Posts by manusha

Is there a standard way of interfacing with A/V devices so that the device can be controlled by sending commands through the interface? My Panasonic TV has a RS232 port which can be used to do this. I need to know if such ports are...

Hi all, I am an engineer in electronics/computer field and as a side business i would like to manufacture timber based sound diffusion products according to custom designs. I have access to high quality timber such as teak, jack,...

Hi experts, please help me chose a sub for my requirement described below: 1. budget - $600 without shipping and enclosure 2. Size requirements/limits - bigger the better 3. Room dimensions - 25 X 17 X 12 (feet) 4....

I was initially planning to isolate my home theater with a clay brick wall with an air gap of 6" between. Later realized that having a 6" space would not be practical as it will reduce the room space quite a lot. However i still need a...

Later realized that having a 6" space would not be practical as it will reduce the room space quite a lot. However i still need a pretty good isolation. My plan is to reduce the fap to 3" and put Roxul's Safe'n'Sound 2" between the walls...

Thanks for the reply Colm. Its Sri Lanka. I think the earthing system is TT. In Sri Lanka, plenty of deaths get reported each year due to lightning strikes that come though antenna wires. Although i did not mention in my first post,...

I like to know how reliable a whole house surge protector (lets say from a good brand) will be in protecting sensitive electronics from large surges? I live in a tropical country and lightning is frequent and large. I know this question...

Little bit of clarification.. This is what i understood from your post. The contribution from mass is a much bigger driver for resonance frequency. In that case, if i reduce the air gap to 2" and do not fill anything inside, the...

Is it possible to get similar insulation if i reduce the air gap to 2" and fill it with 2" 703?

What kind of sound attenuation improvement at low/mid/high frequency ranges can be expected when adding a 2"-3" thick absorber material such as owens 703 or roxul safe 'n' sound in between two 4" thick brick walls separated by a 6" air...