when buying a speaker system, do i need a subwoofer?

what is it used for or should i get one?

Answer
Most full-range speakers (not Bose) need to have 3 different drivers to reproduce all the sound. These drivers are called:

- Tweeter
- MidRange
- Woofer

These speakers tend to be tall and take a lot of power even for a 2-speaker system. Try and power 5 full-range speakers and most receivers cannot handle it and most rooms are not big enough to surround you with 5 tower speakers.

They have found that small, monitor-style speakers with a tweeter & mid range drivers and a external self-powered subwoofer is cheaper, easier to setup and can be powered with a modest 75 watt receiver.

So you do want to buy a system with a separate self-powered subwoofer.

I have to disagree with some of the earlier answers posted here. Let me explain:

Bose - Cheats by putting an over-sized tweeter in a plastic cube to take the place of a tweeter - mid range driver. Then they force dealers to never put them on sale to create the illusion that they are a 'premium' brand. The sound from small plastic cubes is impressive, but you will NEVER find a positive review of these speakers. This is because Bose sues anybody who tries to publish a review.

Subwoofer is where things are connected - You run a single RCA cable to the sub from the receiver ... and thats it. Only if you have a un-powered sub do you wire speakers to the subwoofer. But then your receiver had better be good because it is powering the sub and taking away power to the other 5 speakers. A self-powered sub is preferred.

Car speaker system, amp, subwoofer, speakers?

navarady

Okay. I want to outset my car with a really loud set up. I want an extremely loud thumping subwoofer (or two) and speakers that I can turn up loud that wont blow out! I have no knowledge of what an amp is and which/what I need as far as those. Just what would you recommend me getting to create an amazing stereo in my car.
Thanks
PS I have a pioneer avic f900-bt as my stereo
Michael I am not allowed to email you
I need more answers on what to buy and what amps do

Answer
Extremely loud requires lots of power....

If your total system power is 1200 watts RMS or more, you will need to:

1. Upgrade the alternator to a high output alternator
2. Upgrade to a yellow top battery
3. Upgrade the "Big 3" - that is to replace (or add to) the power wire between the battery and alternator, the ground from the battery to the chassis and the ground strap from the engine/tranny to the chassis with at least 2 AWG wire.

Failure to do this will result in the early death of the alternator as it will eventually fail.

Here is a guide that will calculate what size alternator and power wires you need http://www.box.net/shared/uchv4dbk88

You will need Microsoft Excel. If you don't have Excel, use this link http://www.box.net/shared/nkkw1dhk4g

A second battery is never a good idea as it's an added strain on the alternator to charge two batteries AND supply power for the car. The ONLY time a second battery is useful is if the audio system is to be used with the car off.

A capacitor is only good so far as the audio system isn't trying to pull too much from the electrical system. A cap doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing else. If the current isn't there, a cap won't help.
The alternator must have at least 20% more amperage power than the entire vehicle and sound system combined for a cap to be of benefit which is ironically the same requirements for an amp to be efficient.

See my site for more info http://spkrbox1.spaces.live.com

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Title Post: when buying a speaker system, do i need a subwoofer?
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