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Small Auditorium Sound, Part 2

Jun 19, 2012 11:00 AM, With Bennett Liles


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Editor’s note: For your convenience, this transcription of the podcast includes timestamps. If you are listening to the podcast and reading its accompanying transcription, you can use the timestamps to jump to any part of the audio podcast by simply dragging the slider on the podcast to the time indicated in the transcription.

Howard University’s Cramton Auditorium recently had a complete renovation and Bob Capotosto and Gene Ingham from RCI Systems handled installation of L-Acoustics speaker arrays. They’re here for part two on how the job turned out, right now on the SVC Podcast.

SVC: Bob and Gene, thanks for being back with me on the SVC Podcast on the Cramton Auditorium sound system upgrade at Howard University in Washington, DC. The job used L-Acoustics gear and we talked about the Kudo boxes in Part 1 and how you adjusted those for mid and high directivity and some rigging support had to be put in. But that wasn’t the only model of L-Acoustics gear that you used on this job. How did the system sound when you had to temporarily set up the arrays horizontally on the stage?

Bob: Yes, we did. It was quite impressive. The university staff was not familiar with the product and this was a difference they noticed immediately over the existing system. I think at one time they were talking about why did we have to fly them, it sounded so good. [Timestamp: 1:27]

Yeah, sound is such a subjective thing and you can explain and describe a system’s sound all day long but when you go in and actually hear it, there’s no substitute and you can get some surprising results when people actually listen to it. You added some 8XTi enclosures on this job, too. Now how did you use those?

Bob: Well they were primarily added as front fills and we needed to count for the curvature of the stage so we put them in three separate time domains. [Timestamp: 1:52]

OK and that’s a fairly wide stage isn’t it?

Bob: Yes it is and the beautiful thing about the XTi’s they threw all the way up to the fifth row with a impressive amount of low end for such a small speaker. [Timestamp: 2:03]

I know you have to get in there and listen and maybe make a few adjustments but as far as the bottom end you used, what was that, the SB28s?

Gene: That’s correct; it was the L-Acoustic SB28’s. [Timestamp: 2:15]

Did you have those mounted in the arrays or did you put those somewhere else?

Gene: Well we actually, we flew them right beside the arrays off stage and there were some discussion whether we should ground stack and it was considered for a while but the final decision was made to fly the subs which really worked out very well in this installation and we were able to do time alignment between the low mid’s and the subwoofers and it’s very consistent throughout the entire house. [Timestamp: 2:41]

And since it was a complete renovation and you were there from the start, I guess you didn’t have to deal with any power issues at all.

Gene: Well, power issues were taken care of through the renovation. We actually had transformer isolated power for this so we really had absolutely no noise problems at all and the system is extremely quiet so you’re not going to hear any kind of hum or buzz. [Timestamp: 3:03]



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