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Everything posted by j-roadtatts
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resistance on power/ground
j-roadtatts replied to blakflash's topic in Amplifiers / Head Units / Processors / Electrical
If YOUR wire is the right Gauge and you don't have any ground whine coming from the signal then don't worry about it. If you have a poor ground you will know it. -
Some shots of the garden. The bell peppers are coming along nicely. I love tomatos SO I got like two WHOLE rows of different kinds.
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resistance on power/ground
j-roadtatts replied to blakflash's topic in Amplifiers / Head Units / Processors / Electrical
Why are you worried about the resistence of the power/ground wires? What you are showing is the resistence of the wire and battery. Anything that conducts electricity has a little resistence. -
Your machine break or what?
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The Amp rack looks good!
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My son loves them. He has all my old cds. I grew up listening to them. I had my room covered in Eddie posters. Although I will admit I haven't listen to them much since the 80's, For 31 bucks I figured I should hop on it. Plus its on a monday, Which is MY Friday Baby, Yea!!!
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SWEEET!!!!! I just bought my ticket for Iron Maiden in Denver on Monday!!!
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I always liked Christmas the best, until we started the haunt. Now we celebrate halloween for almost 2 months and open during big events in our town. This year we are doing a haunted mansion. Halloween is probably my favorite because I'm born 4 days before and usaully I end up celebrating on Halloween.
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Ya I noticed everything was dated for the 09' season. Halloween is definetly my favorite holiday!!
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Looks good so far! Keep the pictures comin'.
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Cool! would love to see them also! I checked out your web site too!
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Way to crack it out.
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Someday my Friend I will seek out some of you SQ Nutt's in my travels. I would LOVE to have someone that has a Tuned ear give me thier thoughts on how I did.
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Thats an AWESOME mask!!! LoOks goOd on ya'.
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Do active head units have subsonic filters?
j-roadtatts replied to jrod1050's topic in Amplifiers / Head Units / Processors / Electrical
You can look up the owners manual with google. -
He is just getting started as well. Exactly why I always tell people who are active hungry to expect their system to sound worse than a passive would for at least a few weeks. Obviously some people are quicker at learning how to listen than others, but it takes time. J-Road has done a hell of a job so far though and I know in the end this system will be more than sick. I want to give a BIG thanks to M5 (Sean) and Impious (Brad) for ALL the guidance. Without you two smart fellows I would have taken ALOT longer to learn what I was doing. You guys are WORLD CLASS!!!!! I want to ALSO thank EVERYONE else on SSA for their help and idea's, no matter how big or small.
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Thank you sir. That f-ing vinyl takes ALOT of patience.
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I know the thread ended up pretty long. I was ready to get em' in and guess I skipped a few details. I hot glued 3 blocks inside the pod, then used screws with fender washers on them to fasten from the back side of the door panel into the wood blocks. THEN I used 3- five inch long 1/4" bolts through the MDF ring ALL THE WAY through the metal of the door and used lock nuts inside the door. VERY SOLID.
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That's fantastic!! I wish I was close enough to hear it as well. Out of idle curiosity, what settings have you ended up with thus far? (crossover points, slopes, and phasing?) I think it's particularly good for those who may not fully understand what correct phasing and tuning can accomplish to hear it from someone who's recently spent some time working heavily on tuning. Any chance you could give some details some time on the testing and the differences you heard when things started to come together?? Of course results will vary for all, but you could give some good insight as to why it's worth the trouble, I think. When I first installed the raw drivers, I played with each set individually. I listened with them at full range got famillair with what they where capable of. Then I trimed the xover points to keep what I wanted as a rough setting. At first nothing sounded that good. I could hear some sounds so clear and other frequencys where non exsistent, The Comb Filtering effect. This is where phasing comes in, once I switched the drivers side full range out of phase almost all anomaly's disappeared!!!!! Next was the Aura midbasses, They too were barking at each other and having some cancellation. Not suprizing concidering they are air pistons and pointed directly at each other. I switched the drivers side midbass out of phase and BAM, I was getting assalted with the kick drum!!! Lastly the monster BTL sub in the trunk. At first the sub was barking from behind me, even crossed @50hz. I switched the phasing and OMG I can't believe this beast can blend. Sounds like its in my LAP!!!!! The tricky thing about blending a sub is that when they are out of phase, they sound louder SO MOST novice will think thats what sounds best BUT it will NEVER blend. My advice for testing phasing is listen for the driver you can pick out the easiest, the one that sounds out of place. Sometimes the out of phase driver will sound like its barking over everything else. The other thing to listen for is canallation, So if one driver seems like its not making any noise then you may be getting canallation. There is ALOT of different phase combos, but I don't think its necessary to run through them all, just change as needed. Back to the x-over points. Well at first I asked myself what I concidered sub bass and midbass. I concider sub bass as 50hz and down and mid bass as 50hz thru 400hz. So thats where I started. I then did sweeps of x-over points and slopes to see what occured. I tryed shallow slopes with a ton of underlap, I tryed steep slopes with overlap just to hear the different effects it had on the sound stage. After all that I ended up with: sub: ssf @30hz / LPF @50hz 12db slope Midbass: HPF @50hz 12db slope / LPF @400hz 12db slope Full rangers: HPF @500hz 12db slope I have no underlap @ the sub/mid point which really helps put the sub in my lap. I did a little underlap inbetween the mid and the full range, this keeps from having the same frequencys coming from seperate sources and confusing the sound stage. I can get the full rangers to play lower but then the mid bass gets anemic, And like wise I can get the mids to play higher but then it brings the sound stage down. Next the fun part, Gain matching. I had been listening up to this point with everything set low. Now that I had the signals trimmed up I cranked up the Fostexs and these beautys REALLY came to life!!!!! Then I cranked up the mids until they were over bearing and then backed them off a little until the just started to become an extension of the full rangers. I have sub level control on the HU so I have the sub gain pretty high and just add as needed with the HU. Some days I like to get assalted with Sub bass and other days I like it mellow. I will say that with the correct phasing on the sub and crossing @50 that no matter the level, The sub still blends and sounds AMAZING!!! Then I did some "time alignment" . the T/A is straight forward, measure lenghts, do a little math, set everything and then listen with my eyes closed as I sweep the setting back and forth alittle until satisfied. Lastly I tuned a little with the EQ. I abide by the rule of "if you want something to sound better, take away. If you want something to sound different then add". first I had to boost at 40hz cause my box is so pecky @32hz. Then I Took away a little at 6.3khz to get rid of some bite. Other than that everything is flat. I DO NOT have any "Media expanders" on except for the satillite radio, which needs it. Let me know if you Got any questions. I am not the greatest with words SO I may of left something out.
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Are you eyeballin' ME?
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I got kicked in the egg basket in a pit once by some dbag. It was intended too. He got the old double fist behind the shoulder blades later and landed knees first onto the cement. Most of the time in a pit I end up carry out all the wounded with some other big guy making sure girls and 130 pound dudes don't die. I'm about 50 lbs lighter than I was a few years ago SO I definetly wasn't as effective as I use to be. Once the concrete floor got wet shit got interesting......
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You will be good. I personally like to use a bolt through the trunk floor, with a lock nut on the underside of the car so the bolt don't come loose. Don't forget to make sure its bare metal.
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The meds can definetly say some funny things.