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subwoofer questions...

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william

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Oct 23, 2003, 8:32:29 PM10/23/03
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I ran a small outdoor festival last week. Crowd area was maybe 100
feet on a side; probably 300 folks in immediate area at any one time.
Ran 2 Yorkville NX20's a side powered by 600 watts/side, over a pair
of front-loaded 18" cabinets with Emminence 600 watt drivers. Bottoms
were driven by a QCS RMX1850 bridge mode, so maybe 900 watts per
cabinet. Placed the subs together on the ground under front of the
stage.

Mixed everything from tracks for dance groups and vocalists to classic
rock bands. Had everything I needed and then some, but I never pushed
the subs. The sub amp never got above 2 1/2 the whole time. Every
time I tried, I had to turn them back down.

We were expecting to be running some new sub cabinets but had a last
minute problem and had to to settle for the single 18's. I thought
I'd have trouble outdoors getting enough bottom, but had more than
enough all nite.

Any thoughts on why I got lucky on this? I'm hoping to get into the
festival circuit and I ned all the insight I can get.

George Gleason

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Oct 24, 2003, 9:13:06 AM10/24/03
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"william" <ne...@ftc-i.net> wrote in message
news:26fddfcc.03102...@posting.google.com...

It worked beacuse you were able to place the subs correctly
together center
subs on each side would not have coupled and would have created HUGE comb
filtering effects
George


KINGCIGAR

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Oct 24, 2003, 12:24:02 PM10/24/03
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Gee guess Bob Heil was right after all.

RkeithBrown

George Gleason

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Oct 24, 2003, 1:17:15 PM10/24/03
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"KINGCIGAR" <king...@aol.com> wrote in message
news:20031024122402...@mb-m19.aol.com...

> Gee guess Bob Heil was right after all.
>
> RkeithBrown

has anyone claimed otherwise?
george


liquidator

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Oct 24, 2003, 1:32:24 PM10/24/03
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"KINGCIGAR" <king...@aol.com> wrote in message
news:20031024122402...@mb-m19.aol.com...
> Gee guess Bob Heil was right after all.
>
> RkeithBrown

Bob Heil was and still is a joke. Putting woofer boxes together so they
couple goes all the way back to the 1930"s.


KINGCIGAR

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Oct 24, 2003, 4:13:20 PM10/24/03
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His book was the first non pro level user treatise on sound reinforcment
techniques and idealogy published to that time.

His reasoned advice on being concerned with "most efficiency in the speaker
cabinets etc. when haveing only limited amplifier power" is valid still for
the majority of people that are not all out sound contractors.

Concepts, equipment, techniques used in large venue application today don't
automatically work well when they "trickle down" to smaller venues and systems.

This where too many are taught and learn falsehood and error at the
hands/pens/word processors of too many so called sound gurus.

Bob Heil didn't design/manufacture with physics and a sliderule.

But he did publish HOW to get the most out of whatever you had.

And that is worth giving him better than your saying about a man that you
couldn't hold his channel marking tape.


RKeithBrown

liquidator

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Oct 24, 2003, 5:04:13 PM10/24/03
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"KINGCIGAR" <king...@aol.com> wrote in message
news:20031024161320...@mb-m29.aol.com...

> His book was the first non pro level user treatise on sound reinforcment
> techniques and idealogy published to that time.
>
I'll grant you that, although 98% of the info in that book was available in
other texts.

> His reasoned advice on being concerned with "most efficiency in the
speaker
> cabinets etc. when haveing only limited amplifier power" is valid still
for
> the majority of people that are not all out sound contractors.
>

If you study audio texts from the 1930's this was stated- he stated it what?
40 years later?

> Bob Heil didn't design/manufacture with physics and a sliderule.

True- he just copied the JBL 40x60 radial in fiberglass instead of aluminum.

>
> But he did publish HOW to get the most out of whatever you had.

Again information that was available in other texts. He simply plagiarized
and added info he got from people who worked for him

>
> And that is worth giving him better than your saying about a man that you
> couldn't hold his channel marking tape.
>

Now you are being really ignorant. I have done sound for over twice as long
as Heil did. He still operates Heil sound- selling low-fi mikes at Ham radio
fests. He got out of Pro audio cause the competion was too stiff.

If you want to credit him with assembling info and printing it OK. But the
hero worship only shows up how much you don't know. I knew Heil and half a
dozen people who worked for him. Most of them moved on as quick as they
could.

If you really want to see what a hack he was take a look at the Ohmega amps
he built. Utter trash as was most of his gear.


liquidator

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Oct 24, 2003, 5:52:22 PM10/24/03
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"Carl Updegraff" <carl...@whatacrox.net> wrote in message
news:3f999c87...@news.west.cox.net...

> On Fri, 24 Oct 2003 21:04:13 GMT, "liquidator"
> <liqui...@collide.org> wrote:
>
> >
> >If you really want to see what a hack he was take a look at the Ohmega
amps
> >he built. Utter trash as was most of his gear.
> >
>
>
> Didn't he have a ribbon tweeter on a custom waveguide that was for pro
> use? LOOOONG before the SLS stuff...
>
> Carl
>
No- that Heil was a different guy. I remember the piece you are talking
about a friend had a couple. No connection with Bob Heil and his operation.


KINGCIGAR

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Oct 24, 2003, 9:45:03 PM10/24/03
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Has little to do with hero worship from my end.

My point was as stated that you concur with.

My statement still stands about your brogue and what it states about your
inflated sense of ego and/knowledge.

And your self serving statements about who you, what you've done and whom you
know still convict you of the type of individual you believe yourself to be.

A legend in your own mind.

RKeithBrown

liquidator

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Oct 25, 2003, 9:12:11 AM10/25/03
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"KINGCIGAR" <king...@aol.com> wrote in message
news:20031024214503...@mb-m25.aol.com...

> Has little to do with hero worship from my end.
>
> My point was as stated that you concur with.
>
Glad to see we agree on something. I'll go so far as to say the book was the
best thing Bob ever did.

> My statement still stands about your brogue and what it states about your
> inflated sense of ego and/knowledge.
>
> And your self serving statements about who you, what you've done and whom
you
> know still convict you of the type of individual you believe yourself to
be.
>

A reality check is due here. A person can't spend 35 years in pro sound
without acquiring some knowledge and meeting a few people. If you bothered
to do a google on my posts here I don't name drop on a regular basis- so
your observation is way off base. I retired last year but still keep my hand
in.

Second- you have a pretty good ego yourself-pot,kettle,black comes to mind.

> A legend in your own mind.

Nah- more like a tired old workhorse who doesn't condone jive. Life is to
short to listen to bullshit and drink cheap beer. Not necessarily in that
order.

Take a look at the equipment that bears Bob Heil's name- mixers, speakers,
power amps. Virtually all of it crap that was laughed at by the Pro guys of
the period. I bought a lot of the 40x60 fiberglass radials from Bob. Being
direct copies of JBL's they were decent. Also $75 a pop from Bob versus $180
for JBL. I told everyone they were copies made by someone I knew I wasn't
about to tell my peers they came from Heil-his reputation by the late '70's
was getting bad. He retired from Pro sound a few years later. He still
markets low fidelity Ham radio stuff.

>
> RKeithBrown

mike


KINGCIGAR

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Oct 25, 2003, 12:21:32 PM10/25/03
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Ok...I'll go with that...one old war horse to another.

RKeithBrown

Blind Joni

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Oct 25, 2003, 12:30:05 PM10/25/03
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>Glad to see we agree on something. I'll go so far as to say the book was the
>best thing Bob ever did.

I agree..back in '7x or so when I picked up his book..noone on the local club
scene had a clue about anything audio wise. The info compiled in this book gave
me a working basic knowledge that served me well and piqued my interest in live
audio.
Hero..no..helpful..absolutely.


John A. Chiara
SOS Recording Studio
Live Sound Inc.
Albany, NY
www.sosrecording.net
518-449-1637

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