Myths or Reality.... - DIYMA Car Audio Forum

22 Hours Ago	? #1
? DIYMA freshman Join Date: Oct 2012 Location: Mid-Michigan Posts: 23 Thanks: 4 Thanked 0 Times in 0 Posts	Since I am pretty much a noob and have been doing a lot of research on here as well as other sites. I seem to come across anwers that seem to be conflicting to the same topic. Is the a definitve answer for any of these? And if some else has run across the same thing with other topics please feel free to add to the list. Thanks to all ahead of time for your input. 1. Speakers have a break-in period. 2. Your amp should provide twice the power than your speaker are rated to handle in order to best drive the speakers (provide overhead and prevent amp clipping). 3. Your speakers should be rated to handle significantly more power than your amp can provide in order to ensure the speaker does not create distortion. 4. A round speaker will provide better quality of sound versus an oval speaker (eg. 6.5 vs. a 6x9). 5. As you pay a higher price for your component sets or separates the sound quality will be infinitely greater as will the construction of the speaker (eg. $1,000+ >$600 > $300). 6. ???
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21 Hours Ago	? #2
? DSOTM Join Date: Jul 2008 Location: LFT Age: 39 Posts: 3,200 Thanks: 71 Thanked 78 Times in 69 Posts	Quote: Since I am pretty much a noob and have been doing a lot of research on here as well as other sites. I seem to come across anwers that seem to be conflicting to the same topic. Is the a definitve answer for any of these? And if some else has run across the same thing with other topics please feel free to add to the list. Thanks to all ahead of time for your input. You do realize the forum has a myth?s section, don?t you? Quote: 1. Speakers have a break-in period. The jury is out on this one. While I have measured T/S Parameter differences between an out of the box subwoofer and that same subwoofer played in free air for 8 hours straight at a particular test tone, I can?t say that the T/S Parameters changed enough to provide an audible difference. Actually, if you want to prevent amplifier clipping, you?d need a minimum of 10x the RMS power! Also, what about your head unit clipping at the outputs? Or your external processor? Or the pre-amp section of your amplifier? You need to look at the point where you are trying to prevent clipping. Now with that said, you can have all the power in the world, and you will still run into the negative aspects of power compression. Sadly, a moving driver has an inherent amount of distortion. That?s just the way the ball bounces. I now laugh at how I used to get hung up on the distortion figures of amplifiers being 1%, .1%, .01%, .05%, and so on? Why? Because on average, most speakers reproduce music with double digit distortion figures due to their mechanical nature of reproducing sound. 5% to 10% is not uncommon in the automotive environment. Some people even have their subs producing 20% to 30% distortion.A properly designed speaker in the proper environment should sound relatively the same, regardless of its shape. The brand escapes me right now, but I know for certain there is at least one audiophile grade, home audio speaker set that uses oval woofers.Once you get to a certain price point, you reach the law of diminishing returns. Basically, you can double the cost of a particular product, and may receive a marginal improvement in sound. I'm talking something low, like 5% better versus OMFG, am I ever blown away by the quality. Conversely, I?ve been known to spend double the money and end up less satisfied than I was before. Usually the more expensive speakers are made out of exotic materials that will contain: Kevlar, carbon fiber, some weird treated paper, an exotic basket material, rare earth magnets, etc. With that written, you also have some grossly overpriced component sets out there that are marked at nearly $1,000 a set and contain less than $200 of raw components. Is your mind blown yet? The audio plot thickens!
	Disclaimer: Posts made under the screen name ChrisB are for entertainment use only! Opinions, conclusions, and other information in these posts that do not relate to ChrisB, shall be understood as neither given nor endorsed by ChrisB.
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21 Hours Ago	? #3
? DIYMA freshman Join Date: Oct 2012 Location: Oklahoma Age: 41 Posts: 104 Thanks: 0 Thanked 2 Times in 2 Posts	Quote: Sadly, a moving driver has an inherent amount of distortion. That?s just the way the ball bounces. I now laugh at how I used to get hung up on the distortion figures of amplifiers being 1%, .1%, .01%, .05%, and so on? Why? Because on average, most speakers reproduce music with double digit distortion figures due to their mechanical nature of reproducing sound. 5% to 10% is not uncommon in the automotive environment. Some people even have their subs producing 20% to 30% distortion. Ever thought about an amplifier distortion in relation to a speakers distortion, as in synergistic effects or an amplifiers distortion exacerbating a speakers distortion?
	http://meniscusaudio.com/ System 1 of 3: Amptech Alt, Stealth reg, Alpine IVA-C800, DVA-5205, CHA-5604, MB-Quart Premium-316, Mcintosh MCC443m, MCC427, Audio Control DQXS, Epi, ESP-2, Kicker XPL 12's.
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20 Hours Ago	? #5
? DIYMA freshman Join Date: Oct 2012 Location: Mid-Michigan Posts: 23 Thanks: 4 Thanked 0 Times in 0 Posts	Quote: You do realize the forum has a myth?s section, don?t you? Found it right after I posted . Anyhow this could be moved there and I wouldn't mind. I thought it would be nice to have all the major issues that a newbie runs into definitevly answered. Like this one: Oval speakers will typically distort at higher power faster than the equivilent round version? So if my objective is to get clear sound at say 115dbs in my car for the rock music I listen to, which speaker design do I go with? Factory has 6.5's in the doors but can fit a 6x9....oh what to do? That never ending question on the quest for the unattainable match of concert level volumes of rock music in my car with the clarity of jazz music.
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19 Hours Ago	? #7
? DIYMA freshman Join Date: Oct 2009 Location: HOME Age: 46 Posts: 58 Thanks: 5 Thanked 2 Times in 2 Posts	1. Speakers have a break-in period. TRUE...Specifically Subs! 2. Your amp should provide twice the power than your speaker are rated to handle in order to best drive the speakers (provide overhead and prevent amp clipping). FALSE ... Amp design takes presidence. Too many amp manufacturers exaggerate their specs. 3. Your speakers should be rated to handle significantly more power than your amp can provide in order to ensure the speaker does not create distortion. FALSE/TRUE ... more of a crossover issue! Some speakers crave for more power than their stated max. Ex: I have 300 watts feeding my Rainbow Reference Mid-bass from my Audison Trenta. 4. A round speaker will provide better quality of sound versus an oval speaker (eg. 6.5 vs. a 6x9). Don't know...I never tried a 6x9...but I remember my brothers car about 30 years had a 6x9. 5. As you pay a higher price for your component sets or separates the sound quality will be infinitely greater as will the construction of the speaker (eg. $1,000+ >$600 > $300). FALSE ... Marketing is a glorified lies. 6. ??? No idea!
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19 Hours Ago	? #8
? DSOTM Join Date: Jul 2008 Location: LFT Age: 39 Posts: 3,200 Thanks: 71 Thanked 78 Times in 69 Posts	Quote: Found it right after I posted . Anyhow this could be moved there and I wouldn't mind. I thought it would be nice to have all the major issues that a newbie runs into definitevly answered. Like this one: Oval speakers will typically distort at higher power faster than the equivilent round version? So if my objective is to get clear sound at say 115dbs in my car for the rock music I listen to, which speaker design do I go with? Factory has 6.5's in the doors but can fit a 6x9....oh what to do? That never ending question on the quest for the unattainable match of concert level volumes of rock music in my car with the clarity of jazz music. If pristine sound is what you want in the vehicle, give up now while you have a chance. I spent the better part of two years trying to attain the best possible sound I could in the vehicle, only to realize that a properly set up home system will EASILY outperform the car system at the fraction of the cost. Let me tell you what I discovered... 1. The speakers in the vehicle are not placed in equidistant positions from the listener. This is much easier to achieve in the home, and while time alignment will partially get you there in the car, that time alignment in and of itself causes other issues. 2. The environment is mobile and subject to a multitude of problems from that alone. How are you going to deal with the reflections from the glass and the hard surfaces? What about extraneous variables such as other vehicles, tire noise, road noise, rain, wind, etc.? All of that will impact your pristine sound no matter how much time, money, and effort you put into reducing the extraneous noise variables. 3. The power source is 12 volts DC and your amplifier power is limited to what your battery can store and what your alternator can supply. In other words, lots of luck maintaining 115 decibels average (which is pretty loud) off a single battery and a factory alternator. The bottom line is that car audio is a compromise, and you have to decide what deficiencies you are willing to accept prior to delving into it. If you don't, you could end up spending lots of money and time swapping gear, only to find that it was all a waste to begin with. My last warning to you is to beware of the power of marketing! You'd be amazed at what you will hear based on what you believe from a preconceived notion.
	Disclaimer: Posts made under the screen name ChrisB are for entertainment use only! Opinions, conclusions, and other information in these posts that do not relate to ChrisB, shall be understood as neither given nor endorsed by ChrisB.
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19 Hours Ago	? #9
? DIYMA freshman Join Date: Oct 2012 Location: Oklahoma Age: 41 Posts: 104 Thanks: 0 Thanked 2 Times in 2 Posts	I think it's all in what we have become accustomed to whether it's more or less accurate reproduction. Kind of the reason Velodyne quit making their servo subs. Rep told me people didn't like them cause they were too accurate, didn't like the sound of an accurate sub as they were use to listening to distortion and became accustomed to it.. lol. So your statement makes perfect sense.
	http://meniscusaudio.com/ System 1 of 3: Amptech Alt, Stealth reg, Alpine IVA-C800, DVA-5205, CHA-5604, MB-Quart Premium-316, Mcintosh MCC443m, MCC427, Audio Control DQXS, Epi, ESP-2, Kicker XPL 12's.
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19 Hours Ago	? #11
? DIYMA freshman Join Date: Oct 2012 Location: Mid-Michigan Posts: 23 Thanks: 4 Thanked 0 Times in 0 Posts	Quote: If pristine sound is what you want in the vehicle, give up now while you have a chance.... If you don't, you could end up spending lots of money and time swapping gear, only to find that it was all a waste to begin with. Great advice as aside from becoming more knowledgable from this site I find I am wasting valuable time trying to attain the unattainable. SQ and Rock Music does not seem to go together. No one has the definitive answer but at least some definitive answers have been gathered in this post on a few issues I feel newbies like myself are encountering. Thanks to all for the posts and anything else that you feel needs to be added.
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15 Hours Ago	? #15
? DIYMA Regular Join Date: Jun 2009 Location: Arlington, TX Age: 27 Posts: 728 12V Company: Mobile Sound Systems Position: Sales Thanks: 17 Thanked 45 Times in 36 Posts	Quote: Great advice as aside from becoming more knowledgable from this site I find I am wasting valuable time trying to attain the unattainable. SQ and Rock Music does not seem to go together. No one has the definitive answer but at least some definitive answers have been gathered in this post on a few issues I feel newbies like myself are encountering. Thanks to all for the posts and anything else that you feel needs to be added. I think that if you can get away from this SQ obsession that people seem to have and concern yourself with what is fun to listen to with YOUR music, you'll be much happier. I don't care what Diana Krall sounds like on a system because I listen to Nile. I only care that Nile sounds the best it possibly can. Don't demo a system or judge your system with jazz if you don't listen to jazz. There's my advice.
	Mobile Sound Systems - DFW authorized source for Audison, Hertz, Morel, and Focal.
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14 Hours Ago	? #17
? DIYMA Regular Join Date: Jun 2009 Location: Arlington, TX Age: 27 Posts: 728 12V Company: Mobile Sound Systems Position: Sales Thanks: 17 Thanked 45 Times in 36 Posts
	Mobile Sound Systems - DFW authorized source for Audison, Hertz, Morel, and Focal.
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11 Hours Ago	? #19
? DIYMA freshman Join Date: Oct 2012 Location: Mid-Michigan Posts: 23 Thanks: 4 Thanked 0 Times in 0 Posts	Wow, what kind of setup do you have in the car that is able to keep that sounding good at high ear deafening volume levels? Cuz I know you are not just driving around listening to it at normal conversation levels or less. I have to imagine the CD sounds so much better than the YouTube clip (musically speaking). But yeah, that and Tool, and stuff like Black Label Society is what I want to be rockin'. When I listen to music like this I like to "feel" the music on me (kind of like being at the show) and not just the drums either.
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Source: http://www.diymobileaudio.com/forum/general-car-audio-discussion/139750-myths-reality.html

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