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
New DIY Mid High (90deg) - AKA PM90
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="Peter Morris" data-source="post: 132602" data-attributes="member: 652"><p>Re: New DIY Mid High</p><p></p><p></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">Hi Uwe,</span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'"></span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">I was aware of the Four Audio stuff … I have been wishing I could to do all of those tricks for years. </span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'"></span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">When I did the FIR settings for Turbossound's Flex array the problem was controlling horizontal directivity through the HF and VHF crossover region. What you have described is exactly what I wish I could have done for the Turbo's; and this box. Unfortunately the Lake’s interface does not allow you to do this. The Flex took me a week to solve the directivity problems, but I eventually got there. The result of using FIR filters and the new crossover settings was a very noticeable improvement in sound quality.</span></span></span></p><p></p><p><a href="http://www.turbosound.com/docs2/latest_news/EFEFZuEykpMTVAGkNQ.shtml" target="_blank"><span style="font-family: 'Calibri'"><span style="font-size: 12px"><span style="color: #0000ff">http://www.turbosound.com/docs2/latest_news/EFEFZuEykpMTVAGkNQ.shtml</span></span></span></a></p><p><a href="http://www.turbosound.com/docs2/latest_news/EFEFZuEykpMTVAGkNQ.shtml" target="_blank"><span style="font-family: 'Calibri'"><span style="font-size: 12px"><span style="color: #0000ff"></span></span></span></a></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">What’s happens off axis is really about the energy in the reverberant field.</span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'"></span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">With respect to this design, I’m not sure what happens when you use a dipole to control directivity. I suspect there is more energy in the reverberant field than the initial pattern would indicate – just a guess. </span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'"></span></span></span></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">Here is a plot of Turbosound’s Flex that has its two 10's in a dipole, note the two lumps of energy around 500Hz. I suspect this is what is happening with my box in the vertical plan and that the energy in the reverberant field is better balanced than my frequency response plots would initially suggest.</span></span></span></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">BTW – thanks again for your input.</span></span></span></p></blockquote><p></p>
[QUOTE="Peter Morris, post: 132602, member: 652"] Re: New DIY Mid High [SIZE=3][COLOR=#000000][FONT=Calibri]Hi Uwe,[/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri] I was aware of the Four Audio stuff … I have been wishing I could to do all of those tricks for years. [/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]When I did the FIR settings for Turbossound's Flex array the problem was controlling horizontal directivity through the HF and VHF crossover region. What you have described is exactly what I wish I could have done for the Turbo's; and this box. Unfortunately the Lake’s interface does not allow you to do this. The Flex took me a week to solve the directivity problems, but I eventually got there. The result of using FIR filters and the new crossover settings was a very noticeable improvement in sound quality.[/FONT][/COLOR][/SIZE] [URL="http://www.turbosound.com/docs2/latest_news/EFEFZuEykpMTVAGkNQ.shtml"][FONT=Calibri][SIZE=3][COLOR=#0000ff]http://www.turbosound.com/docs2/latest_news/EFEFZuEykpMTVAGkNQ.shtml [/COLOR][/SIZE][/FONT][/URL] [SIZE=3][COLOR=#000000][FONT=Calibri]What’s happens off axis is really about the energy in the reverberant field. [/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]With respect to this design, I’m not sure what happens when you use a dipole to control directivity. I suspect there is more energy in the reverberant field than the initial pattern would indicate – just a guess. [/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]Here is a plot of Turbosound’s Flex that has its two 10's in a dipole, note the two lumps of energy around 500Hz. I suspect this is what is happening with my box in the vertical plan and that the energy in the reverberant field is better balanced than my frequency response plots would initially suggest.[/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]BTW – thanks again for your input.[/FONT][/COLOR][/SIZE] [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Low Earth Orbit
DIY Audio
New DIY Mid High (90deg) - AKA PM90
Top
Bottom
Sign-up
or
log in
to join the discussion today!