Finally got the keys yesterday....and have a look inside the HT room, yeah, it's square but thankfully, the room had been treated by previous, lots of panels and diffuser in the room and I did not heard dull, echo or hollow sound when I talk in the room.

but, 1 light bulb blown when I turned the switch on, must have been not active for too long of time.

The storage room got lots of moles on the plywood, means the room moisture must be very high, how to reduce that?

A closer inspection of the speakers, it's Mordant-Short Aviano 900 series for the front and sub, Wharfedale surround speakers.

A Sharp 720p projector, Marantz SR7500 AVR, Marantz DVD/SACD player, Pioneer DVD player and a BMB karaoke system.