Stereo Integrity HT-18 v2 18" available again May-23-2017 - Page 2 - AVS Forum | Home Theater Discussions And Reviews
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post #31 of 153 Old 05-05-2017, 10:05 AM
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Originally Posted by brian6751 View Post
Nick,

I think you should really consider a dual 4Ohm version. You could run 4 of them off one iNuke 3000dsp. That combo would make these the default bass per dollar champ IMO.
I think you have your math mixed up as you can run 4 of the dual 2 ohm drivers of a 3000DSP unless you meant to say the iNuke 6000DSP?
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post #32 of 153 Old 05-05-2017, 10:10 AM
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What exactly is the difference between these and the D4 version? I bought one of the D4s about a year ago with plans of (eventually) adding another for nearfield. When I get around to it, would mixing them be ok? Should I stick with another D4? What is different in terms of sound/power?
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post #33 of 153 Old 05-05-2017, 10:12 AM
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Originally Posted by mtg90 View Post
I think you have your math mixed up as you can run 4 of the dual 2 ohm drivers of a 3000DSP unless you meant to say the iNuke 6000DSP?

Yeah. Definitely should be a single 6000 to power up to four of these rather decently.

Big fan of d4 drivers but I can see your reason to hold out on offering them right now, Nick.

But if you do, Nick, Omg be careful!!! If the Qes/Qts is even a pinch higher than the d2's there will be hell to pay from all the arm-chair simmers. Find a rock and hide under it!
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post #34 of 153 Old 05-05-2017, 10:14 AM
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Originally Posted by Sockfoot View Post
What exactly is the difference between these and the D4 version? I bought one of the D4s about a year ago with plans of (eventually) adding another for nearfield. When I get around to it, would mixing them be ok? Should I stick with another D4? What is different in terms of sound/power?
The difference is the load each driver presents to an amplifier.

A d2 has dual 2ohm voicecoils. A d4 has dual 4ohm voicecoils. This allows flexibility wiring wiring one or more drivers to a particular amplifier.

It has nothing to do with sound/power or one being "better" than another.
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post #35 of 153 Old 05-05-2017, 10:16 AM
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Originally Posted by Scott Simonian View Post
The difference is the load each driver presents to an amplifier.

A d2 has dual 2ohm voicecoils. A d4 has dual 4ohm voicecoils. This allows flexibility wiring wiring one or more drivers to a particular amplifier.

It has nothing to do with sound/power or one being "better" than another.
Have a iNuke6000 that I planned on using to push both D4s. I assume that would still suffice if I ended up going with this version as my 2nd? Or should I wait and see on a D4?
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post #36 of 153 Old 05-05-2017, 10:17 AM
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Originally Posted by Scott Simonian View Post
Yeah. Definitely should be a single 6000 to power up to four of these rather decently.

Big fan of d4 drivers but I can see your reason to hold out on offering them right now, Nick.

But if you do, Nick, Omg be careful!!! If the Qes/Qts is even a pinch higher than the d2's there will be hell to pay from all the arm-chair simmers. Find a rock and hide under it!
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Originally Posted by mtg90 View Post
I think you have your math mixed up as you can run 4 of the dual 2 ohm drivers of a 3000DSP unless you meant to say the iNuke 6000DSP?
Yep. 6000dsp. Sorry. I fixed it

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post #37 of 153 Old 05-05-2017, 10:25 AM
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Originally Posted by Sockfoot View Post
Have a iNuke6000 that I planned on using to push both D4s. I assume that would still suffice if I ended up going with this version as my 2nd? Or should I wait and see on a D4?
I would put 2 D4 (series parallel) to present a 4ohm load to one side of the 6k DSP or to a 3k bridged. The difference is that the 3k can handle 2ohm loads on each channel but it cannot handle 2ohms when bridged. The 6k DSP is two channels with each channel being a bridged 3k. Thus the 6k cannot do a 2ohm load on either channel, nor is it bridgeable...but you get the power of a bridged 3k in each channel.
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post #38 of 153 Old 05-05-2017, 10:28 AM
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Originally Posted by Sockfoot View Post
Have a iNuke6000 that I planned on using to push both D4s. I assume that would still suffice if I ended up going with this version as my 2nd? Or should I wait and see on a D4?
That's up to you. You could power a single HT18 per channel. You would have plenty of power on hand beyond what the driver needs which isn't a bad thing.

However, you could power TWO HT18's per channel.... if you wanted to.

So wait and see if he even offers a d4 or you could get different amp or 2nd 6k.

Plenty of choices!
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post #39 of 153 Old 05-05-2017, 10:42 AM
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question...................

i currently have 2 dayton 18 HO's in sealed enclosures up front...I may have room for one of these HT18's beside my couch in a sealed box, but i wont have room on the other side...would it be a bad idea only getting one of these and then running 3 subs?? I do have a relatively small room 11 X 14.

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post #40 of 153 Old 05-05-2017, 10:47 AM
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Originally Posted by chadsmith013 View Post
question...................

i currently have 2 dayton 18 HO's in sealed enclosures up front...I may have room for one of these HT18's beside my couch in a sealed box, but i wont have room on the other side...would it be a bad idea only getting one of these and then running 3 subs?? I do have a relatively small room 11 X 14.

It wouldn't be "bad" at all. You could definitely do that, if you want. You just might need an additional amplifier channel to power a single, isolated sub off on it's own.



Question........

Why not get TWO more to add to your dual RS18's? Stack em!





Hey.... I'm just doing my job, People.
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post #41 of 153 Old 05-05-2017, 10:57 AM
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Originally Posted by Scott Simonian View Post
It wouldn't be "bad" at all. You could definitely do that, if you want. You just might need an additional amplifier channel to power a single, isolated sub off on it's own.



Question........

Why not get TWO more to add to your dual RS18's? Stack em!





Hey.... I'm just doing my job, People.
great idea in theory, but it would block my projector screen...i have my subs now under my screen up into the sides of the screen..not enough room to slide them over...just wasnt sure if having 3 subs breaks some cardinal sin or something.

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post #42 of 153 Old 05-05-2017, 10:58 AM
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Quote:
Originally Posted by Scott Simonian View Post
The difference is the load each driver presents to an amplifier.

A d2 has dual 2ohm voicecoils. A d4 has dual 4ohm voicecoils. This allows flexibility wiring wiring one or more drivers to a particular amplifier.

It has nothing to do with sound/power or one being "better" than another.
It does change mms (and thus fs), le, re, bl. Wasn't there some drama about the differences on the previous batch?
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post #43 of 153 Old 05-05-2017, 10:59 AM
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I see two rather subwoofer sized gaps between the other subs and that center channel.

Can't pull a fast one like that on me, Mister!
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post #44 of 153 Old 05-05-2017, 11:02 AM
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It does change mms (and thus fs), le, re, bl. Wasn't there some drama about the differences on the previous batch?

Dude. The guy asked about the difference between a d2 and a d4. That's all I'm going to help him get answered.

I'm not going to get all literal on the guy about what can change from one system to another. It would just confuse.

Yes, there was drama. Drama hashed up mostly by people who don't understand that T/S can change when you drastically alter the impedance of a system without changing the motor. That isn't the discussion I'm trying to have with the poster I replied to. That is an entirely different discussion. That is also a cause/effect that is applicable to every driver on the planet and not solely an SI-related phenomenon.

Now how a manufacturer handles this information is also another discussion.
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post #45 of 153 Old 05-05-2017, 11:04 AM
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Originally Posted by Scott Simonian View Post
I see two rather subwoofer sized gaps between the other subs and that center channel.

Can't pull a fast one like that on me, Mister!
lol..busted...

ok ok..but i kinda want some nearfield action though....

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post #46 of 153 Old 05-05-2017, 11:06 AM
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If that is the case then I do NOT recommend just one sub off to the side.

It wouldn't feel right.

Can you have it behind the couch? Can you build a subwoofer riser? Can you afford (or want) Crowson or Buttkickers?
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post #47 of 153 Old 05-05-2017, 11:06 AM
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Originally Posted by Scott Simonian View Post
Dude. The guy asked about the difference between a d2 and a d4. That's all I'm going to help him get answered.

I'm not going to get all literal on the guy about what can change from one system to another. It would just confuse.

Yes, there was drama. Drama hashed up mostly by people who don't understand that T/S can change when you drastically alter the impedance of a system without changing the motor. That isn't the discussion I'm trying to have with the poster I replied to. That is an entirely different discussion. That is also a cause/effect that is applicable to every driver on the planet and not solely an SI-related phenomenon.

Now how a manufacturer handles this information is also another discussion.
Wasn't trying to call out what you said or anything, was just mentioning it since there was fallout previously. I know you know the deal when changing coils.

Last edited by notnyt; 05-05-2017 at 11:10 AM.
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post #48 of 153 Old 05-05-2017, 11:10 AM
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Wasn't trying to call out what you said or anything, was just mentioning it since there was fallout previously.
Thanks but I don't see how that is of any help for the question at hand.

The "fallout" unfortunately was a mix of several things that could have been avoided.

But I do agree with you in spirit that it is important to understand the T/S of any driver you intend to you and what do with with it appropriately. Sorry if my reply came off as combative. Figured teh wink at the end could further detail my "tone". But I guess not.
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post #49 of 153 Old 05-05-2017, 11:14 AM
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Thanks but I don't see how that is of any help for the question at hand.
Someone asked "what exactly is the difference", figured it might be worth mentioning they're not going to be identical.

It's nice to see a big cheap woofer option again....

inb4 this degrades to lossy inductance debate?
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post #50 of 153 Old 05-05-2017, 11:17 AM
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If that is the case then I do NOT recommend just one sub off to the side.

It wouldn't feel right.

Can you have it behind the couch? Can you build a subwoofer riser? Can you afford (or want) Crowson or Buttkickers?
would it help if it were just my side of the couch?? the wife could care less if her side shakes..LOL..

cant do anything behind the couch..its backed against the wall..havent really invested too much research into the crowsons....wifey did say if i get 2 of these 18's..im cut off for a long time..

Receiver : Denon x2300
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post #51 of 153 Old 05-05-2017, 11:19 AM
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Haha! Okay, you got me there.


Ugh, yeah. Please no. Those "talks" gets plenty boring too.

Yes! I'm so happy that the HT18's are back!
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post #52 of 153 Old 05-05-2017, 11:21 AM
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would it help if it were just my side of the couch?? the wife could care less if her side shakes..LOL..

cant do anything behind the couch..its backed against the wall..havent really invested too much research into the crowsons....wifey did say if i get 2 of these 18's..im cut off for a long time..

She might enjoy the Crowsons. Think of it as a present for both of you.



Not sure about the single nearfield. It's up to you. Worth a shot but I'd imagine it would feel like the bass was coming from the side. That just seems like more distracting than fun.

But a cross-eyed wifey sounds like more fun!
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post #53 of 153 Old 05-05-2017, 11:23 AM
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She might enjoy the Crowsons. Think of it as a present for both of you.



Not sure about the single nearfield. It's up to you. Worth a shot but I'd imagine it would feel like the bass was coming from the side. That just seems like more distracting than fun.

But a cross-eyed wifey sounds like more fun!
lol i could picture it now....hmm..decisions decisions..

Receiver : Denon x2300
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post #54 of 153 Old 05-05-2017, 11:34 AM
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would it help if it were just my side of the couch?? the wife could care less if her side shakes..LOL..

cant do anything behind the couch..its backed against the wall..havent really invested too much research into the crowsons....wifey did say if i get 2 of these 18's..im cut off for a long time..

Withholding sex is grounds for divorce in 49 of the 50 states. It is emotional abuse. Get out fast! Go to a shelter if need be.


http://www.huffingtonpost.com/tiffan...b_9863264.html
http://divorcesupport.about.com/od/a...olding-Sex.htm

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post #55 of 153 Old 05-05-2017, 11:40 AM
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Withholding sex is grounds for divorce in 49 of the 50 states. It is emotional abuse. Get out fast! Go to a shelter if need be.


http://www.huffingtonpost.com/tiffan...b_9863264.html
http://divorcesupport.about.com/od/a...olding-Sex.htm
not that kind of cut off..lol..im cut off from any more spending..
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Will the HT18v2 work in the same sealed enclosure that the DS4/UM18 from DIYSG/PE does? It looks like it (4cuft)! How would two of these sealed with an iN3k model? And how would that compare with something almost twice the price with 2xUM18's sealed with an iN6k?

I'm curious to see what double the cost does (or doesn't!) get you...
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post #57 of 153 Old 05-05-2017, 06:56 PM
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Will the 18DS4 ever come back?

Just curious and I assume no but I really liked the specs on that driver. Either way I am sure we will be sing a surplus of spending on the new18's in quantities of four.
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post #58 of 153 Old 05-06-2017, 09:44 AM
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Quote:
Originally Posted by Scott Simonian View Post
Yes, there was drama. Drama hashed up mostly by people who don't understand that T/S can change when you drastically alter the impedance of a system without changing the motor. That isn't the discussion I'm trying to have with the poster I replied to. That is an entirely different discussion. That is also a cause/effect that is applicable to every driver on the planet and not solely an SI-related phenomenon.

Now how a manufacturer handles this information is also another discussion.
I wasn't really aware of the D4 drama until after it was over but IIRC the drama was based on the D4 t/s never being published. Even recently when people were requesting the D4 t/s in the open forum here, long after having being discontinued, SI refused to publish the t/s on the forum, although he said he would provide them by email. This is just odd and a good cause for drama. The fact that the t/s were different for the D2 and D4 wasn't the source of the drama, the lack of published specs for one of them was the problem.

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inb4 this degrades to lossy inductance debate?
What's to debate? Normalized inductance is low so lossy inductance effects will be moderate. This driver should fare pretty well as far as lossy inductance goes, as it's predecessor did.

Not sure what this comment is actually saying though - I'm the only one that talks about lossy inductance as far as I'm aware so this appears to be addressing me. If my data or comments on lossy inductance have offended you please PM me as I'd like to clear that up.
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post #59 of 153 Old 05-06-2017, 10:36 AM
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Will the HT18v2 work in the same sealed enclosure that the DS4/UM18 from DIYSG/PE does? It looks like it (4cuft)! How would two of these sealed with an iN3k model? And how would that compare with something almost twice the price with 2xUM18's sealed with an iN6k?

I'm curious to see what double the cost does (or doesn't!) get you...
I too am very curious about this exact question.
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post #60 of 153 Old 05-06-2017, 11:45 AM
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Will the HT18v2 work in the same sealed enclosure that the DS4/UM18 from DIYSG/PE does? It looks like it (4cuft)! How would two of these sealed with an iN3k model? And how would that compare with something almost twice the price with 2xUM18's sealed with an iN6k?

I'm curious to see what double the cost does (or doesn't!) get you...
The V2 is actually closer to ideal in a 4cuft box than a UM18. Qtc for a UM18 in 4cuft is about .890 (it "prefers" about 10cuft) where Qtc for a V2 is .798. In your scenario, a UM18 with a 6000 will have about a 4dB advantage below 50hz. One should note the 3000 won't fully power the two V2 where the 6000 will fully power 2 UM18s. Using a 6000 with the V2 (but not going over the 600w PE) tightens it up but the UM18 still have roughly a 2.5dB advantage.

So with the V2 you have $300 for drivers, $230 for the amp (assuming the non-DSP version) and ~$300 for the boxes (shipped) so ~900 built, the UM/6000 setup will be ~1300 built. So about $400 for ~4dB. If you use the 6000 with the V2 drivers it drops to about $300 difference for a 2.5dB advantage.
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