AVS Forum | Home Theater Discussions And Reviews - Search Results
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!


Showing results 1 to 25 of 5000
Search took 1.85 seconds.
Search: Posts Made By: notnyt
Forum: DIY Speakers and Subs   07-01-2015, 02:24 PM
Replies: 872
Views: 30,217
Posted By notnyt
There have been thorough tests of the fp14000 by...

There have been thorough tests of the fp14000 by Langston Holland and others. I've linked em a few times. I'll eventually get one tested and the sp amp tested, I'm just so backlogged w/ work lately...
Forum: DIY Speakers and Subs   06-29-2015, 08:23 PM
Replies: 872
Views: 30,217
Posted By notnyt
We give these to datacenter customers. They...

We give these to datacenter customers. They don't do so well over 15A like mentioned, and will complain.
Forum: DIY Speakers and Subs   06-29-2015, 12:43 PM
Replies: 173
Views: 1,909
Posted By notnyt
And who the hell uses speclab to calculate THD ;)

And who the hell uses speclab to calculate THD ;)
Forum: DIY Speakers and Subs   06-29-2015, 09:11 AM
Replies: 70
Views: 1,089
Posted By notnyt
Seems to hold tight until around 800hz, but...

Seems to hold tight until around 800hz, but starts loosening up around 700. Still, probably good enough. I wasn't even aware the DE250 could run that low. B&C lists it at 1000hz.
Forum: DIY Speakers and Subs   06-28-2015, 10:46 PM
Replies: 173
Views: 1,909
Posted By notnyt
Now if you want to have some fun, model the lms...

Now if you want to have some fun, model the lms in a box tuned to 15hz with 13 cubes per driver along with those, or model two in 26 cubes. UXL18 is very close as well to that.
Forum: DIY Speakers and Subs   06-28-2015, 01:59 PM
Replies: 872
Views: 30,217
Posted By notnyt
RMS power is a misnomer. It's a power value...

RMS power is a misnomer. It's a power value derived from using the RMS value of voltage and/or amperage.

Power can be represented as peak power, the max instantaneous power output, or just Power...
Forum: DIY Speakers and Subs   06-28-2015, 01:45 PM
Replies: 872
Views: 30,217
Posted By notnyt
Taking RMS values for power is meaningless, what...

Taking RMS values for power is meaningless, what you want is the average value. I'll see what I can do when I get a few minutes
Forum: DIY Speakers and Subs   06-28-2015, 12:35 PM
Replies: 872
Views: 30,217
Posted By notnyt
RMS is not area under the curve

RMS is not area under the curve
Forum: DIY Speakers and Subs   06-28-2015, 12:52 AM
Replies: 872
Views: 30,217
Posted By notnyt
that's exactly what I was talking about, I just...

that's exactly what I was talking about, I just don't know if measurements work on math plots. I have a ds1104z. I'll try it soon.
Forum: DIY Speakers and Subs   06-27-2015, 10:05 PM
Replies: 872
Views: 30,217
Posted By notnyt
Nah, this is great discussion and needs to take...

Nah, this is great discussion and needs to take place. Thank you for being persistent as it's proven my efficiency data is no good since I can't properly calculate input power. I just spent like 5...
Forum: DIY Speakers and Subs   06-27-2015, 06:11 PM
Replies: 70
Views: 1,089
Posted By notnyt
seems low for that waveguide

seems low for that waveguide
Forum: DIY Speakers and Subs   06-27-2015, 02:44 PM
Replies: 872
Views: 30,217
Posted By notnyt
it should

it should
Forum: DIY Speakers and Subs   06-27-2015, 12:00 PM
Replies: 872
Views: 30,217
Posted By notnyt
I just woke up and have to piss really bad and I...

I just woke up and have to piss really bad and I have to go deal with some car **** soon, so I'll try to be quick. This is easier for you to investigate with square waves, as you can calculate rms...
Forum: DIY Speakers and Subs   06-26-2015, 08:25 PM
Replies: 945
Views: 206,269
Posted By notnyt
Try this.. paging Ivan Beaver

Try this.. paging Ivan Beaver
Forum: Speakers   06-26-2015, 07:17 PM
Replies: 1,234
Views: 30,877
Posted By notnyt
This is why there isn't anything on my walls ;)

This is why there isn't anything on my walls ;)
Forum: DIY Speakers and Subs   06-26-2015, 07:05 PM
Replies: 872
Views: 30,217
Posted By notnyt
This seems flawed as you're representing power as...

This seems flawed as you're representing power as an instantaneous measurement based on the multiple of voltage and current, where it's actually a measurement of work over time. You need to at least...
Forum: DIY Speakers and Subs   06-26-2015, 06:50 PM
Replies: 70
Views: 1,089
Posted By notnyt
math, sound moves at 1116 feet per second at sea...

math, sound moves at 1116 feet per second at sea level. Divide by 750, you get 1.488 feet, which is 17.856 inches.
Forum: DIY Speakers and Subs   06-26-2015, 03:32 PM
Replies: 872
Views: 30,217
Posted By notnyt
power out is being calculated by v^2/r, power in...

power out is being calculated by v^2/r, power in is being calculated by VI (120 * Irms). Efficiency = power out / power in.

http://i.imgur.com/25EdxDG.png
Forum: DIY Speakers and Subs   06-26-2015, 12:41 PM
Replies: 872
Views: 30,217
Posted By notnyt
The scope I have should be calculating rms...

The scope I have should be calculating rms current properly, even with big peaks.
Forum: DIY Speakers and Subs   06-26-2015, 11:22 AM
Replies: 872
Views: 30,217
Posted By notnyt
Irms is the input draw from the wall

Irms is the input draw from the wall
Forum: DIY Speakers and Subs   06-25-2015, 09:25 PM
Replies: 173
Views: 1,909
Posted By notnyt
www.facebook.com/winisd...

www.facebook.com/winisd (http://www.facebook.com/winisd) for the latest version, you're using an old one.

Also, if you're looking for substantial output, I'd avoid sealed.

And to answer a...
Forum: DIY Speakers and Subs   06-25-2015, 05:10 PM
Replies: 173
Views: 1,909
Posted By notnyt
10-15 cubes, put it in winisd

10-15 cubes, put it in winisd
Forum: DIY Speakers and Subs   06-25-2015, 04:59 PM
Replies: 173
Views: 1,909
Posted By notnyt
UXL18s or similar in large ported boxes tuned to...

UXL18s or similar in large ported boxes tuned to 15hz, go ;)

Or some of the B&C 21s
Forum: DIY Speakers and Subs   06-24-2015, 07:33 AM
Replies: 10
Views: 212
Posted By notnyt
Why would you have to build multiple relays if...

Why would you have to build multiple relays if you can only use one of the panamax? You can hook a power strip into the diy relays for the same effect.
Forum: DIY Speakers and Subs   06-21-2015, 05:08 PM
Replies: 5,085
Views: 444,559
Posted By notnyt
*shrug* could be a bad batch, just throwing some...

*shrug* could be a bad batch, just throwing some ideas out there. Could be a messed up source feeding it dc or grounding issues between sources if not running fully balanced... Anyway, could...
Showing results 1 to 25 of 5000

 
Forum Jump: