Thank you so much for ur guidance. I heard 1508 outputs only 50w rms per channel. Will it be sufficient. Also, is 1508 with pioneer andrew jones speakers a good option.
We have to refer to the wattage mentioned for
Power Output (8 ohm, 20 Hz - 20 kHz, 0.08% 2ch Drive).
This value is 50W for 1508, 1509, 1608, 1609. Which means the overall power capacity is same for all these models.
When we use 5 speakers or 7 speakers, this power is distributed across all speakers.
For watching movies at normal volumes in small room, this power capacity is sufficient.
But for watching at reference volumes in medium/large room higher capacity AVR or external power AMP is recommended.
I would suggest to buy 7 channel amp which will provide the scalability to add Surround Back, Atmos, Front Hight, Rear High, Front Wide or Zone 2
There are better speakers than Pioneer Andrew Jones speakers, if you can increase your budget for speakers.
You may consider building step by step.
With the 1 Lakh budget you have, I would suggest to buy 1609 with a pair of good bookshelf speakers like SVS Prime, KEF, Tannoy, Elac, Polk, Jamo. Select a pair of bookshelf which you liked while auditioning. But ensure that there are matching towers, centre channel etc in that speaker series, so that you can add towers and move bookshelf to surround, then add Center and then add subwoofer, then Atmos ceiling speakers.