Responding to an old thread, but I will be buying either the 90le745u or the 90le657u for my living room in the next 60-90 days. Seating is 16-17 feet from the screen so 4k really isn't important. I realize that the 745u is the older model, but does have the same built in audio as the 657u? I have read conflicting information on various sites that maybe the 657u doesn't have the same separate stereo speakers and built in sub that the 745u has. I will not be running separate audio with this unit and, all things being [almost] equal, I'd rather have the 745u if the built in audio is better. Yes, blasphemy, I know. Any clarity would be appreciated. Thanks
Last edited by Davecraze; 11-11-2015 at 07:13 PM.