A:AnswerI have my rear speakers set at level 3 & volume is pretty loud, maybe you're hooking something up wrong, BTW I'm hooked up through HDMI not optical cable
A:AnswerVery easy to connect following the included instructions.
Go to http://www.samsung.com/us/televisions-home-theater/home-theater/sound-bars/wireless-rear-speaker-accessory-kit-swa-8000s-swa-8000s-za/
Click on Download User Manual
Look at the 2nd page for Compatible Models
Compatible Models
HW-K360 HW-K450 HW-K550 HW-J6000R
HW-K369 HW-K460 HW-K551 HW-J6001R
HW-K390 HW-K490 HW-K560 HW-J6010R
HW-KM36 HW-KM45 HW-K561 HW-J6011R
HW-KM36C HW-KM45C HW-K590 HW-J4000
HW-JM4000
HW-JM4000C
HW-J6090R
A:AnswerHi Renee, please review http://support-us.samsung.com/cyber/popup/iframe/pop_troubleshooting_fr.jsp?idx=652662&modelname=SWA-8000S&modelcode=SWA-8000S/ZA for setup to the soundbar. ^Rosi
A:AnswerI have a kw-450. I added the rear speakers to that sound bar. I believe these speakers work with all Samsung bars. Small speakers that connect wired to the receiver that then connects to the soundbar automatically from then on.