Hi Guys,
Just got my HU recently, a 9887, now planning on the next item, AMP!
So now, how much should I allocate for a decent 2 or 4 Channel Amp?
I do have a old 12" sub (BM Audio Labs) which is like more than 4 years old, from my old Saga.
Ya I know, to a lot of you guys, the Sub is a cap ayam sub...

But what to do... Last time know nuts about ICE... and now still... So pls bare with me...
Current Setup:
HU - 9887
Front - German Maestro Alpha 6.5" Component Set
Rear - Original Saga BLM Speakers
Item in hand:
12" Sub Woofer (No AMP to power it yet)
So now, my plan is to power up all the speakers with AMP(s)
And MAYBE I want to try to play Active Setup(Tweeter and front woofer separated channel? Please correct me if I'm wrong)
So what amp and what kind of budget should I start with?
2 X 2 channel, 4 channel or 6 channel?
I saw someone selling this amp online, STEG QM75.6MX for like 1K, but I'm not sure if it's OK or not.
Please shed some lights!

Thank you!