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About gstokes

  • Rank
  • Birthday 09/06/1959


  • About me
    Army Veteran and Dog Lover
  • Name
    George Stokes
  • Location
    Beaverton, Oregon
  • Occupation
  • Interests
    Enjoy Retirement
  • Audio System Setup
    3-way Active
  1. Most of y'all can go **** yourselves but I still love ya enough to share this with you. Just add microphones and stir, enjoy... Bose noise cancelling now available for cars without Bose stereos
  2. gstokes

    how to use amp fuses to tell actual output?

    Great info, thank-you very much ! I truly enjoy being educated by someone more knowledgeable
  3. gstokes

    how to use amp fuses to tell actual output?

    14 volts is a bit high, try using 13.8 and you end up with 1104 watts, now account for amplifier efficiency (class A, class B, etc.) and Voltage drop and you will have a more accurate representation of amplifier output.. It's not possible to make more than 1104 watts unless you increase source voltage or fuse rating, if the amplifier tried to make power then 1104 watts with a 13.8 volt source and 2 x 40 amp fuses what's going to happen, it'll blow the fuses because it can't draw more current than the fuses are rated for.. When calculating Power aka Wattage, Current and Voltage are inversely proportional, when voltage increases current decreases, when current increases voltage decreases.. Let's increase source voltage to 16 volts using the same 2 x 40 amp fuses, available wattage increased to 1204 watts.. Let's increase fuse rating to 2 x 50 amp fuses with the original 13.8 volt source, amplifier wattage increases to 1380.. Just remember to factor in amplifier class (efficiency rating) and voltage drop and you'll be fine.. Here is some good reading material> Voltage current resistance and electric power general basic electrical formulas mathematical calculations calculator formula for power calculating energy work equation power law watts understandimg general electrical pie chart electricity calculation Barry from Easy Way Electronics has more info > http://www.513electronics.com/how-to-size-your-audio-system-to-your-electrical-system/
  4. gstokes

    Channel Summing..

    too much controversy, look it up yourself...
  5. You just might need the LC6i, LC7i, etc.. It can't hurt anything.. I can't be sure without knowing frequency designation and channel layout so play it safe and use the LC6i or LC7i etc etc..
  6. No, the LC2i already has existing bass restoration circuitry, that cures the roll off.. If you had no Bass at all in the existing L/R channels then upgrade to LC6i, etc.. You have a full-range signal, it's just getting the bottom chopped off to keep sub-frequencies from damaging the speakers.. Let's say your head unit has 4 outputs, LF RF LR and RR, if the front channels only support 20Hz to 500Hz and the rear two channels support 500Hz to 20kHz then you have to sum the outputs to create full-range 20Hz to 20kHz signal for L/R channels.. Kapish ?
  7. If the head unit already supplies full-range left and right channels then YES, the LC2i is ideal. If the outputs from the head unit require summing to create a full-range signal then NO, the LC6i or LC7i is required. Full-range signal = 20 Hz- 20kHz
  8. gstokes


    aka Bass Blockers, here's a handy dandy calculator to assist you in selecting the proper cap/s.. http://www.the12volt.com/caraudio/crosscalc.asp#ccc
  9. gstokes


    The LC2i is ideal unless the outputs need summing, if the h/u already provides full-range left and right channels then there is no need for the LC6i or LC7i..
  10. gstokes

    Better Start Bat or Bat isolator

    hmm, you kind of answered your own question with the question.. If you're not willing and able to upgrade the alternator then you need to downgrade your system goals, with a 2000 watt amplifier it would be drawing 144 amps and that's just for your amplifier, add another 50 amps for your ignition, fuel injection, wipers, headlights, etc.. A 200 amp alternator would be the smallest you could use. Bump system power up to 3000 watts and now it's drawing 217 amps not including the ignition, fuel injection, etc etc.. It doesn't matter how big or how many batteries you have if the alternator can't supply the required current flow, with your stock 110 amp alternator your electrical system could hypothetically support a 900 - 1000 watt sound system, be realistic with your goals and design the system around the existing infrastructure.. Don't buy a 3000 watt amp then scratch your head and wonder why it's not making rated power with the 110 amp alternator.. Volts x Amps = Watts, Watts / Volts = required current, when the engine is running you have 13.8 Volts so do the math just keep in mind the alternator has to run much more than just the sound system..
  11. gstokes

    Wooden Alternator

    It's a little big to fit under the hood and you need to underdrive it about 100:1 just to spin it slow enough so it doesn't explode and send magnets flying in all directions, charging voltage is insufficient as well as charge current, 10 amps just isn't going to cut it
  12. gstokes

    Good SQ at a fair price??

    I may have this wrong but it appears that you will be using 2 tweeters per side and 2 - 6.5" speakers per side, you could eliminate the separate crossover and just use a 4 or 5 channel amplifier with built-in low pass/band pass/high pass active crossovers built-in then wire each pair of tweeters in parallel for a 2 ohm load and drive them with channels 1 and 2, then wire each pair of 6.5's in parallel for a 2 ohm load and drive them with channels 3 and 4, then you could wire a pair of 4 ohm subs in parallel creating a 2 ohm load for channel 5.. Choose an amplifier that delivers X amount of watts per channel at 2 ohms and run with it.. Even if you choose to use a 4 channel amplifier or 2 pairs of two-channel amplifiers for highs/mids then use a separate 1 or (2 channel bridged) amplifier for the lows you can still avoid using a separate crossover IF the amplifier has the desired active crossovers already built in. Use the KISS principle, Keep It Simple Stupid
  13. gstokes

    why mono?

    You can bridge channel 1 and 2 to power a component system in left door or kick panel, then bridge channel 3 and 4 to power component system on right side, my 5 channel amplifier outputs 75 watts per channel (1,2,3 and 4) at 4 ohm so there was no need to bridge any of the channels but if you have a low power 4 or 5 channel amplifier and want to drive a high power component set then bridging 1/2 & 3/4 is ideal.. To simplify things, you are combining 4 low power channels and creating 2 high power channels..
  14. You are correct, the distance from speaker to ear is more equal with tweeters in the kick panel but they are still aimed at the listener, it is matter of preference.. I don't mount speakers in the kick panel simply because they are more prone to suffer physical damage from spilled drinks and whatnot, at least in my van.. I believe cars are a more likely candidate for tweeters in the kick panel then a van or truck and that is the reason i put my tweeters on the dash in both corners. At the time it was ideal location for my tweeters but there is short distance from left tweeter to ear and great distance from right tweeter to ear but i am able to balance the sound however there is substantial off-axial response from right tweeter, like you i would prefer a more equalized location such as kick panels but it is what it is.. If it's any consolation the midbass are mounted in the doors and i am not happy with their location, perhaps they will find a new home in the kick panels one day.. We are in total agreement..
  15. For the most part components are always better but several manufacturers have found a way to make coaxials sound good. IMHO you want the tweeters in front of you and not beside you, the angle of dispersion is lowest with tweeters and they (could) suffer from off-axial frequency response, mostly depends on where they are in relation to where you are but generally speaking you want the tweeters pointed directly at your head, lower frequencies are not as critical as high frequencies but correct placement and aiming will still play a key role.