DIYSG Titan-615LX Build Thread - Page 4 - AVS Forum | Home Theater Discussions And Reviews
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post #91 of 195 Old 03-01-2017, 09:27 AM - Thread Starter
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Originally Posted by erwinfrombelgium View Post
Without subs, correct?
Denovo 15 subs. One in each Titan cab. No subs otherwise though.
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post #92 of 195 Old 03-01-2017, 09:30 AM
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Originally Posted by VicTorious1 View Post
Denovo 15 subs. One in each Titan cab. No subs otherwise though.
Denovo sub?
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post #93 of 195 Old 03-01-2017, 09:33 AM - Thread Starter
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Originally Posted by gixerking View Post
Denovo sub?
The driver in the Titan 615LX is the Eminence made "Denovo 15". So no subs with the measurement. I was just joking that those drivers in the Titan cab are subs.

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post #94 of 195 Old 03-01-2017, 10:03 AM
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I see, just knew it to be eminence deltalite. Didn't know it was called a denovo
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post #95 of 195 Old 03-01-2017, 10:52 AM
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Regular Deltalites are used in the Fusion-15 and HTM's., not the Titans. Titan woofers use the motor and cones from the Kappalites.
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post #96 of 195 Old 03-01-2017, 01:36 PM
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Quote:
Originally Posted by VicTorious1 View Post
The driver in the Titan 615LX is the Eminence made "Denovo 15". So no subs with the measurement. I was just joking that those drivers in the Titan cab are subs.

Denovo 15
I didn't hear any noise in that video. Did it show any signs of stress?
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post #97 of 195 Old 03-03-2017, 08:55 PM
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Originally Posted by VicTorious1 View Post
What are the 4 clamps at each corner for, that only appear to be holding the sides and nothing else? Are they angled a little to hit the top/bottom too, or just a gratuitous clamp shot?

I know you can never have enough clamps, but I need to know the minimum for a box at a time
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post #98 of 195 Old 03-04-2017, 03:57 AM - Thread Starter
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Originally Posted by dlinsley View Post
What are the 4 clamps at each corner for, that only appear to be holding the sides and nothing else? Are they angled a little to hit the top/bottom too, or just a gratuitous clamp shot?

I know you can never have enough clamps, but I need to know the minimum for a box at a time
Ha. Not just a gratuitous clamp shot. Some of the Baltic birch pieces, while perfectly sized/cut, weren't perfectly flat, as is to be expected with plywood. So the top and bottom pieces tended to move slightly with a clamp putting pressure down the middle. The four clamps that are at the corners assured that the corners would remain straight and the joints wouldn't move while pressure is being applied down the center with the long clamp running down the middle from top to bottom, if that makes sense.
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post #99 of 195 Old 03-04-2017, 07:29 AM
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Questions about the Denovo 15

Could a sub be made with that 15 and tuned to 20Hz--along the lines of the VBSS Dayton PA460? I'm fully aware it won't be flat to 20Hz...or even 30Hz but a good option for a midbass monster that still can be "flat" with DEQ? If it could do a maximum of 110dB at 20 to 25Hz before hitting the dynamic limiter, all is well.

Any chance those 15's will be a MBM option? Maybe spill the beans on the Xmax, Fs, VAS and other T/S goodies to see if it would be a good option VS the PA460?

Just wondering... this year I build subs and am looking at various options.
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post #100 of 195 Old 03-04-2017, 08:52 AM - Thread Starter
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Quote:
Originally Posted by 18Hurts View Post
Questions about the Denovo 15

Could a sub be made with that 15 and tuned to 20Hz--along the lines of the VBSS Dayton PA460? I'm fully aware it won't be flat to 20Hz...or even 30Hz but a good option for a midbass monster that still can be "flat" with DEQ? If it could do a maximum of 110dB at 20 to 25Hz before hitting the dynamic limiter, all is well.

Any chance those 15's will be a MBM option? Maybe spill the beans on the Xmax, Fs, VAS and other T/S goodies to see if it would be a good option VS the PA460?

Just wondering... this year I build subs and am looking at various options.
It's over twice the price of the PA460, has more xmax I believe (based on my comparison to my PA460s) and should be able to be flat down to 30hz (at least based on my in room response even lower), especially with DEQ. It'd definitely be a more than capable MBM, but it's not a cheap driver. It's around $200 if I'm not mistaken.

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post #101 of 195 Old 03-04-2017, 02:17 PM
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Originally Posted by VicTorious1 View Post
It's over twice the price of the PA460, has more xmax I believe (based on my comparison to my PA460s) and should be able to be flat down to 30hz (at least based on my in room response even lower), especially with DEQ. It'd definitely be a more than capable MBM, but it's not a cheap driver. It's around $200 if I'm not mistaken.
Thanks for the information,

I figure the 15 will move at least as much air as the PA460 and be close to the same efficiency but I can use a narrower cabinet. Have a buddy finishing up his HT build and needs two subwoofers but along his entire front wall, he only has 18" max space which a PA460 does not fit. My pondering is two of the Denovo 15's would do about what PA460's do (more Xmax to make up for Sd) and it can be squeezed into tighter spaces.

Would I be wrong to assume the Xmax is over 12mm and the Fs is below 30Hz? Then again, if they are unobtanium drivers in the raw--does not matter much. Thanks for the info!
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post #102 of 195 Old 03-04-2017, 03:37 PM - Thread Starter
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Originally Posted by 18Hurts View Post
Thanks for the information,

I figure the 15 will move at least as much air as the PA460 and be close to the same efficiency but I can use a narrower cabinet. Have a buddy finishing up his HT build and needs two subwoofers but along his entire front wall, he only has 18" max space which a PA460 does not fit. My pondering is two of the Denovo 15's would do about what PA460's do (more Xmax to make up for Sd) and it can be squeezed into tighter spaces.

Would I be wrong to assume the Xmax is over 12mm and the Fs is below 30Hz? Then again, if they are unobtanium drivers in the raw--does not matter much. Thanks for the info!
Since I don't want to destroy my Titan LF drivers to measure the length of the voice coil and the height of the magnetic gap, I won't speculate on the actual xmax. I also don't have a ruler that's precise to 1/10th of millimeter. I'd be surprised if the Fs is much higher than 30 Hz though.
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post #103 of 195 Old 03-04-2017, 05:49 PM
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Quote:
Originally Posted by 18Hurts View Post
Thanks for the information,

I figure the 15 will move at least as much air as the PA460 and be close to the same efficiency but I can use a narrower cabinet. Have a buddy finishing up his HT build and needs two subwoofers but along his entire front wall, he only has 18" max space which a PA460 does not fit. My pondering is two of the Denovo 15's would do about what PA460's do (more Xmax to make up for Sd) and it can be squeezed into tighter spaces.

Would I be wrong to assume the Xmax is over 12mm and the Fs is below 30Hz? Then again, if they are unobtanium drivers in the raw--does not matter much. Thanks for the info!
Erich said that the driver uses the same motor and cone as the Kappalite 3015LF which has an xmax of 10.65mm and an xlim of 17mm. If the motor and the cone are the same then I'm not sure what that leaves that is different, the surround? Perhaps to squeeze a bit more xmax out of the design.
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post #104 of 195 Old 03-04-2017, 07:33 PM
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Originally Posted by gworrel View Post
Erich said that the driver uses the same motor and cone as the Kappalite 3015LF which has an xmax of 10.65mm and an xlim of 17mm. If the motor and the cone are the same then I'm not sure what that leaves that is different, the surround? Perhaps to squeeze a bit more xmax out of the design.
Checked the stats on the 3015LF, it states an Fs of 44Hz which is rather high for a 15--I guess I'll have to wait for Erich to spill the beans. Figure the Denovo version could have a different spider and suspension to allow more Xmax but pure speculation on my part.
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post #105 of 195 Old 03-04-2017, 07:53 PM
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I believe all Kappalites (10" - 15") use the same magnet/motor, but there's a lot they can change to alter the end product. Spider, surround, dust cap, BL, magic dust, etc, etc. For example there are four different 10" Kappalites from high powered midrange to subwoofer by changing some parts.

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post #106 of 195 Old 03-11-2017, 04:50 PM - Thread Starter
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So I finally got around to connecting my XPA-3 to the Titans and I definitely recommend adding power to the Titans above and beyond just the AVR. They were fine on the AVR but I definitely noticed my receiver clipping sometimes at higher db. I know there's not really a need to hit 130db, but these easily and cleanly hit 130db in my room with all speakers driven and just two driven.
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post #107 of 195 Old 03-11-2017, 05:05 PM
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Originally Posted by VicTorious1 View Post
So I finally got around to connecting my XPA-3 to the Titans and I definitely recommend adding power to the Titans above and beyond just the AVR. They were fine on the AVR but I definitely noticed my receiver clipping sometimes at higher db. I know there's not really a need to hit 130db, but these easily and cleanly hit 130db in my room with all speakers driven and just two driven.
I'm on the hunt for a good 3 channel amp for these now after reading your post. Sounds like they had no problems when you turned them up.
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post #108 of 195 Old 03-11-2017, 06:06 PM
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I'm just going to put this here...

http://www.marklevinson.com/productd...ct/no533h.html

http://www.parasound.com/a31.php

http://www.mcintoshlabs.com/us/Produ...roductId=MC303

I've seen this recommended but don't know anything about it... http://www.d-sonic.net/products/3-channel-amplifiers/

Just a few ideas, I'm amp shopping vicariously through you. I think I'd look closely at the McIntosh, what a cool piece.

If you really want big power, 3 monoblocks is probably the best way to accomplish that.

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post #109 of 195 Old 03-11-2017, 06:46 PM
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Originally Posted by OJ Bartley View Post
I'm just going to put this here...

http://www.marklevinson.com/productd...ct/no533h.html

http://www.parasound.com/a31.php

http://www.mcintoshlabs.com/us/Produ...roductId=MC303

I've seen this recommended but don't know anything about it... http://www.d-sonic.net/products/3-channel-amplifiers/

Just a few ideas, I'm amp shopping vicariously through you. I think I'd look closely at the McIntosh, what a cool piece.

If you really want big power, 3 monoblocks is probably the best way to accomplish that.

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I'm sure those are all great amps, but I shudder to think what they cost. If you have lots of money to throw around, why not.
I've owned the Emotiva XPA-3, and really, that's all you need. 200 continuous watts per channel for extremely efficient speakers. Just my 2 cents.

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post #110 of 195 Old 03-12-2017, 04:18 AM
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I'm sure those are all great amps, but I shudder to think what they cost. If you have lots of money to throw around, why not.
I've owned the Emotiva XPA-3, and really, that's all you need. 200 continuous watts per channel for extremely efficient speakers. Just my 2 cents.

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Lol, I didn't see anything about a budget. Stop crushing my dreams!


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post #111 of 195 Old 03-12-2017, 05:56 AM
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I love my Emotiva and Adcom amps.
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post #112 of 195 Old 03-12-2017, 05:58 AM - Thread Starter
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@eng-399 - have you checked out the diy amps? Looks like @Fattykidd successfully built one. I'm looking into that as a potential upgrade option down the line assuming they have a low noise floor. I can hear a little, minor hiss with my ear up to the CD. However, I can't hear it from even a foot away.
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post #113 of 195 Old 03-12-2017, 10:25 AM
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@eng-399 - have you checked out the diy amps? Looks like @Fattykidd successfully built one. I'm looking into that as a potential upgrade option down the line assuming they have a low noise floor. I can hear a little, minor hiss with my ear up to the CD. However, I can't hear it from even a foot away.


Ya I'm all over that thread I was looking last night at the website were Fattykidd bought the amp parts from. I can hear a hiss to from the cd just like you but only when really close to it like your saying. I'm going to start and put a list together and add of the cost but most likely get exactly what he bought.
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Originally Posted by VicTorious1 View Post
@eng-399 - have you checked out the diy amps? Looks like @Fattykidd successfully built one. I'm looking into that as a potential upgrade option down the line assuming they have a low noise floor. I can hear a little, minor hiss with my ear up to the CD. However, I can't hear it from even a foot away.
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Ya I'm all over that thread I was looking last night at the website were Fattykidd bought the amp parts from. I can hear a hiss to from the cd just like you but only when really close to it like your saying. I'm going to start and put a list together and add of the cost but most likely get exactly what he bought.
I was also looking atTHESE . They're very similar to what frisco used in his build.
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post #115 of 195 Old 03-12-2017, 11:32 AM
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post #116 of 195 Old 03-12-2017, 04:18 PM - Thread Starter
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nu4-6000?
Does the NU4-6000 have problems with higher frequencies?
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post #117 of 195 Old 03-12-2017, 04:42 PM
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Does the NU4-6000 have problems with higher frequencies?
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iNukes sound like ASS in the higher freqz.... IJS.....

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post #118 of 195 Old 03-12-2017, 04:55 PM
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iNukes sound like ASS in the higher freqz.... IJS
Is that a no? I guess the iNukes still have that high frequency roll off issue? Shame, I was hoping their latest slight revision took care of that problem.

Carvin has a 4 channel Class D with DSP, I think it runs around $579 for the rig. I think it would be cool if Crown stuffed four XLS1500 amps into the same chassis, stuffed in the XTi DSP, made the high pass filter go down to 10Hz or lower and pumped up the power supply.

Keep dreaming...
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post #119 of 195 Old 03-12-2017, 04:58 PM
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Three bridged Behringer A500 amps would provide decent power for the titan's, XLR input, low noise, fanless and they have nice level indicators on the front so you can see how much power you are actually using. The only issue with that amp is that the attenuators introduce distortion if not left at full.
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post #120 of 195 Old 03-12-2017, 05:53 PM
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Three bridged Behringer A500 amps would provide decent power for the titan's, XLR input, low noise, fanless and they have nice level indicators on the front so you can see how much power you are actually using. The only issue with that amp is that the attenuators introduce distortion if not left at full.
Interesting. I've owned this amp before. I didn't have any issues with it. 500 watts into 8 ohms bridged isn't bad. The cost is not bad for three either. I just wonder if these being so 'affordable' means you get what you pay for in sound quality.
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