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I saw this review of the Rocky Mountain Audio Fest over at Secrets. Did anyone else go? Anything of interest?
I did like the line array for $18k. :rofl:
I did like the line array for $18k. :rofl:
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I posted a few pics and my impressions here....Originally posted by Spanky Ham
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson -
Missed it Thomas!
Good write up. I guess what I would like to know is there anything that was there that would influence DIY.
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Sometimes there are ideas that can be borrowed....:wink:
This time there was little..... :cry:
Several 'dipole' designs where the woofers were monopole. That makes no sense to me.
Since I'm not a vinyl fan or into horns, 50% of the show was of little interest.
I did enjoy spending time talking with Frank VanAlstine. It's not often one gets a chance to meet, and casually exchange ideas with a legend in the audio world.
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-BressonComment
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These Roger Russell "column" speakers caught my eye:
Those drivers are about $30.00 each at Madisound, and it wouldn't take very long to construct those. $19,000.00 seems pretty steep to me.
Cheers,
Davey.Comment
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I'm a BIG fan of line arrays done right, but.....
The problem here wasn't a function of the electronics. Everyother time I've heard the big Mac monoblocks they've sounded very good. So I blame this on the speakers...
The IDS by R Russel basically just sounded bad. Horrible treble, no bottom end, and mediocre midrange.
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-BressonComment
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Thomas,
There's supposed to be an equalizer that goes with those speakers. Was that not in use?
I thought the recent "update" of his design in AudioXpress was an interesting read. It was kind of funny because he appears to be caught in some kind of time warp as far as utilization of electronics. He used these ancient McIntosh EQ boxes that looked like they dated from the sixties.
Cheers,
Davey.Comment
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Davey,
I walked in, shot 2 pictures, then sat down. After a minute or so of listening I had to leave, because the treble was like fingernails on a blackboard. I didn't bother to get any specifics, I just wanted out of the room....The next day I walked by and stood in the door opening for ~30 sec, nothing had changed..
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-BressonComment
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Feel free to move this, if you prefer this discussion in the other thread.
I hate to do this to you, but Audio Federation did a monster report. It is funny that they only mention the Mac amps in that line array room.
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Which drivers are they?Those drivers are about $30.00 each at MadisoundComment
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Dennis,
The actual driver specified by Roger Russell is Vifa TG9FSD10-8 which is an obsolete shielded 8-ohm driver available only from a fella in Michigan for $68.00 each. How convenient.
A current driver is Peerless V-line TG9FD10-4 available from MAD for $29.50 each.
I ordered a couple of these awhile back to experiment with and the response is actually pretty good. EQ would still be a requirement, but a DIY version of the IDS-25 "column system" could easily be built for MUCH less than the $19,000.00 retail price.
Cheers,
Davey.Comment
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Line arrays have amazing efficiency and dynamics. The first time you hear them, you're amazed by how much a traditional 2-way compresses dynamics.Originally posted by ThomasW
Having said that, line arrays also have WILDLY erratic frequency response as you move around the room. This is because you are listening in the nearfield.
I've heard dozens of arrays, and the only ones that didn't have obvious response problems were in HUGE rooms, where you could get far away from them and let them "integrate."
Power tapering helps a lot though, and I appreciate that Griffin has written about it extensively.
IIRC, the speakers you heard to not use power tapering.
:: PB ::Comment
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