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Forum: DIY Speakers and Subs   03-28-2015, 07:43 AM
Replies: 186
Views: 3,328
Posted By Ricci
The GH is a 15-16Hz effective cab. The minimum...

The GH is a 15-16Hz effective cab. The minimum excursion point is 17Hz. The high pass I recommend is at about 13-14Hz depending on slope and alignment,etc.. It will handle an amp capable of about...
Forum: DIY Speakers and Subs   03-27-2015, 11:48 AM
Replies: 186
Views: 3,328
Posted By Ricci
There's an impedance measurement showing the...

There's an impedance measurement showing the drivers are in series in the measurements...I think it says so in the notes as well. Yes DO is a PITA to measure. Maybe I should have run it with the...
Forum: DIY Speakers and Subs   03-26-2015, 08:52 PM
Replies: 186
Views: 3,328
Posted By Ricci
It's probably a real nice driver but some things...

It's probably a real nice driver but some things jump out. 14mm Xmax rating yet the wind height is 25mm and the gap is 12mm? That's a coil overhang of 6.5mm. A long way from 14. Maybe there are some...
Forum: DIY Speakers and Subs   03-06-2015, 11:14 AM
Replies: 20
Views: 1,320
Posted By Ricci
The TH50 is legit. That's the tapped horn that...

The TH50 is legit. That's the tapped horn that made me buy into them after hearing one. I'd much rather have a TH50 than a dts10. Won't go as low but its smoother and more powerful. A lot of that is...
Forum: DIY Speakers and Subs   02-25-2015, 11:58 AM
Replies: 145
  HzHorn
Views: 3,881
Posted By Ricci
If I get a chance I will show you what I mean....

If I get a chance I will show you what I mean. Your sims look fine but your cab design is not what you are simulating.

S2 is at the center of the radiating area/driver cone. You clearly have way...
Forum: DIY Speakers and Subs   02-25-2015, 09:01 AM
Replies: 145
  HzHorn
Views: 3,881
Posted By Ricci
Just from looking at it what you have modeled is...

Just from looking at it what you have modeled is in no way representing the cabinet design. The driver loading and throat area is critical. You have an S2 of 299 which seems a bit small judging from...
Forum: DIY Speakers and Subs   02-11-2015, 01:22 PM
Replies: 927
Views: 26,746
Posted By Ricci
I’ve talked so much about the XXX drivers vs the...

I’ve talked so much about the XXX drivers vs the LMS and others over the years.

Yes a XXX is handicapped in the 4cube test box. So were some other drivers. Here’s the thing that doesn’t really...
Forum: DIY Speakers and Subs   02-05-2015, 01:31 PM
Replies: 33
Views: 602
Posted By Ricci
It may not be clipping but that is the first...

It may not be clipping but that is the first thing I would check. The response over a large frequency range seems unnaturally flat for an unequalized measurement despite the sawtooth pattern. May be...
Forum: DIY Speakers and Subs   02-05-2015, 07:51 AM
Replies: 9
Views: 134
Posted By Ricci
Nice to see you around too Bill. I can see...

Nice to see you around too Bill.

I can see loud abrupt noises being a no no around large skittish animals. Just get a cheap 2ch receiver and try it out. You may still have to worry about some pops...
Forum: DIY Speakers and Subs   02-05-2015, 07:40 AM
Replies: 33
Views: 602
Posted By Ricci
Clipping the mic input.

Clipping the mic input.
Forum: DIY Speakers and Subs   02-05-2015, 07:36 AM
Replies: 1,036
Views: 42,326
Posted By Ricci
??? I've been measuring distortion at various...

???
I've been measuring distortion at various drive levels since nearly the beginning. Voltages are now listed for anything in the past few years as well.

Multiple box testing is nice but not...
Forum: DIY Speakers and Subs   02-04-2015, 12:11 PM
Replies: 9
Views: 134
Posted By Ricci
Hey Bill. If you turn the gain on the amp all of...

Hey Bill. If you turn the gain on the amp all of the way up you should be able to get enough signal out of the headphone jack on an iPod or phone running straight in. I use a similar scheme in my...
Forum: DIY Speakers and Subs   02-04-2015, 11:24 AM
Replies: 454
Views: 50,471
Posted By Ricci
@Archaea...

@Archaea (http://www.avsforum.com/forum/member.php?u=7450673), @Gorilla83 (http://www.avsforum.com/forum/member.php?u=8364590)

Here is the v2 template from the print. If either of you want I can...
Forum: DIY Speakers and Subs   02-04-2015, 10:38 AM
Replies: 490
Views: 15,355
Posted By Ricci
BassThatHz I suspect that the meter is only...

BassThatHz I suspect that the meter is only accurate around 40-80Hz. Mostly because the resistance calculations just don't make sense. That would be a very odd reading at 10Hz for a sealed box.
Forum: DIY Speakers and Subs   02-03-2015, 09:54 AM
Replies: 490
Views: 15,355
Posted By Ricci
Thanks Brian. I had never heard of the phase...

Thanks Brian. I had never heard of the phase angle of back EMF causing an issue for Class D amps. I think I may have had an issue with a Class D amp related to this but I'm not sure (Inuke 6000),...
Forum: DIY Speakers and Subs   02-01-2015, 06:01 PM
Replies: 204
Views: 6,622
Posted By Ricci
Hey Erin. I did not know that you did not have...

Hey Erin. I did not know that you did not have the Klippel system anymore. As of now it looks like it is just Patrick that does then.

At one time I inquired about a system with them and from what...
Forum: DIY Speakers and Subs   01-30-2015, 01:20 PM
Replies: 204
Views: 6,622
Posted By Ricci
Lots of stuff going on here... LTD02, ...

Lots of stuff going on here...

LTD02,
The point of the Klippel system was to provide a standard and also a repeatable performance metric system for driver design and development. Not everyone...
Forum: DIY Speakers and Subs   01-28-2015, 11:18 AM
Replies: 27
Views: 972
Posted By Ricci
Hey Rage...No plans for a refold on the Baby...

Hey Rage...No plans for a refold on the Baby Sealhorn I mean the Othorn yet. Got to many other things in the fire. Maybe someday.
Forum: DIY Speakers and Subs   01-27-2015, 03:07 PM
Replies: 27
Views: 972
Posted By Ricci
Thanks I like this fold. I developed it on the PH...

Thanks I like this fold. I developed it on the PH and then wondered if I could get it to work on the GH and it did. One issue that bugs me a bit is you have to get creative with the terminal and...
Forum: DIY Speakers and Subs   01-27-2015, 11:29 AM
Replies: 27
Views: 972
Posted By Ricci
Looks like you really hammered that cab out! Hope...

Looks like you really hammered that cab out! Hope you enjoy.
Forum: DIY Speakers and Subs   01-27-2015, 11:22 AM
Replies: 1,036
Views: 42,326
Posted By Ricci
Not to continue a thread derail, but if anyone...

Not to continue a thread derail, but if anyone wants to...Input the measured params for the Q18 on DB and input them into HR or Winisd. Set sealed box size to 120L. Set the LE to 18mH. Set the Rg to...
Forum: DIY Speakers and Subs   01-16-2015, 08:53 AM
Replies: 490
Views: 15,355
Posted By Ricci
Thanks for the reply Brian. One more question......

Thanks for the reply Brian. One more question... Is it possible for a very reactive load to cause problems with some amplifiers to the point of perhaps causing damage?
Forum: DIY Speakers and Subs   01-16-2015, 05:56 AM
Replies: 490
Views: 15,355
Posted By Ricci
Brian can you expand on the above statement? PFC...

Brian can you expand on the above statement? PFC is constantly touted as being "green", improving conversion efficiency and reducing power consumption by the device. All of the measurement data I've...
Forum: DIY Speakers and Subs   01-15-2015, 09:06 AM
Replies: 490
Views: 15,355
Posted By Ricci
Brian I too would like to see a bit more...

Brian I too would like to see a bit more documentation on your amps. I have used them enough to know they make power but ratings like the capacitance available, peak voltage and peak current would be...
Forum: DIY Speakers and Subs   01-14-2015, 01:24 PM
Replies: 34
Views: 1,014
Posted By Ricci
About the UXL...Yes it died. Yes it was my fault....

About the UXL...Yes it died. Yes it was my fault.

Many heavy duty drivers can handle a very brief blip of everything the amp has up near 60-100Hz without bottoming. That is routine. Applying the...
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