Does the SB595 need rear speakers for Atmos?

No. It creates height effects with up-firing drivers in the bar itself and has no rear surround speakers. The result is more front-stage immersion than a full surround system gives.

Can I connect a games console and a TV at the same time?

Yes. The bar has one HDMI input for a device and an HDMI eARC output to the TV, plus an optical input. You can switch between the console and the TV's own apps.

How does it compare with a 5.1.2 system?

It is simpler and wire-free apart from power, but it lacks rear channels. A 5.1.2 setup with rear speakers places sounds behind you; the SB595 keeps effects in front and above.

Does the subwoofer need a cable?

The subwoofer is wireless, so no audio cable runs to the bar, but it still needs a power outlet. Place it near the TV wall within range of the bar.

Can I play music from my phone?

Yes, over Bluetooth. There is no Wi-Fi streaming, so AirPlay and Chromecast are not available; you pair the phone directly.

Where should the bar sit for good height effects?

Put it on a stand or shelf at ear height with a clear path to a flat ceiling. Up-firing drivers work best with a flat, reflective ceiling and a low seating position.