Definitely can't defeat the logitech Z906 if you compare C6XD there. Overall I'd think the top end is fine but the subwoofer is going to be missing out a lot.
But if you said analog connections are okay then the R501TIII or DA5100 will be a fair comparison to Z906. At least that has a more full overall sound.

Alternatively you can opt for a standalone av receiver to connect your existing pioneer setup. At least can make full use of your old speaker instead of buying more speakers if you still have em.
Denon AVR-X250BT would be around your RM1.2k budget with both analog and digital/HDMI connection for bypass.
Definitely not a space saver setup though 

The thing is pioneer htib speaker got 3 ohm impedance ig. Some more the sub is passive. I fear isn't compatible with denon or onkyo entry avr.

Right now im using 4ohms pioneer satellite with logitech x-540 sub/amp. Better than those logitech sat speaker. i plan to buy https://www.lazada.com.my/products/onkyo-ht...aNgREH&search=1. Any input?

Need recommendations for 2.1 speaker, use with pc for movie, music and gaming. Budget around 250-350

You can give Edifier XM6BT a try.

You can give Edifier XM6BT a try.

If compare with Logitech Z625, which one have better sound quality?

For Z625, you need to compare it with S350DB.

S350DB almost Rm1k, a bit too much already, hahaha. Do you think is worth it to topup 1xx to get Z625 instead of Xm6bt?

Z625 have better bass than XM6BT but XM6BT have better features than Z625.

Such as?? If like this, XM6BT sound like a good deal.

XM6Bt comes with wireless remote, support Bluetooth, USB and SD card playback.

OK. Thank you for the information.

Recommend 2.1 speakers, price at RM600-1000

Was looking at Harman/Kardon soundsticks cause they look good and sounds good.

But I ain’t pro at actually knowing if it is really that good compared to other products in the market.