Amp im interested in
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=65900
Printed Date: October 31, 2024 at 8:02 PM
Topic: Amp im interested in
Posted By: $toreycadillac
Subject: Amp im interested in
Date Posted: November 09, 2005 at 12:37 AM
Phoenix Gold Xenon X200.2 " Maximum Power Output From 1 - 4 Ohms Stereo or 2 - 8 Ohms Bridged" So if i wired the subs to get a 2 ohm load would that mean the rms per channel would be 400 instead of 200? RMS Power @ 4 Ohms: 200W x 2 @ 14.4V and im assuming all cars put out 12 volts so how would i get 14.4? is there a thing you can buy for that? -------------
Replies:
Posted By: jshhhs
Date Posted: November 09, 2005 at 12:45 AM
Forget about watts. Period. Think of watts as an advertisement. How efficient is the amp is the question. If the amp will run at 1 ohm then run at 1 ohm regardless of the watts it will hit way harder. 14.4 volts is the amount of juice your car gets when its running. The alternator puts about 14 volts out so it can charge the batt AND power the car electronics. Do NOT buy a capacitor-theyre crap. Get a battery in the trunk if you want to bump with the car off-any other power issue will be solved with a hi output alternator. In your case i wold just run at 10hm mono and get 4 gauge or better wiring. Oh yeah the deck is also important-how mnay volts are the preouts? ------------- What the feezy?
Posted By: dwarren
Date Posted: November 09, 2005 at 12:53 AM
jshhhs wrote:
Forget about watts. Period. Think of watts as an advertisement. How efficient is the amp is the question. If the amp will run at 1 ohm then run at 1 ohm regardless of the watts it will hit way harder.
Whoa! That is pretty off there. Ignoring MAX wattage is sensible, but RMS wattage is a legitimate number that needs to be followed. You have now suggested that one can purchase a 100 watt amp for a 1000 watt sub, I don't think that is going to work too well. The same goes for an amp that is too powerful for a speaker. There are thernal limitations on speakers. Efficiency is relative, but not really a controllable factor, some amps are simply better at this. Few amps are stable at one ohm. Running any amp at one regardless of the amp, will increase THD greatly and cause more heat throug the device, causing a shortened life. $tory, that amp will produce roughly 200 watts per speaker, which would be fine. When your car is on it will produce roughly 13-14 volts. -------------
Posted By: menace2sobriety
Date Posted: November 09, 2005 at 12:56 AM
in theory it will make 400 watts rms at two ohms stereo. as far as getting 14.4 volts i sell step- up transformers to acheive that at only $200 bucks a piece talk about a bargan!!!!! seriously when the engine is running your alternator will put out 14.4 volts so no extra stuff needed their. -------------
Posted By: hobobasher
Date Posted: November 09, 2005 at 11:21 PM
dude use a cap on the subs you could run another battery thats extreme tho use a cap your subs will hit harder the amp wont be starved of power thats why they also call it a "stiffing* cap it basicly stiffins the subs ask most everyone on this site and they will tell you caps are not junk and with that amp you wont need a second battery thats a waste of time and its rediculous you wont need a cap but its good to have to stiffin the subs basicly
Posted By: dwarren
Date Posted: November 09, 2005 at 11:27 PM
hobobasher wrote:
dude use a cap on the subs you could run another battery thats extreme tho use a cap your subs will hit harder the amp wont be starved of power thats why they also call it a "stiffing* cap it basicly stiffins the subs ask most everyone on this site and they will tell you caps are not junk and with that amp you wont need a second battery thats a waste of time and its rediculous you wont need a cap but its good to have to stiffin the subs basicly
What did you just type? Do you have any idea how this reads? PUNCTUATION and GRAMMAR are cool these days. And caps are realtively useless, as if this topic hasn't been beaten to death yet. Stiffening subs? I digress... -------------
Posted By: hobobasher
Date Posted: November 09, 2005 at 11:29 PM
you have your opinion i ahve mine i type how i feel which isnt relevant to the topic but whocares he wont need a cap at all the way i explained it was choppy but you probably got the idea and if not well i almost feel bad
Posted By: menace2sobriety
Date Posted: November 09, 2005 at 11:43 PM
stiffening caps are like diamond rings all they do is look good! and thats about it.
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Posted By: hobobasher
Date Posted: November 09, 2005 at 11:48 PM
lol no you misunderstood me in trying to explain what i meant i screwed up i didnt quite explain how i meant i know what you mean they only look good thats about it i know what you mean i was talking about like they do help my subs hit alot harder since i added one but it depends on your preference
p.s dwarren respect is cool these days too possibly the biggest thing you lack
Posted By: arrow12
Date Posted: November 10, 2005 at 1:09 PM
hobobasher... I am not saying this to make fun or start an type of drama, but it is really hard to understand your posts. Since you don't have punctuation the sentences run together and become really confusing to read. It might help more if you punctuated so people can better understand what you are saying.
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That's my opinion. Take it, leave it, or correct me.
Posted By: hobobasher
Date Posted: November 10, 2005 at 5:58 PM
no i understnad what you mean. atleast you didnt come off as rude towards me atleast you were polite about it. so i will respect your opinion and work on that. im not used to typing with puntuation and all that stuff so give me time ill work on it.
thank you
paul
Posted By: arrow12
Date Posted: November 10, 2005 at 8:21 PM
Well thanks for your cooperation. All us greatly appreciate it.
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That's my opinion. Take it, leave it, or correct me.
Posted By: hobobasher
Date Posted: November 10, 2005 at 10:06 PM
hey man not a problem. like i said ill work my best on it and i apreciate you being polite about it. one thing i cant stand is people being rude man do i hate that. but again thank you
Posted By: $toreycadillac
Date Posted: November 18, 2005 at 12:34 AM
Didnt know amps could be cause such an argument... Well now i kinda have an idea on what i would need to power my subs. Im starting to understand the whole ohms law thing. Im taking electronics class now so that should help. As far as capacitors go... Yes i will need one only if the headlights should dim or anything else be affected by the power drain of the subs and amplifier. A capacitors job basically is to store energy voltage or wattage i forgot but it stores energy and when the subs should hit hard pulling power from the amp the amp would pull that power from the capacitor. I dont know what 2 ohm stereo means because i can run the subs 2 ohms by wiring them parallel. Could i do that from a single channel amp? or would i need a 2 channel amp? -------------
Posted By: geepherder
Date Posted: November 18, 2005 at 10:26 AM
If your alternator is doing it's job properly, it won't allow enough of a voltage drop for any significant headlight dim. Stereo means there's two discrete channels- left and right. A single channel amp is also known as a mono amp. It basically combines the left and right inputs together to give you one channel. Most mono amps are 2 ohm stable.
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My ex once told me I have a perfect face for radio.
Posted By: godblessdremil
Date Posted: November 18, 2005 at 10:55 AM
I doubt he will need any upgrade in electrical system on his car. A Capacitor works when it is used properly to just give that little extra power when the base really starts to hit hard, not for when it dims all the time for that you need an new alternator and probally a new battery. Running at one ohm is usually not a good idea even on an 1 ohm stable amp. I only do it on JL's and Alphasonik's because there very efficent and hard to kill.
Posted By: hobobasher
Date Posted: November 18, 2005 at 2:24 PM
yeah I doubt he will need to upgrade the electrical system too. I think he will be fine. Sorry about the little disagreement but it wasnt my fault but I am still apologizing because I was involved in it.
Paul
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