4 Pi vs DIY Sound Group's Fusion Sentinel 15"
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MTG90 built a 2226h/dna360/seos12 and compared it to the sentinel kit. http://www.diysoundgroup.com/forum/index.php?topic=141.0
The variable between the seos speaker MTG90 built and the upgraded 4Pi are the crossover and horn since the CDs measure almost the same. Not a direct comparison but might give you insight into the differences between the 15" drivers.
The variable between the seos speaker MTG90 built and the upgraded 4Pi are the crossover and horn since the CDs measure almost the same. Not a direct comparison but might give you insight into the differences between the 15" drivers.
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More similar than not. Aesthetics, price, and low frequency goals are probably the best way to decide.
These are the best links I've found researching these speakers:
http://audioroundtable.com/forum/index.php?t=msg&&th=17246&goto=73408#msg_73408
http://www.avsforum.com/t/1422151/wayne-parhams-h290c-waveguide-measurements
http://audioroundtable.com/forum/index.php?t=msg&&th=17246&goto=73408#msg_73408
http://www.avsforum.com/t/1422151/wayne-parhams-h290c-waveguide-measurements
I'm in Pottstown...I'd love to hear them before building a set!
Quote:
Originally Posted by Gorilla83 /t/1469042/4-pi-vs-diy-sound-groups-fusion-sentinel-15/0_60#post_23223869
Where are you in PA? I have a sentinel front stage you could check out.![]()
I'm in Pottstown...I'd love to hear them before building a set!
MTG90 did a great job on the Sentinels. The reason for the lower cost is because all those speakers are priced at break even costs because they are DIY community driven designs, not 'for profit' designs. But they lack nothing.
By the way, the B&C looks really good with the gloss finish waveguide.
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By the way, the B&C looks really good with the gloss finish waveguide.
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Here is just the kit with assembled crossover. No upgrades. $400
http://www.pispeakers.com/catalog/product_info.php/cPath/3/products_id/108
Here is the assembled completely built product. No upgrades. $1000
http://www.pispeakers.com/catalog/product_info.php/cPath/1/products_id/105
I did not see an option for precut baffles.
http://www.pispeakers.com/catalog/product_info.php/cPath/3/products_id/108
Here is the assembled completely built product. No upgrades. $1000
http://www.pispeakers.com/catalog/product_info.php/cPath/1/products_id/105
I did not see an option for precut baffles.
"Ash R", the Sentinel was designed by MTG90, not Bill Waslo. The charts you linked weren't from any speaker kit. The one response curve was done by a forum member during a crossover experiment after he clearly said he's never designed a crossover before......and before it was finished.
The Sentinel is a completed kit and uses a B&C woofer and the DNA-360, not the Eminence woofer and Eminence compression driver. Nothing wrong with Eminence, but the 15" B&C woofer is a nicer more expensive woofer. The kit also uses the heavier 15 and 16 gauge inductors.
I think the standard Eminence 4pi might be a closer match to the Karma-15 that uses a nice smooth Celestion woofer.
Hope I was able to help clear up any confusion you might have. In the end, I think either speaker brand would be a good choice. The Sentinel just happens to use beefier components, which some people may or may not need. The guys that built them were very pleased that they could be run full range and handle ridiculous amounts of power and still sound extremely clean and clear. No doubt MTG90 designed a heck of a speaker.
The Sentinel is a completed kit and uses a B&C woofer and the DNA-360, not the Eminence woofer and Eminence compression driver. Nothing wrong with Eminence, but the 15" B&C woofer is a nicer more expensive woofer. The kit also uses the heavier 15 and 16 gauge inductors.
I think the standard Eminence 4pi might be a closer match to the Karma-15 that uses a nice smooth Celestion woofer.
Hope I was able to help clear up any confusion you might have. In the end, I think either speaker brand would be a good choice. The Sentinel just happens to use beefier components, which some people may or may not need. The guys that built them were very pleased that they could be run full range and handle ridiculous amounts of power and still sound extremely clean and clear. No doubt MTG90 designed a heck of a speaker.
I think filtor1 pointed out an important point, which is that the 4pi comes with an assembled crossover. But, the sentinel has an available flat pack. So, I think it just depends on if you are more comfortable with wood work or assembling the crossover. I believe the Sentinel is probably the better value but the 4pi kit is still one hell of a good value also.
I think Ash R was referring to this chart:
which appears to be generated from Bill's Designer 10 zip .
That's the ripple that Wayne uses as proof when he describe the SEOS12 as a truncated horn in Ash's link. Presumably it's also those ripples that Wayne is against correcting with EQ/XO.
Here's hoping that this doesn't get ugly like the last time Pi and SEOS stuff was directly compared...
I think Ash R was referring to this chart:
which appears to be generated from Bill's Designer 10 zip .
That's the ripple that Wayne uses as proof when he describe the SEOS12 as a truncated horn in Ash's link. Presumably it's also those ripples that Wayne is against correcting with EQ/XO.
Here's hoping that this doesn't get ugly like the last time Pi and SEOS stuff was directly compared...
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