Since the sub doesn't move as much as it needs to, it won't cool itself down. [This message was edited by dannymac26 on October 10, 2001 at 17:31.]. pickering_autoshop. It can also cause balance problems (you don't want too many speakers playing the same frequency range). ?Is it 400 W RMS or 200W RMS ? In most cases, a single power cable is the most elegant solution. 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. cross over your subwoofers. BUT realize that you can only do this if your sub is a 4ohm sub or a 2ohm Dual Voice Coil (which can be wired in series to 4ohm). Disclaimer on how to bridge an amplifier. Total Impedance = Sub Imp/# of Subs . why bridge anyway? For example, a 50 Watts X 2 amp bridged would act as a 200 Watts x 1 amp. From the speaker wires, connect the positive lead to terminal A and the negative speaker lead to terminal D. This probably won't damage the woofers, but it will waste power and reduce overall volume (since the amp will be amplifing sound that you don't want to hear). Since a sub can't physically move fast enough to deal with these upper-frequencies, you're gonna melt that sucker. It's important to keep in mind that when you bridge a two-channel amp, the speaker resistance---measured in ohms---is cut in half (i.e., 4 ohms would go down to 2 ohms). A JBL BP300.1 would probably do the trick (JBL apparently underrates their amps - it's rated 300x1 @ 2 ohm, but testing shows ~400w). Compare that to 200W if used in stereo, and you see where I'm coming from. If you wire 2 sub together in parallel (+ to + and - to -) then to your amp, you'll get a 2 ohm load. 1) Always, always, always, ALWAYS (Always?) Trump: AG Barr quitting and will leave before Christmas. In a bridged amps, what is actually its output impedence/resistance? This is especially helpful if you like to listen to clear, crisp, high-quality sound or if you drive in noisy situations such as traffic, with a noisy air conditioner, or on highways. Parallel it would be a 2 ohm load. Normally the cables are wired +1 and -1. How about if i get 100W x 4 channels @4 Ohms amps and bridge it into 200W x 2 channels @ ?? Bass also isn't nearly as sensitive to crossover quality as high frequencies. If it does it should be fine - you'd want a low pass crossover around 50-120hz (depending on how it sounds). Two SVC 2-ohm subs rated for 750 watts RMS each, 1500 together, will work great with an amp that can put out up to 1500 watts RMS at 1-ohm, like a Memphis PRXA1500.1. Next connect a separate cut of speaker … My amp is a mono block amp but has 2 positive and 2 negative terminals. How to bridge a 2Ch amp to two subs running at 2ohms? Can anyone point me to a particular webpage? ?I'm also wondering what will happen if higher frequency bass i.e>1 khz signal goes to the woofer and how will it sound like since it is rated for low frequency bass. Wire it with each sub on a seperate bridged channel and it would work perfectly (ie 4ohm woofer, amp sees 2ohms).Make sure the amp is built for bridging. All that energy that is received and not released is dissipated in the voice coil. If an amp doesn't have a rated power output at a certain impedance, it probably isn't stable at that level (ie will overheat/fry).Hooking a two 4 ohm drivers wired in parallel to a bridged amp will probably fry the amp. Ars may earn compensation on sales from links on this site. if you feed it higher frequencies itll sound like ass, as woofersare meant for lows not highs. i will have help and im not that stupid but i dont wanna buy an amp that will suck if i can bridge it In terms of amp wiring, that means getting your power straight from the battery. This matters because amps have to provide more current at lower loads (generally). as to how to get the correct size of woofer box. Il n'y a aucun danger pour l'ampli ni pour les enceintes. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Condé Nast. How loud is a 24,000 watt system with 3 18's? It gets kind of complicated, but usually higher dB rolloffs are better for subwoofers (ie 12dB vs. 18dB vs. 24dB). Regardless of where the amp is getting its’ remote turn-on voltage, this will allow you to turn the amp … With that in mind, you have the option to either run separate power cables for each amp, or a single cable that feeds all of them. Well i'm thinking of putting 2 woofers in my car. amp. To bridge your amplifier, locate the amp terminals. You could wire two SVC 2-ohm subs together to form a 1-ohm load powered by a sub amp like this. as already stated you need to provide more info about the subs and amp. It's a lot louder than a similarly configured stereo situation. So I need help with connecting my 2 subs a my amp. and the woofer i.e what max. Subs can and will die this way. To bridge, begin by connecting the amplifier to the speaker. The woofer datasheet does mentioned about box size in single woofer but i'm planning to combine 2 woofers in one box. 1 & ch. So if i connect two 200W RMS woofer in parallel, what is the amps output so that it can drive both amps. I guess most 2 & 4 channel amps cannot run a 2ohm load BRIDGED? If you amp is bridgeable you run + sub wire to ch 1 + then the -sub wire to the - of ch 2 of the amp. amps are pretty hardy equipment, especially if you can get one stable down to 1/2ohm or less. 1 decade ago. If you don't have an amp already, do yourself a favor and buy something that can run into low impedances. Sure, they're not as high tolerenced, as intricate, or as bizz-whang as outboards, but they do the same job. I have a 1200W Performance Teknique 2 Ch. I've never actually bench tested to see how much power it puts out, but not taking any kind of inefficiency into account, this 2x100 amp puts out 800W. Since you are not referencing the two seperate channels to ground, your output voltage swing is twice as large. Unless you're a serious audiophile or plan on competing, outboard crossovers are probably overkill. Username: Themax96se USA Post Number: 21 Registered: Jan-05: Posted on Saturday, January 08, 2005 - 11:52 GMT . You’ll have one going from the switch to the stereo and one from the amp to the stereo. Bridging any kind of amplifier may seem critical moreover tough but once you know the accurate process it won’t be tough any longer no matter how many channels it has. . An amp like you describe would be 100x4@4 ohms and 200x2@2 ohms. The same with the other sub + ch3 - ch4 that's how to bridge your amp. Ohms and connect each of the woofers to each of the 2 channels ? As long as you can wire the subs without going below 4 ohms you'll be ok. 0 0. justincresci. 2) Bridging an amp in no way fools it. First and Last terminal to bridge the sub ... http://www.diyaudioandvideo.com/FAQ/Wiring/. 2 Ohms each, at least thats what the box says. This is how you can bridge a 4 channel amp to 2 subs: Basically, the main process is the same for every single channel. Put the 30/50 hz filter switch to 50hz... most subs can't deliver a clean30hz signal. If i get an amplifier with 200W x 2 channels and bridge it into single mono output, what kind of arrangement for the 2 woofers that will be the best and does not fry the amps.? he was wondering if i could help him install the system, and he said that i would have 2 bridge the amp to install it. http://www.amazon.com/Lanzar-MXA282-4000-Watt-2-Ch... and i was wondering how to bridge it to give me maximum power. We just want thump. Trump is trying to get around Twitter's ban, Woman dubbed 'SoHo Karen' snaps at morning TV host, Official: Trump went 'ballistic' after being tossed off Twitter, NFL owner's odd declaration alters job openings rankings, 'Punky Brewster': New cast pic, Peacock premiere date, Clooney: Trump family belongs in 'dustpan of history', Student loan payments pause will continue: Biden official, GOP senator becomes public enemy No. Just to cite an example, I have two 4-ohm subs wired in parallel, which presents a 2-ohm load to my amp (HiFonics). are rated at 1 Ohm, 2 Ohms or 4 Ohms. Most amps would need to be connected to a signal for the rear channels also but since yours has a 2/4 ch. Some amps are not rated for going lower than 2 ohms, so keep that in mind when bridging an amp. LouieV. Before attempting to bridge an amplifier, there are a few things you need to keep in mind. The second and third apply when you want to connect two or more amplifiers to your system and use them at the same time, each amp powering a different set of speakers, with one of them usually used for a subwoofer. I have it bridged/mono, so the amp sees a 2-ohm mono load. Still have questions? the impedence the amplifier sees halfs when you bridge it. the ones within an amp are junk and don't do a very good job. connect the negative end of the first coil to the positive end of the second coil. Electoral College confirms Biden is next president The woofer frequency rated at 30hz - 800hz. So how can you bridge an amplifier? Let's find out. A couple of things:1) You can wire the subs three different ways: seperately (each on a seperate channel), together in parallel, or together in series. Finally connect the negative end of the second coil to the Best to bridge amplifers that are specifically designed for it. my amp is bridgeable too . Simple ...your amp will have speaker output terminal like +-+- that is 1234 ...now to bridge to get the max power u have to connect subs with 1 4 (not 1 2 or 3 4 ) i.e. Will it still be 4 Ohms or 2 Ohms?My understanding is the bridged amps output is still at 4 Ohms but is fooled to see a 4 Ohms load (eg.woofer) as 2 Ohms and thus generate more power in which then translate into a good thing View image: /infopop/emoticons/icon_smile.gif, My understanding is the bridged amps output is still at 4 Ohms but is fooled to see a 4 Ohms load (eg.woofer) as 2 Ohms and thus generate more power in which then translate into a good thing View image: /infopop/emoticons/icon_smile.gif. If its not designed for bridging, you can run into all kinds of problems. Your amp will see a 2 Ohm stereo load not because its being fooled into it, because it is a 2 Ohm load with that wiring config. Get your answers by asking now. Put them in mono. The amp should feel a 4 ohm load total and run just fine assuming you have all the DIP switches set correctly. Those speakon connectors have four pins (+1 -1 +2 -2). This should be indicated on the documentation pamphlets that came with the amplifier, or the amplifier itself. 2) If you bridge a stereo amplifier, it will see half the impedance presented by the drivers wired to it. Hooking two 4 ohm drivers in series to a bridged amp will not gain any power vs. running them off seperate channels. can anybody help me in doing … A positive and a negative terminal for channel one, and likewise for channel two. This is the same as driving a 1-ohm load with each channel. 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