Some kits only include the decoder box (without speakers) for those upgrading existing passive speaker systems.

These are standalone "Audio Rush" boxes that convert Optical (SPDIF) or Coaxial digital signals into 5.1-channel analog RCA outputs. Popular Models: Geestar 5.1 Audio Rush (~₹1,452), RuhZa 5.1 Channel Decoder (~₹1,599). DIY Kits & Remote Modules (For Technicians) Price Range: ₹1,500 – ₹4,000

You can buy 5.1 DTS Dolby Digital decoder kits in India from various online marketplaces, electronics stores, and home theater specialists. Some popular options include: