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you may have a bad switch. sometimes if a switch does not close completely, the microprocessor thinks it is getting a command and will not respond to anything else, locking it up.
most active subbs are desinged to shut off untill they are needed ( extreem bass injection) then they come on try setting your sensitivity to low or off
Hello saini_jatt_2,
On the JBL3501 700 watt monoblock, you have adjustments for low pass and a setting for boost marked DBO, allowing you to select and boost the frequencies sent to the subs. If your amp is not the 3501, but a different JBL amp, the settings may be different.
Set the LP to either the white dot (about 100Hz) or slightly below to about 80Hz. Set the HP to about midscale or slightly higher. Set the boost to wherever the bass sounds best.
One other setting that will affect bass volume is the "input level" or gain control. It should have been properly set by your installer, but you can "tweak" it for best performance. Turning it up increases the sensitivity and matches it with the output from your head unit. Too high will cause distortion. Too low will result in less bass. So you want to set it just to the point that you begin to hear the distortion and then back it off slightly until the distortion disappears.
Hope this helps.
You dont have to crank up the volume to hear the bass man. It sounds like you have a bad connection some where. check all your connections and also if the wires are shinning and not dull at the connection point. having carbon or dust there will not help.
use the speakers it came with it works fine for me i have mine hooked up to a 300w inverter anything less i dont get the best sound you cant turn the volume up too loud on the reciever it will draw too much power and shut it off or blow the fuse in you car unless the inverter you are using has an external fuse on it my inverter warns me that i am drawing to much power so when i hear the beep i turn it down a notch and works fine but ya try using the speakers th system came with
Sometimes an amplifier's preamp can't handle certain signals/frequencies at a high gain, so they cut out. Bass guitars are especially prone to giving such a strong signal. I bought an older, nonworking bass amp recently and fixed it just to find it had the same problem. Best solution is to put a low ohm resistor at the amps input, but if you turn your guitar down to half volume it'll have the same effect: should prevent it from cutting out.
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