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Need advice on speaker placement, reverb issue
Old 2 weeks ago
  #1
Here for the gear
 

Need advice on speaker placement, reverb issue

Hey everybody. I am new to the forum, and I would love to get your opinion about something. I am not an audio professional, just a music and sound enthusiast, a DJ and event organiser, so excuse any ignorance and a long post ?

We are throwing a series of parties in a new space, which was a former factory. So think lots of concrete, and hard surfaces. No pillars or anything just clear space. The space itself is 27x20m total size, while the dancefloor would be about 20x20m. Height about 8m. Audience would be around 500-600 people.
So, the whole space is pretty big in volume and because of the surface materials the reverberation is pretty pronounced.

My question is, how would one approach minimizing this, as we are obviously trying to achieve the best sound possible. Going big with the soundsystem, bringing it closer to the listener, placing the speakers in a certain manner, treating or covering the surfaces (this is a bit.difficult for the venue)?

We already rented out a F1 system consisting of 4 x Evo7T and 4 x F221, and already have 2x LD Systems Dave 18 G3 (https://www.ld-systems.com/en/series...e-18-g3?c=2487) which are decent and I was thinking can be used as a reinforcement to the main F1 system.
Assuming the main system would be placed in 2 stacks on sides of the stage, would it be a good idea to place the LD system reinforcements in the back, pointing towards the stage, how would this affect the problem with the reverb for the audience on the floor?

Please, any suggestion is welcome. When doing spaces such as this, what are your tips to acheve the best sound possible with as little reflections as possible. An obvious thing would be to let a local audio specialist deal with this but where I live those are pretty scarce.

Thanks yall
Old 2 weeks ago
  #2
Lives for gear
 

bottom line is to throw energy onto the audience, avoid all reflective surfaces and add lots of absorbers (and some diffusors) - i therefore suggest you post in the acoustics/studio building forum: finding an appropriate pa is way easier than getting the acoustics of the venue right - no amout of money spent on pa and other gear can compensate for issues with the room!

i would however recommend you do not use spaced subwoofers (on both sides of the dancefloor) and even less a 'quad' kinda speaker setup...
Old 2 weeks ago
  #3
Lives for gear
 

It's pretty much certain that the space will be significantly less reverberant when you get a few hundred bodies in there. People absorb more sound than concrete walls and floors.

Anyway, acoustic treatments of the room would be very helpful, particularly to reduce as much as possible echos (as opposed to diffuse reverberation). Using speakers that direct the audio energy towards the audience with as little spill as practical towards the walls and ceilings and other directions where the audience isn't would be most helpful as well. Basically, what deedeeyeah already said...and probably said more concisely and understandably.
Old 2 weeks ago
  #4
Here for the gear
 

Thanks so much to everybody who shared their inputs, it was very helpful and many of your tips will be put to the test these two days. Acoustic treatment and proper placement of hi-mids will be crucial. Fingers crossed.

In your opinion, how faw would you place the subs stacks from the back wall, to avoid any unpleasant sound dispersion from the bass?
Old 2 weeks ago
  #5
Lives for gear
 

Quote:
Originally Posted by adhesive23 View Post
(...) how faw would you place the subs stacks from the back wall, to avoid any unpleasant sound dispersion from the bass?
much more information would be needed to make an educated guess on how to position and align subs: it may even be better to stack them against the back wall or put them in the corners - subs behave vastly different in terms of pattern than tops...
Old 2 weeks ago
  #6
Here for the gear
 

Don't trip about taming the reverb in the room. I've organized over 100 shows in the last 3 years and have dealt with all sorts of sound issues. The reality is that the money and time you spend trying to treat a room would be better spent organizing and promoting the event. Your sound system will be good, just make sure you eq the mix and experiment with the speaker placement to see what sounds best. The reality is all of the treatment in the world won't get 500 people in that room. Focus less on the sound of the room, and more on the appearance. Once people start drinking and partying and having a good time, they won't pay attention to that slight echo bouncing off of the rear wall.

If you insist on adding some treatment and need some advice on speaker/sub placement, please feel free to hit me up.

Peace & Love,
Xavier Henderson
SoulfulofNoise
Old 2 weeks ago
  #7
Lives for gear
 

Quote:
Originally Posted by djchev View Post
Don't trip about taming the reverb in the room. I've organized over 100 shows in the last 3 years and have dealt with all sorts of sound issues. The reality is that the money and time you spend trying to treat a room would be better spent organizing and promoting the event. Your sound system will be good, just make sure you eq the mix and experiment with the speaker placement to see what sounds best. The reality is all of the treatment in the world won't get 500 people in that room. Focus less on the sound of the room, and more on the appearance. Once people start drinking and partying and having a good time, they won't pay attention to that slight echo bouncing off of the rear wall.

If you insist on adding some treatment and need some advice on speaker/sub placement, please feel free to hit me up.

Peace & Love,
Xavier Henderson
SoulfulofNoise
'interesting' attitude to say the least - and pretty much what i think makes many people not come back to the club anymore! ymmv...

(some clubs invested a lot to get the acoustics and the sound system right; i'm convinced that people notice and if they have a choice, some of them will opt for good sound quality rather than shiny flyers or whatnot)
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