I did a side by side with 3 configurations from the T773 - the cross set to 200hz, 80hz, and 40hz with the fronts and rears set to small in order to hear the bass channeling. The only real competition to the sub however is the fronts so those were the ones i really concentrated on.
I should also point out that the Rythmik Audio AS370 12dB/Octave Amplifier I purchased has customizable settings for a low pass filter and damping factor - VERY handy when fighting cone excursion and clipping. Through my tests i set my amplifier on the DS-15 to a 14hz low pass filter and a high damping factor. The low pass filter acts exactly how one would expect it to work and the damping factor steepens the curve of filtration on the low end. While I would normally want something less harsh, on a 15" bass driver you're going to lose quality quicker than on a 4" mid range.
200hz Cross - Stereo - Playing Massive Attack's Angel provides a good indication of the speakers power handling/filtering/as well as the CD players discrete processing (the track features simultaneous, sharp, tweeter and woofer signal), since none of that is on trial here however, i concentrated on the balance between the sub and full range fronts - I wanted to see how the woofer handled the low end next to the high and mid range that i'm so used to hearing on the Studio-100s.
Though i love my fronts i never realized they rolled off like that - haha. The DS-15 handled itself beautifully, no signs cone excursion. The driver appeared to be a little over driven on the part of the crossover freq, so i tuned it down.
80hz Cross - Stereo - My fronts tend to lose a lil' bit of their bite at freqs around 40hz. The 80hz mark saw everything i dreamed of in a sub - The bass was smooth and clean and after adjusting the phase on the amplifier one couldn't tell the low end on the fronts from the bass. The mid and high end popped over the sub and sounded excellent - complete coverage of the spectrum.
40hz Cross - Stereo - This is really where i want to keep the sub, using the fronts (while still set to 'small' on the T773) full range and keeping the sub for the freqs unheard on the fronts. Where as i expected separation issues and a distorted 40 - 200hz range with the cross tuned so low, i actually received a velvety smooth low end from music that i never knew had that kind of bass. The music sounded rounder, complete, and more dynamic - listening to the full range on the fronts still sounds GREAT but the 'real kick you in the stomach' bass from the DS-15 went perfectly with it. I gotta admit, I'm a puritan and want to stay off the sub for CD playback but I don't think I'm going to be able to...
Now getting down to what I'm sure everyone is wondering - the cost. Did my Rubik's cube project end up saving me money over buying a brand new similar sub? Why yes, yes it did if you read directly from the MSRP of such subwoofers. For the deal that I probably could've received, i really only saved a couple hundred dollars. Granted the bulk of the cost were tools and the way i rationalized it was the tools i purchased would have to be bought sooner or later. Taking that $428.98 cost off the table, the total i spent on materials/supplies was $284.74, not including the driver/amp at a cost of $578.55.
Making my combined total spent on the Rubik's Cube subwoofer: $1586.08
Compared to the MSRP of subs in it's category, all i can say is 'What a Deal!' Compared to what i probably could have purchased one for i did pretty well but of course i had the pleasure of customizing however i wanted. In Conclusion: the DS-15 comes highly recommended! For the money spent and the quality received, you'd be foolish not to investigate!
I'd like to thank Melissa Bazillion with helping to get this site launched and while you're here please give me a comment or send me an email with any questions....
Thanks for visiting!
Related Links - Please visit!
- Rythmik Audio Official Website
- Rythmik Audio Corp. has featured the Rubik's Cube Sub as their Primary Review!
- The DIY Subwoofer Page - The Rubik's Cube is on the Sealed System page!
- Parts Express
- DIGG: Thanks to DWolfe for Digging the Blog!
- DIGG: Thanks to GLA9301 for Digging the interview!
- I'm on Walyou - Thanks Eran!!
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- I'm on Hacked Gadgets - Thank's Alan and Reverend Jones!
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Posted by Zachary Paisley at 17:16