Power & environment (India)

Yes to the first, and mostly no to the second, which is why prevention is the whole conversation.

Warm to the touch is normal. Too hot to rest your hand on the top grille, unexplained shutdowns, or a smell of hot dust is not, and Indian summers plus a closed TV-unit cabinet is exactly how receivers die young.

Mostly yes, with two qualifications: waveform and projectors. Modern electronics run fine on decent home inverters at normal listening levels, and plenty of our clients watch through cuts without noticing.

Humidity has two victims in an AV room, speaker drivers and projector optics, and prevention for both is cheap. The rule for anything unused is simple: power it on for an hour monthly through the wet season. Electronics prefer being used to being stored.

Stop and take this seriously. That tingle is leakage current reaching the chassis, and it means the protective earth that should be carrying it away is not doing its job. This is a safety issue first and an audio one a distant second.

Two different insurance policies for two different risks. Surge protection is for spikes; a stabilizer is for sustained voltage swings. Most Indian homes need the first, and only some need the second.