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Low Earth Orbit
DIY Audio
New DIY Mid High (90deg) - AKA PM90
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<blockquote data-quote="Peter Morris" data-source="post: 137648" 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'">I’m sure you're a 100% correct … but WOW that MUCH BASS! I knew you guys over the other side of the big pond like a lot of bass, but …. 30dB more !!!!</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'">What I find interesting is that so many people argue for a flat frequency response, the flatter the better, yet they "hay-stack" the sub frequencies. I typically see 10dB or more. </span></span></span></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">Why do we like it that way? Wouldn’t it more logical to integrate the subs a little more smoothly? You would assume the original recordings already had right amount of LF so the DJ boys would only need a flat system. </span></span></span></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">When I voice this system with a measurement mic (earthworks M30), logically the tonal balance should exactly the same as my natural voice. To do that, I talk into a flat surface (eg. my iPad) so that I can hear the real timbre of my voice as it’s reflected from the surface.</span></span></span><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">I then compare it to what I hear from the speakers. When they match, the frequency response is not flat. There is quite a bit of extra low frequency, but it sounds great on both music play back and live music.</span></span></span></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">In this case it’s not really taste. I have used an almost perfectly microphone – flat frequency response with no proximity effect and voiced the speaker so it sounded exactly like the original input. What my ears are telling me does not match what I’m measuring.</span></span></span></p><p></p><p><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'">I think there are a lot of things happening regarding how we perceive sound particularly in relation to the early arrivals within the first 30ms.</span></span></span><span style="font-family: 'Calibri'"><span style="font-size: 12px"><span style="color: #000000">In this respect I really like some of the work that Raimonds Skuruls has done. </span></span></span><a href="http://aplaudio.com/conc2/" target="_blank"><span style="font-family: 'Calibri'"><span style="font-size: 12px"><span style="color: #0000ff">http://aplaudio.com/conc2/</span></span></span></a><span style="font-size: 12px"><span style="color: #000000"><span style="font-family: 'Calibri'"> What I ended up with almost exactly matches what he suggests.</span></span></span></p></blockquote><p></p>
[QUOTE="Peter Morris, post: 137648, member: 652"] Re: New DIY Mid High [SIZE=3][COLOR=#000000][FONT=Calibri]I’m sure you're a 100% correct … but WOW that MUCH BASS! I knew you guys over the other side of the big pond like a lot of bass, but …. 30dB more !!!![/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri] What I find interesting is that so many people argue for a flat frequency response, the flatter the better, yet they "hay-stack" the sub frequencies. I typically see 10dB or more. [/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]Why do we like it that way? Wouldn’t it more logical to integrate the subs a little more smoothly? You would assume the original recordings already had right amount of LF so the DJ boys would only need a flat system. [/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]When I voice this system with a measurement mic (earthworks M30), logically the tonal balance should exactly the same as my natural voice. To do that, I talk into a flat surface (eg. my iPad) so that I can hear the real timbre of my voice as it’s reflected from the surface.[/FONT][/COLOR][/SIZE][SIZE=3][COLOR=#000000][FONT=Calibri]I then compare it to what I hear from the speakers. When they match, the frequency response is not flat. There is quite a bit of extra low frequency, but it sounds great on both music play back and live music.[/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]In this case it’s not really taste. I have used an almost perfectly microphone – flat frequency response with no proximity effect and voiced the speaker so it sounded exactly like the original input. What my ears are telling me does not match what I’m measuring.[/FONT][/COLOR][/SIZE] [SIZE=3][COLOR=#000000][FONT=Calibri]I think there are a lot of things happening regarding how we perceive sound particularly in relation to the early arrivals within the first 30ms.[/FONT][/COLOR][/SIZE][FONT=Calibri][SIZE=3][COLOR=#000000]In this respect I really like some of the work that Raimonds Skuruls has done. [/COLOR][/SIZE][/FONT][URL="http://aplaudio.com/conc2/"][FONT=Calibri][SIZE=3][COLOR=#0000ff]http://aplaudio.com/conc2/[/COLOR][/SIZE][/FONT][/URL][SIZE=3][COLOR=#000000][FONT=Calibri] What I ended up with almost exactly matches what he suggests.[/FONT][/COLOR][/SIZE] [/QUOTE]
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New DIY Mid High (90deg) - AKA PM90
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