This RCA Splitter Adapter and other similar products I have bought from Monorprice, are always of top quality, and at a very affordable price. I never have to think twiceabout quality/price before ordering anything. Moreover, at Monoprice, I find everything connected electronics/systems/computers, I can imagine.
These are inexpensive and do what they need to do without introducing any noise of hum in the signal I am sending to two sub-woofers. I am using these with the Monoprice high-quality RCA cables (15 foot and 35 foot lengths - PID numbers 6306 and 3976) and I have ZERO hum or noise in the subs. Others have reported low build quality on these splitters. I ordered several of them and they all work perfect.