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lithium last won the day on April 22

lithium had the most liked content!

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About lithium

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    01 buick century

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  1. lithium

    Upgrading Current setup

    I think you should go out and measure that box. We would need overall dimensions of the box, wood thickness, and dimensions of the port. Pictures would also help. We could model your driver in that box to see if its performing anywhere close to what it should be. Most people new to audio don't realize how much the enclosure determines performance and I doubt that your current enclosure is in any way compatible to your subwoofer.
  2. lithium

    Upgrading Current setup

    What are the specs of the current enclosure? The enclosure contributes the most to the frequency response and performance of the subwoofer
  3. lithium

    have a ? about my install

    Also try box location and aiming in the trunk. I've had the best results with sub aimed rear and box moved a few inches from the trunk lid.
  4. Win isd is pretty simple program to learn. I would suggest you play around with it and see what the effect of box size and tuning is for yourself. Let us know if you need a link to a tutorial.
  5. Don't bother setting gain with a DMM. Typically this method is too conservative. Play music and turn the gain up till you hear distortion. Another idea to try, move the subwoofer around in the vehicle. I've notice significant differences in output at the driver position by moving the enclosure closer or further away from the trunk lid, aiming, etc.
  6. lithium

    Buick Century - active 3way + sub w/ nexus 7

    splitting the rca into 2 inputs increased the output quite a bit. Haven't pushed the sls 8s past xmax at >40hz before so that was cool. I'm absolutely doing door enclosures after these A pillar are finished. I need this midbass without door rattles.
  7. lithium

    Looking for new front stage drivers.

    doesn't seem as powerful as the dayton audio dsp which can also be programmed from a phone. I'd recommend buying the remote and bluetooth dongle so $200 all in. https://www.parts-express.com/dayton-audio-dsp-408-4x8-dsp-digital-signal-processor-for-home-and-car-audio--230-500
  8. lithium

    Buick Century - active 3way + sub w/ nexus 7

    The NVX 4 channel in my picture is probably the only 4 channel from that batch (PPI, polk, etc using same design) that you can still get for a decent price (under $200). I guess the PPI 600.2 sold out while these polk 2 channels are getting sold off at a great price. Ultimately, I hope to simplify my amp rack in my next car. So this will cut down on space requirements quite a bit. Very little seat time with the new amps but I haven't notice a huge difference between the two so far. I doubled power so the headroom should be nice given the giant EQ cuts I'm using to correct the cabin mode on the left driver. I got a sweet sunburn yesterday while swapping amps so I wont get to the A pillar pods till next weekend. I might just try a Y cable just to see what happens. Pretty sure it wont make a difference but I'd like to know.
  9. lithium

    Buick Century - active 3way + sub w/ nexus 7

    right, I'm just wondering how the summation occurs internal to the amplifier when you bridge the channels. 1 rca > Y adapter > 2 inputs on a bridged 2 channel amp > summed internally 1 rca > plugged into 1 of the inputs on the amp > summed internally does either case result in a different output from the amp?
  10. lithium

    2015 Hyundai Sonata Sport/Limited

    sweet build dude!
  11. lithium

    Buick Century - active 3way + sub w/ nexus 7

    anyone know if running 1 rca input to a bridged 2 channel amp causing issues? should I use a splitter for any reason?
  12. lithium

    Buick Century - active 3way + sub w/ nexus 7

    So the issue with the midbass is pretty much solved. see this thread: I'm planning to start the A pillar pods this weekend. But first I made a small upgrade to the amps. Polk must be clearing old stock because you can grab the PAD2000.2's for $50 each (these are the same as the PPI 600.2). Great $/watt. I'm running one to each midbass. These replaced some very old Kicker 250.2's I bought 10 years ago. I was planning to grab a second nvx 4 channel to clean up the install a bit but this was such a great deal. I considered grabbing another to replace the subwoofer amp. https://smile.amazon.com/gp/product/B07HNRLCXC/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 some before and after pics. apologize for the wiring disaster.
  13. lithium

    Where did my midbass go?

    I figured that at the frequencies I was concerned with it would be fine if I wasn't sitting in the driver seat. I know from work that head position can have a huge impact on operator measurements. We have a 6'4" coworker and any operator measurements we get with him are a dB or two louder overall compared to someone who's average height.
  14. lithium

    Where did my midbass go?

    Thanks for this. I was messing around with the tweeter and mid range xover point and started way to high initially. The mark audio drives are pretty decent up high but a tweeter can do a bit better it seems. I just roughed things in for now and will do a full tune after building the A pillar enclosures.