Any time, a servo stabilizer does a great job in feeding constant 230V power supply to your AV equipment. I have been using 5kVA servo stabilizer at present, to power all my AV gears (TV, AVR, 2 power amplifiers, subwoofer, BD player, sound bar, sound bar subwoofer, STB & some LED lightings, together consumes roughly 3000W)
I was planning to go for Digi 200 from VGuard which gives ~1700W (1.7kVA). But such compact power sources are good to feed power for one AVR / BD player / 55" TV. Servo stabilizers would always make sure the output power ~230V is always fed from the varying input power supply 170V - 270V and supports as many devices as possible.
Size wise it would be compact for most users but is on the heavier side (25kg) due to their transformer sizes. Keep it at a safe place and you are all set. From my personal experience, I would strongly recommend go for it because you can be worry free and it will safe guard your AV equipment from surge and leaks. And from my experience I have not heard any noise while using the servo.
If space and size is not a constraint, servo stabilizers are better choice than usual small sized stabilizers.