Receiver mounts cleanly on support subs with special hangers
Allows you to place subwoofer where you want
Sender and receiver are factory paired
Proprietary connection for receiver unit limits use
RCA Cable on sender feels cheap and doesn’t hold well
When connected subwoofer emits random rumbling sounds
When connected subwoofer doesn’t seem to enter standby
Seems to reduce overall bass output
Although many people think you can place a subwoofer anywhere in room, audiophiles know better. Proper subwoofer placement, particularly for a single sub setup, is critical for maximizing the quality of sound emitted. When placed poorly you will have dead spots in the bass in the room and possibly even distortion. That is where the Klipsch WA-2 comes in.
The Klipsch WA-2 wireless subwoofer kit allows you to connect your supported Klipsch subwoofer to your receiver/amplifier wirelessly with little fuss while placing it exactly where you need. The concept sounds perfect, but unfortunately the execution leaves a little to be desired.
The kit is very easy to install. The receiver has one proprietary plug that connects to a support Klipsch subwoofer and the unit hands off two posts available on the back of the sub. The sender is more universal with a standard power adapter and L/R RCA cable. The sender and receiver come paired from the factory but also offer sync button as well as sync status light. The first bit of confusion is when connecting the sender to a receiver. The instructions say if you have receiver has an L/FE or single output then you connect that line with a single plug, on the supplied cable, to the L/FE plug on the receiver. The problem is the sender has no L/FE plug. It only has a left and right. The only way to determine the correct connection is to either guess or look carefully at where the diagram indicates you plug it in. Although not critical and relatively easy to figure out it is odd for Klipsch to make such an error.
What is more important is performance. To start, the included RCA cable is extremely cheap feeling. It holds onto the port with 4 very weak wings normally found on budget RCA cables. This causes the cable to never really have a firm connection introducing noise at random. If you connect it to the receiver and push the unit back into a cabinet, you can easily dislodge it just enough to introduce a low buzz. To make matters worse, something about the connection either in the wireless signal or the cheap cable causes the subwoofer to randomly thump and rumble randomly. The level is very low making you think it might be coming from outside or somewhere else. Upon closer inspection you will find it is in fact coming from the subwoofer. Using a good quality direct connection product produces no such thumps and rumbles. Another downside is it seems to reduce the overall bass of the subwoofer. With a hardwired setup connected to a Klipsch R-115S a setting of -6.5db is optimal and produces clean, noise free bass. With the WA-2 kit, the same subwoofer needs to be set to 0.0db an still seems to not have the same pressure in low frequency scenes.
While the idea of the WA-2 wireless subwoofer kit is a good one the implementation needs some refinement. For now, you are better of sticking with a hardwired setup or a different wireless kit. If you must use the WA-2, then at the very least a change of the RCA cable is recommended. Hopefully future generations of the product will fix the shortfalls as good wireless sub kits are hard to find.