Vote: Which four 18 or 24 inch drivers for sealed enclosures and why? - Page 14 - AVS Forum
View Poll Results: Which four 18 or 24 inch drivers?
A. SI-24 17 22.97%
B. TC Sounds LMS 5400 Ultra 19 25.68%
C. TC Sounds Pro 5100 3 4.05%
D. UXL-18 13 17.57%
E. Dayton Ultimax18 10 13.51%
F. SI-18 8 10.81%
G. Other 4 5.41%
Voters: 74. You may not vote on this poll

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Old 03-04-2014, 08:54 AM
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Originally Posted by bass addict View Post

I'm going out on a limb, but I'm thinking the concern wasn't in regards to the driver.

I want to implement one just to be able to say I have a 24" woofer. biggrin.gif

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Old 03-04-2014, 09:04 AM
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Originally Posted by steve nn View Post

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Old 03-04-2014, 09:10 AM
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Seriously, I promise that's the last time I'll do that pic. It was a hooter the first time around though. LOL

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Old 03-04-2014, 09:15 AM
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Originally Posted by steve nn View Post

Seriously, I promise that's the last time I'll do that pic. It was a hooter the first time around though. LOL

That one was definitely a classic lol.

I was going to do a judge Dredd no thumbs up picture but couldn't find a good one in time. biggrin.gif

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Old 03-04-2014, 09:46 AM
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Originally Posted by beastaudio View Post

Not sure what issues you are concerned with, but I had one of those 24's for a long weekend on loan from SI and the build quality on that woofer was top-notch. I wouldn't hesitate to pop a few in my space if I still had room to do so biggrin.gif

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Originally Posted by bass addict View Post

I'm going out on a limb, but I'm thinking the concern wasn't in regards to the driver.

I want to implement one just to be able to say I have a 24" woofer. biggrin.gif

There are a few guys that keep talking about these "concerns" , but nobody will say what. I know they aren't to do with the build quality of the woofers it's just weird that no one will come out and say why they have such strong feelings against Si. I think it would be helpful for others to know just what is meant.

In any event, hope you enjoy what you decided on and look forward to seeing your impressions
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Old 03-04-2014, 10:02 AM
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Originally Posted by steve nn View Post

Seriously, I promise that's the last time I'll do that pic. It was a hooter the first time around though. LOL

Here you go Steve, double thumbs up!...LOL biggrin.gif

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Old 03-04-2014, 10:38 AM
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YUCK! biggrin.gif

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Old 03-04-2014, 10:44 AM
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So the SI 24 has 7.7 liters of displacement (1 way xmax) at the cost of $800 or $104/liter
The Si 18 has 2.7 liters of displacement (1way xmax) at the cost of $162 or $85/liter

I know that D4s aren't available, so think back to when they were, but for less money, why not get 3x Si18 and wire D4 in series/ then parallel them for 2.7 ohms, or even 4x and series parallel D2s for 4 ohms (which are available)
Still cheaper, more displacement, I think similar sealed volumes and less thermal compression on the VCs.

Is there something special about the 24's vs the 18s (or 15's for that matter) besides shear size (which, I'll grant you, is pretty ****ing amazing and awe inspiring lol)
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Old 03-04-2014, 10:52 AM
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Quote:
Originally Posted by Anthony_Gomez View Post

So the SI 24 has 7.7 liters of displacement (1 way xmax) at the cost of $800 or $104/liter
The Si 18 has 2.7 liters of displacement (1way xmax) at the cost of $162 or $85/liter

I know that D4s aren't available, so think back to when they were, but for less money, why not get 3x Si18 and wire D4 in series/ then parallel them for 2.7 ohms, or even 4x and series parallel D2s for 4 ohms (which are available)
Still cheaper, more displacement, I think similar sealed volumes and less thermal compression on the VCs.


Is there something special about the 24's vs the 18s (or 15's for that matter) besides shear size (which, I'll grant you, is pretty ****ing amazing and awe inspiring lol)

Aaahhhhhh.... yup! smile.gifbiggrin.gif

So yeah, they're just bigger than a smaller driver. What makes an 18" so cool? Cuz it's bigger than a 15" driver. tongue.gif More displacement from a single motor. Whether that is good or bad to you is up to..... umm..... you. wink.gif

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Old 03-04-2014, 10:58 AM
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Originally Posted by Anthony_Gomez View Post

why not get 3x Si18 and wire D4 in series/ then parallel them for 2.7 ohms,

That's the way I went but wired for less power. Dual trio of SI's wired for a 6 ohm final load. Less excursion while allowing them to motor along in my small 2,200 cf room. smile.gif

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Old 03-04-2014, 10:58 AM
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Originally Posted by Scott Simonian View Post

Aaahhhhhh.... yup! smile.gifbiggrin.gif

So yeah, they're just bigger than a smaller driver. What makes an 18" so cool? Cuz it's bigger than a 15" driver. tongue.gif More displacement from a single motor. Whether that is good or bad to you is up to..... umm..... you. wink.gif

usually, it is the case that larger drivers offer better displacement value. That doesn't seem to be the case here. The multiple 18's are better value, suffer less thermal compression, and would help with evening out room modes. I can see a 24 winning out if you want a single in a smaller cube where you don't have the baffle surface area to work with. But if you want multiple 24's or can accommodate the surface area, I don't see the point.
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Old 03-04-2014, 11:03 AM
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Originally Posted by Anthony_Gomez View Post

So the SI 24 has 7.7 liters of displacement (1 way xmax) at the cost of $800 or $104/liter
The Si 18 has 2.7 liters of displacement (1way xmax) at the cost of $162 or $85/liter

I believe Nick has said that the price is going up on the SI 24 to $1000, so soon it'll be $130/liter.
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Old 03-04-2014, 11:06 AM
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Originally Posted by Anthony_Gomez View Post

usually, it is the case that larger drivers offer better displacement value. That doesn't seem to be the case here. The multiple 18's are better value, suffer less thermal compression, and would help with evening out room modes. I can see a 24 winning out if you want a single in a smaller cube where you don't have the baffle surface area to work with. But if you want multiple 24's or can accommodate the surface area, I don't see the point.

Yup. Agreed. You aren't going to see a ton of +2 24" installs. Most DIY'ers are on a budget.

Even my crazy system represents an insane value/performance ratio. I'd even wager that it has the highest value/performance ratio to anything else on AVS.

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Old 03-04-2014, 12:17 PM - Thread Starter
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Originally Posted by Scott Simonian View Post

Yup. Agreed. You aren't going to see a ton of +2 24" installs. Most DIY'ers are on a budget.

Even my crazy system represents an insane value/performance ratio. I'd even wager that it has the highest value/performance ratio to anything else on AVS.

Is this a nice way to say you're the King of thrift? Huh , huh? tongue.gif
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Old 03-04-2014, 12:58 PM
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Lol well I am half Armenian. tongue.gif

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Old 03-04-2014, 03:33 PM - Thread Starter
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Lol well I am half Armenian. tongue.gif

Armenian? Next you'll tell me you sell trinkets? tongue.gif
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Old 03-04-2014, 03:46 PM
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Ahahaha! No.

But what a deal I have here for you, my friend. smile.gif

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Old 03-04-2014, 04:12 PM - Thread Starter
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Ahahaha! No.

But what a deal I have here for you, my friend. smile.gif

lol......

I'm not trading any of my drivers!!!!eek.gif
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