titan 48 startup

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brodave2
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titan 48 startup

#1 Post by brodave2 »

not painted yet, but couldn't wait to hear it. Just one built so far. Measured with cab standing up, 1 meter in front of mouth, 12" above floor. My volt meter is questionable, but here are my readings at 2.83v.

first tests, 60hz-95db, 80hz- 100db, 100hz- 105db

found a tiny hole, 1/16" diameter going into speaker chamber, plugged it

next tests, 60hz- 100db, 80hz-105db, 100hz -110db

all measurements were made with radio shack db meter, so probably need to add 2db to the measurements under 100hz

Is it normal to lose 5db with a tiny hole like that?
I was in my living room and pretty much wrecked the place with stuff falling off tables and the tv cab and onto the floor.

ran some music through it and it sounded like there was a mule in there trying to kick his way out.

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vlad335
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#2 Post by vlad335 »

How did you find the hole?
Currently running:
Four Titan 48's, Six Omnitop 12's, Two Wedgehorn 10's, Omni12 2-10

Also Built: Omni15 Tallboy, Omni10.5.

'The hardest material on earth is the human skull'. How do we know this? Try pounding a new idea into one.

mty
Posts: 104
Joined: Sun May 27, 2007 5:02 pm

Re: titan 48 startup

#3 Post by mty »

brodave2 wrote:not painted yet, but couldn't wait to hear it. Just one built so far. Measured with cab standing up, 1 meter in front of mouth, 12" above floor. My volt meter is questionable, but here are my readings at 2.83v.

first tests, 60hz-95db, 80hz- 100db, 100hz- 105db

found a tiny hole, 1/16" diameter going into speaker chamber, plugged it

next tests, 60hz- 100db, 80hz-105db, 100hz -110db

all measurements were made with radio shack db meter, so probably need to add 2db to the measurements under 100hz

Is it normal to lose 5db with a tiny hole like that?
I was in my living room and pretty much wrecked the place with stuff falling off tables and the tv cab and onto the floor.

ran some music through it and it sounded like there was a mule in there trying to kick his way out.
Hy.. what driver was loaded the box and what wide is .thanks

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brodave2
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#4 Post by brodave2 »

24.5" wide with kappalite3015lf

I found the hole by running a 30hz sine wave to it. You can't hear the 30hz, but it sure makes the speaker work and then you can hear the hole. Fortunately the hole was easy to get at. One of those holes I used for whatever, screwed something to it during assembly, then forgot to fill it.

David Luscombe
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Joined: Thu Nov 01, 2007 8:39 pm
Location: Ayr Queensland Australia

#5 Post by David Luscombe »

hey dave (geez there is a few of us on this forum LOL)

just wodering if you have any pics and have you used these live yet.

just wodering on your thoughts

cheers david luscombe

bjhueni
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Joined: Wed Jun 27, 2007 7:56 am
Location: Portland, Oregon

Re: titan 48 startup

#6 Post by bjhueni »

brodave2 wrote:I was in my living room and pretty much wrecked the place with stuff falling off tables and the tv cab and onto the floor.
heheheheheehhehe, very similar experience in my garage. I thought the glass was going to drop out of the garage door.
One hit wonder?

I think one hit would be wonderful!

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MikeHunt77
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Location: Bristol, UK

Re: titan 48 startup

#7 Post by MikeHunt77 »

brodave2 wrote:I was in my living room and pretty much wrecked the place with stuff falling off tables and the tv cab and onto the floor.
:shock: Perhaps an army of T48's could be used for building demolition. :lol:
"You can't be a real country unless you have a beer and an airline. It helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer" - Frank Zappa

gdougherty
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#8 Post by gdougherty »

Reminds me of a small oops I made when setting the limiter for the amp. Connected a bit of speaker cable to the amp with a multimeter across it. Rank pinknoise full volume out of my DEQ2496 into the DCX2496 and adjusted the limiters on the DCX down until the multimeter dropped to an acceptable voltage reading. At this point I reasembled a speakon jack onto the speaker wire to hook back up to the subs and spaced that I'd left the pink noise running at essentially full volume (~58V into a pair of 3015LF loaded T48's wall loaded and wired in parallel. ~672W@5ohms).

The resulting brief noise on connection before I quickly disconnected them sounded like somebody had set off a bomb right next to me. My ears rang for several minutes and people kept asking what happened. This was all indoors in a room about 60'x60'. I have no desire to ever repeat that accident or run the subs at full volume indoors again.

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brodave2
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#9 Post by brodave2 »

hey dave (geez there is a few of us on this forum LOL)

just wodering if you have any pics and have you used these live yet.

just wodering on your thoughts
http://www.flickr.com/photos/7655072@N05/1514241892/

Haven't used them live yet. I do have two done now. I'm using one Friday night for a small event with one pair of omnitop 12's. I have 4 omnitop 12's and two titan 48's. That will be my "B" rig and should handle 70% of what I do, making life much easier for me, so I dont' have to load in the big rig for small events. I've let it out to a couple of bands that I'll do one free for them so I can try out the BF rig, but there's nothing going on in my world right now. I need a few gigs under my belt with them so I'll be confident with them on paying gigs.

DJ Big Ronn
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Re: titan 48 startup

#10 Post by DJ Big Ronn »

MikeHunt77 wrote:
brodave2 wrote:I was in my living room and pretty much wrecked the place with stuff falling off tables and the tv cab and onto the floor.
:shock: Perhaps an army of T48's could be used for building demolition. :lol:
I opened my Dj rack last night after a job I did last weekend for a company Christmas party. Upon looking at my gear, I noticed white particles all over the top of my equipment. Upon further inspection, it looks to be the blown on type of paint/sheet rock mud that is used on ceilings. My two T-48's, broke that stuff loose from the roof and brought it down on me. I checked the top of my lights that were on the other side of the room and they had the same thing. I hope none of the joints in the roof cracked, I'm gonna have to take out insurance on my subs :lol:

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DAVID_L_PERRY
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Re: titan 48 startup

#11 Post by DAVID_L_PERRY »

DJ Big Ronn wrote: ..I noticed white particles all over the top of my equipment. Upon further inspection, it looks to be the blown on type of paint/sheet rock mud that is used on ceilings. My two T-48's, broke that stuff loose from the roof and brought it down on me. I checked the top of my lights that were on the other side of the room and they had the same thing. I hope none of the joints in the roof cracked, I'm gonna have to take out insurance on my subs :lol:
I had exactly the same thing three weeks ago. I was stood at the desk and kept seeing little flakes of white falling onto my desk...all from the ceiling tiles from the mighty titan 48's....every kick drum hit brought more down....awesome :D

Turntablist
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Re: titan 48 startup

#12 Post by Turntablist »

DAVID_L_PERRY wrote:
DJ Big Ronn wrote: ..I noticed white particles all over the top of my equipment. Upon further inspection, it looks to be the blown on type of paint/sheet rock mud that is used on ceilings. My two T-48's, broke that stuff loose from the roof and brought it down on me. I checked the top of my lights that were on the other side of the room and they had the same thing. I hope none of the joints in the roof cracked, I'm gonna have to take out insurance on my subs :lol:
I had exactly the same thing three weeks ago. I was stood at the desk and kept seeing little flakes of white falling onto my desk...all from the ceiling tiles from the mighty titan 48's....every kick drum hit brought more down....awesome :D
I walloaded my T48's against a thin wall with a metalsheet at the other side of the wall, turned out I actually bent the metalsheet somewhat. :lol:
The roof was the same and the outer metalsheet shook like a car might do with a heavy ICE in it..... though this was a building.............. :shock:*Oops* :lol:

DJ Big Ronn
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Location: Carencro, La.

#13 Post by DJ Big Ronn »

That must have made a hell of a racket !

Turntablist
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#14 Post by Turntablist »

It sure did, on the outside! :mrgreen:

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vlad335
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#15 Post by vlad335 »

My guitar player recently relayed something to me. Seems a guy he knows came to our last gig but left his car parked at a club down the street. He said when he went to his car he could hear the kick drum loud and clear.

His car was more than a 1/2 mile away! :D

Funny, with folded horns it doesn't really seem that loud up close but it is.
Currently running:
Four Titan 48's, Six Omnitop 12's, Two Wedgehorn 10's, Omni12 2-10

Also Built: Omni15 Tallboy, Omni10.5.

'The hardest material on earth is the human skull'. How do we know this? Try pounding a new idea into one.

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