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
Low Earth Orbit
DIY Audio
Modular Mid-High
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="Mark Wilkinson" data-source="post: 208603" data-attributes="member: 8989"><p>Hi Peter, thanks for the kind words.</p><p></p><p>Regarding efficiency, .....yes, as you surmised, I was using the term 'efficiency' in a post crossover, post EQ, context.</p><p>I should have stated that, sorry.</p><p></p><p>I use the same crossovers and individually flatten response for each box. It's pretty easy with the FIR to get measured traces that look near identical. Then I run pink noise through that processing, and take 1-2 min SPL LEQ's, along with simultaneous RMS voltage averages at the speakers.</p><p></p><p>A little math and I feel I have a valid real world comparison that reflects intended usage.....kinda a measured "average net efficiency"</p><p>Does this hold water? See any pitfalls? It's really helped me compare subs...this is the first time I tried it higher up in freq.</p><p></p><p>Major edit: I just realized in trying to retest efficiency outdoors, that the update to smaart has changed the way LEQ triggers.</p><p>Will post new meas when confident....I apologize</p><p></p><p>OK, chasing my tail... although SPL choices/toggles in smaart have changed, it seems I was lucky when i made prior indoor "efficiency" meas.</p><p>Today's new outdoor measurements agree with prior ones.....</p></blockquote><p></p>
[QUOTE="Mark Wilkinson, post: 208603, member: 8989"] Hi Peter, thanks for the kind words. Regarding efficiency, .....yes, as you surmised, I was using the term 'efficiency' in a post crossover, post EQ, context. I should have stated that, sorry. I use the same crossovers and individually flatten response for each box. It's pretty easy with the FIR to get measured traces that look near identical. Then I run pink noise through that processing, and take 1-2 min SPL LEQ's, along with simultaneous RMS voltage averages at the speakers. A little math and I feel I have a valid real world comparison that reflects intended usage.....kinda a measured "average net efficiency" Does this hold water? See any pitfalls? It's really helped me compare subs...this is the first time I tried it higher up in freq. Major edit: I just realized in trying to retest efficiency outdoors, that the update to smaart has changed the way LEQ triggers. Will post new meas when confident....I apologize OK, chasing my tail... although SPL choices/toggles in smaart have changed, it seems I was lucky when i made prior indoor "efficiency" meas. Today's new outdoor measurements agree with prior ones..... [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Low Earth Orbit
DIY Audio
Modular Mid-High
Top
Bottom
Sign-up
or
log in
to join the discussion today!