Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Anthony Lim]

How much reverb are you experiencing? clap your hand in the middle of the room and see how long it takes for the "echo" to go away.
If there's more than 1.5 sec. changing speaking is not going to do anything. Your congregation probably having a hard time hearing the speaker clearly due to the amount of reverb in the room. New speaker AND equalizer in the same spot is not going to solve the problem.

If acoustic treatment is not an option then look into getting smaller speakers to aim at the congregation so they hear more direct sound than reverb sound. You might need couple of delay boxes depends on how many rows of speakers you install.
Btw, you can add a sub too..yes, it's ok. the low frequency goes everywhere....

[Gary Creely]

Anthony Lim wrote on Tue, 09 September 2008 23:11

If there's more than 1.5 sec. changing speaking is not going to do anything.

Really? Where did you come up with 1.5 sec? I think that is a bit of an over generalization.

Anthony,

My first impression is this is a guitar center special because it is all gear they sell.As others have mentioned we can't give you super specific advice on what exactly to do, but I feel I have enough info to give some general impressions of the gear selection.

I am rather familiar with that speaker, and for a $200 speaker it is not bad. I use the JRX112m for monitors a lot on budget jobs. I would give a couple additional thoughts on speaker selection. The JRX for what it is work well, but permanently installing an entry level MI product seems like a waste. I mean you could spend as much for a lift rental as the speakers cost. If you want to use a JBL MI speaker I would suggest something like a SRX712, it would be a night and day difference in sound quality. Additionally I would skip the drive rack and go with a crown XTi or CDi amp (better amp & better DSP IMO).

[Alex Yates]

It was not my idea for use to get new speakers to start. I am very happy of the way it sounds now. The speakers that are up there are some old JBLs and I cannot figer out why we need new ones! Well I guess I need to tell yall the whole story here. We had a very organized and trained sound team at my church. If something needed to be done we always had a pro come in and do the job right. Last year our praise team leader that dose NOT know anything about sound systems came in a said that we did not know what we were doing because he did not hear his self in the monitors when he song and the projector screen was blurry! So he took over and pushed everyone out the media team by talking bad about them and how bad of a job we do on Sunday mornings. I am the only one that knew what he was doing that stayed.

He wants to get new speakers because when someone sings loud in the system the board peaks and makes a sound like one of the is blown. It’s the board not the speakers but he says I don’t know what im talking about. Also the way that the pros have the speakers hung at this time, the first few rows cannot hear as good as the back rows. This is because the speakers are over the stage and if they pull them back anymore you will have very bad feedback problems. But he said that cant happen!  

I mean idk what to do, he told me to build him a speaker system for $1500.50 and he will install them so they are done right.

[Brad Weber]

That sounds like a bad situation.  Since your Praise Leader apparently has all the answers and believes that no one else knows what they are doing, why not ask them to identify what speakers they want?  Otherwise it sounds like whatever you do may be wrong and any bad results blamed on you.  One hates to think it, but perhaps as the last holdout to their control, making it difficult on you could actually be the goal.

[Anthony Lim]

I appreciate you telling us the real situation. That's a hard place to be especially when everyone is volunteer.
Church politics is never a good thing. Sounds like you need to get some allies in the committee to help you sort out the situation.

You've mentioned that the system distort when someone sings loud, this could be a gain structure problem. Do you have a compressor on the vocals? If you're able to play tracks loud without breaking up, chances are the board was cliped. There's also a possibility that the amp is not powerfull enough so that by the time you get everything set at the right volume, the vocals comes in and there's no head room.

[Alex Yates]

Yea, Well I do know he wonts the speakers to be JBL and I know he wonts a Driverack EQ. Its my call on what to do from there. He only gave me $1500.50 to work with. Thats why I need yalls help!!!

[Alex Yates]

There is a old DOD compressor/ limiter on the system. The only time it happens when the red peak light is lit on the mixer. It dont happen much!

Back to the speakers.
The Recommended Amplifier Power for the JBL JRX115i speakers is 250 watts to 500 watts into 8 ohms. The crown XLS 202 amp bridged has the power of 600 watts at 8 ohms. So I dont understand why it would not sound good.

The reason for the driverack pa was because a new EQ was needed and also a good feedback control system is needed with our choir mics.

[Esteban Orozco]

Option 1) With $1505.50 I will hire a professional company to do an analysis on the building, and prove that the PW leader is completely incorrect. Expensive “say so” but sometimes needed. Also I don’t think for $1500 there is a set of speakers that will cover the whole area properly, especially without acoustic treatment. Sorry to say that but is the truth.

Option 2) I will take a different approach and since there is nothing wrong with the FOH sound, I will target the $1500 towards getting compressors (dbx 1046) and maybe a nice wire in ear monitor for your PW leader (Shure P2R)

The rest of the money begin a “Audio fund” for future upgrades.

[Kent Thompson]

If your clipping your board then either your gain structure is messed up or your system is underpowered.

Here are some primers on gain structure.

http://www.prosoundweb.com/studyhall/studyjump.php?pdf=basic _gain
http://www.prosoundweb.com/studyhall/studyjump.php?pdf=gain

To answer the amp size question.

http://www.prosoundweb.com/studyhall/studyjump.php?pdf=watts

I would go here first and make sure your gain structure is right. Then if that is ok you have the underpowered issue to deal with.

[Anthony Lim]

Another thing I thought of regarding vocals breaking up when singing too loud is for them to work the mic. That means when they know they're gonna sing loud on certain parts, they need to back off the mic. It takes some practice but it really helps.
I can't search youtube for examples cause it's blocked at work...

[ProSoundWeb Community]