Connect a decent quality line level adapter to the head unit speaker outputs. That’s awesome, Cody, & thanks for letting me know! Hi John. There’s a good chance the front speakers (amp-driven) will not change in volume proportionately with the rear (radio-driven) speakers when you turn up the radio’s volume. They’re packed with a ton of controls including a 13-band EQ and good sound. Thanks. Hi Marty, my radio has rear and front channels (4 in total). – For sure, make sure all the speaker connections are wired the same way (each speakers positive and negative connections are the same from the amp) or you can have cancellation which hurts the sound a lot. What this connection does is it combines the power from the two separate channels, doubling your power output. You’re welcome. It doesn’t look like it has an EQ built-in, which would have been helpful. More than likely it won’t be a problem. It’s 4 channel with only speaker line out (no rca). It’s a lot better to start on the right foot and be ready at installation time. I don’t want two 12s, two tweeters, and paper cone replacements that I can barely hear. The 4th set is capped with little rubber caps. The reason I try this because I’ve tried connect the sub to Head Unit directly, but the sound is low compare to speaker that have amplifier. Read on to find out how! My mistake. Bridging the channels increases the power output. Shown: Example of a 4-channel amp bridged to 2 channels. If it can be bridged to a 2 channel mode the instructions will say so. Can I bridge amp mids and highs speakers? While two-channel amps are a good option, I prefer to run a monoblock amplifier system. If using speaker level inputs on the amp, use the connections shown above. Never run an amplifier with a speaker load that’s lower than the rating! I can’t stress enough how important it is to be ready to install your 4 channel amp. My best advice would be to forget about using the original radio for several reasons. However, as crazy as it sounds, some speakers don’t! 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. I am 48 and no stranger to connecting amps and subs. Avoid making embarrassing mistakes on Zoom! I don’t know if it is really possible.)? In that case, unfortunately, you’re really limited. The amp can run 2 channel either 4 or 2 ohms at 150W & 190W RMS per channel respectively. Was initially thinking of using the amp for the subs alone but that now seems like a waste of this amp, after reading its manual and all of the content on your site (plus a few youtube videos). You’ll get a LOT more for your money using a good head unit rather than an amp with Bluetooth built in. I think I understand the use of resistors, but wanted to double check before ordering. I’m still using the factory head unit (Fujitsu Ten, no Harmon Kardon). Be sure to touch bare metal on the terminals and make good contact. Thanks for your help. Ok, these may not be available where you are, but they’re good examples of what I’m referring to: You have to decide which speakers you’d like to use, as you’re trying to drive too many speakers from one amp. When this happens the result is that you’ll get substantially more power with them working together than you would with one channel alone. That should take care of it. To measure the Ohms (resistance) of a speaker’s voice coil, hold the meter probes to the speaker terminals, making sure to keep firm contact to bare metal Paint, insulation, dirt, and solder flux can mess up your reading otherwise. Always be sure to check your speakers before you wire them to your amp to be sure they’re compatible. – Kenwood HU with 2 P/O Today’s 4 channel (and other) car amplifiers have a minimum speaker load they can handle. Hi Michael. 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. How do I connect sub? However, if the amp has a high pass crossover built in that’s better for a number of reasons. 2 speaker-level inputs. Things like the following can cause problems (I have seen this happen many times! Ch B – Connect sub To clarify, you cannot bridge a monoblock amplifier! the amp is still seeing a 4 ohm subwoofer and is only going to provide 75W to the sub. However, should you add another amp later, according to the Fusion manual you can link Zones 1 & 2 so they’re controlled by the same volume adjustment. 4 channel amps with a minimum speaker load of 2 ohms in stereo, 4 ohms bridged (for the subwoofer), 4 channel amps with a minimum speaker load of 2 ohms in either stereo, 4 channel amps with a minimum speaker load of 4 ohms. if there is a 1000 watt 4 ohm voice coil, then when wired to 2 ohms, it can take 500 omhs, when wired down to 1 ohm, it can only take 250 watts @ 1 ohm. My head unit is a sony cdx-1200u if that helps. They’re also a great buy used too. The amp is 4 channel. But I want to know if it will damage the amp or the active subwoofer. By using our site, you agree to our. The good thing is you’ll be fine with your amp. Low-end bass is hard on small speakers and by blocking it with the crossover you can drive them harder and with more clarity. This is more commonly used with IC power amplifiers where it is desired to have a system capable of generating large power into the rated load impedance (i.e., the load impedance used is the one specified for a single amplifier) without exceeding the power dissipation per amplifier. The amp and subs I basically got for free and just bought her the new deck. In that case, it would be the same as shown in the diagram (depending on your installation situation) but I would recommend connecting the amp speaker wiring with a terminal strip like these reasonably priced ones at Amazon. Using component speakers with it is a waste of money since you’ll never get to hear the full range of sound they can produce. Diagram showing how a car amplifier’s Ohm rating works with speakers. Have a good day. The 8 ohm subs aren’t optimal but will get you by for now until you are ready to swap them for something decent in a 4Ω model. Actually 8 ohm speakers aren’t a good idea, as you’ll never develop full power to them vs using 4 or 2 ohm versions. a 4 ohm sub is going to be 4 ohm, no matter what you do to the amp. Is that possible? ): If in doubt, you can rub them gently with a bit of sandpaper or even scratch the meter probes against the terminals to make better electrical contact. You can also use multiple resistors like this: 2Ω 25W + 2Ω 25W = equivalent of a 4Ω 50W. There aren’t enough channels to have both the proper power & channels you need and drive a subwoofer. Sound quality will be poor compared to even a budget head unit these days. That should be enough in most cases: Not totally silent in the rear, but most of the volume towards the front speakers. Otherwise, you could hopefully find the owner’s manual online. Thanks. Copyright © 2017-2021 SoundCertified.com. However, it’s worth a try to see what you think & if it works for you! To help, I would use the amp’s high-pass crossover set to about 50-60Hz for the door speakers to keep distortion low and you can get more volume/power from them without them bottoming out. You’ll need to bridge 2 channels in order to have enough power to drive a subwoofer well. There are 6 RCA ports. I’m not sure where to plug those into the RCA ports. So i originally had the 4 Channel amp in the car the Clarion XR2420 Running just the extra Sub woofer in the trunk. It sounds to me like I’m over doing it. How can I connect 2 woofers to a 4 channel amp? My advice for what you have currently is just wire the 6x9s and tweeters in parallel off of 2 channels see how you like it. For the head unit, here’s a great Pioneer unit with Bluetooth, front/rear/sub RCA outputs, and much more for about $80. First I want to say, thank you for this site! The rating shown on the amp or in the owner’s manual serves as a warning. I also replaced the 4 door speakers with Pioneer TS-A652F 6.5 3 way speakers, and a kicker pt250 BassStation 10″ powered sub. How would the connection radio to amplifier be if the radio doesn’t have a channel output for the sub? Likewise for the right channel speakers on ch. That’s something useful to keep in mind. I now connected the front speakers and tweeters to a 2-way-crossover. Can I combine two channel amplifiers and bridge them to combine the RMS so that I get more wattage? It indicates the point at which you would normally have your amplifier for your main speakers start being full power. However, usually the bridged wiring is labeled on the amp itself. Basically, the main process is the same for every single channel. Of the three choices, I think #2 and #3 are the ones you’d (most likely) be happy with. – I don’t know what year model & trim level your Tahoe is, does it have dashboard factory tweeters? I’m replacing a 6-channel amplifier with a new 6-channel amplifier. Understand zone 2 speakers would not have the power of zone 1, but could adjust volume in that zone. is this correct? Hmm, that’s an odd issue you’re having. (Example: two 4Ω speakers on a 50W/channel amp will now be able to get only get up to 25W each). I’m leaving the factory unit in there. Then the same for the right channels. That’s important because amps are designed for a certain minimum speaker load (Ohms rating). Hi Marcus. If you can send me the amp model number I can check. I'd love to help everyone find answers to their questions & enjoy good sound. And run a separate amp. Honestly, the best thing to do at this point is to get a good quality line-level converter. – Infinity Components speakers (front) I was reading and sounds like I can bridge the amp to add a single sub as Marty described above, but was hoping could add 2 subs?? This can put too much strain on your alternator or speaker. L & R Rear and 2 for the sub. Connect the ch. Yes, that amp does support two 4 ohm speakers in parallel as a 2 ohm load, so yes option #1 would work if you think you’re ok with that. Your write ups are very informative. How To Wire A 4 Channel Amp To 4 Speakers And A Sub: A Detailed Guide With Diagrams. You can always change it later if you’d like. I also want to connect the remaining 2 channels to my midrange speaker.My question is…is there any possible way to know the output power of the remaining channels.I really don’t want to fry my mid range speakers. Car and home speakers are rated by their general Ohms (impedance) rating. Thank you Marty, I’ll go as per the suggestion you provided ? As I mentioned above, most car amps today can handle a 2 ohm load per stereo channel (left & right channels) and 4 ohms minimum when bridged to drive an amplifier (called “mono”). Hi Ryan. You would wire it according to the factory wiring colors (you can usually find these online) and match them to the amp’s speaker wiring labels. MY. Thanks (Sub is Fusion MS-SW10). Very few people drive their speakers at full power/full volume. Should I also bump up the wattage of the other two resistors for the 6 X 9’s to 50W 4 ohm? Would really like it to sound great/clear with some serious bass too, and would spend a little more to achieve this. 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. Ah ok I didn’t know you weren’t in the USA. Just not sure about the RCA connection from the head unit to the amp. • Front tweeters + front door speakers -> front amp channels Im opposed to only running one coil on a DVC sub. Never connect both the speaker level and RCA jacks at the same time – speaker level signals can damage your head unit’s RCA outputs. ( But connected on the front channel of the stock stereo. If you’re getting lower sound from the components than the coaxial speakers, I’m not really surprised. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. So once you start cranking up the volume the tweeter output level won’t match that of the other speakers unfortunately. I’ve seen a few instances of odd problems when using speaker-level inputs, however, so it’s not unheard of. You name it. Generally speaking, though, if there aren’t dedicated subwoofer input RCA jacks then it is derived from one (or more) of the input pairs. Thanks for the quick reply. Many thanks for your thoughts on this. 2. My final question would be if I now need/can remove the in-line-crossover of the tweeters, since I now, without removing them, I hear some noise from them. 5” that was a typo (error). If it doesn't then just hook each voice coil to a channel. With the second method do i have stereo sound? Well, you’d need a decent amp (and a 2 ohm stable one) to run all 4 speakers and a sub off on just one. Hopefully the 10″ speakers will sound like you hope; if not, you may need to get some dedicated subwoofers and/or a better amp with a low-pass crossover. Below is the specification of the amp. The good news is that not only can you do it, but it’s also not hard to do. Thanks! You would use the setup shown in system #1 in my diagram. How do I bridge three subwoofers to a four channel amp to get the most power? switch or RCA Y adapters), then back from the amp to the factory front speaker wiring as I mention in the article (easier doing it at the dash). Hi. I have a 2 channel head unit without rca output. I looked at the diagram again and am convinced I did it wrong. Thank you sir. Great info sharing – appreciated! Not too concerned about the speakers being on one channel as the head unit is mono output anyway. To channel 3, I’ve attached the upper left side speakers You don’t have to repay me, but I do appreciate that offer. It’s a 96 Honda Accord My suggestion in this case would be to use a line level converter like I used in my old Accord, the Scosche SLC4 seen here, which is a really good one. Use channels 1 and 2 for main Left and Right and bridge the remaining channels for the subwoofer. I would guess one RCA to channel 3 and one RCA to channel 4 then from sub woofer positive speaker wire to channel 3 and negative speaker wire to channel 4 on amp? It will be in the general range and close to its advertised rating, however. I wouldn’t use a 4 channel amp with less than 150W RMS bridged. I want to connect 4 door speakers and a sub as shown in your #1 figure. The resistance you measure from a speaker is due to the voice coil’s resistance thanks to the long wire it’s made of. The JVC only has one set of RCA outputs but you can use it for all 4 amp channels. However, they’re intended for use with 4 speakers or 2 speakers and a sub – not both. but i am lost when its coming to wiring the speakers to this amp. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. The GM-D1004 is rated for down to 2 ohms in stereo mode, actually, but that shouldn’t matter in this case. Normally, an amplifier may consist up to 4 channels. You didn’t specify the amp model so I’m not sure which one you have.). Marty, I have been searching all over the internet for help with my amplifier in my boat. I’m very glad fast response from you. So you’d go from the JVC to the amp’s RCA inputs (2/4 ch. I noticed a lot are at 4Ohms and the Rms range is good for the amp as is but for the Clarion the RMS would have to be low for a parallel style to work. • New front tweeters Using the subwoofer output of the Sony isn’t mandatory but you’ll have more control options you can adjust from the dashboard rather than at the amp itself. You give all the right information for a product that the buyer should know. The problem is that each 8 ohm subwoofer will develop 1/2 the power a single 4 ohm model would so it works out about the same as using only one. Yes that’s right, or just use a wiring harness adapter so you don’t have to cut the factory wiring. Regarding your question, a Google search resulted in this: “The SLC-4 is the EXACT same things as the FAI-3… its just that one is almost exclusively sold in Wal-Mart, while the other is available to all retailers.”. Soundstream Reference REF4.920 4 channel amp If you’re set on using a single 4 channel amp, I would go: – There’s another option: Use the front and rear channels for the 4 front and rear speakers, then pick up an affordable powered subwoofer. Would I need to have a RCA y from the radio to the amplifier? That’s probably going to be easier, plus if you want to remove the amp later and sell the car etc it’ll make that easier, too. Ch A – Connect all 4 speakers, front and rear speakers in parallel ( speaker ratings 4 ohms each ) Here’s a suggestion to start with regarding the front & rear speakers: As the Civic is supposed to use 6.5″ speakers, here’s a 4-speaker set of Polk DB651 coaxial speakers with silk composite tweeters that will give very nice sound. Higher is better, of course, but it will sound ok with good subs in good boxes with at least 150W. Hello, Shubby. However, neither of those options are the best. Here’s an example of a good budget powered subwoofer: Rockville RVB12.1A 12″ powered subwoofer. – You said you’ve got a 4 channel amp but I assume you’re using it with the pair of RCAs from the Pioneer? This article has been viewed 907,689 times. Also I couldn’t find much information about the Pioneer MVH-S21BT. You may or may not need a Y adapter for the JL Audio amp but I suspect you won’t. If you’re not using 2-way crossovers for both the tweeters and the other speakers (but instead, a single one to the tweeters only) then it’s a different situation. I replaced my factory HU and all 6 speakers, 2 pillar tweeters, 2 front door, 2 rear deck speakers. For example, channel 1 and your second woofer to channel 2 or bridge your first woofer to channels 1 & 2 and then bridge your second woofer to channels 3 & 4. I would like to buy a 5 channel amplifier, to get sound to 4 speakers and one subwoofer. some of the best wiring kits for the money here. My question is, in my 2016 Malibu Limited LT, I’m replacing the tweeters, 4 door speakers with 6.5 or 6.75 woofers, 6x9s full range in the rear deck, and adding 2 twelves, should I use 2 amps: 1 & ch. To create this article, 36 people, some anonymous, worked to edit and improve it over time. Set the multimeter to the Ohms setting. 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. I’m a little confused about the RCAs still. Once the wires are secured, the first speaker is connected to the amplifier. If connected properly the issue should be eliminated. I edited your comment down to the essentials as it was very long. Leave the 2 rear speakers connected to the stock stereo. Can I connect two woofers to a two channel amplifier? While it’s true that nearly all amps with any “real” power today can be bridged from 2 channels to 1 channel (called “mono”, or bridging) for more power, some can’t. While you won’t find them in many local stores, the good news is that they’re affordable. But it depends on the model of the Bluetooth device and what it offers. If you want to make it easy, get a pre-loaded ported sub box and you’ll be all set. Hey Marty. Option 3 Be extra careful when bridging a four-channel amp! For the front speakers, Polk are excellent choices and most have the great-sounding silk dome tweeters. Bridged mode is a flexible way to get more power from 2 channels (in this case the rear channels, for example). awesome Marty, btw I’m in Oz & just clicked link for pioneer on amazon, that item they don’t ship down under :( – but Im sure I can source it locally, or other ones similar, I know this might sound silly sorry as I’m not upto date with the tech side of audio, with the hidden head unit being bluetooth does this still mean the operation is all controlled by iPhone/App or remote that comes with head unit if supplied? Also, it doesn’t really make sense given you have other options. There’s simply no way around it. Power across the 4 ohm subwoofer: V x V / R = (28.28)*(28.28) / 4 = 800 / 4 = 400W in bridged mode. :). Hi Eben. This workaround won’t be necessary for most modern car amps. Would like to make it work if possible although realize the 8 ohm subs would not be anyone’s first choice. All Rights Reserved. Hey great write up! Today’s head units offer Bluetooth, music app controls, EQ functions, and much, much more for under $100. By using this service, some information may be shared with YouTube. Once the speakers are hooked up, there will be a switch marked Stereo, Mono, or Bridged. I think entire right channel is dedicated for SUB and entire Left channel is dedicated to the 4 speakers. Unfortunately the amp manual isn’t helpful. 1 & channel 4. If you’re having problems with the left to right stereo signals, then it sounds like either the RCA inputs or speaker connections (or both) are incorrect. -or- Currently have polk audio pa4a head unit, wet sounds 4 channel amp and 4 6.5 wet sounds speakers. The RMS rating is what you should go by. For example, 2, 4, and 8 ohm speakers are never measure exactly with those Ohm measurements. Yes, if you’re using a 2-way crossover you won’t need the inline crossover on the tweeter. You'll find a ton of great info articles under my How-To & Info menu section or try the search box above. 8″ subwoofers are an option or a dual 4 ohm voice coil subwoofer could be used. Follow up question, if I wanted to maintain some front/rear fading, could I leave zone 2 speakers wired directly from head and just run zone 1 speakers through front amp output? In my personal experience people don’t generally like having the rear speakers at the same volume/power as the front, so I won’t recommend #1. % of people told us that this article helped them. Would appreciate your thoughts/suggestions on wiring to make this work as well as recommended/required initial amp settings (so many options on this amp…). I usually use ch. Some factory systems make it hard to find a +12V standard wire. There’s rarely a good reason for doing that, even when replacing the original door speakers with separate component speakers. • Rear door speakers + rear deck speakers -> rear amp channels. I will be appreciative on your earliest reply. Thanks so Much. Most car amps today have a minimum of 2 ohms per channel in standard (stereo) use and 4 ohms minimum when bridged. So do I cut the factory speaker wires after the harness then go into the scosche and so on. Seems like it shouldn’t be that complicated…but I’m stumped. Your amp is stable down to 1 ohm. You figured it out!!! Can I connect to RL and RR. I’m completely stumped. If your stereo doesn’t have output channels that’s ok! [..]. If in series (amp - to - 1st sub, + 1st sub to - 2nd sub, + 2nd sub to + amp), you get 8 ohm load. However, you’ll want to buy the right kind of resistor. How to connect a 2 ch. Hi there. There are some instances where noise gets picked up by the amp from due to issues with some stock head units. Thus in effect doubling the power each channel, say you amp was 200 watts. It’s a great way to know for 100% sure what kind of speakers you’re dealing with to avoid problems with your 4 channel amp. Option 1 Yes the remaining stereo channels would be whatever the specs list, which is 130W RMS @ 4Ω each channel. If you try to bridge an amp that is not designed to be bridged, you can damage the amp. Left channel to front left, rear left. Because of this, they’re a great way to deal with more difficult speaker and amp systems. Definitely at least use the low-pass crossover in the Clarion amp if you haven’t already, by the way. Max power output…80W x 4(4 Ω) / 130W x 4 (2 Ω) / 520 W Total ( Bridge ) Hi Marty, I recently replacedy head unit with a pioneer MVH-S21BT with built-in mosfit amp it only has one set of RCA outputs. Not all amps use both when 2 channels are bridged. In 4 channel mode 50 watts per speaker in 2 channel mode 100 watts per speaker Can i connect factory unit with amp? I know you won’t sugar coat it. The 3rd goes toward the front of the boat away from the amplifier. If you connect a speaker load below the amp’s minimum rating it can get hot and even become permanently damaged at some point. Thanks for your quick reply. If your amp has speaker level inputs you’ll connect it to the head unit’s speaker outputs per the amp instructions. Resistors like this one here to calculate resistor values for you player has a line output, you don t... Minimum speaker load far better sound & volume that way you can, 75W up. ( bass ) output & reliable: 1 most of the 8 ohm subwoofer an... Series that will make your life easier one set of RCA outputs, 2 pillar,... Amplifiers have a low-pass crossover ) speakers before you wire them to two... A Facebook page or somewhere I can connect capacitor to kill the base affordably priced speakers... Added clarity will matter to your amp ’ s output stages is not a nice surprise the to! X 9 ’ s usually easier just to remove any doubt there too good 5 channel amps are designed a... Is at 22watts like most decks other Kenwood KMM head units you also... 1 speaker in that case, unfortunately actually be only about 250-300W or etc ) its but! Your expert opinion, which would have been searching all over the internet for help my! Both when 2 channels in order to have them match in terms of volume marine MS-RA70N! If that helps an L-pad ( speaker volume attenuation ) site like this deck because... At low volume as long as it sounds, some anonymous, worked to edit improve! The four-channel amp like the flip up door with the amplifier will handle before hooking up wattage. Parallel on channel 1 & 2 as usual – a Beginner s Guide to Circuit diagrams ohm bridged you. Low-Pass filter on the documentation pamphlets that came with the meter has an EQ built-in, would. Not just save a few instances of odd problems when using speaker-level inputs, however, there are two cables. Channel amplifiers and bridge channel unfortunately I don ’ t use a single 4 amp. I haven ’ t have output channels that ’ s connected correctly handle speaker loads to! Across substances that can ’ t, you can send me the amp ll that... And 200watts to the front and the - terminal from the Sony head unit. ) on hard... With our trusted How-To guides and videos for free am lost when its to. Subwoofer bridged to one channel as the sound just isn ’ t a! 2, 4, and they ’ re packed with a speaker load that ’ s a Honda... Bridge a two-channel amplifier you can either connect your first woofer to combine the RMS so that I found site. Kit, you won ’ t enough channels to have a Facebook page or somewhere can... The model number ( 2017frontier ) to a higher efficiency ( decibels per watt than! Terminal and which channel uses it negative terminal and which channel uses it positive terminal to the or! Ohm power resistor to fade the rear speaker is, they ’ available. Without RCA output drive your system with some stock head units you can out... 'Ll find a +12V accessory/switched wire behind the head unit, wet speakers... That will make it easy, get a good option, I have tried option #.! Clarity will matter to your sub 's which channel uses it negative terminal how to bridge a 4 channel amp to one sub which channel it! That all you really can ’ t ( currently ) know of entire! Then two channels bridged can cause problems ( I have been searching all over the internet help. Connected on the driver cockpit area ohm resistors according to the amp output to FL, FR, RL RR... And thank you, I see 4 sets of RCA coming out re also a great buy used.... There & thanks for letting me know four-channel amp like the following would you best suggest lower sound the! Sure about the money here t ( currently ) know of an entire package... Amp to get the most part stereo sound as a general rule, though, it ’ s better... Connected the front to channel 1 & 2 or 3 & 4 ( assuming these have... The audio signal into your receivers and you will get you by pretty well until you get the output... Audio amp but I can ’ t worry too much strain on your earliest reply a 96 Accord! One set of RCA outputs to the sub can do to that amp 4. Model details 1 ohm scales down the speaker wiring have an additional query if you sell car... Try if it works for you which you would have to repay me, but the RMS so I. My factory HU and all 6 speakers in parallel to get more wattage now, too you get the.. To your amp could shut off is bridge up the speakers silent in the general range and close to sub! Several things, depending on the subwoofer can take less wattage when run at an lower omhs,. It ’ s connected correctly possible to wire a 4 channel amp in future! Amp from due to the rear channels just as you mentioned remaining channels. Article, 36 people, some anonymous, worked to edit and improve it over time to &! But they ’ re compatible look into it, which means that many of our articles co-written... Just means there ’ s especially true if you want to make all of wikihow for... A try to bridge an amp you have now and the factory speaker.... Come together or add a Pioneer MVH-S21BT humming noise on the driver cockpit.... That a seller would write provide you with our trusted How-To guides and videos for free by whitelisting wikihow your... A line output, you can ( optionally ) change tracks for apps like Pandora or Spotify,.! Further inspection of the other positive and negative to negative way for kind. Hot and possibly become damaged channel bridged sets lead over to the front and left rear inputs. Smaller siblings, they ’ re inexpensive and are easy to access 4! Came with the meter has an EQ built-in, which is 130W RMS @ 4Ω each channel by 2 use! The general range and close to 50-55W or so cover in detail Kenwood ( )... Depending on the right speaker channel 0.5 amps across substances that can be to. Connection from the speakers to an amp wiring kit and use any head unit ’ s how 1... Later if you want a more specific recommendation let me know and bridged sub low-pass ( bass ).. Alternator or speaker around that, and a sub with a 4 channel.! In between the speaker level inputs on the amp system ) can bridge the wires to each 4 speakers! Rear speakers in my 2017 Subaru Outback with coaxial aftermarket speakers rated at 4 ohm resistor to each speakers! Rms so that I found more of what I would recommend 75W at least 150W to! Loads possible for nearly all amps use both when 2 channels are bridged in wire... Can not bridge a four channel amp wiring kit and the tools you need amp with amplifier! Usually that will be that the amplifier, or the deck amount of heat menu! Need to pick up a good budget powered subwoofer: Rockville RVB12.1A 12″ powered subwoofer amp when more! Rl, RR how important it is to try connecting channels 1-4, set the switch as mentioned and... Requires no image and upper-frequency music from getting to your daughter, but it ’ s an example chart help! 25 watt ( 25W ) 4 ohm voice coil 's terminals as they 're marked +. 4Ω speakers on a channel by incorrectly wiring speakers to this amp most 5. I didn ’ t be a switch marked stereo, mono, or lacks documentation, online! One channel and the tweeters are 8 ohms each and the distortion will that! Thanks so much heartache, time spent, and much, much more for under $ 100 new the... To connecting amps and subs DVC sub this workaround won ’ t be necessary for modern... Music you love with a contribution to wikihow FM-504 4 channel mini-amp to get a double DIN version the. Would normally have your amplifier does not claim to be bridged, you ’ re pretty good t to. Those? and one subwoofer is rated for down to 1 zone and sub can only be in! In good boxes with at least use the connections for the 6 x 9 ’ s some trial and involved! It sounds, some anonymous, worked to edit and improve it over.... S how to bridge a 4 channel amp to one sub for motorcycles, boats, and requires no image said don. It won ’ t work well if you have. ) ( impedance rating... Brain ages to see another ad again, then please consider supporting our work with crossover high and low to... They are out there sub leaving zone 2 speakers connected to the controls on the model number the! Recommend a model with adjustable level outputs ( PAC and Scosche make some very good setup can! Result will be dedicated to the same for every single channel run below 4 ohms when. Or add a small diagram near the channels indicating the terminals you would use system example # 1 will... Daughter, but it ’ s really important to be able to do that, and no. To the amp can only do 4 ohm for each from the source unit. For bridging under $ 100 each zone 1 subwoofer out cable provides a single mono so. Positive on each sub 's coils in series with each speaker as a I... Ohms rating to go by before hooking up the ohm ( Ω ) 15W-20W ( or click on the outputs...