Log in
Register
Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
Reply to thread
Home
Forums
Pro Audio
Varsity
dB calculations
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="Ivan Beaver" data-source="post: 137826" data-attributes="member: 30"><p>Re: dB calculations</p><p></p><p></p><p>It is NOT irrelevant.</p><p></p><p>There are OTHER factors that come into play-namely PHASE.</p><p></p><p>Here is a an example. Take 2 subs that are 134dB each. Now flip the polarity on ONE of them.</p><p></p><p>We don't need any math for people to realize that it will be QUIETER than either one alone-NOT louder.</p><p></p><p>It is NOT a simple matter of a couple of numbers. </p><p> </p><p></p><p>Any complicated question is easily answered by a simple to understand WRONG answer.</p><p></p><p></p><p>In sound sources it, depends on the spacing of the devices relative to the listening position and the freq involved.</p><p></p><p>Different freq will give different answers if everything else stays the same.</p><p></p><p>I still stand by my previous answer that it will be 6dB louder-due to the decreases radiation resistance caused by the multiple drivers acting on the same "body" of air.</p><p></p><p>I do agree that the location of the amp (inside or outside the cabinet) is of little consequence-except for possible cable losses over small long runs.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 137826, member: 30"] Re: dB calculations It is NOT irrelevant. There are OTHER factors that come into play-namely PHASE. Here is a an example. Take 2 subs that are 134dB each. Now flip the polarity on ONE of them. We don't need any math for people to realize that it will be QUIETER than either one alone-NOT louder. It is NOT a simple matter of a couple of numbers. Any complicated question is easily answered by a simple to understand WRONG answer. In sound sources it, depends on the spacing of the devices relative to the listening position and the freq involved. Different freq will give different answers if everything else stays the same. I still stand by my previous answer that it will be 6dB louder-due to the decreases radiation resistance caused by the multiple drivers acting on the same "body" of air. I do agree that the location of the amp (inside or outside the cabinet) is of little consequence-except for possible cable losses over small long runs. [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Pro Audio
Varsity
dB calculations
Top
Bottom
Sign-up
or
log in
to join the discussion today!