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Search: Posts Made By: Jay1
Forum: DIY Speakers and Subs   06-13-2015, 10:46 AM
Replies: 59
Views: 1,378
Posted By Jay1
You should probably start a new thread for your...

You should probably start a new thread for your speaker design issues. I will say you picked the wrong woofer and alignment for your bass goals. Adding a second woofer wont give you better extension,...
Forum: DIY Speakers and Subs   06-13-2015, 08:26 AM
Replies: 59
Views: 1,378
Posted By Jay1
The CD you use is going to determine the...

The CD you use is going to determine the capability on the high and low end. Some CDs might not work very well. The solution shouldn't be to add a tweeter, it should be to find a different CD that...
Forum: DIY Speakers and Subs   06-12-2015, 04:56 PM
Replies: 59
Views: 1,378
Posted By Jay1
Bought a trainload, maybe you're why the price...

Bought a trainload, maybe you're why the price went up :eek: :)

800hz is definitely doable if the CD can handle it. I've only tested the HF146 and Eminence N314T. Both are very good, I slightly...
Forum: DIY Speakers and Subs   05-29-2015, 06:00 AM
Replies: 87
Views: 2,561
Posted By Jay1
You need to adjust the scale of your graph. 20db...

You need to adjust the scale of your graph. 20db is huge, the typical standard for useful comparison is 5db. It looks like there is about a 15db difference between 150hz and 10khz, but your scale...
Forum: DIY Speakers and Subs   05-24-2015, 07:46 AM
Replies: 8
Views: 208
Posted By Jay1
None and nope. This is just initial testing of...

None and nope. This is just initial testing of drivers to determine how and where they could be utilized.
Forum: DIY Speakers and Subs   05-23-2015, 06:56 PM
Replies: 8
Views: 208
Posted By Jay1
Compared to the HF146 it measures pretty...

Compared to the HF146 it measures pretty similarly. The region below 1khz looks slightly cleaner on the HF146, and the region between 1-1.5khz looks cleaner on the N314T. The HF146 also has flatter...
Forum: DIY Speakers and Subs   05-23-2015, 06:57 AM
Replies: 8
Views: 208
Posted By Jay1
The Eminence is $200. They do a good job of...

The Eminence is $200. They do a good job of dampening the titanium phragm. You can see the breakup at 14 khz in the impedance sweep, but it only shows up as a minor artifact on axis, goes away off...
Forum: DIY Speakers and Subs   05-22-2015, 06:39 PM
Replies: 8
Views: 208
Posted By Jay1
Eminence N314T on XT1464

I got quite the surprise when UPS dropped an N314T at my door today? My order from months ago was cancelled and swapped for a HF146, I definitely didnt order another one. Figured I may as well test...
Forum: DIY Speakers and Subs   05-10-2015, 07:41 PM
Replies: 63
Views: 1,692
Posted By Jay1
That's definitely breakup on the radian and is...

That's definitely breakup on the radian and is what scared me away from them. Metal driver breakup is just not appealing in anyway. I would be interested in seeing the HD plot, F2-F5 to see if that...
Forum: DIY Speakers and Subs   05-07-2015, 07:40 PM
Replies: 16
Views: 340
Posted By Jay1
Youre going to need something like this at the...

Youre going to need something like this at the minimum

http://www.parts-express.com/dayton-audio-spa250-250-watt-subwoofer-plate-amplifier--300-803
Forum: DIY Speakers and Subs   05-06-2015, 06:03 PM
Replies: 648
Views: 17,447
Posted By Jay1
I cant view your measurement file. The gate...

I cant view your measurement file. The gate should be set in front of the ripples in the impulse response, those are reflections. You will need to blend a nearfield woofer response if you want to see...
Forum: DIY Speakers and Subs   05-04-2015, 05:37 PM
Replies: 17
Views: 325
Posted By Jay1
Take some scotchbrite or 400gr sandpaper and...

Take some scotchbrite or 400gr sandpaper and gently scuff up the cone, clean it off with denatured alcohol, mask off the surround/frame with low tack tape and paper/plastic/etc.

A few grams of...
Forum: DIY Speakers and Subs   04-29-2015, 05:52 AM
Replies: 370
Views: 13,497
Posted By Jay1
0.1" x driver cone radius. A 12" driver will have...

0.1" x driver cone radius. A 12" driver will have about a 10" cone, radius is then 5" x .1" = .5". The measurement will be good up to 431 hz

Your mic will clip when he signal is too high. The...
Forum: DIY Speakers and Subs   04-28-2015, 08:30 PM
Replies: 370
Views: 13,497
Posted By Jay1
You could just center the mic on a single woofer...

You could just center the mic on a single woofer a 1/2" from the dust cap to take a nearfield measurement, if you just want to see the frequency response.
Forum: DIY Speakers and Subs   04-27-2015, 08:23 PM
Replies: 5
Views: 131
Posted By Jay1
Hmm I've never seen that feature. It only looks...

Hmm I've never seen that feature. It only looks semi useful if you cant calculate port volume. I just plug numbers in here

http://www.hometheatershack.com/forums/enclosure-volume-calculator/
Forum: DIY Speakers and Subs   04-24-2015, 04:39 PM
Replies: 648
Views: 17,447
Posted By Jay1
I think we need to add the caveat that a...

I think we need to add the caveat that a shallower slope only offers better protection above the filter fc. If we take 1 khz crossover point and compare LR4 vs LR2 both will be -6db at 1khz, but the...
Forum: DIY Speakers and Subs   04-23-2015, 04:29 PM
Replies: 2,092
Views: 102,612
Posted By Jay1
PL Premium is actually rated for a 3/8" gap I...

PL Premium is actually rated for a 3/8" gap I believe.
Forum: DIY Speakers and Subs   04-20-2015, 06:01 PM
Replies: 115
Views: 2,143
Posted By Jay1
The measurement distance depends on what the...

The measurement distance depends on what the actual effective radiating radius of the driver is, so measure across the cone from the half way point of the surround. It will likely be around 18"/2 9"....
Forum: DIY Speakers and Subs   04-20-2015, 05:00 PM
Replies: 3
Views: 116
Posted By Jay1
It would be easy to do, you would just need to...

It would be easy to do, you would just need to find someone local willing to do it. I'm sure not interested in buying a pair.
Forum: DIY Speakers and Subs   04-19-2015, 07:52 PM
Replies: 11
Views: 180
Posted By Jay1
What is the internal volume of your sub...

What is the internal volume of your sub enclosures?
Forum: DIY Speakers and Subs   04-19-2015, 11:30 AM
Replies: 8
Views: 279
Posted By Jay1
There's no point in bringing up Klipsch specs,...

There's no point in bringing up Klipsch specs, they are disgustingly inaccurate. They are also too cheap to put notch filters on the metal woofer breakup which is where the famous Klipsch...
Forum: DIY Speakers and Subs   04-19-2015, 08:03 AM
Replies: 12
Views: 281
Posted By Jay1
Nice man. Did you brace the cabinet at all?

Nice man. Did you brace the cabinet at all?
Forum: DIY Speakers and Subs   04-18-2015, 09:27 AM
Replies: 78
Views: 1,654
Posted By Jay1
I think it should be clear by now that ULF ported...

I think it should be clear by now that ULF ported HT subs are not going to going to give you what you're looking for, for music anyway.

You could get 8 of these for less then quad UM18 and have a...
Forum: DIY Speakers and Subs   04-18-2015, 08:55 AM
Replies: 124
Views: 2,479
Posted By Jay1
"as far as I can tell my hearing is the same as...

"as far as I can tell my hearing is the same as it was"

A hearing test would quickly show you how unlikely that is ;)

My job requires a yearly test as I work on the flightline around running...
Forum: DIY Speakers and Subs   04-17-2015, 07:41 PM
Replies: 147
Views: 2,718
Posted By Jay1
I'm looking at 3 ea 4" pvc ports, so "round...

I'm looking at 3 ea 4" pvc ports, so "round ported marty"? haha I cant deny the convenience of using 24" handy panels
Showing results 1 to 25 of 4504

 
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