Q I’ve a Yamaha R-S202 stereo receiver and wish to join a Polk Audio PSW 10 lively sub to the “B” speaker jacks whereas nonetheless powering the present pair of Polk audio system from the “A” speaker jacks. Will this work, or should I as a substitute join the audio system to the road out on the sub? Which connection will give me the very best outcome with out inflicting harm or overload to the amp and can the sub’s quantity be managed from the amp’s quantity? — Alex Parkes, through e mail
A There are a few points with connecting the subwoofer in the way in which you instructed. First, you received’t have any sort of bass administration, so this can possible produce bass that’s boomy or bloated, particularly within the higher bass areas the place the audio system and subwoofer are enjoying the identical notes. Second, I checked the proprietor’s handbook of your Yamaha receiver, and it cautions that when connecting Audio system A and B collectively, you wish to use audio system with an impedance of 16 ohms or larger, or the unit might overheat. You didn’t point out your audio system, however they’re in all probability a extra typical 6-8 ohms.
Missing a subwoofer out connection in your receiver, the very best connection can be to make use of the A-speaker output from the receiver to the Speaker In terminals in your subwoofer. Then wire the subwoofer’s Speaker Out terminals to your audio system. It will permit the sub’s quantity to be managed from the receiver, however you’ll nonetheless have to set the subwoofer’s quantity initially, which might take a little bit of experimenting to seek out the correct degree. This connection technique may also allow you to use the low-pass filter on the subwoofer to seek out the very best mix together with your audio system, with a instructed place to begin of 80Hz, and received’t threat overheating.
Click on right here for extra knowledgeable recommendation on all issues audio and video.
