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- Halfbiass...Electron Herder and Backass Woof
Dual-500 king of the Castle
- Thread starter grapplesaw
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- Nov 15, 2021
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- near Liverpool, NY
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- Lifelong student / listening = bliss
- Joined
- Jan 14, 2011
- Messages
- 74,832
- Location
- Gillette, Wyo.
- Tagline
- Halfbiass...Electron Herder and Backass Woof
I am going to tri amp Mark. It will be crossed with a couple of Rane AC-23 electronic crossovers. The Rane has a 24 db roll off per octave and there are 41 steps in the cross over frequency.
To set it all up the left and right( k-horns) may use the DBX driveRack PA2 electronic crossover as it has variable slope with up to 48db rolloff per octave and longer time delay settings than the Rane. We’ll see which is best.
I will Use two dual 500 using one channel for low range and one for the squeaker. The BMS have 16 ohm voice coils so this should work. to finish the highs will use 400 ll with a G board for tweeters. I am doing a combo stereo and surond sound set up. Center will use one 700 and one channel of a 400 in same setup With a Rane AC22 running in mono
To set it all up the left and right( k-horns) may use the DBX driveRack PA2 electronic crossover as it has variable slope with up to 48db rolloff per octave and longer time delay settings than the Rane. We’ll see which is best.
I will Use two dual 500 using one channel for low range and one for the squeaker. The BMS have 16 ohm voice coils so this should work. to finish the highs will use 400 ll with a G board for tweeters. I am doing a combo stereo and surond sound set up. Center will use one 700 and one channel of a 400 in same setup With a Rane AC22 running in mono
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I was thinking that myself as I read Grappelsaw's post. Steep crossovers seem to suffer more from phase issues. Part of the reason the Thiel crossovers are so damn complicated (in addition to the sloped baffle).
And I further suspect you need fairly exotic equipment to identify it is happening. I don't know that you would pick up on it audibly, unless you could A-B between phase distorted and not phase distorted. The "ambience" setting on my boom box sounds pleasant and is using this technology to do so. So, it wouldn't necessarily sound unpleasant, but it would not be a faithful reproduction of the source (which is my goal unless using old receivers).
And I further suspect you need fairly exotic equipment to identify it is happening. I don't know that you would pick up on it audibly, unless you could A-B between phase distorted and not phase distorted. The "ambience" setting on my boom box sounds pleasant and is using this technology to do so. So, it wouldn't necessarily sound unpleasant, but it would not be a faithful reproduction of the source (which is my goal unless using old receivers).
Jim you may be right
However I will use the drive rack PA 2 to do all this for me It is computer controlled right from my iPad
It uses a precision microphone that has been measured for inaccurate readings then offsets get put into the DBX unit
just stand back and see what it comes up with we will know soon after the horns are ready I can record these settings from the PA-2 and input them into my Rane crossovers and equalizer if I want to use them accurately
google the DBX PA2 and see what it can do Jim I hope You will be impressed
However I will use the drive rack PA 2 to do all this for me It is computer controlled right from my iPad
It uses a precision microphone that has been measured for inaccurate readings then offsets get put into the DBX unit
just stand back and see what it comes up with we will know soon after the horns are ready I can record these settings from the PA-2 and input them into my Rane crossovers and equalizer if I want to use them accurately
google the DBX PA2 and see what it can do Jim I hope You will be impressed
New better results using dead short on inputs
having great success on my resent 700B build I wanted to revisit the grounding topography of this wonderful amp. I applied the lessons learned and I am most pleased with the results. I will be guiding Spencer to apply this to his amp.
Right low rail 110uV
left low rail 208.7uV
right high rail 123.4 uV
left high rail 265.5 uV
having great success on my resent 700B build I wanted to revisit the grounding topography of this wonderful amp. I applied the lessons learned and I am most pleased with the results. I will be guiding Spencer to apply this to his amp.
Right low rail 110uV
left low rail 208.7uV
right high rail 123.4 uV
left high rail 265.5 uV
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