Hi Folks,
I've been reading this forum avidly since the begining of this year. In building a new HT/Rec Room in our new home, I had the challenge of having to put all speakers in-wall. I have a 7.1 setup in a room that is approx 18'x25'. I have a 120" screen with a Pani projector. I went with Klipsch R-5800-W in wall's all around and for the price I paid for them, I am very happy with their performance.
The biggest challenge and the one which I started reading this forum for was the In-Wall subwoofer. Almost all "brand name" in wall sub systems were $1000+ and almost all of them had only a single 8" or 10" speaker. I have an interest/inclination in the electronics and speaker side and my brother is a master wood worker so together we set out to build a DIY in wall sub.
When all was said and done, we ended up with a 5.6 cuft sealed box built in-wall and fasted well so there would not be any vibrations. The box has 2 Shiva-X woofers and is powered by a EP2500.
My impressions over the last 2-3 months is that this setup get's LOUD. So loud at times that your insides start feeling funny. Reaching high SPL's is absolutely no problem for this setup especially with music. HT however was another matter. I have a little 10" Def Tech sub and I could tell by ear that this little guy was reaching lower than the in-walls. So back to the Shack I came to figure out what was going on. This is when I started reading about REW and it's magical ability to See what I was hearing.
Below are my REW graphs. I've done two measurements. One is the Dual Shiva's running and the other is with one of the Shiva's unplugged. (Simulate a passive radiator?) As you can see, my low end sucks. Any suggestions would be greatly appreciated.
Sound Card Calibration:
I should also note, since this unit is already in-wall, I cannot move it. I options to correct this room are:
1. Remove 1 Shiva and seal up the opening so the 5.6 cuft box has just one Shiva in it.
2. Add a passive Radiator
3. Try and EQ the dual setup
Also, I have just purchased a SMS-1 from these forums. I should be getting it in on Thr. This should help with the EQ.
I've been reading this forum avidly since the begining of this year. In building a new HT/Rec Room in our new home, I had the challenge of having to put all speakers in-wall. I have a 7.1 setup in a room that is approx 18'x25'. I have a 120" screen with a Pani projector. I went with Klipsch R-5800-W in wall's all around and for the price I paid for them, I am very happy with their performance.
The biggest challenge and the one which I started reading this forum for was the In-Wall subwoofer. Almost all "brand name" in wall sub systems were $1000+ and almost all of them had only a single 8" or 10" speaker. I have an interest/inclination in the electronics and speaker side and my brother is a master wood worker so together we set out to build a DIY in wall sub.
When all was said and done, we ended up with a 5.6 cuft sealed box built in-wall and fasted well so there would not be any vibrations. The box has 2 Shiva-X woofers and is powered by a EP2500.
My impressions over the last 2-3 months is that this setup get's LOUD. So loud at times that your insides start feeling funny. Reaching high SPL's is absolutely no problem for this setup especially with music. HT however was another matter. I have a little 10" Def Tech sub and I could tell by ear that this little guy was reaching lower than the in-walls. So back to the Shack I came to figure out what was going on. This is when I started reading about REW and it's magical ability to See what I was hearing.
Below are my REW graphs. I've done two measurements. One is the Dual Shiva's running and the other is with one of the Shiva's unplugged. (Simulate a passive radiator?) As you can see, my low end sucks. Any suggestions would be greatly appreciated.
Sound Card Calibration:

I should also note, since this unit is already in-wall, I cannot move it. I options to correct this room are:
1. Remove 1 Shiva and seal up the opening so the 5.6 cuft box has just one Shiva in it.
2. Add a passive Radiator
3. Try and EQ the dual setup
Also, I have just purchased a SMS-1 from these forums. I should be getting it in on Thr. This should help with the EQ.