Sony SONY-(GTK-XB72)BLACK

I purchased this to go alongside an older Sony unit, a GTK-XB5, to use the party chain function. This function allows you to string together units to amplify the total sound output. However for some reason, I could not adjust the audio on both speakers at the same time. I PC'd (party chained) them to each other, and as I adjusted the audio on my phone, only one of the units would change the volume. This is incredibly annoying, because turning the audio up or down manually on either of these units takes a while (or a million taps on the audio down or up button) because Sony didn't think to include a twisting dial instead of using buttons to adjust the volume. So think about it, you want to change the audio on your chained system? You have to physically get up and move to the slave PC'd units and manually adjust the volume. That's just dumb, it's impractical in all settings, and isn't streamlined at all. Also the sound is BALANCED. To you bassheads out there, look somewhere else. I turned the bass dial to max on this unit and it didn't make much of a different. The older outdated model, the GTK-XB5, hits harder in the bass department. If this isn't a concern to you then don't worry, the sound is balanced. However for anything that needs bass, it's lackluster and not worth the price whatsoever. I'm returning the unit because the party chain function is sadly misleading. I tried every cable combination in the back as well. Closing the "loop" or leaving the last slave open ended doesn't make a difference. If you're just purchasing a single unit, don't care to party chain, and don't need big bass, then the unit isn't bad. The sound is definitely balanced and does have many functions. For me personally though it's useless and misleading.