ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1] 2  All   Go Down

Author Topic: Replacement Horn Lens to narrow throw on QSC K10  (Read 9639 times)

Scott Blackwell

  • Newbie
  • *
  • Offline Offline
  • Posts: 2
  • "Trust me it's not too loud"
    • Rutherford Design- Audio / Video / Lighting
Replacement Horn Lens to narrow throw on QSC K10
« on: October 18, 2013, 03:41:11 AM »

I have a client with a small church, 150 seats, that has purchased 4 K10's and wants me to fly them for them. @ 90 x 90 it's gonna be a problem. I was looking at replacing the horn lenses to narrow the vertical and horizontal patterns to 60 x 50 so I could vertically stack the boxes.

The room is typical small Church. 45'' wide about 65'' deep in front of FOH speakers.

I was looking at this as a possible option.

http://www.usspeaker.com/Faital%20Pro%20LTH102-1.htm

Thoughts? Suggestions?

Thanks.
Logged
Scott Blackwell
Systems Specialist
Rutherford Design

Mac Kerr

  • Old enough to know better
  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 7552
  • Audio Plumber
Posting Rules
« Reply #1 on: October 18, 2013, 07:26:14 AM »

Thoughts? Suggestions?

Thanks.

Please go to your profile and change the "Name" field to your real first and last name as required by the posting rules displayed in the header at the top of the section, and in the Site Rules and Suggestions in the Forum Announcements section, and on the registration page when you registered.

Mac
Logged

Scott Blackwell

  • Newbie
  • *
  • Offline Offline
  • Posts: 2
  • "Trust me it's not too loud"
    • Rutherford Design- Audio / Video / Lighting
QSC K10 replacement horn lens to narrow vertical dispersion
« Reply #2 on: October 18, 2013, 11:53:10 PM »

I have a client who purchased 4 K10's and wants me to install them at his church. 45' wide 65' deep in front of pic points. I was looking at replacing the horn lens and vertically stacking the boxes with the top box upside down, however the 90 x 90 will be an issue. I am looking at these

http://www.usspeaker.com/Faital%20Pro%20LTH102-1.htm

Thoughts?

Logged
Scott Blackwell
Systems Specialist
Rutherford Design

Tim McCulloch

  • SR Forums
  • Hero Member
  • *
  • Offline Offline
  • Posts: 23743
  • Wichita, Kansas USA
Re: QSC K10 replacement horn lens to narrow vertical dispersion
« Reply #3 on: October 19, 2013, 01:22:35 AM »

What does QSC say?
Logged
"If you're passing on your way, from Palm Springs to L.A., Give a wave to good ol' Dave, Say hello to progress and goodbye to the Moonlight Motor Inn." - Steve Spurgin, Moonlight Motor Inn

Tim Perry

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1251
  • Utica-Rome NY
Re: QSC K10 replacement horn lens to narrow vertical dispersion
« Reply #4 on: October 19, 2013, 02:57:00 AM »

I have a client who purchased 4 K10's and wants me to install them at his church. 45' wide 65' deep in front of pic points. I was looking at replacing the horn lens and vertically stacking the boxes with the top box upside down, however the 90 x 90 will be an issue. I am looking at these

http://www.usspeaker.com/Faital%20Pro%20LTH102-1.htm

Thoughts?

Don't be silly.  Just put up one per side and use the other 2 for floor monitors
« Last Edit: October 19, 2013, 10:46:03 AM by Tim Perry »
Logged

Tom Young

  • Global Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 620
Re: Replacement Horn Lens to narrow throw on QSC K10
« Reply #5 on: October 19, 2013, 08:04:02 AM »

I was looking at replacing the horn lenses to narrow the vertical and horizontal patterns to 60 x 50 so I could vertically stack the boxes.

If you change the horn you also change the cubic volume that the woofer sees, the frequency response of the HF driver, the acoustic output of the HF driver and the alignment between woofer and HF driver.

What do you end up with ? Who knows.

Not a good idea.
Logged
Tom Young
Electroacoustic Design Services
Oxford CT
203-888-6217

Tim Perry

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1251
  • Utica-Rome NY
Re: QSC K10 replacement horn lens to narrow vertical dispersion
« Reply #6 on: October 19, 2013, 10:48:30 AM »

Don't be silly.  Just put up one per side and use the other 2 for floor monitors

...or rig it as a dual PA... 2 for vocals 2 for instruments. 

Logged

Ivan Beaver

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 9534
  • Atlanta GA
Re: Replacement Horn Lens to narrow throw on QSC K10
« Reply #7 on: October 19, 2013, 10:49:16 AM »

I have a client with a small church, 150 seats, that has purchased 4 K10's and wants me to fly them for them. @ 90 x 90 it's gonna be a problem. I was looking at replacing the horn lenses to narrow the vertical and horizontal patterns to 60 x 50 so I could vertically stack the boxes.

The room is typical small Church. 45'' wide about 65'' deep in front of FOH speakers.

I was looking at this as a possible option.

http://www.usspeaker.com/Faital%20Pro%20LTH102-1.htm

Thoughts? Suggestions?

Thanks.
You may not end up with what you think for the following reasons.

1: have you looked at the polar patterns of the horn you are suggesting?  It is only 50 vertical down to around 8Khz ish. So you only get the "control" in the top octave or so.  Is that really doing any good?

2: When you use a narrower pattern horn of the same size-the freq to which it has control goes UP-so there us usually LESS pattern control-especially where you need it.

3: Remember that when you get below the point to which the horn has control the pattern actually FLIPS-so it is opposite of what you "think" it is.

4: As Tom said-when you put a different horn on a driver all sorts of things are going to change.  The actual loading on the driver-which means the impedance is going to change-so the output and freq response is going to change.  Assuming there is delay to match up the woofer and HF driver-that is going to change due to the HF driver being in a different location.  This will cause a notch in the response you will not be able to fix.

I am not saying it won't work-but in reality it is most likely not going to do what you think it is-or want it to.

But as with so may things audio if you "think" it made a difference-then it probably did-at least in your mind.   

But measurements would prove otherwise.

But the REAL question is WHY did the customer buy speakers that won't do the job and have to be modified.  Overall it would have been much better to get a PROPER loudspeaker for the job-not something that a salesman talked them into.

But it happens all the time.  No wonder our industry is in such a  mess with bad sound systems all over the place.
Logged
A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Mike Pyle

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1217
  • Santa Rosa, CA
Re: Replacement Horn Lens to narrow throw on QSC K10
« Reply #8 on: October 19, 2013, 12:50:40 PM »

The K10 horn is molded into the front half of the cabinet. For that reason and others mentioned it would be best to sell the K10s if they won't work and buy something that will.
Logged
Mike Pyle  Audiopyle Sound  707-315-6204
Dealer For: JBL, Soundcraft, Crown, dbx, AKG, Yorkville, EV, QSC, RCF, FBT, Danley Sound Labs, Meyer Sound, Fulcrum Acoustic, Tannoy, Lab Gruppen, Powersoft, Linea Research, EAW, Allen & Heath, Ashly, APB, Audix, One Systems, Presonus, K&M, Ultimate, Global Truss, Intellistage, SKB, Gator, Radial Engineering, Turbosound, Midas, dB Technologies, American DJ, Odyssey, ProCo, Rapco, CBI, Elation, Mipro, Chauvet, Blizzard, Shure, Whirlwind, Bassboss, Yamaha, Line 6, Behringer, On-Stage, more...

Mike Sullivan

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 394
Re: Replacement Horn Lens to narrow throw on QSC K10
« Reply #9 on: October 19, 2013, 01:37:46 PM »

I have a client with a small church, 150 seats, that has purchased 4 K10's and wants me to fly them for them. @ 90 x 90 it's gonna be a problem. I was looking at replacing the horn lenses to narrow the vertical and horizontal patterns to 60 x 50 so I could vertically stack the boxes.

The room is typical small Church. 45'' wide about 65'' deep in front of FOH speakers.

I was looking at this as a possible option.

http://www.usspeaker.com/Faital%20Pro%20LTH102-1.htm

Thoughts? Suggestions?

Thanks.

That is one tiny church! :P

I agree with above, either only use two (that would be all you need)
Logged
When you're reading a topic, and the word "Danley" comes up...RUN!!!

ProSoundWeb Community

Re: Replacement Horn Lens to narrow throw on QSC K10
« Reply #9 on: October 19, 2013, 01:37:46 PM »


Pages: [1] 2  All   Go Up
 



Site Hosted By Ashdown Technologies, Inc.

Page created in 0.094 seconds with 24 queries.