Thank you. After adding the sub to the system I’m missing Left to left sound and Right to right sound effect. The fronts are about gone and the rears are starting to rattle. There’s just no way around it. Can I bridge amp mids and highs speakers? 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). Crossover frequencies, how crossovers work, and more. If your amplifier does not claim to be able to bridge. I would recommend a 5-channel amp with at least 50W RMS per channel for the main speakers and 250W+ for the subwoofer channel, and 2 ohm capable too. They’re available in 2 channel and 4 channel outputs. Hello, Marwin! If in series (amp - to - 1st sub, + 1st sub to - 2nd sub, + 2nd sub to + amp), you get 8 ohm load. Those may need a data line-to-remote wire adapter. So you’d go from the JVC to the amp’s RCA inputs (2/4 ch. GOSH!!!!!! You added a 4 ohm resistor to each 4 ohm speaker, then hooked them in parallel to get your 4 ohms. Be aware of the fact that if your amplifier is a stereo amplifier (amplifying both left and right), bridging it would cause it to become a mono amplifier (amplifying from one; either the left or right). Hi Stu. The sub is obvious enough. 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. I have a 2 channel head unit without rca output. If it doesn't then just hook each voice coil to a channel. 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. Remember: 4 ohm mono is equivalent to 2 Ohm stereo. Set this to Bridged. However, there are ways around that, and hopefully, your head unit has decent audio controls as that should help. Sub output on headunit goes to channel 3&4 on amp. Gift card? You can save money on the subwoofer and still have excellent bass, so have a look at the Skar or Rockville subwoofers. In 4 channel mode 50 watts per speaker in 2 channel mode 100 watts per speaker I really appreciate finding this information here. My best advice would be to forget about using the original radio for several reasons. I guess the amplifier does not work like a receiver, correct?….meaning that if the speaker wires for the sub are connected directly to the amplifier that is not always going to work??? Your amp is stable down to 1 ohm. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Can I combine two channel amplifiers and bridge them to combine the RMS so that I get more wattage? I think entire right channel is dedicated for SUB and entire Left channel is dedicated to the 4 speakers. In your expert opinion, which of the following would you best suggest? I’ve used them many times for speaker problem-solving. even if you bridge 2 channels (which provides 150W rms at 2 ohms!) The amp can only do 4 ohm bridged, and sub can only be wired for 2 ohm or 8 ohm. Then the output speaker wires from the pioneer goes back up to the other side of the cut speaker wires at harness to go to all front and rear speakers? Really the best thing to do would use a 4 channel amp and bridge the rear channels for the 12″ or add a second amp if you already have the monoblock amp. Hi Marty % of people told us that this article helped them. Hi Marcus. Assuming you do that, you might consider either replacing the Sony amp with a 4 channel class D as they have great power & sound in a compact size. That’s especially important because subwoofers are big, heavy speakers that need more power than small speakers to produce the bass sound you want. Sorry! It indicates the point at which you would normally have your amplifier for your main speakers start being full power. Assuming the sub has a 4 ohm voice coil...and only concentrating on 2 channels, you need to take the positive from one to the positive on the sub and the negative from the other to the negative on the sub. (You can also get a double DIN version of the kit and use ANY head unit.). Do I use B channel outputs, 2 channel bridged? And run a separate amp. 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. How can I repay you? Hi. Thank you, thank you, thank you. You might be able to keep the factory subwoofer but they never perform anywhere as well as an aftermarket one. Hi Rob and thanks for dropping by! That takes a huge resistor. The amp can run 2 channel either 4 or 2 ohms at 150W & 190W RMS per channel respectively. Hi Ryan. I have a powerbass 4 channel amp and i use it to on 4 speakers and a subwoofer left (front&rear) parallel in one channel same for right side.i bridged channel 3&4 for a subwoofer 8ohms.on the input i am using stereo from renault car radio spit into 4 by rca split my problem is if i put left&right into the sub channel my sub drops volume.i have to remove one rca cable in order for bass volume to be up.what am i doing wrong? Diagram – How to wire a 4 channel amp to 4 speakers and a sub, Click to download the printable speaker diagram, Using power resistors for harder installations (4 ohm min. • For option #2, unless the stock stereo’s front/rear fader is kept at the middle position (equal) you would use the front channels for both the front speaker signals and subwoofer signal to the amp. Actually I’ve tried connect it to the amp.And it work. It can be mounted underneath the dash at the front and held up in the rear with a bendable radio installation strap or other ways. You give all the right information for a product that the buyer should know. Never run an amplifier with a speaker load that’s lower than the rating! How To Wire A 4 Channel Amp To 4 Speakers And A Sub: A Detailed Guide With Diagrams. You'll find a ton of great info articles under my How-To & Info menu section or try the search box above. Repeat the process for the right woofer and the right channel of your amp, positive to positive and negative to negative. Ok, these may not be available where you are, but they’re good examples of what I’m referring to: For example, let’s say you have an amp with 500W output @ 4 ohms and you’ll use a 2 ohm resistor to bring a 2 ohm sub up to 4 ohms total. You don’t have to repay me, but I do appreciate that offer. If not, you’ll need to try connecting the other channels as I mentioned. • Not 2 but FOUR door speakers Worst case I would just run it at 2ohm until I get different gear. I want to bridge two channels to power my 600w rms sub. After playing, decided to go ahead and connect all 4 speakers to zone 1 leaving zone 2 available for either another amp or future move to a 5 channel amp. I’m now in market for a sub, maybe 2 sub’s but my question is would I be better off with a 5-channel amp? An amp doubles your wattage when u drop the omhs, but the subwoofer can take less wattage when run at an lower omhs. Connect a decent quality line level adapter to the head unit speaker outputs. Do I then just connect RCA for the front to channel 1&2? Furthermore, i haven’t Bought speakers for the front or rear yet. Hey Marty! If the amp really is bridgeable, you’ll need to check the manual to make sure you can use both RCA inputs in bridged mode. By adding inline resistors to the rear speakers you can drop their volume and it acts as a “fader” already. Hi Marty, this page is much more helpful than anything else I’ve found, but since I’m a nuts and bolts guy, sometimes electronics gives me blurred vision. SoundCertified.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. The GM-D8704 has speaker level inputs built in that will let you connect directly to the speaker level outputs of the Sony head unit. For the subs, you can use a 4 channel amp bridged to drive each one, but the amp should have decent power. Most of these have excellent features including a 13 band EQ, customizable color, Spotify/Pandora control, USB drive support, loudness, good Bluetooth connectivity & phone call quality, and so much more. Then the front outputs to 1 & 2 as usual. The Kenwood units offer a better EQ however. They’re not expensive if you shop around. and 6x9s and 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. However, it’s worth a try to see what you think & if it works for you! Burning out your amp’s output stages is not a nice surprise. (Focal(dot)com doesn’t have the manual now, if you need, please check from manualzz(dot)com – 4x90W RMS is the tagline) That’s because for blown speakers the voice coil no longer has a complete electrical path you can measure. It’s 4 channel with only speaker line out (no rca). Yes that’s right, or just use a wiring harness adapter so you don’t have to cut the factory wiring. Hi Marty, I know you won’t sugar coat it. And I’m feel so relief. Thank you sir. I think I understand the use of resistors, but wanted to double check before ordering. Hi Stephen. The wires coming from the speaker are going to be insulated with a plastic coating. I recommend about 60 Ohms as it will give a volume reduction of 24dB. Thanks. There’s simply no way around it. You don’t need a large wire as a remote signal uses less than 0.5 amps. How to connect a 2 ch. You’re welcome. Thanks for your reply. It’s always ideal to double-check. Likewise for the right channel speakers on ch. There are two RCA cables coming from the source radio unit (each with a red and white). When using only one amp, of course, you don’t have as much control over say the tweeter levels. However, neither of those options are the best. 1 output. However, I’ve come up with a sort of solution that helps a bit! It has always been confusing to me that there aren’t dedicated RCA inputs coming from the radio unit for the subwoofer, but because I’m a novice when it comes to audio, and because it’s always worked, I’ve just taken it for granted. Thanks to all authors for creating a page that has been read 907,689 times. At any rate, you normally want to set the crossover close to where the main speaker bass drops off, but a good rule of thumb is about 70-80Hz low pass. I’ve also got some great guides ready, too, if you’d like more ideas: Need advice on finding the right installation wiring? My amp is Magnat 560 4 channel. Your amp will run hot and possibly become damaged. How can I connect 2 woofers to a 4 channel amp? Hi Cody & I’m glad to hear that you found my info helpful as I really do work hard on my articles. I’m still using the factory head unit (Fujitsu Ten, no Harmon Kardon). – Infinity Components speakers (front) Your amplifier for your kind and quick reply more difficult speaker and 200watts to front... Ohm power resistor to each speaker as a general rule, though, the... Audio JD400/4 JL audio JD400/4 or in the owner ’ s worth a try to get. Consult an electronics or car audio store forming another channel, say you amp 200! It at 40 RMS per channel respectively or Spotify, etc people their. Channel amp t have as much control over say the tweeter can you that... Very high should help zone 1, but wanted to double check ordering... Other ) car amplifiers include very nice optional crossovers, for good sound has complete! 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