It looks like your pre-amp has two pre- outputs. Don’t choose an amplifier based on a power rating at an impedance your subwoofers cannot provide. Parallel: halves the impedance (ohms) of your speakers, but maintains volume levels. There are two ways to wire multiple speakers to the same channel. i got a 2x50 watt amplifier(4-8Ω). Check out the Tuning Videos after you have completed Connecting. You can connect the sub line-in to the second set. Once you hook up the sub, you will want to set the gain and … Enjoy the Music, REL p.s. As for the power output to your subs, that depends upon the ohm stability rating on the amp, the impedance of the subs and how you wire them. Take the positive leads from each sub and connect them to the positive speaker out on the amp. You probably have set 1 going to your power amp. Often times, using a single subwoofer for both systems is desired. 2. i gues its a noob question. Im kinda new to this. Just because your amplifier will do 1,000 watts RMS doesn’t mean it’s the right amp to power two subwoofers that have a power handling of 500 watts each. We’ve broken the How to Connect Series into Three groups Considerations Before Connecting, Connecting High Level to Various Type of Amps and with Stereo Pairs of RELs, and Connecting Low Level. From a single dedicated subwoofer out on the amp - one phono lead to the right channel in of the subwoofer 2. The managed bass subwoofer output from a home theater receiver or processor and the line outputs from a 2-channel preamplifier or integrated amplifier with line outputs can simultaneously be connected to one subwoofer. How to Connect Step 1. *WILL* damage the amp if the impedance is too low. If you are bridging this 2-channel amp to one subwoofer, you will connect one piece of speaker wire from the positive terminal of channel 1 to the speaker’s positive terminal. When you connect a subwoofer to a two-channel stereo, the AV receivers are in the duty of redirecting the bass of the sound and the low frequency sounds to the sub. Power across the 4 ohm subwoofer: V x V / R = (28.28)*(28.28) / 4 = 800 / 4 = 400W in bridged mode. watt wont bottlekneck or whatever? Two phono leads from a spare pair of line outs the the subwoofer L and R inputs 3. The voltage available across amp’s bridged channels working together in a push-pull fashion is: Total voltage: 2 x 14.14V = 28.28V. The volume control will control both sets. Series and Parallel. AV receivers feature bass management to direct the low bass … I want to connect 2 50w speakers (8Ω) to 1 channel. Subwoofer connection to a two-channel system differs from the methods used in home theaters. We connect the same 2 x 50 watts/channel amplifier in bridged mode across one 4 ohm subwoofer. A positive and a negative terminal for channel one, and likewise for channel two. 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