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Author Topic: danley th115 and th118 used togrther  (Read 5751 times)

Kim Clark

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danley th115 and th118 used togrther
« on: October 01, 2012, 09:31:25 PM »

anybody out there using th115 and th118 together ? any advantages in combing the two ?
Thanks  Kim
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Ivan Beaver

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Re: danley th115 and th118 used togrther
« Reply #1 on: October 01, 2012, 09:48:28 PM »

anybody out there using th115 and th118 together ? any advantages in combing the two ?
Thanks  Kim
There is no real advantage to using them both.

But on the other hand-(unlike many subs) there is no disadvantage.

They have (for all practical purposes) have the exact same phase response-so they "play well" together.  Same physical size and the interlocking skids keep them from sliding around.

A possible disadvantage would be if they were both getting the same signal.  The TH115 would "run out of gas" while the TH118 is just getting going.  So different amp sizes would be ideal-which would mean that if set up properly-the TH118 would be louder-for a couple of reasons.

First the TH118 has a higher sensitivity and with more power going to it-it would be close to 6dB louder.

I would suggest using the same HP and LP filters-so the phase response would stay the same going to both cabinets.
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Ivan Beaver
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Eric D Hite

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Re: danley th115 and th118 used togrther
« Reply #2 on: December 04, 2012, 08:49:40 PM »

anybody out there using th115 and th118 together ? any advantages in combing the two ?
Thanks  Kim

Well my comment would be it will probly work fine, but I would adjust them so they produce the same spl..If one box is louder than the other the the difference in pressure can "steer" the sound wave.  Now this might be something you want or need, and then it might make things worse depending on your setup.  Although I have never used those particular subs i have used some of the LABhorns.. But my personal preferance is to use the same subs all the way across, unless there is some good reason not to.
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Eric D. Hite
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Ivan Beaver

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Re: danley th115 and th118 used togrther
« Reply #3 on: December 04, 2012, 09:26:11 PM »

Well my comment would be it will probly work fine, but I would adjust them so they produce the same spl..If one box is louder than the other the the difference in pressure can "steer" the sound wave.  Now this might be something you want or need, and then it might make things worse depending on your setup.  Although I have never used those particular subs i have used some of the LABhorns.. But my personal preferance is to use the same subs all the way across, unless there is some good reason not to.
I would not run them at the same SPL level.  If you do, the TH118 would be nowhere near its maximum output at the point the TH115 would be at its' maximum.  So in essence the TH115 would be "working harder".  And the maximum output of the whole rig would be less (limited by the TH115).

If they were run at the same "potential", then they would both be working less hard-for the same SPL from the rig-as if they were run at the same SPL.

Unless you are running a large number of them in some unconventional manner, there will be very little steering.  As a general rule "steering" is done by adjusting signal delays.  Just because one cabinet is louder than another does not mean the sound is "steered"-except that it is louder in front of that cabinet.

The Tapped horn is a very different design than the Lab sub-which is a conventional bass horn-albeit it with a different approach to the drivers.  But that has nothing to do with the cabinets could be run together.

The phase response between the 2 cabinets is identical-so mixing and matching is not going to be an issue. 

Where you run into problems is using subs that have a different phase response-and the cancellations that occur because of that.
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Frederik RosenkjŠr

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Re: danley th115 and th118 used togrther
« Reply #4 on: December 05, 2012, 07:26:12 AM »

For what it's worth my own both tests and in the field experience shows that the TH-212 also is very close to the TH-118 in phase up to at least 100 Hz (single digit (degrees) difference all the way except from 70 to 80 Hz where it briefly climbs to about 30 degrees - still should sum alright.

Also in practice I've found no problem combining these two models. It just gets louder at all frequencies quite evenly.
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DanielRobin

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Re: danley th115 and th118 used togrther
« Reply #5 on: January 27, 2013, 02:51:17 AM »

I almost bought a pair of TH115's myself but opted for the EV QRX218s instead.
The TH115 cost approx. $2500.00/ea., but from everything I have read on them they seem like a worth while investment. When I made my decision not to buy them it was because the QRX218 suited my needs better.
I would still like to get a pair someday!

Paul Huss

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Re: danley th115 and th118 used togrther
« Reply #6 on: September 07, 2021, 12:19:52 AM »

There is no real advantage to using them both.

But on the other hand-(unlike many subs) there is no disadvantage.

They have (for all practical purposes) have the exact same phase response-so they "play well" together.  Same physical size and the interlocking skids keep them from sliding around.

A possible disadvantage would be if they were both getting the same signal.  The TH115 would "run out of gas" while the TH118 is just getting going.  So different amp sizes would be ideal-which would mean that if set up properly-the TH118 would be louder-for a couple of reasons.

First the TH118 has a higher sensitivity and with more power going to it-it would be close to 6dB louder.

I would suggest using the same HP and LP filters-so the phase response would stay the same going to both cabinets.



Hi Ivan,

First time Danley owner here. Just ordered a pair of SM60Fs, 2 TH115s, and a DNA 20k4 amp. I just wanted to revisit this thread as I’m potentially in the market for 2 more subwoofers, but I’m waiting to get my system going first before making any more decisions.

One reason I believe I may want more subs is that I have a friend who owns 2 TH118XLs and SM60Fs and he occasionally hits the limit of the subs. We enjoy listening to just about every type of music, and this includes bass heavy electronic / engineered music that occasionally ventures into sub 30hz territory.

I decided upon the TH115 after hearing a side by side demo with the TH118XL. Everyone agreed the TH115 sounded brighter and more musical. However, I could detect a difference in the intensity of a kick drum in an edm song, and I’m guessing that extra thump is due to the TH118XLs increased capabilities around 30hz.

Now getting back to your post, I’m curious as to whether there actually could be advantages to mixing tapped horns. On the spec sheets the TH115 has a listed sensitivity of 106db while the TH118 has a sensitivity of 105db, but I understand that the TH118 has higher power handling so I don’t doubt it can get almost 6db louder than the TH115. It makes sense that a rig of TH118s would have more output, but would it be more efficient?

Looking at the freq vs SPL chart, it appears the TH115 is louder for the most part over ~38hz, while the 118&XL is louder below that. I understand the TH118 can handle more power, which helps the low freq extension, but wouldn’t the TH115 be more efficient in the freq range above 38hz up to its peak power limit? The way I read the charts, at 40hz a TH115 will get louder than a TH118 when driven by the same amount of power, so it can take less power to achieve a certain SPL... I am relatively inexperienced in the world of amplified sound and subsequently I do not yet have a complete grasp on all of the ideas, so if my questions are fundamentally flawed I would be happy if you set the record straight.

But assuming that I am reading the specs correctly, could I then assume that there are efficiencies gained by mixing different tapped horns? For example, just assuming I had 1 TH115 and 1 TH118XL, couldn’t this combination go to 30hz at a certain SPL (let’s say 100db) more efficiently than 2 TH115s? And if that’s true, wouldn’t the combination also perform more efficiently above 38hz at a certain SPL than a pair of TH118XLs?

Basically, if I’m looking to achieve a certain loudness across the low end and want to do it in the most efficient manner with 4 subwoofers and 1 amp, would there be an advantage to mixing the TH115 & TH118XL(assuming the phase response is identical like you mentioned the 115&118 are)?


-Paul
« Last Edit: September 07, 2021, 12:40:36 AM by Whatsthephuss »
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Mac Kerr

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« Reply #7 on: September 07, 2021, 07:23:14 AM »



Hi Ivan,


-Paul

Please go to your profile and change your name to your real full name as required by the posting rules.

Mac
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┬ź Reply #7 on: September 07, 2021, 07:23:14 AM ┬╗


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