New Delhi, Jan. 22 -- Big sound upgrades rarely happen by accidental, they usually come when prices finally make sense. With the last day of the Amazon Great Republic Day Sale underway, this is one of those moments. Across soundbars, home theatres, Bluetooth speakers and party speakers, brands have quietly lined up serious value. Entry-level upgrades like the boAt Aavante Bar series or LG's compact 2.1 soundbars make a noticeable difference to everyday TV watching without demanding extra space. Step up further and systems like the Sony HT-S20R or JBL home theatre setups bring proper surround separation that feels cinematic rather than gimmicky. Even premium names such as Sonos and Philips are seeing rare price drops, making them less aspi...