QUOTE(C.T. Seong @ Feb 16 2011, 09:18 AM)
1. Make sure the Subwoofer cable connected to Subwoofer OUTPUT
2. Put all the speaker setting to SMALL
3. Subwoofer level put to 0 dB

Thanks for the help.I will try it after going back from work.Hope they will settle the problem before I arrived at my house.To much to study in the manual.

Added on February 16, 2011, 10:45 amQUOTE(gkl83 @ Feb 16 2011, 09:39 AM)
i think should be no some troublesome for you to carry your amp and woofer by your own vehicles to the shop for rectification... at least fasten the process and u can enjoy your AV asap...
unless u means ur woofer as heavy as 30kg+ or defected floor stand speaker then different story and have to use their van to carry lo...
anyway, RM2400 for infinity setup with 2 stands seem is a good deal... where u get it?

I bought it from my favorite shop at Kulim.Always give me best price.All my home appliances I bought from them.Last Saturday I bought Panasonic Plasma 3D together with this VSX-520.They can offer you lowest price if you manage to give the price from other store.The valid one.Not the invalid.
By the way.Thanks for the advice.the idea to bring the amp back to the shop not crossing in my mind until you state it here.TQ my friend.
This post has been edited by Dual_shock3: Feb 16 2011, 10:45 AM