way to the next component in the system which is your amp and then you will be out an amplifier and subs. save yourself the headache.......
The level control controls the input level coming from your head unit (receiver) to the amp.
Your Sony users manual is a little vague on how to best adjust the level and other controls.
Here is one method that some installers use and works well with most amps.
Most 10" subs sound best between about 80-100hz and below, so start out by setting the LPF at about 80hz. The HPF will not be used. Next turn the bass boost and gain all the way down. Turn on the radio and set all tone controls, bass, midrange, treble to flat, usually "0" on most head units. Turn the volume up to approximately 3/4 volume level or just until you begin to hear distortion. Now, back the volume down until the distortion is gone. Next turn up the gain control on the amp until you hear the subs start to distort then back the gain down until the distortion disappears. Next turn the bass boost up again until the subs begin to distort, then either back the bass boost down or back the gain down until the distortion is gone. You may need to play around with the bass boost and gain controls to get exactly the sound you prefer.
Solved it... Turns out it was the connection between my "Tape Out" on my DA10, and "In" on my (Philips) DCC deck that caused some sort of (ground?)loop. Removing this connection solved my problem. Can't believe it took me so long to figure this out! Anyway, i'm very happy with this, since i really love this amp, and i felt really bad about this sudden weird distortion thing. My faith in the Technics brand has been restored, as has my appreciation for this lovely piece of gear :)
I had the exact same thing with my Technics SU-A808 stereo amp, btw.
Hi there guys, i dont have this problem ,but i do have the EN-AT1100 encounter 10" and cant get the thing to work at all. The six pin plug for the power (12V+), earth (GND) and accesories (REM) are all muddled up as i never bough it with the original leads. Can any of you help me out with the wiring on how to connect it? is there two wires for (12V+), two wires for earth (GND) and just one wire for accessories (REM)?
I had the exact same problem. In order to "almost" balance the center with the other channels I had to give the center +12db gain and the other channels -12db. So after I got that far with level calibration I tried some tv sound, well the center although was playing sounded like the highs were missing and a bit distorted. This is the good part, I turned the volume all the way up real fast, somewhere near max something fixed itself, the center became very loud. Now it works just like new. Hope this helps. BTW, the problem existed the same for sub channel, so when the center started working so did the sub.