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How many cu feet and what tuning point?
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<blockquote data-quote="Buck" data-source="post: 8757055" data-attributes="member: 591582"><p>I just like to say this as a point of reference:</p><p></p><p>2 DC M1 XL 18's @ 29 hz tuning ~12.3 in^2/cube of port area on 2400w rated RMS @ 12.6v (usually stayed in mid to high 13's at very full volume).</p><p>I did about 145 db @ 25-26 hz, 147 db @ 27-28-29, peaked 149.3 @ 35 hz, I could play up to about 65-70 hz at 147 db. Over 65-70, my box was a little too big, because it was originally for different subs, and I had a second resonance around 70 hz (35 x 2 is 70, octave). So if I didn't have a 12 db crossover at 63 hz, my subs would begin unloading and I'd drop into the 11's, even with only 2400w, a 300 amp alt @ 14.8-15v, a batcap 3000 and 3 100ah AGM's in the back, once I got past about 65 hz. It was VERY loud past 65 hz into the 70's and rolled off hard before the 80's. If it didn't unload, I could've played up to about 75-80 hz with that box, at maybe 145 db or so. It was just too brutal on my equipment, but that was fine. I had so much fun with that box.</p><p></p><p>I listen to a ton of dubstep, trap, edm, etc. Mostly the wub wubs in the tubs type music, and a lot of rap. So that's how I like my boxes for that kind of music. The hardest part of any system, for me, is getting the higher bass and midbass and mids to blend. Like when you get around 60-100 hz, or so, it's hard to get systems with very loud bass to blend with the midbass. So, having a lower tuning will provide a roll off that makes the top end not too intense, so it'll be more likely to blend (volume level wise) better with your system, since it's less likely to peak on a higher note. That's how I like my systems.</p><p></p><p>But you do you, have some fun testing it and figuring out what you like. Everybody has their own tastes.</p></blockquote><p></p>
[QUOTE="Buck, post: 8757055, member: 591582"] I just like to say this as a point of reference: 2 DC M1 XL 18's @ 29 hz tuning ~12.3 in^2/cube of port area on 2400w rated RMS @ 12.6v (usually stayed in mid to high 13's at very full volume). I did about 145 db @ 25-26 hz, 147 db @ 27-28-29, peaked 149.3 @ 35 hz, I could play up to about 65-70 hz at 147 db. Over 65-70, my box was a little too big, because it was originally for different subs, and I had a second resonance around 70 hz (35 x 2 is 70, octave). So if I didn't have a 12 db crossover at 63 hz, my subs would begin unloading and I'd drop into the 11's, even with only 2400w, a 300 amp alt @ 14.8-15v, a batcap 3000 and 3 100ah AGM's in the back, once I got past about 65 hz. It was VERY loud past 65 hz into the 70's and rolled off hard before the 80's. If it didn't unload, I could've played up to about 75-80 hz with that box, at maybe 145 db or so. It was just too brutal on my equipment, but that was fine. I had so much fun with that box. I listen to a ton of dubstep, trap, edm, etc. Mostly the wub wubs in the tubs type music, and a lot of rap. So that's how I like my boxes for that kind of music. The hardest part of any system, for me, is getting the higher bass and midbass and mids to blend. Like when you get around 60-100 hz, or so, it's hard to get systems with very loud bass to blend with the midbass. So, having a lower tuning will provide a roll off that makes the top end not too intense, so it'll be more likely to blend (volume level wise) better with your system, since it's less likely to peak on a higher note. That's how I like my systems. But you do you, have some fun testing it and figuring out what you like. Everybody has their own tastes. [/QUOTE]
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