As for a reasonable amp at RM1K to power your component, maybe a 2 channel amp will be good. I'd suggest you to check out Kenwood or even Sony amps. They're pretty powerful but if you wanna hear decent SQ's, maybe you can go for A/D/S or even Precision Power. But these 2 are 4 channel amps and are reputable SQ amps at good price. Maybe Alpine amps can be considered too but i'm not sure about their pricing. My suggestion is, do not rush into buying an amp just because you go into a shop and the boss blast his car ICE setup and it feels boomy and powerful and you think its a good amp.
I've been into few ICE shops and all they do is blast their subwoofer and you think its a good setup. Evaluate the amp specs and check with ICE sifu in forums and then decide whats good for you but ultimately, its your ears that listen, not mine or the boss thats trying to sell you his stuff.