luckybeanbean 寫: finally have the time to look through the whole thread
looks like the DAAD works, and I am very suprise that it even works in subsonic region.
and by looking at the graph, looks like lexicon might be difficult to correct the subwoofer bass peaks. A BFD might be able to do a better job if you know how. I am very interested to see if SVS EQ works. Maybe I should borrow martin's XTZ software and mic to do a testing in my home.
I agree the Lexicon cannot able to correct the extreme peaks in my listening areas. However, some users find Lexicon is useful for them. I think the effectiveness of Lexicon EQ may depend on the particular audio frequencies problems within your own home. Hence, it is interested to use the software such as XTZ or REW to test and verify what EQ has been implemented by various AV Amp manufacturers.
As you may remember, I plan to get a BFD to tune the extremely low bass at 26Hz to make it lower.
However, from actual listening test with various movie, I do not find the 26Hz irritating. On the contrary, due to 26Hz is extremely low bass, I consider it is a good body message if this frequency do appear occasionally in the movie for a short time of a second.
Therefore, I do not want to go for EQ direction in the time being. Instead, I would go for room treatment with bass traps such as suitable RealTraps or bigger DAAD4 to see whether they can help.
I understand the most effective is to build a big massive bass trap. But due to the space within my home is limited, I cannot go for this direction.
I think you will find XTZ Room Analyzer is a good tool to work on and it is extremely easy to use. I strongly suggest you to borrow it from Martin or Eddie. If you have difficulty, I can surely happy to lend mine to your after my time consuming exercise on moving 3 or 4 subwoofers.
You will find it is more fun to understand and move around the heavy subwoofer to find the best locations and settings.
