TravisHardiman

Wow, ellipses and another reference to competition. Imagine that. You forgot the popcorn Randal. So far, I am surprised and not on the answers. Obviously goal dependent which you didn't define so that explains a few things. I'd encourage you to think about listening to something that will highlight the integration with the rest of your system as a test/setup CD. Goal: pleasure. Not sure if you took a look at the list of what I had so far or not, but I was just asking for suggestions of music (preferably that has been mastered well with a full spectrum) from any genre, that would take advantage of a subwoofer. Stuff I'd like to avoid is: bass cds, +0db sine waves, songs that have just been slowed down (or chopped & screwed, etc), and the Black Eyed Peas.

Well I've gotten some great suggestions the past couple days, so I've updated my original Google Spreadsheet: https://docs.google.com/spreadsheet/ccc?key=0Aryg9jg9bq0CdHoxanlwcE1pdmMyYTlMOHlfQ25Nemc&hl=en_US

I'm looking for some test tracks from all genres. I have plenty of hip hop, electronic, and a few metal tracks, but I'm open to all suggestions. Here's the list of what I'm planning so far and what has been suggested to me: https://docs.google.com/spreadsheet/ccc?key=0Aryg9jg9bq0CdHoxanlwcE1pdmMyYTlMOHlfQ25Nemc&hl=en_US

Well according to the Sundown site: I think I do get the gist of what you guys are saying though. Even though there might be a few notes that low, I don't want to focus a huge boost to those frequencies. I just want to hear (or feel) those frequencies rather than have them be overwhelming. I'm not really looking forward to the work required to hone the port down a frequency at a time to determine the correct one.... Thinking back to the last ported enclosure I made, it didn't really sound well with faster double kicks and faster electronic music. I forget what that's called, transient response, or something. To be fair, that was like 15 years ago, and I didn't put nearly as much effort into it. I'm still not that confident of my skills. Looking at how relatively easy a sealed box would be to build, I think I'll just go that route. Thanks for all your feedback guys!

Hmm, I can think of at least 3 songs in my current playlist with bass that low: Method Man: Biscuits LL Cool J: The Ripper Strikes Back Nas: If I Ruled the World Also, some of the electronic tracks I have definitely go down that low as well: Fatboy Slim: Acid 8000 Goldie: Inner City Life Ju-Jajuba (probably the entire album) And the FLACs I have of Metallica concerts and LPs do as well. Or do you mean that it's overkill SPL-wise?

The pinkish line is the 30Hz that they recommend, although that should've been for 1.75 cu ft. For the other one I just plugged the T/S params into the Butterworth D4 ported formula to get the bluish line. Here's the fixed version:

Right, that's why I'm asking here. :-) Unfortunately I have no idea what the transfer function would be, other than it would probably be similar to other smaller sized sedans. Are you saying that I should stick with a ported box and just tune it higher, or that I should go with a sealed box? The SA12's EBP is 55ish, so it could really go either way.

I'm not sure what you mean, are you talking about the car's cabin gain transfer function?

No I don't have it yet. I'll check those deals out, thanks. I'm trying to stay under $600 for sub & amp.

The amp I was looking at was the Alpine MRX-M50. As far as budget goes, I'd prefer to spend less than $300 or so on the sub (excluding box-building costs). Another constraint is that I'd really like to keep the box volume under 2 cu-ft so that I still have some usable trunk room.

I'm planning on adding an amp & sub to my 2012 Ford Focus and am probably over-thinking it. I'm primarily looking at a single SA-12 D4 but I'm open to suggestions. Yellow & white lines are sealed enclosures based on Sundown's specs and a 0.707 Qtc enclosure. Bluish & pinkish lines are based on my calculations and Sundown's specs for a ported enclosure. I was originally leaning towards a sealed box since I was pretty happy with my previous sealed Pioneer 10s at 1cu ft ea & ~250W rms total. Now that I plotted out some graphs, I'm leaning towards the 1.8 cu ft box since it seems to have the best low end response. FWIW, I plan on pushing it with ~500W rms and will set the subsonic filter to 15hz and the low-pass to 100Hz. I listen to a huge variety in music: electronic, rap, metal, classical. I'm not planning on entering any contests, I just want some better bass.

Thanks!

Hi, I'm new to SSA. I followed a trail of posts from Sundown Audio to here and it looks like people seem to know their stuff here. I'm planning on adding a sub and amp to my car, and thought this would be a good place to ask questions, get my knol on, etc.