You need to be very carefull with this job as there are risks of injury.
With a sturdy box cutter carefully make repeated passes with the tip of the (long) blade between the wood case and the front cover. It will only penetrate 3/16 to 1/4 in when finished. You will feel it when you reach plastic through the glue. When you are satisfied that all the glue between the side of the box and the cover is sliced, insert a flat tip screwdriver between the power cord and the wood frame to pry the cover off. Work slowly around the buttom so the marring in the plastic does not show too much. (yes you cannot avoid it) And be carefull that it does not shut closed on your fingers. Once you have some space opened you can use a flat blade to keep it open while you work around the other sides. A long flat tip screwdriver can be used to reach the opposite side to pry from the inside.
To remove the PCB from the front cover pry off the connector cover from the side of the front cover then pry that side away from the knobs to be able to lift the board straight out. It does not come our at an angle. Good luck and be carefull with the knife.
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Looking for the Best Car Amplifier of 2016? ... And if you are going to add a subwoofer, a monoblock amp is an absolute necessity. ..... Two-channel A/B ZRX516.2, 500 watts; Four-channel A/B ZRX616.4, 600 watts; Four-channel ... (PCBs) that can perform under the most rigid and extreme conditions attesting to the brand's ...
Oct 13, 2012 - 12 posts - 1 author
I'm new to both the forum and somewhat new to car audio in general so please excuse any ... So i need a great sub and amp to complement them for around $500. ..... other subs for under 200 bucks id rther have over type r
Whether you're looking for an amplifier to power your entire cars component speaker ... power outputs come in 3 settings (of 800 watts, 500 wats, and 300 watts ). ... Rockford Fosgate R750-10 Class D 4-Channel Subwoofer Amplifier ... Talk about power when it comes to getting some serious knocking under the trunk.
looking at the manual i would assume that the mid-large box is actually your
Did you mean
that there are no connections left on the back of your amplifier? For a centre
speaker this system uses all passive speakers apart from the subwoofer which
has a built in amplifier for just the subwoofer, your hifi or home cinema
amplifier would need to have at least 5 separate channels to operate the centre
speaker as well as the front and rear speakers.
would need a 5.1 channel or 5 channel amplifier with subwoofer pre output, any
would do but to make things simple one with a digital optical or coaxial input
would be best as this can easily carry multi-channel audio with just one
alternative if your amplifier does not have a centre speaker output are:
get another basic mono stereo amplifier to power the centre speaker on its own however
if your main amplifier does not have a pre out connector for a centre speaker
you will have to change the volume independently on both amplifiers
The amplifier that drives the built in subwoofer has stopped working. The first thing to do is check that the power cord is plugged in to a live power outlet. Next, replace the fuse which you'll find on the large black metal plate on the back of the speaker. Use only the size and type fuse specified. If that does not work contact Definitive customer service at (800) 228-7148.
no problem with replacing all speakers with ones that are compatable wth you new amp .. and that means the the speaker impedance has to be wtihin the range of what the amp can drive (like 4 ohm, 8 ohm, 16 ohm) .... the subwoofer needs inputs from both left and right channels .. it also needs its own amplifier and low pass filter .. this all may be built into your after market amplifier .. if so you will have an output marked sub (that will directly drive the subwoofer) .. or you may have a low level outdput marked sub that goes to your subwoofer amplifier if it has one .. .. sometimes the woofer has its own built in amplifier and filter .. it then just needs power and inputs from each channel .. since you are running 500 watt speakers, they likely already have a subwoofer component .. (speakers that extend down to 20 hz or lower .) if so, you may not need an additional sub-woofer .. just make sure all the speakers are phased correctly .. (wired to work together not fighting each other ..) .... an amplifier capable of driving 500 watt speakers can draw peak currents that are very high .. so power wiring would have to be very heavy and preferably go directly to the battery with an inline fuse right at the battery ..
If you have a digital tester just select DC voltage then connect the positive leads of the digital tester to any of the wire coming out of the 18V adapter (WARNING do not connect to the wire connected to the main) and then the other lead of the digital tester which is the negative connected to the other wire of the 18V adaptor. If in the screen of the digital adapter reads a negative value, then it indicates that the other wire is the negative and the other is positive. Otherwise if the tester reads a positive value then your tester's leads have got the right connection.
P.S. please rate me.
Most AV receivers do not have a built in amplifier block to drive a subwoofer, and merely provide the subwoofer output channel at line voltage. Thus, a powered subwoofer is required.
Does the subwoofer require mains power? From your description, I'm guessing it doesn't.
If not, it does not have a buit in amplifier, you will need to purchase a monoblock amplifier, which is just a mono amplifier with a volume control, no tone controls or anything else. Make sure that the amplifier power rating is as close as possible to the subwoofer power rating, as it is quite possible to blow a speaker by using an amplifier whose power output is too low, by overdriving the amplifier , and putting DC through the voice coil when the amplifier clips.
If it does require mains power, it will have an amplifier built in, but does not have line level inputs.