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Thread: Options for controling a subwoofer with a car pc.

  1. #1
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    Options for controling a subwoofer with a car pc.

    1) For those of you who have subs, how do you control them? All my prior systems had a SUB control on the headunit, where I could change level, and x-over frequency. I still want to be able to adjust the sub from the drivers seat, preferibly through software. I just ordered the audigy2 card...will this provide all the sub control via software?

    2) Also what about a software based EQ and DSP functions like time allignment? Audigy take care of this also?

    I was going to get the m-audio 2496 (I liked it because of the RCA out connectors), but it is only stereo, so it does not have a dedicated subwoofer output. In this cas, how would subs be controled?
    -AL
    * 2000 Ford Expedition
    * EPIA M10000/512 meg RAM, Win XP PRO, 90w OPUS, 80 gig HD
    * TM-710VGT LCD, Wireless mouse, keyboard
    * M-Audio Sound Card, 2 Alumapro 10" subs, 2 PPI Amps (1kW)

  2. #2
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    I am using a Clarion PEQ460 eq to control sub volume, x-over freq, fader, main volume and as an eq of course. I deemed it critical to have hardware control over the volume and fader. The only downside is that I need to use 3 amps.

    Let me know how the audigy card works.

  3. #3
    Newbie gangrew's Avatar
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    The M-Audio Revolution has software bass management and crossover built into the control panel of the driver. I use one in my home theater PC, and am building my in car PC around the same sound card.

  4. #4
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    The Audigy II will give you sound stage/speaker timing, crossover, bass, and subwoofer volume controls.

    But I did find the Audigy II sub out to be a little low in volume. It takes alot of gain and parametric eq settings to correct. You could also just connect the sub with a Y splitter into the front channel. The bass slider will now control the sub, but you will lose the crossover and subwoofer volume. This shouldn't be a big problem as your amp probably has a low pass crossover. I have yet to determine which way is better.

    I think I may pick up the M-Audio Revolution this weekend to see if it's any better.

  5. #5
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    gangrew - I was debating buying the revolution OR the audigy2... How do you like the performance and SW control of your revolution? The lack of RCA outputs on both kinda sucks, so you have to use adapters (1/8" to RCA) or custom mount RCA's on the card. I was worried the 1/8 plugs would wiggle while driving and/or eventually wear out and losen up. Maybe I am just being paranoid!
    -AL
    * 2000 Ford Expedition
    * EPIA M10000/512 meg RAM, Win XP PRO, 90w OPUS, 80 gig HD
    * TM-710VGT LCD, Wireless mouse, keyboard
    * M-Audio Sound Card, 2 Alumapro 10" subs, 2 PPI Amps (1kW)

  6. #6
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    is the M-Audio card good?
    Can you tell me its capabilities and how you have set it up??
    Of all the things I've ever lost my sanity was the hardest to deal with

  7. #7
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    1/8" jacks are fine. They won't wiggle loose. If you're truly paranoid, hot glue them in place.

    Difference between the 2 is negligible. Some find M-Audio to sound a little better, but Audigy II is proven better in gaming. Of course opinions on sq depend on the user. Compared to onboard audio or crappy sound card, it doesn't matter which you pick. But between the two, the M-Audio algorithms are better at sq.

    The Audigy II is 6.1 sound and comes with fireports and other internal connectors. The M-Audio is 7.1 without fireports. But because it doesn't have all the extra connectors, its smaller.

    The Audigy II does have speaker timing/sound stage settings, as well as some software dsp settings include reverb and parametric eq. I'm not sure if M-audio has either, as it was not mentioned in the reviews.

    Judging from the screen shots, the M-Audio control panel seems cleaner and more touch screen friendly. In the Audigy II, speaker settings, volume controls, dsp effects are located in different programs instead of tabbed as in the M-Audio. Although still fairly easy to operate w/ touch screen, the tabs would make things easier.

    For its smaller size, the M-Audio prob fits the car pc niche better. But they both seems to be great cards.

    Problems with both these cards:
    Too may connectors on the riser and very little space in between. Using one connector may block others. I found using extenders to help. The cards are taller than most pci cards, usually going slight passed the riser. Making a slim case / install is more difficult.

    Search google for reviews on M-Audio and Audigy II. You will find a few side-by-side comparisons.

    I currently use an Audigy II, but am still thinking about switching to M-Audio Revolution.

  8. #8
    Newbie gangrew's Avatar
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    I have been very happy with the M-Audio card. The control panel is easy to set up and quite adjustable. Volume can be adjusted for each speaker independently, while still having a master volume control. Timing and Crossover settings are adjusted using distance settings and is adjusted as to speaker type ( as in "Front Speakers" "Surround Speakers" "Subwoofer" etc.). As for subwoofer you can reverse phase polarity, send LFE to mains (with adjustable level), and there is a bass boost adjustment too. It all seems a bit of overkill for a car, but with my home stereo I use a simple 2.1 setup for music, and sound quality is excellent. This card also supports ASIO plug-in for winamp 2.XX (The Audigy may also do this I dont know). The M-Audio card is by no means perfect, but for anolog output its one of the best for its price range. For more info search the Home Theater Computer area of www.avsforum.com

    This is the first subject I have posted on here, but I want to say thanks to all the people using this forum. I have been lurking for a while and have learned alot about making a in car PC work. Without the information learned here I would be making many, many mistakes on this project.

  9. #9
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    [QUOTE=gangrew]Timing and Crossover settings are adjusted using distance settings and is adjusted as to speaker type ( as in "Front Speakers" "Surround Speakers" "Subwoofer" etc.). As for subwoofer you can reverse phase polarity, send LFE to mains (with adjustable level), and there is a bass boost adjustment too. It all seems a bit of overkill for a car, but with my home stereo I use a simple 2.1 setup for music, and sound quality is excellent. This card also supports ASIO plug-in for winamp 2.XX (The Audigy may also do this I dont know). The M-Audio card is by no means perfect, but for anolog output its one of the best for its price range. For more info search the Home Theater Computer area of www.avsforum.com

    WTF??? Im sorry im a dumbass - can sum1 explain this to me in little words please?
    Of all the things I've ever lost my sanity was the hardest to deal with

  10. #10
    Newbie gangrew's Avatar
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    Here is a very good article on this card.
    http://www.xbitlabs.com/articles/mul...olution71.html

    The software review begins on the forth page.

    I just want to say that I have no problem with Creative cards. I own 3 of them. But in my opinion music sounds better with the M-Audio card.

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