You don't have to use both channels (you probably don't have to bridge both either if you want to use the spare channel to amplify your two back speakers at 75 watts each) The DB1001s shall be on the front dash, the DB691s in the front doors and the DB651s in the rear doors. To top it off I sometimes us an aby switch to link the channels. Either case though, hopefully that'll get you in the right direction. Most 2 channel amps are only 4 ohm stable when bridged same for 4 channel amps as well. This is why some of the older amplifiers used a 'bridging module' (it inverted the signal going to one channel). A very first look at a circuit representation may be confusing, yet if you can read a subway map, you could review schematics. Feb 17, 2014 - Bridging a four-channel car audio amplifier will effectively double your amp's output (watts) so that you can drive more power to your speakers or subwoofers. The last option, and this one will depend entirely on the features provided on your stereo amp, is to bridge the two channels to a single mono channel. If you have a two-channel amplifier in your carâs system, you should be able to see 4 terminals; two positives and two negatives. How to Bridge a 2 Channel Amp. a 4 ohm sub is going to be 4 ohm, no matter what you do to the amp. In 4 channel mode 50 watts per speaker in 2 channel mode 100 watts per speaker I am planning on running only the front speakers without using rears. It's relatively easy to bridge a four-channel amp as long as you have a very basic knowledge of car audio wiring and how to connect an amp ⦠In fact, I would prefer that setup to a 2 amp setup. you not using channel 3 - 4 its now a 2 channel amp bridged, your only plugging the rca's into channel 1-2 there r no back speakers or channels 3-4 Create an account or login to comment You must be a member in order to leave a comment but when bridged gives out 100x2 rms at 4 ohms. If you bridge it you can run 2 speakers at ~ 100 each Your better off leaving it the way it is. Bridging a four channel amplifier is no different than bridging a two channel amp. This is mainly done for subwoofers, as it changes it from stereo to mono and doubles the power. As said, it's best to do some research - googling around for your specific amp, and see if the manufacturer specifies if and how to do it. How to Bridge your Amplifier. Power on the amp and stereo and play a track through the CD-player or head unit and have a listen to your new high-powered speaker setup. If you bridge an amp, you are using 2 channels to make 1. Thus in effect doubling the power each channel, say you amp was 200 watts. 6 speakers 4 channel amp wiring diagram â A Beginner s Guide to Circuit Diagrams. It goes like this: When you bridge the amp, each channel is "seeing" half the load presented to the amp. On your four-channel amp, you should see 8 terminals: channels 1 through 4 each have a positive (+) and negative (-) terminal. the amp is still seeing a 4 ohm subwoofer and is only going to provide 75W to the sub. Repeat the process to attach the left speaker wires to the left channel output connectors. So, if you bridge an amp to 4 ohms, each channel "sees" 2 ohms. theres nothing wrong with the amp that you allready have you just have to make sure its set up correctly you need to wire the amp so the front channels see a bridged 4 ohm load you need to wire the amp so the rear channels see a bridged 4 ohm load set the low pass filter to around 50-60hz and leave the bass bosst feature off completely Theoretically, the output should be 4 times the power of a single channel on the amp. A mono amp is better suited for using to power subs then a full range amplifier. This allows complete control of all four speakers, with fading capabilities. I was wondering if I could run just the tweeters using 2 channels, and the front woofers using the other channels. To produce maximum power into a single 4 ohm speaker (without increasing the rail voltage) you could simply invert the signal of one channel and bridge the speaker on the amplifier. Hi! It gives out 25x4 at 4 ohms. 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