It supplies +12V when the stereo is turned on. It’s slightly more work than #1, but looks wonderful and it also avoids subjecting the amplifier to extreme vibration like when mounted to a subwoofer box. Rms stands for square root of the average of square. We will start with wiring the power from the battery. You don’t have to run separate remote wires. 12″ or less of wire length, as that’s a general rule used to make sure there’s not enough wire to possibly be in a short-circuit without fuse protection which could cause a battery explosion or cause your vehicle to catch on fire. Did you make this project? What I recommend you do is to troubleshoot the mono amp by checking that it has a proper power voltage (+11-12V) and ground. Follow my advice here to be better prepared and take your installation one step at a time. Look for a good combination of price, power rating, and features. Don’t think so? I have 2 Alpine R-W 12D2 subs and want to connect to a sound Extreme 2 ST 2500.I want best sound quality so I want to end up with 4 ohm.Do I bridge the + and – on the sub terminals then wire in parallel or series parallel? They’re often a lower voltage or are a data signal bus and can’t be used for this purpose. Power from the fuse box often is "unclean" and you may hear your engine noise amplified through your speakers. It doesn’t take very much for a pinched, unprotected wire to start melting the insulation and for a fire to start. Whatever you do, don’t feel intimidated. +12v 12v Pwr PowerConnect the 16 to 18 gauge wire into the spot that says: Rem. For your set-up, just use one set of terminals. There may be 2 channels. This moisture causes the metalwork of the car to rust. I saw this many times, and it’s incredibly disappointing to see. Wire the in-line fuse to this end (if it is not part of the wire already). At each pair of speaker wires or near the speaker wire connector, strip off about 1/2″ of insulation and tap off it. After connecting the power wire, remote wire, and signal wire move it down to the same side of the car (as needed) and when the wire comes together use zip ties (also called “wire ties”) to neatly hold it all together. However, the board mounting idea looks much better and means you can mount your amp out of the way in many cases. For option #2 you can buy a nice speaker box carpet or a dark fabric from Joann or some other fabric/crafts store and cover the board using an adhesive spray and/or a stapler, then mount it using brackets or car stereo straps. a very helpful guide with several of the best amp wiring kits here. Read this guide about why you should a subwoofer in your car. Additionally, they’re a great choice for people who may later change vehicles especially people who own leased cars. I’ve covered this topic and show some great examples here, click here to get the .pdf you can view or print. I hope my guide has provided a lot of helpful information. I can’t find the specs for the bridged mode but I assume it’s 2 ohm stable bridged. Make sure you tape the place where you wired the fuse to the wire, so you don't get a short. I chose a hole that was behind my glove box and was fairly easy to get to from the engine compartment. Hello , I just upgraded mono amp with single subwoofer and not getting sound. If you’re going through a factory wiring harness seal as pictured in the 1st pic, push it through until you can grab the wire and then from there pull it through the engine compartment. If there are 2 wires, there should be one labeled Amp. If you know in detail how to install a car subwoofer, you won’t need to depend on anyone to meet up with your demands. Pos. Both types of amplifiers have their pros and cons to consider. (Since you’re not using the speaker outputs of the head unit).

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