Jump to content

Welcome to the SMD forum!


  • Content Count

  • Joined

  • Last visited

  • Days Won


snafu last won the day on March 22

snafu had the most liked content!

Community Reputation

1099 Excellent

About snafu

  • Rank
    SMD Sales & Marketing

Profile Information

  • Gender

Recent Profile Visitors

22506 profile views
  1. Still got it but it's likely going up for sale soon . . . Since the last post, I've put maybe 8k on the clock.
  2. And now . . . it's in full color! Check out this example I did for a positive battery cable assy for a builder that prefers to use all black cable. The red battery boot keeps things sane when it comes time to break out the booster cables. The smaller 8 AWG auxiliary cable goes to the under hood power center. https://ceautoelectricsupply.com/custom-cable-builder/ If you've not tried it by now, then check it out. Design a cable, take a screen shot of it, post it up here, and tell us what it's for. You can literally do this in minutes!
  3. Ready. Willing. Able. We build the very best cables in the industry, bar none. I'll stake my reputation on it.
  4. Check this out! Our CCB allows you to custom design cables to your exact specifications. AND, you can see the cable you've created before your very eyes as you're creating it! You simply have to try it - it's super simple on your PC or phone! https://ceautoelectricsupply.com/custom-cable-builder/ Try it out and let me know what you think!
  5. I like it. While SD's post is lengthy, it's also accurate. When it comes to charging system design, here are the factors you must consider: 1 - Intended use of the amplifiers - music / SPL / both 2 - Duty Cycle of the media (a function of #1) - heavily compressed pop music (or rap / bass discs) has a duty cycle of 50%, sine waves have a duty cycle of 100% 3 - Voltage available 4 - Current required 5 - Voltage Drop you're willing to live with (SD uses 5%, I tend to like 3%) 6 - Law of Diminishing Returns Once you have these answers, then it's a simple process of using Ohm's Law to arrive at the answer to a question like this. #6 is an ass kicker for sure. For example, you add three additional runs of cable and pick up .2dB on the meter. That's not insignificant if you compete - could make the difference between winning and losing - but the human ear can't detect the delta. Then, you add three more runs and pick up another .15dB on the meter. That's a total of 6 runs to pick up a third of a dB. Again, maybe that's what it takes to win. But, where do you stop? Personally, I don't think 90% of the members here at SMD are die-hard SPL competitors. Keep in mind when we're talking about thousands of Amperes of current and minimizing voltage drop, every single thing matters. Are you using the best materials available to you? Are your terminations done in such a way that voltage drop has been minimized. Etc. This process is referred to as minimizing your losses and it's what all of the world's best designers and engineers utilize. SD - well done. PM me your stuff so I can mail you the TORK2.
  6. Really, it's all about current over distance and how that affects voltage drop. Maybe I should build a calculator for such on our web site . . . hmmm . . .
  7. SD - I'd like this answer a LOT more if you edited it to incorporate the duty cycle of music. [Yes . . . I see what you did with the 15kw calculations - but let's get the enthusiast there more directly.] Let's all stay tuned and give SD the chance to edit accordingly.
  8. Lately, I've seen lots of video and photos of 10, 20, and 30,000 "watt" builds. While 30 runs of "oversized" 1/0 AWG power and ground cables may look the part, it's absolutely not necessary. First and foremost, the Laws of Physics are in fact Laws, not just really good ideas. They work in your favor as well as against it. Let's say that we design a system capable of 30,000 Watts RMS. As in - they system is cable of delivering 30kW of unclipped power to our speakers. The source of power is infinite (no matter how much juice we need, it can maintain 13.8 Volts - wouldn't that be nice?) Show me: 1 - the math on determining just how much current it would require to play music at 30kW 2 - the math to determine how many runs of 1/0 AWG copper cable it would require with the source of power located 15 foot away If you don't know how to answer, then your time will be far better served by learning how than comparing prices on cable for your next build. First person to get both right gets a FREE TORK-2 shipped to your front door (US only). This isn't designed to be a freebie. You'll have to earn it.
  • Create New...