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Ricci's Skhorn Subwoofer


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#101 Ricci

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Posted 11 January 2017 - 03:10 PM

Yes have a UMM-6 calibrated mic. Let me know what you'd like to see. 

 

I know you're busy but if you get a day to mess around I wouldn't mind seeing a close mic of a vent and of the horn/slot both with no processing. Also an in room at the listening position would be cool. It's going to be a few months probably until I'll be in a position to take my own measurements so I'm really curious how close it turns out to the models.

 

Done any more listening?



#102 dsl1

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Posted 12 January 2017 - 03:26 AM

I know you're busy but if you get a day to mess around I wouldn't mind seeing a close mic of a vent and of the horn/slot both with no processing. Also an in room at the listening position would be cool. It's going to be a few months probably until I'll be in a position to take my own measurements so I'm really curious how close it turns out to the models.

 

Done any more listening?

 

Ok, can do it this weekend.

 

Yeah a bit more listening. Really like it. Both this and the Othorn do something right that I'm not sure how to quantify.



#103 Ricci

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Posted 13 January 2017 - 03:45 PM

Yeah a bit more listening. Really like it. Both this and the Othorn do something right that I'm not sure how to quantify.

 

It's probably the extra speed and slam these designs offer.

 

I spent months making sure these would be super ultra mega fast and airy sounding. On my first prototypes I actually had too much speed and I found out that the cones were breaking from the G-forces involved in stopping and starting so quickly. In fact one of the early prototypes exploded into a flaming inferno when I fed it 1.21 giga-volts and the air friction inside the cabinet became too great due to the extreme high-speed and airiness. The sound was so tight that the bass notes stopped and started faster than my ear drum could respond to the pressure changes. It was almost like the bass wasn't even there. I'd actually created a bass system that was too tight with too much speed. In fact these new cabs would often need delayed by 3 or 4 seconds so that the HF from the tweeters could keep up.  A lot of this had to do with the arrangement of the panels inside the sub that create the particle vortex processor chamber and high velocity, phase recombining, acoustic injection system.  After a lot of tweaks I finally have it detuned to a point where it isn't weaponized and is safe for domestic use but still maintains every bit of the speed and tightness almost 73% of the time.


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#104 lukeamdman

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Posted 13 January 2017 - 04:15 PM

It's probably the extra speed and slam these designs offer.

I spent months making sure these would be super ultra mega fast and airy sounding. On my first prototypes I actually had too much speed and I found out that the cones were breaking from the G-forces involved in stopping and starting so quickly. In fact one of the early prototypes exploded into a flaming inferno when I fed it 1.21 giga-volts and the air friction inside the cabinet became too great due to the extreme high-speed and airiness. The sound was so tight that the bass notes stopped and started faster than my ear drum could respond to the pressure changes. It was almost like the bass wasn't even there. I'd actually created a bass system that was too tight with too much speed. In fact these new cabs would often need delayed by 3 or 4 seconds so that the HF from the tweeters could keep up. A lot of this had to do with the arrangement of the panels inside the sub that create the particle vortex processor chamber and high velocity, phase recombining, acoustic injection system. After a lot of tweaks I finally have it detuned to a point where it isn't weaponized and is safe for domestic use but still maintains every bit of the speed and tightness almost 73% of the time.


You and that guy from b&c would hit it off.
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#105 SME

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Posted 13 January 2017 - 07:38 PM

It's probably the extra speed and slam these designs offer.

 

I spent months making sure these would be super ultra mega fast and airy sounding. On my first prototypes I actually had too much speed and I found out that the cones were breaking from the G-forces involved in stopping and starting so quickly. In fact one of the early prototypes exploded into a flaming inferno when I fed it 1.21 giga-volts and the air friction inside the cabinet became too great due to the extreme high-speed and airiness. The sound was so tight that the bass notes stopped and started faster than my ear drum could respond to the pressure changes. It was almost like the bass wasn't even there. I'd actually created a bass system that was too tight with too much speed. In fact these new cabs would often need delayed by 3 or 4 seconds so that the HF from the tweeters could keep up.  A lot of this had to do with the arrangement of the panels inside the sub that create the particle vortex processor chamber and high velocity, phase recombining, acoustic injection system.  After a lot of tweaks I finally have it detuned to a point where it isn't weaponized and is safe for domestic use but still maintains every bit of the speed and tightness almost 73% of the time.

 

Wow!  It sounds like the bass from this thing is so fast, it actually exceeds the sound barrier.  Can you talk about its hyper-extended pistonic action?  That probably has more to do with the good slam than just the speed, you know.



#106 dgage

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Posted 13 January 2017 - 08:41 PM

It's probably the extra speed and slam these designs offer.
 
I spent months making sure these would be super ultra mega fast and airy sounding. On my first prototypes I actually had too much speed and I found out that the cones were breaking from the G-forces involved in stopping and starting so quickly. In fact one of the early prototypes exploded into a flaming inferno when I fed it 1.21 giga-volts and the air friction inside the cabinet became too great due to the extreme high-speed and airiness. The sound was so tight that the bass notes stopped and started faster than my ear drum could respond to the pressure changes. It was almost like the bass wasn't even there. I'd actually created a bass system that was too tight with too much speed. In fact these new cabs would often need delayed by 3 or 4 seconds so that the HF from the tweeters could keep up.  A lot of this had to do with the arrangement of the panels inside the sub that create the particle vortex processor chamber and high velocity, phase recombining, acoustic injection system.  After a lot of tweaks I finally have it detuned to a point where it isn't weaponized and is safe for domestic use but still maintains every bit of the speed and tightness almost 73% of the time.

e4307399e9111e85cb58f7612f33767b.jpg

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#107 maxmercy

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Posted 14 January 2017 - 01:29 AM

I sincerely hope  you addressed the distortion/comb filtering and overall experience in your room in your fast-bass system with these:

 

http://www.machinady...m/machina31.htm

 

And think of all the upgrades you could do with all of these products:

 

http://www.machinady...om/machina5.htm

 

We are so behind the curve here at d-b it sucks.

 

JSS


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#108 Ricci

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Posted 14 January 2017 - 02:29 AM

Oh damn that's just what we need! A few pebbles scattered about the room. What are we thinking with bass traps, measurement systems and modern dsp? Simply strategically place a few minerals and instantly get that last 1%. Only $99 too. What a steal.

#109 lukeamdman

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Posted 14 January 2017 - 02:36 AM

Sadly, I know people that would fall for that.

#110 dsl1

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Posted 14 January 2017 - 04:54 AM

It's probably the extra speed and slam these designs offer.

 

I spent months making sure these would be super ultra mega fast and airy sounding. On my first prototypes I actually had too much speed and I found out that the cones were breaking from the G-forces involved in stopping and starting so quickly. In fact one of the early prototypes exploded into a flaming inferno when I fed it 1.21 giga-volts and the air friction inside the cabinet became too great due to the extreme high-speed and airiness. The sound was so tight that the bass notes stopped and started faster than my ear drum could respond to the pressure changes. It was almost like the bass wasn't even there. I'd actually created a bass system that was too tight with too much speed. In fact these new cabs would often need delayed by 3 or 4 seconds so that the HF from the tweeters could keep up.  A lot of this had to do with the arrangement of the panels inside the sub that create the particle vortex processor chamber and high velocity, phase recombining, acoustic injection system.  After a lot of tweaks I finally have it detuned to a point where it isn't weaponized and is safe for domestic use but still maintains every bit of the speed and tightness almost 73% of the time.

 

That would explain it.

 

Piles of parts everywhere! Saw your email about the port blocks. Good, I had made them already :P
 

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#111 Ricci

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Posted 14 January 2017 - 01:45 PM

New 4K tv to watch while working in the shop?

32 handles for 2 cabs. Didn't realize till I went to buy them. At least I got a price break for so many.
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#112 dsl1

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Posted 15 January 2017 - 02:38 AM

New 4K tv to watch while working in the shop?

32 handles for 2 cabs. Didn't realize till I went to buy them. At least I got a price break for so many.

 

It's a shop / baniels storage! Nice TV though :)

 

We are getting close. Finished one hatch and it lines up perfectly which was the last concern. 

 

Went ahead and got all the inserts done which took a minute..

 

KblgXsZ.jpg?1

 

All parts done except the remaining hatches holes + handle cutouts and cutting the angles. 

 

LX4plSX.jpg

 

So many pieces!



#113 chrapladm

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Posted 16 January 2017 - 07:38 AM

Since I dont have the input screen for HR on this sub what wattage/voltage should I aim for per 21"?

 

I was looking at getting a clone amp but for around the same price I could get the SP plate amp. Not sure if the 4000 would be enough but amp limited isnt a bad thing. I cant afford the SP12000 and the other option is the FP14 clone. I am still hesitant on the clone. It would be more than enough I am sure but I am trying to finally get my very first SP amp.


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#114 Ricci

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Posted 16 January 2017 - 05:55 PM

Since I dont have the input screen for HR on this sub what wattage/voltage should I aim for per 21"?

 

Post #1 has the preliminary cabinet inputs in HR for a 21. Subject to a bit of tweaking depending on how the finished version measures. Should be close. Change the driver parameters depending on the driver wanted.

 

As far as the amplifier required it depends on the driver used and how they are wired. With most of the drivers I've modeled this should have about 1 to 2dB sensitivity advantage over an Othorn from 35-95Hz. It will make a lot of noise with just a 500w amp. If you were to put a pair of B&C 18PZB100's in there and plug some ports to drop the tuning a 500w amp should be a decent match. If using the 21sw152's or one of the other big neo pro 21's and you are looking to get everything out of it a 4-6 kw rated amp should get the drivers near xmax or slightly past. Of course cutting that in half to a 2-3kw amp only loses 3dB.

 

What I'm saying is you don't have to use a 6000watt monster amp on one of these. It is a sensitive cab so it's going to do a lot of work with even a limited amount of power.



#115 chrapladm

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Posted 17 January 2017 - 06:39 AM

Not sure why my post got deleted by my browser. I forgot about the HR input picture from the first post. I will be building the Skhorn with a pair of 21SW152's. I unfortunately have to wait for BC to build the second 21 in Feb. So that will be another 1.5 months until I get the speaker in hand. I will be using Penn Elcom handles for my build and possibly the SP4000 plate amp. I will be amp limited but I cant afford the SP6000 plate amp for another 300. This amp will already be pushing my budget but I would like to try the SP amps. If I need more SPL I will just build another cabinet.


"Music is not in the notes, but in the silence between."


#116 MemX

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Posted 17 January 2017 - 06:23 PM

I sincerely hope  you addressed the distortion/comb filtering and overall experience in your room in your fast-bass system with these:

 

http://www.machinady...m/machina31.htm

 

And think of all the upgrades you could do with all of these products:

 

http://www.machinady...om/machina5.htm

 

We are so behind the curve here at d-b it sucks.

 

JSS

 

 

Oh damn that's just what we need! A few pebbles scattered about the room. What are we thinking with bass traps, measurement systems and modern dsp? Simply strategically place a few minerals and instantly get that last 1%. Only $99 too. What a steal.

 

 

Sadly, I know people that would fall for that.

 

With all the nonsense that is spouted on some audiophool forums, I don't even know if that's a joke website or not!!



#117 Ricci

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Posted 17 January 2017 - 09:29 PM

Not sure why my post got deleted by my browser. I forgot about the HR input picture from the first post. I will be building the Skhorn with a pair of 21SW152's. I unfortunately have to wait for BC to build the second 21 in Feb. So that will be another 1.5 months until I get the speaker in hand. I will be using Penn Elcom handles for my build and possibly the SP4000 plate amp. I will be amp limited but I cant afford the SP6000 plate amp for another 300. This amp will already be pushing my budget but I would like to try the SP amps. If I need more SPL I will just build another cabinet.

 

With a 4000 on those drivers it will be plenty loud for a single cab. Actually that should be about perfect for the cab if you block 2 ports for the 25Hz tune. 80-85volts with the 2 drivers in parallel. You won't quite reach xmax with all ports open but it will be significantly louder than an Othorn anyway.


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#118 SME

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Posted 17 January 2017 - 10:40 PM

FYI, the max RMS voltage ratings of the SP amps are 126V for the 6kW amp and 109V for the 4kW amps.  See the specs.  I assume that those apply to the plate amps as well.



#119 dgage

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Posted 17 January 2017 - 11:33 PM

FYI, the max RMS voltage ratings of the SP amps are 126V for the 6kW amp and 109V for the 4kW amps.  See the specs.  I assume that those apply to the plate amps as well.

 

The rack mount amps are just a pair of the plate amps in a single enclosure.  They are actually completely separate monoblocks, pretty much only sharing the single power plug.


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#120 Ricci

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Posted 18 January 2017 - 02:44 AM

Right but that's unloaded. Clipping will occur at a lower voltage into a low impedance. If I recall the 6k would be something like 95volts into 2 ohms.




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