djphilly

I GOT ANOTHER SORRY STORY. kinda rediculous One of my previous installs that me and a buddy did refered someone to us on how to wire a Memphis MOJO 15 quad coil. Says he went to a local shop(didn't say which one) and they did not even know how to wire the sub. they told him they couldn't do it because they didn't know how to do it right so to get the load down to one. This is sad. how is it that some shops with "professional" installers don't know how to wire subs correctly. WOW!!

Me and a buddy of mine did an install with one of the RXD2400 powering a solo X 12" rated at 2500watts rms all running off an optima in the front and a kinetik 2400 in the back. big 3 done in 1/0 and install done with 1/0 cable. clamped the amp and only got about 2000 watts out at 1ohm. the amp is rated at 2400 watts at 1ohm. I live in houston and planet audio is one of the lower end brands they sell in flea markets. In that price range i would go with a hifonics brutus BXI2006D. I have experience with the brutus line and they put out more than what they are rated at.

hilarious.... also nice car man. hope to see more pics soon.

very nice explinations

So for the poster on the other site with a Crower stage 3 wanting a little more out of his headunit you truly think this is the case? Let's look at this objectively. That car is going to have a noise floor in the 85dB range. In order to have ANY acoustic separation you need to be 10dB > than the background noise. This puts us at 95dB which will be a level that is not "more" per his request, but either way we'll use it. A normal set of speakers is around 88dB efficient. To reach 95dB we will need to be putting >4w to the speakers to get them there. So at this "low" volume you really think that a h/u will sound just like an amplifier? Obviously not. Go to Best Buy and listen to a $200 boombox at 4w and then listen to a $200 amp at 4w and tell me there is no difference. No where did I even come close to saying that there would be NO improvement with a different source, just that it fundamentally isn't the reason for sounding bad. The amplifiers in h/u's are a complete joke, and this isn't at all about output but about quality. Dynamic capability, headroom, components that don't color the sound, and a decent power supply are all required for "SQ" but with your experience this should really be obvious to you already...that is unless you've never done a comparison and are blindly recommending what you have and not what you have experienced. Eggy may not understand, but at least he is trying to by actually reading things from people that do. I can't say the same about you. I would like to know in what events did mrd act as a "judge"? hard to believe he was ever involved in anything SQ

I can't believe this MRD cat is still trying to prove his point when he has nobody supporting his case. I was waiting for ///M5 to comment on this and he couldn't be more right

some of the ones i would look into: Sundown saz-3500d. rockrord fosgate 2500bd(new model) soundstream xxx4000d

knu konceptz kolossus flex 1/0 cable is 5145 Tinned Strands of Pure Oxygen Free Copper. stinger 1/0 cable is 4284 Tinned strands of pure oxygen free copper I would want more cable for the money that i'm spending

a 3000 watt rms sub for $290. Doesnt sound like a good idea. I live in houston and lanzar is a flea market brand

That could be the result of a subwoofer in a ported enclosure unloading. But that's not "unloading". OP: You definition of "unloading" seems to be reasonably accurate. I probably wouldn't call it's movement below tuning "uncontrollable", as the driver is still "controlled" by the motor and it's own suspension (and input signal). It's mechanical power handling is reduced, which makes it easier to overdrive the speaker. You could run a driver well under the tuning of an enclosure without issue as long as you kept power levels to low enough levels not overexcurt the driver. Do you understand how a ported enclosure operates? yes i understand how ported boxes work, I also understand that keeping the power level low enough would not hurt the speaker while playing below tuning. the point i was making was doing that at higher levels. The rest of the post wasn't directed at you. Hence the reason it started with "OP:". It was directed towards the original poster. Ok, sorry, my bad. I guess i wasn't paying attention

Yea ebay was my best friend in high school but i want something with a warranty and with ours i can blow subs and just get them replaced, but i really wanna try some mach5s ixls I buy stuff online often and If you buy from established online companies then you will get a warranty with your buy. sonicelectronix.com, audiosavings.com, onlinecarstereo.com You are missing one. sorry denim, SSA Also

That could be the result of a subwoofer in a ported enclosure unloading. But that's not "unloading". OP: You definition of "unloading" seems to be reasonably accurate. I probably wouldn't call it's movement below tuning "uncontrollable", as the driver is still "controlled" by the motor and it's own suspension (and input signal). It's mechanical power handling is reduced, which makes it easier to overdrive the speaker. You could run a driver well under the tuning of an enclosure without issue as long as you kept power levels to low enough levels not overexcurt the driver. Do you understand how a ported enclosure operates? yes i understand how ported boxes work, I also understand that keeping the power level low enough would not hurt the speaker while playing below tuning. the point i was making was doing that at higher levels.

I took the liberty of highlighting what you posted just in case you forgot. the speaker and the power would make a whole world of difference in quality. headunits usually put out lets say 50watts max per channel(12-25watts rms estimating). now to a speaker that is rated at lets say 60 watts rms that HU is going to be clipping way before the speaker reaches rms power. hince the need for an AMP to supply the right amount of power to reach sufficent sound quality without DIRTY signal or power

Hello. Eggy started off by saying that you can't get good sound out of speakers without an amplifier. Myself and the other member were trying to say that you don't necessarily need an amp to get quality sound out of a pair of speakers. A given hu's onboard amp is sufficient (at lower volumes obviously) depending on the speakers in question. The member that originally posted the init question has sony xplode coax from walmart as well as a noname hu from the same place. If he replaces the hu with a better quality unit, he will obtain much better sound, rather than just amping the signal that is coming out of his current hu and feeding that into the speakers. yes a HU will have an effect on SQ. so will the speakers. i bet you if he used that same HU with some better quality speakers(infinity,focal,soundstream pro series) he would get better SQ just from the speakers alone. just answer the questions: sony explod or Focal. which one would you choose? I would argue that a better signal fed to the speakers makes more difference than the speakers themselves. It's like listening to a radio vs. a cd... I took the liberty of highlighting what you posted just in case you forgot. the speaker and the power would make a whole world of difference in quality. headunits usually put out lets say 50watts max per channel(12-25watts rms estimating). now to a speaker that is rated at lets say 60 watts rms that HU is going to be clipping way before the speaker reaches rms power. hince the need for an AMP to supply the right amount of power to reach sufficent sound quality with DIRTY signal or power

His original argument was that his setup will sound better if he just amps it. And we were both arguing (basically) that the op's money is better spent on a better hu, which would give him much greater sq than merely amping his speakers would alone. You don't necessarily NEED an amp for good sq (at lower volumes, depending on the speakers and source, not everyone needs their ears to bleed... ) eggy never said anything about using an a/b amp to power components, he initially stated that you just need an amp. That is what started the argument. FCM went on to say that a "high-power" hu and properly installed speakers will give you good sq, and this is when eggy said that you need an amp for good sq. What kind of amp did you think he was talking about when he said using an amp would be better? a CLASS D for coaxials! of course he was talking about A/B class

Hello. Eggy started off by saying that you can't get good sound out of speakers without an amplifier. Myself and the other member were trying to say that you don't necessarily need an amp to get quality sound out of a pair of speakers. A given hu's onboard amp is sufficient (at lower volumes obviously) depending on the speakers in question. The member that originally posted the init question has sony xplode coax from walmart as well as a noname hu from the same place. If he replaces the hu with a better quality unit, he will obtain much better sound, rather than just amping the signal that is coming out of his current hu and feeding that into the speakers. yes a HU will have an effect on SQ. so will the speakers. i bet you if he used that same HU with some better quality speakers(infinity,focal,soundstream pro series) he would get better SQ just from the speakers alone. just answer the questions: sony explod or Focal. which one would you choose? I would argue that a better signal fed to the speakers makes more difference than the speakers themselves. It's like listening to a radio vs. a cd... So what you are saying is that the speakers make no difference in SQ. so in the world of car audio, home audio, pro audio, and studio recording audio the speaker plays no part in sound quality. I SERIOUSLY DOUBT THAT!. if thats the case I wasted my money on My JBL PRO AUDIO DJ speakers and my CROWN AMPS and could have gone with some flea market brand speakers. there is a reason why companies make "ECONOMY" products and then they make the "HIGH END" products, because people spend there money wisely. I think Everyone on this forum would agree when I say that they would not trade in their SUNDOWN products for some PYLE PRO products for any reason at all.

Hello. Eggy started off by saying that you can't get good sound out of speakers without an amplifier. Myself and the other member were trying to say that you don't necessarily need an amp to get quality sound out of a pair of speakers. A given hu's onboard amp is sufficient (at lower volumes obviously) depending on the speakers in question. The member that originally posted the init question has sony xplode coax from walmart as well as a noname hu from the same place. If he replaces the hu with a better quality unit, he will obtain much better sound, rather than just amping the signal that is coming out of his current hu and feeding that into the speakers. yes a HU will have an effect on SQ. so will the speakers. i bet you if he used that same HU with some better quality speakers(infinity,focal,soundstream pro series) he would get better SQ just from the speakers alone. just answer the questions: sony explod or Focal. which one would you choose?

both are pretty good amps. i would say go with the SAZ-1500D. IMO better to have more power for some head room

Yea ebay was my best friend in high school but i want something with a warranty and with ours i can blow subs and just get them replaced, but i really wanna try some mach5s ixls I buy stuff online often and If you buy from established online companies then you will get a warranty with your buy. sonicelectronix.com, audiosavings.com, onlinecarstereo.com

his response was I dont know much about car audio but i do have a basic understanding of it.. thoughts? Can you get good sound quality from a coaxial yes. in my opinion, a system will always sound better with sepeate components. subs, mids, tweeters,etc. just because his frequency response on his coaxials is 60hz-25khz doesn't mean he getting every frequency played clearly. he has no control on what frequency the tweeter or the mid range of the coaxial on going to play at seperate. he relying on the crossover on the speaker to decifer that. and that whole thing about being a judge. ask him how many comps he has won since he's a judge. and yes it does matter what kind of speakers you use. would you go to walmart and get some sony explods if you had the money to spend on some focals? better quality speaker, better sound. if you ask a SQ competitor, most likely they are using an amp to power their system, components or not.

hahaha

You seem like a good person, who's in it for the love and not the money. Thank you sir. try to be honest when doing installs and selling people products

the same as bottoming out. reaching its Xmech

good one. How bout when you get rear ended and the first thing you check when you get out the vehicle is to see if you subs were damaged. Haha

This is my Theory of what happens. subs have a Fs which is the the free air resonant frequency of the speaker. if a sub has a Fs of 35 hz and you tune your box to 35 hz. the speaker will resonant at that frequency. tuning a box to far below that like 28hz, 25hz or something like that, I might not have the right kind of pressure to keep the speaker from hitting it's Xmech, which is the max mechanical excursion of the speaker. that's why you might hear stories of people say there 1500watt sub blew out on 900watts of power. because the speaker bottomed out and reach it's Xmech because of tuning below Fs.