Re: [theatre-sound-list] Digest for theatre-sound-list@googlegroups.com - 2 updates in 1 topic

[Tim McCulloch]

<sigh>

I've been a gear pimp for 40+ years.  "Whatever ya want, just sign a 3 year contract."

The discussion of powered-in-the-box vs old school "amplifiers on the ground" is mostly academic at this point - pretty much all professional loudspeakers are competent designs, the question is do we run speaker cable or power cable up the pick?  In most use cases the results are a wash; the space we don't use for amp racks is taken by other necessities of the audio system.

IMNSHO the primary criteria for a theatrical loudspeaker system is one of linear coverage of all audience areas and appropriate support of auxiliary coverage areas; that can be voiced as needed by the designer or operating staff.  Use of products from a single manufacturer can make this easier, but is not a requirement with a good system engineer and appropriate system DSP.

I'm guessing the original post was regarding replacement of front/apron fill loudspeakers in a fixed installation.  If the house is happy with the perceived sound quality and support from EAW, ring them up and have a chat about current products in their model lines. If a suitable product must come from a different manufacturer, aside from how to integrate the new product into the venue's installed system, a question exists about the longevity of support for the remainder of the audio system and if, perhaps, it is time to look at full replacement.

Tim McCulloch

A1, IATSE L190

On Thu, May 16, 2024 at 12:05 PM <theatre-s...@googlegroups.com> wrote:

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• What speaker brands are you using? - 2 Updates

What speaker brands are you using?

Nick Kourtides <nickko...@gmail.com>: May 15 02:46PM -0400 I think modern design practices around conventionally amplified speakers have to grapple with how much passive, high-level filtering and phase correction is it reasonable to do at the speaker/crossover network in the box?   Good passive designs of the past, like EAW smaller KF and JF series, and others, relied on complex and expensive filtering components AND also significantly larger amplifiers for equivalent headroom. I would regularly drive JFs and KFs, and especially the MK installation series, with bridged amps at 1500-2000W *per driver. *     Nick Kourtides Sound Design (he/him) +1 215 915 0159 nickko...@gmail.com

jer...@jjlee.com: May 15 02:05PM -0700 I think it’s a whole different thing than the “good old days”.   Back then, any speaker tuning was done by ear (no real analysis tools) and with an analog crossover. Speakers weren’t designed to work together and sum well. People used 1/3 octave graphics on everything.   We now have real tools. The speakers can be designed to be hyper efficient. Phase and frequency response can be taken care of in DSP as well as transient response and damping factor. Voltage limiters protect the speakers.   Some companies try to be purist today (KV2) but suffer from lack of DSP. They can’t really align their drivers to create a coherent wavefront the way you can with FIR filters.   The basics remain. You need a good driver in a good cabinet with good materials.   mobile +1 347.276.9468 web www.jjlee.com email  jer...@jjlee.com

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