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Author Topic: SM80 + Th118/PG118 for techno and house music  (Read 2053 times)

Tamar Ghobria

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Re: SM80 + Th118/PG118 for techno and house music
« Reply #30 on: April 16, 2017, 02:45:45 pm »

What speakers did you use? How many people?


I was doing a large show about a month or so ago.

The local crew was REAL REAL skeptical about the use of 1 cabinet per side, when the "normal system in that room was 12-16 cabinets per side.

When we fired it up, one of the guys was at FOH and he said "WOW-I can't believe how LOUD it is, and you can still talk.  You CAN'T do that with a "XYZ (very popular brand) line array.

He was an instant believer.
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Ivan Beaver

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Re: SM80 + Th118/PG118 for techno and house music
« Reply #31 on: April 16, 2017, 05:20:02 pm »

What speakers did you use? How many people?
The main PA was a single J3-94 per side.  We used 2 SM100s for front fills.

The subs were 2 BC415s on each side and 6 PG218s in the middle.

I am not sure how many people, but the venue was an old Amory that took up a full city block.

Here is a link to a video near the back of the venue.

https://www.facebook.com/ivan.beaver/videos/1603404466355593/

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Ivan Beaver
Danley Sound Labs

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Nathan Riddle

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Re: SM80 + Th118/PG118 for techno and house music
« Reply #32 on: April 21, 2017, 11:59:33 pm »

The main PA was a single J3-94 per side.  We used 2 SM100s for front fills.

The subs were 2 BC415s on each side and 6 PG218s in the middle.

I am not sure how many people, but the venue was an old Amory that took up a full city block.

Here is a link to a video near the back of the venue.

https://www.facebook.com/ivan.beaver/videos/1603404466355593/

Not trying to threadjack, but how does one run different subs in this configuration?
Usually its frowned upon, correct?
I should probably look at the phase responses, or better yet model it lol
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Ivan Beaver

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Re: SM80 + Th118/PG118 for techno and house music
« Reply #33 on: April 22, 2017, 10:08:18 am »

Not trying to threadjack, but how does one run different subs in this configuration?
Usually its frowned upon, correct?
I should probably look at the phase responses, or better yet model it lol
Yes running different subs is "usually" a bad idea.

This is because of the different phase response.  So some freq might get louder while others will get quieter.

The BEST way is not to model them (the models only show show much and phase response of different models is not part of the model data-which is the MOST IMPORTANT part in this case), but rather to actually MEASURE them together.

That is what I did.  I put them together, measured, looked at the phase response, the delay times inside the cabinets etc.

Once I saw that they would play well together side by side (with a little delay only), then I could put that information into the model for the room.

The reason for using the different subs in this cases was simply-that is what the provider owned.

So I came up with a configuration that provided a good coverage for the space.

The actual results (the stuff that REALLY matters) was stunned looks from everybody there about how much sound there was and how clean it was.

So-once again-IT DEPENDS.  You can mix SOME subs, but you MUST do your "homework" ahead of time to be sure it will work.
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Ivan Beaver
Danley Sound Labs

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Nathan Riddle

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Re: SM80 + Th118/PG118 for techno and house music
« Reply #34 on: April 24, 2017, 01:06:48 pm »

Yes running different subs is "usually" a bad idea.

This is because of the different phase response.  So some freq might get louder while others will get quieter.

The BEST way is not to model them (the models only show show much and phase response of different models is not part of the model data-which is the MOST IMPORTANT part in this case), but rather to actually MEASURE them together.

That is what I did.  I put them together, measured, looked at the phase response, the delay times inside the cabinets etc.

Once I saw that they would play well together side by side (with a little delay only), then I could put that information into the model for the room.

The reason for using the different subs in this cases was simply-that is what the provider owned.

So I came up with a configuration that provided a good coverage for the space.

The actual results (the stuff that REALLY matters) was stunned looks from everybody there about how much sound there was and how clean it was.

So-once again-IT DEPENDS.  You can mix SOME subs, but you MUST do your "homework" ahead of time to be sure it will work.

Makes sense, though with just the BC's the spl plot is insane. I think it was 20Hz @~103db @~100ft
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