Hello,
I am not going to say I am an expert in any way. Some of this can get expensive because subwoofers are not cheap. I have found that trying to control sound at the lower levels can be the toughest thing to control. I have also found out over the years there are equipment audiophiles (likes to tinker with equipment to change the sound), music audiophiles (only wants to listen to good music), and a combo of both. I am both. Take on one sub at a time with the sub crawl. Best of all it’s free except for your time. Read up on the papers and forums to try their ideas. Again it should be free. Finally buy a Mini DSP or crossover to help you remove the humps or nodes. Just remember our biggest issue is the room. You might want to invest in some bass traps and / or diffusers. The node or hump you are talking about is not the frequency that bass traps fix. They are usually above that. I’m speaking in general. This can be frustrating especially if you are not an equipment audiophile. Finally you can hire a guy if you have the means. Usually it’s $100 per hour in the Chicagoland area. MC may not have patience but he did tell you what to do which you gave someone else credit for the DBA. Basically the more subs you have the less volume they play so those waves don’t have to travel as far which reduces humps and nodes. Try the first one next to you listening position pointing forward toward the front speakers. Then one in opposite corners of the room back to front. Think about it like dropping a stone in a pond at one end. The waves remain big and travel all the way across the pond and back again. Now two people drop stones at opposite ends. The waves get smaller when the meet. As you drop more stones the waves get smaller or canceled out. I hope this helped simplify the understanding of controlling bass.
I am not going to say I am an expert in any way. Some of this can get expensive because subwoofers are not cheap. I have found that trying to control sound at the lower levels can be the toughest thing to control. I have also found out over the years there are equipment audiophiles (likes to tinker with equipment to change the sound), music audiophiles (only wants to listen to good music), and a combo of both. I am both. Take on one sub at a time with the sub crawl. Best of all it’s free except for your time. Read up on the papers and forums to try their ideas. Again it should be free. Finally buy a Mini DSP or crossover to help you remove the humps or nodes. Just remember our biggest issue is the room. You might want to invest in some bass traps and / or diffusers. The node or hump you are talking about is not the frequency that bass traps fix. They are usually above that. I’m speaking in general. This can be frustrating especially if you are not an equipment audiophile. Finally you can hire a guy if you have the means. Usually it’s $100 per hour in the Chicagoland area. MC may not have patience but he did tell you what to do which you gave someone else credit for the DBA. Basically the more subs you have the less volume they play so those waves don’t have to travel as far which reduces humps and nodes. Try the first one next to you listening position pointing forward toward the front speakers. Then one in opposite corners of the room back to front. Think about it like dropping a stone in a pond at one end. The waves remain big and travel all the way across the pond and back again. Now two people drop stones at opposite ends. The waves get smaller when the meet. As you drop more stones the waves get smaller or canceled out. I hope this helped simplify the understanding of controlling bass.