Question:
whats the best choice to get alot of bass out of a car audio system, 4 12 inch subwoofers 2 12 inch subwoofers 2 15 inch subwoofers 2 12inch / 1 15 inch subwoofer ? on what amp
Answers:
Look for this when buying an amp... http://www.crutchfield.com/S-OSAZiuYKz12/popups/cacomp.html
CEA-2006 Compliant
On May 28, 2003, the Consumer Electronics Association published standard CEA-2006, "Testing & Measurement Methods for Mobile Audio Amplifiers." This "voluntary" standard advocates a uniform method for determining an amplifier's RMS power and signal-to-noise ratio. Using 14.4 volts, RMS watts are measured into a 4-ohm impedance load at 1 percent Total Harmonic Distortion (THD) plus noise, at a frequency range (for general purpose amplifiers) of 20 Hz to 20,000 Hz. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. This applies to both external amplifiers and the amplifiers within in-dash receivers
If an amp doesn't have this rating, it's doesn't produce the watts it says it does.
http://spkrbox1.spaces.msn.com/ for real "sound" advice.
Your system won't mean squat without a well designed box to put your subs in. Some manufacturers have recommendations as to dimensions of various types of boxes. It is best to find someone who builds boxes if you go with something other than a sealed box.
You should always match up RMS (Root Mean Square) watts of Subs and amp per channel as well as impedance's(resistances). When a sub has rating of 600 Watts MAX it really has an RMS rating of about 200 Watts RMS. RMS is the nominal wattage your most likely going to get out of it. Remember, a 200 Watts RMS amplifier has more power output than a 200 Watt MAX.
If your amp is rated at 4Ω don't subject it to 2Ω, it will fry.
Here is the formula for subs in parallel:
Z = 1 / (1/sub1 + 1/sub2 + 1/sub3 + ....)
For series, just add them up (sub1 + sub2 + ...).
You can mix and match these equations to get the right impedance required by your amp.
Example 1: Amp is 2 channel and rated at 4Ω, 4 subs @ 4Ω each. If I connect two in parallel and the other two in parallel and connect the two pairs in series, I would have a total impedance(resistance) of 4Ω. So to the amp, it's just one sub.
Example 2: Amp is rated 1Ω mono, 2 subs @ 4Ω each dual voice coil. If I connect two voice coils in parallel and the other two voice coils in series and connect the two subs in parallel, I would have a total impedance of 1.6Ω. Which would be perfect for a 1Ω stable mono amp.
You should use a capacitor as well.
Recommend for every 500 watts MAX you use a .5 Farad cap
Example: 1000 watts MAX - 1 Farad cap
You will also need what's called a "line level converter" if your stock head unit doesn't have RCA outputs or your amp doesn't have high-level inputs.
Try http://www.soundomain.com/shop you can find some really good deals, and this site is manufacturer certified. VERY IMPORTANT WHEN SHOPPING ON-LINE!!!
If you like I can send you some plans for reference. My plans are for a 4-th order band-pass bass box (A.K.A. bass-reflex) that holds two 12's.
Also included are java calculators you can use to figure parallel and series values given Ω values, tips on box building and types, calculating port diameter and length(if used), calculating box dimensions for types of boxes (sealed, wedge, cylindrical, etc.), materials needed and even how to make a jig for cutting perfect holes for your subs.
Just e-mail me sparky3489@yahoo.com
My system
Blaupunkt TSw1200 subs with a Sony Xplōd XM2200GTX.
My amp is 1200 watts (200 Watts RMS X 2), subs are 600 watts (200 Watts RMS) each, cap is 1.5 Farad w/digital readout
SPL is about 112 db each sub
Total cost(so far) = $410
------------------------------...
To the other people ranting about my answers.
Some people have made pot-shots at my post because my answers are "one size fits all" as one person put it. I have gotten at least 25 best answers (and growing) with e-mails requesting more information from this same post since I posted it.
I'm just trying to be as informative as I can be. There might be something the poster didn't think of, forgot about or doesn't know.
These peolpe may not like my style of response, but then, no one asked them.
Other Answers:
The size of the woofer does not mean it can produce MORE bass, just deeper sounding bass. You can have 4 10" Kicker Solo-X's and they will be louder than you can imagine.
or you can get 1 12 jbl supcomp and a good amp and it will hit hard enough to here 7blocks and sound like thunder in a house but you will need a good box good wiring
Source(s):
i have the best in town
the best choice would be to have 4-12" subs or 4-15"subs, it dont really matter the size of the speaker it depends on 1). how many watts each speaker can handle 2). how many ohms the speaker is 3). the size of the magnet on the speaker 4). the type of box the speakers are in. (eg. a free air box will have less of a bass hit than an isobaric box that traps the air inside the box and reverbs it). 5). the gauge of wire that is run fom the battery to the amp and the amp to the speakers 6).for a crisper bass sound you need to put dynamat in the area the subs are at to eliminate rattling and vibration.
the amp that is used depends on 1). how many watts the speaker can handle 2). if you bridge the amp 3). for 4 speakers you will need two seperate amps (2 speakers per amp)
Source(s):
i was formerly a car audio installer
id go with the 4 12s which should be boston acoustics but with a rockafasgate vd2000 trust me you never heard anything like it!!!!!! the speakers are gt2 pro series
It really depends on what kind of vehicle you have and how much money you're willing to spend. The more surface area you have, the more bass you're going to get. 2 - 15" subwoofers = 30" surface area; 3 - 12" subwoofers = 36" surface area.
Just make sure the subwoofers are placed into the appropriate size and style of enclosure (make certain the enclosure has enough airspace and you use the manufacturer recommended enclosure i.e. sealed, ported, bandpass, etc). Also, make sure you provide enough power to the subwoofers - if your subwoofers are rated 300 watts RMS, make sure you give them each 300 watts RMS from your amplifier.
Sorry did not read the whole question but w7 come in 13in speakers so dont know how that will help ya.
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Answers:
Look for this when buying an amp... http://www.crutchfield.com/S-OSAZiuYKz12/popups/cacomp.html
CEA-2006 Compliant
On May 28, 2003, the Consumer Electronics Association published standard CEA-2006, "Testing & Measurement Methods for Mobile Audio Amplifiers." This "voluntary" standard advocates a uniform method for determining an amplifier's RMS power and signal-to-noise ratio. Using 14.4 volts, RMS watts are measured into a 4-ohm impedance load at 1 percent Total Harmonic Distortion (THD) plus noise, at a frequency range (for general purpose amplifiers) of 20 Hz to 20,000 Hz. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. This applies to both external amplifiers and the amplifiers within in-dash receivers
If an amp doesn't have this rating, it's doesn't produce the watts it says it does.
http://spkrbox1.spaces.msn.com/ for real "sound" advice.
Your system won't mean squat without a well designed box to put your subs in. Some manufacturers have recommendations as to dimensions of various types of boxes. It is best to find someone who builds boxes if you go with something other than a sealed box.
You should always match up RMS (Root Mean Square) watts of Subs and amp per channel as well as impedance's(resistances). When a sub has rating of 600 Watts MAX it really has an RMS rating of about 200 Watts RMS. RMS is the nominal wattage your most likely going to get out of it. Remember, a 200 Watts RMS amplifier has more power output than a 200 Watt MAX.
If your amp is rated at 4Ω don't subject it to 2Ω, it will fry.
Here is the formula for subs in parallel:
Z = 1 / (1/sub1 + 1/sub2 + 1/sub3 + ....)
For series, just add them up (sub1 + sub2 + ...).
You can mix and match these equations to get the right impedance required by your amp.
Example 1: Amp is 2 channel and rated at 4Ω, 4 subs @ 4Ω each. If I connect two in parallel and the other two in parallel and connect the two pairs in series, I would have a total impedance(resistance) of 4Ω. So to the amp, it's just one sub.
Example 2: Amp is rated 1Ω mono, 2 subs @ 4Ω each dual voice coil. If I connect two voice coils in parallel and the other two voice coils in series and connect the two subs in parallel, I would have a total impedance of 1.6Ω. Which would be perfect for a 1Ω stable mono amp.
You should use a capacitor as well.
Recommend for every 500 watts MAX you use a .5 Farad cap
Example: 1000 watts MAX - 1 Farad cap
You will also need what's called a "line level converter" if your stock head unit doesn't have RCA outputs or your amp doesn't have high-level inputs.
Try http://www.soundomain.com/shop you can find some really good deals, and this site is manufacturer certified. VERY IMPORTANT WHEN SHOPPING ON-LINE!!!
If you like I can send you some plans for reference. My plans are for a 4-th order band-pass bass box (A.K.A. bass-reflex) that holds two 12's.
Also included are java calculators you can use to figure parallel and series values given Ω values, tips on box building and types, calculating port diameter and length(if used), calculating box dimensions for types of boxes (sealed, wedge, cylindrical, etc.), materials needed and even how to make a jig for cutting perfect holes for your subs.
Just e-mail me sparky3489@yahoo.com
My system
Blaupunkt TSw1200 subs with a Sony Xplōd XM2200GTX.
My amp is 1200 watts (200 Watts RMS X 2), subs are 600 watts (200 Watts RMS) each, cap is 1.5 Farad w/digital readout
SPL is about 112 db each sub
Total cost(so far) = $410
------------------------------...
To the other people ranting about my answers.
Some people have made pot-shots at my post because my answers are "one size fits all" as one person put it. I have gotten at least 25 best answers (and growing) with e-mails requesting more information from this same post since I posted it.
I'm just trying to be as informative as I can be. There might be something the poster didn't think of, forgot about or doesn't know.
These peolpe may not like my style of response, but then, no one asked them.
Other Answers:
The size of the woofer does not mean it can produce MORE bass, just deeper sounding bass. You can have 4 10" Kicker Solo-X's and they will be louder than you can imagine.
or you can get 1 12 jbl supcomp and a good amp and it will hit hard enough to here 7blocks and sound like thunder in a house but you will need a good box good wiring
Source(s):
i have the best in town
the best choice would be to have 4-12" subs or 4-15"subs, it dont really matter the size of the speaker it depends on 1). how many watts each speaker can handle 2). how many ohms the speaker is 3). the size of the magnet on the speaker 4). the type of box the speakers are in. (eg. a free air box will have less of a bass hit than an isobaric box that traps the air inside the box and reverbs it). 5). the gauge of wire that is run fom the battery to the amp and the amp to the speakers 6).for a crisper bass sound you need to put dynamat in the area the subs are at to eliminate rattling and vibration.
the amp that is used depends on 1). how many watts the speaker can handle 2). if you bridge the amp 3). for 4 speakers you will need two seperate amps (2 speakers per amp)
Source(s):
i was formerly a car audio installer
id go with the 4 12s which should be boston acoustics but with a rockafasgate vd2000 trust me you never heard anything like it!!!!!! the speakers are gt2 pro series
It really depends on what kind of vehicle you have and how much money you're willing to spend. The more surface area you have, the more bass you're going to get. 2 - 15" subwoofers = 30" surface area; 3 - 12" subwoofers = 36" surface area.
Just make sure the subwoofers are placed into the appropriate size and style of enclosure (make certain the enclosure has enough airspace and you use the manufacturer recommended enclosure i.e. sealed, ported, bandpass, etc). Also, make sure you provide enough power to the subwoofers - if your subwoofers are rated 300 watts RMS, make sure you give them each 300 watts RMS from your amplifier.
Sorry did not read the whole question but w7 come in 13in speakers so dont know how that will help ya.