Post by: Brad Litz on May 22, 2004, 08:24:37 PM
Post questions and comments here. I'll answer as best I can and try to keep the site up to date.
http://www.geocities.com/hulkss
Post by: Rick on May 22, 2004, 11:31:08 PM
You did a beautiful A+ job of building those LAB’s
Its inspiring, that’s for sure !
Post by: Kurt Rivers on May 22, 2004, 11:33:34 PM
Post by: Brad Litz on May 23, 2004, 02:32:18 PM
http://www.geocities.com/hulkss
Post by: Timmahh on May 26, 2004, 09:55:23 PM
thanx in advance....
oh yea, where can we pick up that dandy drill jig? i seen you list in on the old forum, but not seen it since.
GR8 Job, your subs are simply beatiful..
Post by: Sound Construction on May 26, 2004, 10:15:24 PM
Post by: Timmahh on May 26, 2004, 10:30:41 PM
Post by: Brad Litz on May 26, 2004, 11:23:35 PM
| Timmahh wrote on Wed, 26 May 2004 20:55 |
Brad, Great tool, i like it much, fantastic for the cut sizes. one question? I ve not seen it show any of the angles in degrees. Am I missing them or are they not there? thanx in advance.... oh yea, where can we pick up that dandy drill jig? i seen you list in on the old forum, but not seen it since. GR8 Job, your subs are simply beatiful.. |
Just click on 2 edge angle when in measurement mode. Be careful! The angle between edges is not the same as the angle between surfaces on compound cut parts.
You can get pocket hole tools here:
http://www.kregtool.com/
Post by: Timmahh on May 27, 2004, 12:46:35 AM
Post by: Brad Litz on June 08, 2004, 01:23:18 AM
Tunes at last
http://www.geocities.com/hulkss/TheaterPhotos.html
Post by: Tim Padrick on June 09, 2004, 12:30:42 AM
Post by: raj on June 09, 2004, 01:25:47 AM
Post by: Brad Litz on June 09, 2004, 01:37:16 AM
http://www.geocities.com/hulkss/TheaterPhotos.html
Post by: Brad Litz on June 09, 2004, 01:52:42 AM
| TimmyP wrote on Tue, 08 June 2004 23:30 |
What will your new front speakers be? I've heard that the Runt is a fine sounding box, might be hard to beat at least by anything with that level of efficiency. |
SPL-TD1's would be nice
Post by: raj on June 11, 2004, 01:32:27 AM
This theatre looks real good , I hope I could have an opportunity to experiance a Demo there , unfortunately thats not possible.
At what frequency do you plan to Xover the Lab subs, the Runts seem to be having a passive Xover , what is their frequency between mid & high.
Post by: Brad Litz on June 11, 2004, 01:44:15 AM
| raj wrote on Fri, 11 June 2004 00:32 |
Hi Brad, At what frequency do you plan to Xover the Lab subs, the Runts seem to be having a passive Xover , what is their frequency between mid & high. |
I crossed over the LABsubs at 100 Hz 24 dB/oct with the runts. I do not know the passive mid/high x-over frequency inside the runts.
Post by: Mark Seaton on June 11, 2004, 12:19:09 PM
| raj wrote on Fri, 11 June 2004 00:32 |
the Runts seem to be having a passive Xover , what is their frequency between mid & high. |
Where it needs to be...
-Mark Seaton
Post by: Marty Bilecki on June 11, 2004, 02:50:36 PM
lol marty b
Post by: Phillip_Graham on June 11, 2004, 08:10:15 PM
| Martyb wrote on Fri, 11 June 2004 14:50 |
It's just a Number!!!!!!!!!!! lol marty b |
Hey Marty,
The design of crossover filters for real speakers often has very little to do with the actual acoustic response of the system. There are aften big underlaps and other bits in the response of the electrical filters to make the acoustic response come out right. Trying to nail it down to a single number is fairly simplistic, as I discovered in past times as a loudspeaker designer.
Post by: raj on June 12, 2004, 01:16:57 AM
These Runts seem to be compact and powerful,
would you recomend their use with Lab Subs in outdoor events,they would save a lot of space , I had enquired reg their Xover freq to see if they were usable here
Is there a dealer in India ?
Post by: Vince Byrne on June 12, 2004, 08:54:31 AM
| raj wrote on Sat, 12 June 2004 00:16 |
These Runts seem to be compact and powerful, would you recomend their use with Lab Subs in outdoor events,they would save a lot of space , I had enquired reg their Xover freq to see if they were usable here Is there a dealer in India ? |
Look at SPL-td1. Runts are great sounding, but td1 is much more versatile as a general purpose box.
http://www.soundphysics.com/SPL-td1.html
Since this doesn't deal with the LAB Sub but with commercial full range boxes and dealers for SPL, you might consider posting this on the Sound Physics Labs message board.
http://spl-servodrive.prosoundweb.com/
Peace,
Vince <><
Post by: raj on June 13, 2004, 02:41:16 AM
"Xover frequency of the Runt is where it should be"
this is a rather sirky remark from a person at your position , most companies mention it in the specifications of their products, any way I would like to know , as the mid and high are in the same horn , how will the results be regarding feedback problems during miking ?. Would recomend them for touring sound operators ?.
Post by: Mark Seaton on June 13, 2004, 02:43:43 PM
| raj wrote on Sun, 13 June 2004 01:41 |
Hi Mark, "Xover frequency of the Runt is where it should be" this is a rather sirky remark from a person at your position , most companies mention it in the specifications of their products, any way I would like to know , as the mid and high are in the same horn , how will the results be regarding feedback problems during miking ?. Would recomend them for touring sound operators ?. |
Hi raj,
The remark was made in a somewhat sarcastic manner as most who ask what the crossover point is are quick to make assumptions based on this very vague and non-descript specification. Also the runt is a passive-only speaker. I will have to double check with Tom Danley, but I recall the point of crossing, or point of equal output from the pair of 8" drivers and the 1", to be about 1kHz, possibly a little lower.
Just like all of our speakers employing the Unity Technology (or more formally the Unity Summation Aperture), the drivers behave acoustically as a single source through the crossover region. Since all sound exits from the same horn, the common lobes found off axis of many mulit-way boxes are eliminated. Such lobing is a common cluprit of feedback in systems, and the absence of them does indeed increase gain before feeback over a much larger range of use. I would certainly recommend the runts for use anywhere their output and coverage capabilities fit the need.
The runt is not an SPL monster. It has very significant directivity for its size, and most are very suprised as to the useful loudness of the box, especially above 80-150Hz. They work phenomenally well for smaller spaces, corporate work, front fills, and with proper aiming, even as monitors where strong bass output is not needed.
Everyone's concept of "keeping up with" is different, but if you have a good bit of power available for the subs and are using 4 or more, td1s are an optimal match with the LABsub. With 2-3 per side, and for many moderate size applications, I feel triktraps with more power on the tops than the subs is a good balance. Again, everyone has to determine how much headroom, output, and coverage they want/need. My favorite demo to is still the combo of B-DEAP-32s with runts. Proper setting of the crossover and delay makes this a setup that tends to re-set users expectations of what they really "need."
Feel free to come on over to our forum or e-mail/PM me directly if you have any further questions. At the present time we do not have a distributor for India, but will do our best to accomidate any demand.
Cheers,
Post by: Marty Bilecki on June 14, 2004, 12:49:55 AM
Post by: raj on June 16, 2004, 01:23:27 AM
I will get in touch with you ,
reg the Xover freq of the runt,s , looking at the power handling & a 1" hf driver I think it would above 2500hz lets see what Tom Danley tells us.
Cheers
Post by: Mark Seaton on June 16, 2004, 12:32:57 PM
| raj wrote on Wed, 16 June 2004 00:23 |
Thanks Mark, I will get in touch with you , reg the Xover freq of the runt,s , looking at the power handling & a 1" hf driver I think it would above 2500hz lets see what Tom Danley tells us. Cheers |
Actually I am nearly certain it is between 800-1kHz, depending on how you define it. More likely closer to 1kHz. Your presumption above is exactly why I was coy in responding. It is indeed easier with the crossover design to cross over at 2500Hz, and there are other reasons dependent on the horn being used. To keep this in perspective, remember that we do have a rather large 24" wide horn loading the 1", so gains in directivity provide plenty of output. By comparison, the SPL-td1 crosses into the 1" compression driver at 1200Hz, and we have yet to find the compression driver to hinder its output (again remembering it has a huge horn loading it). The BMS driver in the runt is a little more powerful down low than the B&C in the td1, which helps further. Every speaker has limits, and the runt isn't going to do 130dB@1m, but that was never the goal.
Cheers,