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#16 | |||
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Last edited by mossman; 12-27-2016 at 02:43 PM. |
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#17 |
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...also wanted to mention that my IDQ8 blended better with my 6.5" components. So much so that it was difficult to perceive the transition. With the IDQ10, it's very noticeable.
And I'm assuming it is always better to modify the enclosure to get a flat response as opposed to using EQ? Last edited by mossman; 12-27-2016 at 03:01 PM. |
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#18 | ||
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With that said, the larger sub will be slightly louder per watt of input power and will play lower more effortlessly- a good thing- I would experiment like we discussed to adjust the response of the 10 before doing anything drastic, and then level match by turning down the gain so output of the woofer is better balanced with output of your mids. Making the enclosure smaller will also roll off some of those lower frequencies. As for blending, try reversing polarity of the woofer- this will often bring the bass more "up front" but keep in mind that in many recordings audio engineers don't pay the most attention to whether the lowest frequencies are "in phase" or not and you may have to toggle phase back and forth as phase varies from song to song...I could do that from my head unit with two clicks, so for you it may pay to set it for the majority of music you play rather than to tweak it so frequently. What I did with my compact enclosure was to add a few db's of parametric EQ to frequencies where the enclosure rolled off (40hz to 20hz) to normalize the response a bit while retaining the kick of the upper frequencies for a more consistent response curve rather than a peak up high. I measured with an RTA app and felt the experiment was a success in getting the best of both worlds with a good SQ 12" woofer (my Polk SR 124, which needed less help down low than my JL Audio 10W6v2). Quote:
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#19 | |||
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Last edited by mossman; 12-27-2016 at 03:34 PM. |
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#20 | |
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I should also mention that I lined the interior of the box with 1/2" thick polyfill batting. Could this be the reason for the increased bass 50Hz and below--since polyfill lowers Qtc? Last edited by mossman; 12-27-2016 at 06:36 PM. |
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#21 |
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I stuffed as many of my daughter's building blocks inside the enclosure and brought the volume down 0.28 cubic ft to a net of 0.82 cubic ft. It sounds much better now. The lows are no longer overwhelming and it is hitting the high notes like the IDQ8 did. Guess I'm building a smaller enclosure! First I'm going to enlarge the hole from the ported enclosure I built for the IDQ8, block off the port, and install the IDQ10 so I can see what it sounds like with a 0.6 cubic ft enclosure (minimum recommended by ID), then make a decision what volume to go with. I'll likely split the difference and go with 0.85 cubic ft.
Last edited by mossman; 12-28-2016 at 12:54 PM. |
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#22 |
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I put the 0.6 cubic ft test enclosure in today and it gave me more high end like I wanted but killed a lot of bottom end, as expected. So I think I'll go with a 0.8 cubic ft sealed enclosure as a happy medium, lined with polyfill batting. I guess I should throw some polyfill in the 0.6 box first to see what effect it has actually.
Last edited by mossman; 12-30-2016 at 09:12 PM. |
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#23 | |
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#24 | |
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http://www.roxul.com/products/reside...39;n'sound http://www.homedepot.com/b/Building-...P_PRC_MODE%7C0 http://www.soundproofcow.com/product...ng-insulation/ http://www.audimutesoundproofing.com/ |
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#25 | ||
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One works by damping the air inside the enclosure and tricking the woofer into "seeing" a larger air space than is actually there, while the other lowers the resonant frequency a panel vibrates at by adding mass...if the enclosure is made of MDF, it is acoustically inert and won't vibrate in an audible way with the frequencies produced by the subwoofer on/in the enclosure- it may help some with plastic enclosures (like some vehicle specific loaded boxes and OEM sub enclosures). |
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#26 |
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I'll add some polyfill tomorrow and drive around for a week to see if I like it or not. As of now, I don't really like the smaller enclosure, but that may be because the sub needs more power now that there is more spring pressure.
I hate to say it, but I think the 10 may be a little too much. It sounds good, but after a while it starts to tax the ears. I'm contemplating trying out two 8's. I still have the IDQ8 and a JL 8w3v3, so I'd just need to throw together an enclosure. Last edited by mossman; 12-31-2016 at 07:07 PM. |
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#27 | |
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If the 10 is too much, reduce gain to level match. |
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#28 | |
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I think it may just be a power and gain thing with the smaller box. I have to crank the bass knob up and increase the volume to give the sub enough presence, but then my highs are a little too loud. I can't really explain it. It's like the 10 is choking and wants a larger enclosure, but then it's too f'ing loud with the larger enclosure, but if I turn the gain down, it isn't loud enough in the right places. I may just need to accept that I'm not going to get the bass kick I want and focus more on a balanced system that sounds good. Basically what the 8" sub was giving me, only it wasn't quite enough, which is why I'm thinking two 8's may satisfy. Last edited by mossman; 12-31-2016 at 07:25 PM. |
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#29 | |
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#30 |
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Sometimes we have preconceptions of what is possible with a piece of equipment, but some experiments may change our minds (if we care to have that happen).
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