Yamaha RX-A1040 with Monitor Audio Silver RX6 for L/R/C channels. Kimber Kable 4VS. No sub, rears or surround connected. - Feeds are from SkyHD / Apple TV4 - Amazon, Netflix, iPlayer. - Speakers are set as large and center channel has +5db. Distance is set around 2mtrs. - Normal listening volume ranges from -46db to -30db depending on source. Dialogue is rarely clear unless volume is increased, then the effects and music are too loud. Debating on adding pair of FX speakers and/or RSW12 sub. But this is going to be costly. Toying with ditching the center altogether and going with Yamaha YSP5600 soundbar or similar. Any advice appreciated.