I'm answering based solely on the fact that I think you're fairly serious in asking and I don't think it would hurt to give a serious answer or two. Keep in mind that my answers are based solely on my limited experience and opinions so they may or may not amount to a hill of beans and may or may not conflict with fact or other member's personal views or preferences, and will not be anything but my most honest thoughts. Truconcept, on 20 Mar 2013 - 09:48, said:Hi guysThe last forum I was a member on misguided me terriblyPlease help me with some questions I have thanks! 1. can i use 2 ground wires for lower resistance?Sure, not sure why you think you need it.2. are 5/7 eq band head units pointless for a bass head since the eq shouldbe at 0 anyways?No. IDEALLY the EQ should be flat, but that would require a PERFECT speaker and installation which will NEVER happen, especially in car audio. An EQ can be adjusted up, but gains need to be readjusted when doing so and the proper way to adjust any EQ is to CUT or lower frequencies FIRST, then raise the ones that still need it (of which there will be few if any and almost no boost in most cases)3. why is a 4v headunit better than 2v?Technically, it's not. The only advantage a higher output voltage has over a lower one is the possibility of keeping induced and existing background noises at bay due to the level of the music signal being considerably higher than that of the noise signals, essentially like a higher SNR (signal to noise ratio). While that can be shown on an oscilloscope, it's audibility is pretty much a moot point with a quality installation and when quality equipment are in the signal chain.4. do you guys with multiple alternators have custom belts made?In the most extreme cases they might. Most auto parts stores carry an unreal variety in lengths. I find it hard to believe a "custom" made belt would really be any tougher than an off the shelf one.5. what specifically is in an expensive amp that a cheaper brand does nothave?Quality components, better board layout, better overall design. The quality of the capacitors, transistors, copper on the PCB, etc. all play a part in the total cost of a unit. Better R&D means more money spent to ensure a products quality and reliability. At least those used to be the main reasons for the difference, in today's market it's pretty much a wash. Another thing to remember is that it's not that the cheaper amps are horrible in the sense they are complete crap in the reliability realm, as most last as long as anything else when used properly. The biggest problem with them and the reason most people hate brands like PA, Boss, etc. is because they claim power ratings that the equipment couldn't output if they were hit by lightning.6. how can these guys patent a basket design? is it their reward forfinding the most effecient design first?While ANYTHING can technically be patented, when hours of hard work, design, etc. go into designing something AND it is truly unique then it can have it's own patent and IMHO the person/people who did all that hard work have every right to do so. It protects that hard work from being copied by others and profited from.7. why don't people use the 21" incriminator death penalty more oftenin builds?Space. A sub that big, the enclosure it requires, cost associated, etc. all play a part in it's usability. Not to mention that cones that large are subject to stress issues. While the enclosure size itself is about the same as alot of other popular 18" subs the real estate the sub takes up on the face can limit where and how it can be installed. It's typically much easier and more practical to use an 18".8. what is the difference between A class spl and C class spl?I can't offer a great deal of insight here without knowing the specific sanctioning body you're referring to. For that matter a little bit of reading on the information from that organization will likely answer your question. I think the difference is comparable to the different classes in AMA. 9. Car audio shows seem like a sausage fest, is there a lot of fighting anddrama?LOL From my limited experience attending shows, no. While it's no secret that the vast majority of car audio enthusiasts are indeed guys, there's plenty of girls to look at, lol. As far as the fighting and drama, people + alcohol = trouble. There are idiots at every gathering and while I'm sure it happens from time to time, of all the shows I've attended I've only seen one fight and it was because of an idiot grabbing another idiot's girl's ass. Subject for confrontation in most peoples opinions I think. 10. If I get metered and only score a 100, will some idiot be around 2 makefun of me?Probably. There are idiot's everywhere. You can in turn make fun of that idiot when he blows his shit up trying to beat your 100.11. Do a lot of cars get broken into at these events?In my experience, no. There's an awful lot of people around all the time at most events, I don't think it would be terribly easy to do. At the same time I'm sure it HAS happened before, I just wouldn't think it's a common occurrence.12. If I bring my girlfriend, do I have a better chance of guys giving me ademo?Yep, it's a requirement that showing tits is the only way to get a demo, LOL. Dude, the majority of people are there to show off their stuff. I can't imagine the chances change, much, with or without a girl by your side. Some people are strange tho and I can't speak for everyone.13. Are there any "unspoken" rules at a car audio show? (no touching, no pics without permission?)I think it's proper etiquette to ALWAYS ask before touching ANYTHING that belongs to someone else, it's just good manners. Pictures of the car itself probably aren't a problem, but I would ask permission before taking close pics of the equipment, install etc. just in case the owner is funny about it. 14. Do they sell beer at car audio shows?Depends on the venue I think.15. Do people often sell used amps/subs ect at these shows?Most of the time yes. What better place to sell something audio related than at a car audio show? I have been to a couple of shows that didn't allow that in the venue during the show, but those were a bit different.16. Is it ok to bring my innocent 11 year old cousin to a show or would iregret it?Almost all shows are definitely family oriented. There's always some girls walking around with some skimpy outfits on but I doubt anything he's not seen before and hopefully not anything he's not interested in seeing more of.17. what is the most popular subwoofer wire?Okay, this one doesn't make any sense. Speaker wire is speaker wire. 12AWG is sufficient and often overkill for pretty much every install and the vast majority of terminals can't fit anything larger than 8AWG.18. is loud bass on a boat something people do?I'm sure it's something that some people do, just like car audio, if one has an interest in it.