Never run an amplifier with a speaker load that’s lower than the rating! or a third amp for the tweeters, or use an amp at all for the tweeters? The subwoofer have rca red and white. Set the multimeter to the Ohms setting. What would be the best combination to get best sound output and “left to left/right to right” sound effect? Hey Marty! Can I connect the tweeters directly as shown in “System 1” together with the front and rear speaker so that there are basically three wires connected to the output? The instructions that came with the amp should describe which terminals to use. Bridging an amplifier cuts the resistance load (measured in ohms) in half, which can cause it to overheat. Also, I have a 4 channel amp and a sub and i want to have 2 front speakers and i sub. You said ch.5, but I do not have 5 channel ☹️, let me know if I fail to understand it correctly. GOSH!!!!!! As I mentioned at the beginning, if you’re using a 4 channel amp to drive both 4 speakers and a subwoofer, you’re going to have to make compromises. Yes you can use that amp and use a Bluetooth receiver, but the ones that will work ok for car use are generally not that great sounding. 3. :). As most modern car amplifiers include very nice optional crossovers, for good sound it’s smart to take advantage of those. For typical amps that’s around 50W-100W/channel for a 4 channel amp. Always be sure to check to be sure. You can save money on the subwoofer and still have excellent bass, so have a look at the Skar or Rockville subwoofers. Thanks. If I treat these as 3 ohm speakers, should I add 25W 2.5 ohm resistors to the circuit to get my 4 ohms to make the amp happy? its doughtful the amp is 1000 watt, It is a 1000 WHAT I'm positive about that. Here are the speaker wiring and speaker (Ohms) loads possible for nearly all amps you’ll run across. If it doesn't then just hook each voice coil to a channel. What this connection does is it combines the power from the two separate channels, doubling your power output. Many thanks for your thoughts on this. I would recommend only using 1 tweeter in parallel with 1 speaker in that case. If not, you’ll need to try connecting the other channels as I mentioned. Set up would be 4 speakers and 1 sub. The amplifier is Pyle PLMRA630BT. Bridging amps is a common process in car stereo systems, as it allows for increasing the amp's power output. The sound quality will be exactly the same. Hello Azizi. You don’t need a large wire as a remote signal uses less than 0.5 amps. Today’s 4 channel (and other) car amplifiers have a minimum speaker load they can handle. With the speaker disconnected, touch the speaker terminals with the meter probes. 2. Treat the voice coil's terminals as they're marked, + as +, - as -. Sub would still be bridged through rear amp channel and head manual says sub volume is controlled through zone 1. Following the example I’ve provided here in the diagram above it’s pretty easy. Will this be fine? The 4th set is capped with little rubber caps. Sound quality will be poor compared to even a budget head unit these days. Realistically, it depends on how hard you drive them. The general range will tell you the Ohms rating of the speaker (Example: 3.6 ohms resistance would mean a 4 ohm speaker), Leftover solder flux or solder coating from manufacturing, Heavy dirt, dusty, or other contaminants that build up over time, Paint or other coatings that don’t conduct electricity, Buy another small amp just for the subwoofer/subwoofers, Run one small subwoofer from each of the rear channels. Car stereo and home speaker speakers are very similar except for the impedance rating they use. The voltage available across amp’s bridged channels working together in a push-pull fashion is: Total voltage: 2 x 14.14V = 28.28V. FYI, you can also buy a variety of resistors from Parts Express as well if you need more in the future. Thank you Jeff that’s very kind of you. If you’re wanting to install a 4 channel amp for 4 speakers and a subwoofer but only have 2 stereo channels available, that’s ok. As shown in my diagram, you can connect 2 channels to a 4 channel amp using either the speaker level inputs wired in parallel or by using RCA “Y” adapter cables. I would like to buy a 5 channel amplifier, to get sound to 4 speakers and one subwoofer. Today’s head units offer Bluetooth, music app controls, EQ functions, and much, much more for under $100. You can also use multiple resistors like this: 2Ω 25W + 2Ω 25W = equivalent of a 4Ω 50W. I would set the output levels on the SLC4 to about 75% and see how that works out for you. Most good 5 channel amps today meet or exceed this, though. I’m from Malaysia. Hooking up one wire from one sub's positive to the opposites sub's negative, then taking seperate wires from the open positive and negative of both sub's and running them to the amp in mono. – JBL Co-axial (rear) Love the period look but it’s almost inaudible after 40mph due to the road and wind noise so need more volume. For your amp you can just set the 2/4 channel amp switch to the “2” position, then bridge 2 channels and set the low-pass crossover. Sorry to jump around like that with the questions. You just saved me so much heartache, time spent, and money. If your stereo doesn’t have output channels that’s ok! System 2: 2 speakers in parallel to each front channel = 2 Ohms x 2 + 1 subwoofer wired for 4 or 2 Ohms on the rear channels bridged for more power. I like this deck basically because it has separate bass and treble & Blue tooth. Wire each sub's coils in series ... wire one pos and one neg together on each sub. Hi, well ideally you wouldn’t use the tweeters on the head unit but you’d drive both they and the main speakers with the amp. I’m not sure where to plug those into the RCA ports. Most of the stuff online is either not enough or just plain BS that a seller would write. For example, a 2-channel amplifier rated for 75 watts RMS per channel at 4 ohms may be able to put out as much as 200 watts at 4 ohms into one channel when bridged, which can be very convenient for powering a subwoofer. Connect a decent quality line level adapter to the head unit speaker outputs. • Rear door speakers + rear deck speakers -> rear amp channels. You name it. The best thing to do in my opinion is just disconnect the coaxial speakers. Likewise for the right channel speakers on ch. Some factory systems make it hard to find a +12V standard wire. You’ll need to bridge 2 channels in order to have enough power to drive a subwoofer well. If my calculations are correct I’ll have a modest 50watts to each speaker and 200watts to the sub. Just not sure about the RCA connection from the head unit to the amp. Additionally, I see that the Kenwood head unit has subwoofer outputs so you may be able to turn that signal down as well. 2 & ch. You don’t have to repay me, but I do appreciate that offer. It’s 4 channel with only speaker line out (no rca). 4 channel amps that handle 2 ohms bridged are less common but they are out there. Diagram showing how a car amplifier’s Ohm rating works with speakers. Hi George! 5” that was a typo (error). The best thing to do for most of my customers was to use an under-dash kit like this Metra 99-9000 kit I use for installations. The owner’s manual says 4 ohms but after I read your comment I checked Pioneer’s web site and it confirms the 2 ohm rating: 45 watts x 4 at 2-ohms with <1% THD+N. Thx! Plan is to use Setup#1 as shown with (4)Alpine SPS-M601W 4 ohm speakers in parallel. Always be sure to check your speakers before you wire them to your amp to be sure they’re compatible. I now connected the front speakers and tweeters to a 2-way-crossover. : Use only ONE of the two connections shown. If you’re wiring 4 speakers and a subwoofer to a 4 channel amp, by adding 60 ohm resistors to the rear speakers you’ll drop the volume by 24dB (decibels). Be sure to touch bare metal on the terminals and make good contact. With the underdash kit, you can remove the stereo if you sell your car later. If I consider doing Option #1, will it be fine considering all my speakers are rated 4Ω. Let’s get a few things out of the way before we go any further. You’ll also need to pick up a 2nd pair of RCA cables (if using them) and maybe some extra speaker wire, too. Once the speakers are hooked up, there will be a switch marked Stereo, Mono, or Bridged. JVC KD-T710BT Yes, ordinarily if you’re not using the front & rear fader ability it wouldn’t matter really which is connected to chs. 1 & 2 on the amp for that. Dear Marty thank you for your reply. All Rights Reserved. An amp with built-in Bluetooth receiver will be better (Rockville and some other brands have some good ones that can run your whole system). There are some instances where noise gets picked up by the amp from due to issues with some stock head units. How would the connection radio to amplifier be if the radio doesn’t have a channel output for the sub? Otherwise, set it to the lowest setting like the 10 Ohms or 200 Ohms range, etc. (Usually though this isn’t necessary). For everyday listening it will probably be fine, but if you’re wanting the best musical clarity especially at higher volumes you would do best to use 4 ohm tweeters instead. Also the specific Auditor model number is not listed either so I’ll go by the standard suggestion here: 1. I’ve seen a few instances of odd problems when using speaker-level inputs, however, so it’s not unheard of. My mistake. The good thing is that all you really need to know is roughly what the resistance of a speaker is. First, regarding the resistor question, it’s not practical to use them with subwoofers because of the larger power levels. Thanks Marty. If your CD player has a line output, you are not going to be able to bridge it. Hi Marty, But that’s ok. I have an active subwoofer Pioneer Ts-WX120a. Hi Jeff. Replace the original radio with an aftermarket one (this is harder and may require cutting the dash), or 2. use an underdash kit like this one from Metra to allow you to add an aftermarket one fairly easily. My car Audio configuration is as below: Im opposed to only running one coil on a DVC sub. I’ve also got some great guides ready, too, if you’d like more ideas: Need advice on finding the right installation wiring? I hope you enjoy your music! This article has been viewed 907,689 times. What is best way to connect RCAs to Amp? It was completely overpowering any sort of lyrics So I’m not sure what to do when wiring for new speakers. Rockville RVB12.1A 12″ powered subwoofer. By using this service, some information may be shared with YouTube. If connected properly the issue should be eliminated. That’s especially the case for some older “old school” amps you might have in your closet but still like to use. I usually recommend a minimum of 50W RMS/channel for amps driving full-range speakers, and yours will be able to drive 2 speakers per channel with 55W each. I’ll describe 3 main system setups which I’ll cover in detail. Can I give you good press somehow? Hi. Ch B – Connect sub I’m not sure which amp you have but here’s how: 1. (You can also get a double DIN version of the kit and use ANY head unit.). Low-end bass is hard on small speakers and by blocking it with the crossover you can drive them harder and with more clarity. Bridged mode is a flexible way to get more power from 2 channels (in this case the rear channels, for example). I’ve also ordered a Rockville SS8P 8″ self powered sub to add to the mix but it won’t need power from the Pioneer amp. 6 speakers 4 channel amp wiring diagram – A Beginner s Guide to Circuit Diagrams. Personally I would recommend sticking with 1 speaker + 1 tweeter (or 2 speakers instead) unless you use 2-way crossovers. It won’t hurt anything but 8 ohms subwoofers are best suited for home amps & not car amps. Two sets lead over to the amplifier (the ones I mentioned previously). 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