SWL Posted November 12, 2015 Author Share Posted November 12, 2015 I should not have thread Crapped. No problem at all. 1 Quote Link to comment Share on other sites More sharing options...
Rowan611 Posted November 12, 2015 Share Posted November 12, 2015 That's a lot of power for a THT. I know it's not needed but I already had two of these amps handy. They're working out very well.Can't beat that reason [emoji3] Sent from my HTC One_M8 using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted November 12, 2015 Share Posted November 12, 2015 You are wrong in that it is too short of a time for the Human brain to perceive Which tapped horn subs have you been listening to Rog? Carl, Not listening to any subs yet, subs are theory only at this point. I have heard as stated with the Klipsch horn though, and like I said, ignorance is bliss. It is just like when we were listening to the Paladiums and thought they sounded good, but in switching immediately to the Klipshorns, you could see what we were missing. The smearing of sound occurs at the point where the frequencies overlap. The music changes a frequency in that range and for miliseconds the longer, lower frequency horn is arriving at your ears with the end of the last frequency in that over lap while the shorter horn has already arrived at your ear with the new frequency information. The two separate signals arriving at your ears at the samr time causes an audible muddiness for a better lack of a term, and as you know, I have been pondering to do something major in the way of a horn built sub to replace my six 18 inch direct radiators. So in thinking about what I heard with the Klipschorn, it got me to thinking about Roy giving out the time delay numbers between the Jube Bass Bin and the 402, and then I got to thinking about the Gjauler Horn and tapped horns in general at it dawned on me that this type of sub has this exact problem with time differences and emitting two separate signals at the same moment inherently designed into it. I still want to build something killer in the Horn Sub realm, but it will have to wait on finances. Guy backed out into my daughters car and I need to come up with cash to fly to hope in April, all cash needed to enjoy Hope, and I'm thinking about an extra $1,500 or more is about what I will need to rent a big U-Haul from Hope back to Ohio. If I can swing it, Kevin will be bringing my 20 KP-600 boxes to Hope with the rest of his gear I worked all night last night and I am heading to bed. I am going to run this by Roy when I get up later and get the gospel on it Rog 1 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted November 12, 2015 Share Posted November 12, 2015 subs are theory only at this point. All your thoughts and theories seem to make sense at this point. I can't believe I said that Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted November 12, 2015 Share Posted November 12, 2015 subs are theory only at this point. All your thoughts and theories seem to make sense at this point. I can't believe I said that You are scaring me dude! Rog 1 Quote Link to comment Share on other sites More sharing options...
SWL Posted November 18, 2015 Author Share Posted November 18, 2015 Got rained out yesterday and today.....the more I listen to these Tuba subs the more I respect them. No disrespect to the direct radiators I've had in the past because I really liked them but in my particular room I can cut off the Tuba so much higher (90-100hz) compared to only 40-50hz with the direct radiators....therefore enhancing more of the bass frequencies. My particular Tubas...THTLP and the TTLS...don't dig very deep. My ear....and the tones I've run through the Tubas.... is telling me that they don't go much deeper than my 30's (36hz). They only get significant tones down to just under 32hz. However, music is all I listen to this is where they really shine. They don't draw any attention to themselves and integrate so seamlessly into the music. This....in my experience...is where they have the edge. Very, very musical subs. No boom. No rumble. Quote Link to comment Share on other sites More sharing options...
jason str Posted November 18, 2015 Share Posted November 18, 2015 Maybe a high pass filter on your amp ? The TT should hit 25Hz & THT 20Hz even in larger rooms. My 1 1/2 car garage the Table Tuba had no problem producing 20Hz. 3 Quote Link to comment Share on other sites More sharing options...
Rowan611 Posted November 18, 2015 Share Posted November 18, 2015 SWL, are you saying your THTLP won't go lower than 36hz? That doesn't sound right. THTLP should go into the 23hz range before room gain. I have a regular THT and I'm good down to 15hz in my 4500 cu ft basement. Sent from my HTC One_M8 using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
jason str Posted November 18, 2015 Share Posted November 18, 2015 Could be a placement issue or boundry distance as well. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted November 18, 2015 Share Posted November 18, 2015 Air leak? Quote Link to comment Share on other sites More sharing options...
jason str Posted November 18, 2015 Share Posted November 18, 2015 Air leak? Every build gets checked for leaks after completion. A leak would show up in the form of reduced output & impedance spikes, not a reduction in frequency capability. 1 Quote Link to comment Share on other sites More sharing options...
SWL Posted November 18, 2015 Author Share Posted November 18, 2015 Maybe a high pass filter on your amp ? Sure enough...I went and checked the DIP switches and the low cut filter was on.....so it wasn't going lower than 30hz. Thanks for pointing that out Jason. I forgot ALL about it. 2 Quote Link to comment Share on other sites More sharing options...
SWL Posted November 18, 2015 Author Share Posted November 18, 2015 My ear....and the tones I've run through the Tubas.... is telling me that they don't go much deeper than my 30's (36hz). Now I know why... 2 Quote Link to comment Share on other sites More sharing options...
jason str Posted November 18, 2015 Share Posted November 18, 2015 Maybe a high pass filter on your amp ? Sure enough...I went and checked the DIP switches and the low cut filter was on.....so it wasn't going lower than 30hz. Thanks for pointing that out Jason. I forgot ALL about it. Good to hear you found the problem. Quote Link to comment Share on other sites More sharing options...
Rowan611 Posted November 18, 2015 Share Posted November 18, 2015 My ear....and the tones I've run through the Tubas.... is telling me that they don't go much deeper than my 30's (36hz). Now I know why... That should help....a lot! Good call Jason!! 1 Quote Link to comment Share on other sites More sharing options...
Quiet_Hollow Posted November 18, 2015 Share Posted November 18, 2015 Now that you've fixed the DIP switches. Go back and set the low pass to 35Hz and bump the the amp back up +12 dB. You'll crap your pants the first time you feel that shock wave rip across the floor. 3 Quote Link to comment Share on other sites More sharing options...
jason str Posted November 18, 2015 Share Posted November 18, 2015 In case anybody was interested the THT does not need a high pass filter as long as the recommended drivers or similar is used. Maximum cone excursion happens @ 22Hz (tuning frequency) and the design is thermal limited not X-max limited. The exception would be if a lower than 10mm X-max driver is used, then you may run into problems but one should know not to go overboard with voltages. 1 Quote Link to comment Share on other sites More sharing options...
SWL Posted November 18, 2015 Author Share Posted November 18, 2015 Now that you've fixed the DIP switches. Go back and set the low pass to 35Hz and bump the the amp back up +12 dB. You'll crap your pants the first time you feel that shock wave rip across the floor. LOL.....That's exactly what I was planning on next. 2 Quote Link to comment Share on other sites More sharing options...
jason str Posted November 18, 2015 Share Posted November 18, 2015 Now that you've fixed the DIP switches. Go back and set the low pass to 35Hz and bump the the amp back up +12 dB. You'll crap your pants the first time you feel that shock wave rip across the floor. Funny, just about shat myself testing max output on my old one and that was with a budget driver. Sounded dam nice outside though. 1 Quote Link to comment Share on other sites More sharing options...
Rowan611 Posted November 18, 2015 Share Posted November 18, 2015 In case anybody was interested the THT does not need a high pass filter as long as the recommended drivers or similar is used. Maximum cone excursion happens @ 22Hz (tuning frequency) and the design is thermal limited not X-max limited. The exception would be if a lower than 10mm X-max driver is used, then you may run into problems but one should know not to go overboard with voltages. I've pushed my single THT to crazy limits....uncomfortable limits. Not distortion, just copious amounts of teeth rattling, house vibrating bass. Quote Link to comment Share on other sites More sharing options...
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