Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Help
Wiring, Electrical & Installation
Speaker wiring for low impedance
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="BoogerMan" data-source="post: 8491237" data-attributes="member: 668837"><p>Short answer: it causes sound cancellation. If you are referring to the guys that have like 8s or 10s in their door panels, that's a different story. They aren't running different sized subs in their box. They will have all 12s or all 15s or all 18s etc.</p><p></p><p>Long answer:</p><p></p><p>If you have two sound sources creating the same sound at the same time/amplitude/etc, there is of course a large change of cancellation. Wave cancellation is when waves of equal energy collide in such a way as you effectively dimish their energy. You can have cancellation without the sound waves being completely cancelled. Some freqs will be diminished, some may even be amplified due to wave reinforcement (same freq/amplitude waves close enough together to reinforce each other, opposite of cancellation).</p><p></p><p>The bottom line is the result will be an uneven frequency response, and one that likely will be all over the place. An EQ could adjust for it somewhat, but not completely.... and I really dont see the advantage of trying to do it.</p><p></p><p>You are simply trying to reproduce a bandwidth of frequencies accurately. A sub in a sealed enclosure gives a nice smooth flat response along the entire bandwidth usually, where as a ported box peaks output at a certain point, dropping off drastically below but remaining relatively flat above this freq (why low tuned boxes can have excellent SQ, contrary to what some people believe). So, why add another speaker of another size/brand/whatever that's going to complicate things?</p><p></p><p>The only real way Ive heard of mixing sub sizes effectively was with a fairly compex xover setup so each sub size played its own frequency band. But you also have to consider how well each sub will perform in its particular bandwidth, how well they will blend together, the transfer function of the vehicle and its huge impact on the sound, etc. Things get very complicated.</p><p></p><p>From</p><p></p><p><a href="http:////forums/subwoofers/91716-mixing-sub-sizes.html" target="_blank">http://www.caraudio.com/forums/subwoofers/91716-mixing-sub-sizes.html</a></p><p></p><p>But hey, if it sounds better to you, then who cares what we say //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif everyone has a preference and opinion.</p></blockquote><p></p>
[QUOTE="BoogerMan, post: 8491237, member: 668837"] Short answer: it causes sound cancellation. If you are referring to the guys that have like 8s or 10s in their door panels, that's a different story. They aren't running different sized subs in their box. They will have all 12s or all 15s or all 18s etc. Long answer: If you have two sound sources creating the same sound at the same time/amplitude/etc, there is of course a large change of cancellation. Wave cancellation is when waves of equal energy collide in such a way as you effectively dimish their energy. You can have cancellation without the sound waves being completely cancelled. Some freqs will be diminished, some may even be amplified due to wave reinforcement (same freq/amplitude waves close enough together to reinforce each other, opposite of cancellation). The bottom line is the result will be an uneven frequency response, and one that likely will be all over the place. An EQ could adjust for it somewhat, but not completely.... and I really dont see the advantage of trying to do it. You are simply trying to reproduce a bandwidth of frequencies accurately. A sub in a sealed enclosure gives a nice smooth flat response along the entire bandwidth usually, where as a ported box peaks output at a certain point, dropping off drastically below but remaining relatively flat above this freq (why low tuned boxes can have excellent SQ, contrary to what some people believe). So, why add another speaker of another size/brand/whatever that's going to complicate things? The only real way Ive heard of mixing sub sizes effectively was with a fairly compex xover setup so each sub size played its own frequency band. But you also have to consider how well each sub will perform in its particular bandwidth, how well they will blend together, the transfer function of the vehicle and its huge impact on the sound, etc. Things get very complicated. From [URL="http:////forums/subwoofers/91716-mixing-sub-sizes.html"]http://www.caraudio.com/forums/subwoofers/91716-mixing-sub-sizes.html[/URL] But hey, if it sounds better to you, then who cares what we say [IMG]//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif[/IMG] everyone has a preference and opinion. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Wiring, Electrical & Installation
Speaker wiring for low impedance
Top
Menu
Home
Refresh