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 1000
Search took 0.47 seconds.
Search: Keyword(s): ; Posts Made By: mtg90
Forum: DIY Speakers and Subs   08-27-2016, 10:32 PM
Replies: 5
Views: 92
Posted By mtg90
Yep, more heat needed so that the solder flows...

Yep, more heat needed so that the solder flows onto the copper board better. If you have an iron with adjustable temp turn it up near or at max. If not let it warm up longer before trying to reflow...
Forum: DIY Speakers and Subs   08-26-2016, 08:21 PM
Replies: 10
Views: 125
Posted By mtg90
Yes that will minimize the number of wires you...

Yes that will minimize the number of wires you need to run since you only need to provide a single signal wire to the amp and have one run of speaker cable to your sub when the amp is bridged. There...
Forum: Speakers   08-23-2016, 08:54 PM
Replies: 3,760
Views: 164,066
Posted By mtg90
If Mike ever wanted to hold another GTG I can...

If Mike ever wanted to hold another GTG I can setup multiple amps allowing instant level matched switching of up three single or stereo pairs of speakers at a time. Can implement a sharp high pass...
Forum: Speakers   08-23-2016, 08:43 PM
Replies: 82
Views: 2,649
Posted By mtg90
It's often not seen as a good thing because there...

It's often not seen as a good thing because there would be no suppression of any cone breakup, these are frequencies where the cone or dust cap begins to self resonate rather then act like a piston...
Forum: Speakers   08-23-2016, 05:17 PM
Replies: 82
Views: 2,649
Posted By mtg90
http://www.avsforum.com/forum/imagehosting/7553095...

http://www.avsforum.com/forum/imagehosting/755309557b758f769f18.jpg

Looking at this photo of the crossover board it appears there isn't even a low pass filter for the woofer, rather everything...
Forum: DIY Speakers and Subs   08-23-2016, 11:58 AM
Replies: 14
Views: 622
Posted By mtg90
Oh my mistake, in that case it is quite...

Oh my mistake, in that case it is quite surprisingly low. Might have to do the same double MDF rings I suggested with the 4" ports. Actually if you don't mind just pull the ports out and check...
Forum: DIY Speakers and Subs   08-23-2016, 11:24 AM
Replies: 14
Views: 622
Posted By mtg90
My simulations show that for a 4.6 cuft box two...

My simulations show that for a 4.6 cuft box two 3" ports 3" long do give a tuning of about 39hz so your measurements confirm that. You would need two 4" ports at 2.5-3" long to get the tuning up to...
Forum: DIY Speakers and Subs   08-21-2016, 05:21 PM
Replies: 30
Views: 954
Posted By mtg90
If you are more then 10' away you should be able...

If you are more then 10' away you should be able to go from about 6-8" below the waveguide to 6-8" above without much change in the direct sound from the speaker.
Forum: DIY Speakers and Subs   08-21-2016, 05:12 PM
Replies: 13
Views: 479
Posted By mtg90
Awesome job on those, they look great!

Awesome job on those, they look great!
Forum: DIY Speakers and Subs   08-21-2016, 05:07 PM
Replies: 1
Views: 64
Posted By mtg90
You can get down to diameter of the pole vent in...

You can get down to diameter of the pole vent in unobstructed clearance before you start to get noise issues or restrict the air flow through it.
Forum: DIY Speakers and Subs   08-20-2016, 11:28 AM
Replies: 85
Views: 1,981
Posted By mtg90
3x CS1214 in ~6cuft sealed > 1 PA460 ~6cuft...

3x CS1214 in ~6cuft sealed > 1 PA460 ~6cuft ported by 1-3dB at the bottom and top end and about 6dB in the middle of the range. However that's with 6x the power going to the JBL's vs. the single...
Forum: DIY Speakers and Subs   08-17-2016, 02:22 PM
Replies: 85
Views: 1,981
Posted By mtg90
I grabbed a pair of these just to check out, I...

I grabbed a pair of these just to check out, I thought I would share the T/S specs I measured on one after some break in:

* This data was exported from DATS the Dayton Audio Test System
*
*...
Forum: DIY Speakers and Subs   08-07-2016, 10:28 PM
Replies: 30
Views: 954
Posted By mtg90
You don't need to cover the bracing with anything.

You don't need to cover the bracing with anything.
Forum: DIY Speakers and Subs   07-22-2016, 09:12 AM
Replies: 3,697
Views: 219,990
Posted By mtg90
I'd suggest hooking the crossover I tested back...

I'd suggest hooking the crossover I tested back up to a speaker and measuring the whole speaker with REW again.

It's normal to see an output reduction on the output side of the capacitor (1)...
Forum: DIY Speakers and Subs   07-14-2016, 12:43 PM
Replies: 218
Views: 14,533
Posted By mtg90
The two 4" ports should be 17" long, leaving a...

The two 4" ports should be 17" long, leaving a ~2" behind the port to the rear wall for clearance.
Forum: DIY Speakers and Subs   07-07-2016, 09:23 PM
Replies: 218
Views: 14,533
Posted By mtg90
Sorry I wrote those up a while back and forgot to...

Sorry I wrote those up a while back and forgot to upload them, you can find the text DSP settings for use with other DSP's in the attachments on the first post.
Forum: DIY Speakers and Subs   07-05-2016, 09:25 PM
Replies: 3,697
Views: 219,990
Posted By mtg90
Due to interaction with other parts on the board...

Due to interaction with other parts on the board measured value will differ. That 3 ohm resistor is in parallel with the inductor for the HF 2nd order high pass (the DCR of the coil is ~0.5 ohms)....
Forum: DIY Speakers and Subs   07-05-2016, 10:30 AM
Replies: 3,697
Views: 219,990
Posted By mtg90
That or somehow the HF output is shorted. ...

That or somehow the HF output is shorted.

If you can post a picture showing the back of one of the bad boards.
Forum: DIY Speakers and Subs   06-09-2016, 09:58 PM
Replies: 12
Views: 212
Posted By mtg90
Looks like it could be an M&K S-150 based on the...

Looks like it could be an M&K S-150 based on the shaded tweeters in the schematic.

Trouble is as LTD02 pointed out and passive high pass filter will interact with the peak in the impedance caused...
Forum: DIY Speakers and Subs   06-07-2016, 12:28 PM
Replies: 67
Views: 2,987
Posted By mtg90
Nope, I have the corrected polarity on your...

Nope, I have the corrected polarity on your boards, woofers and mids normal, HF reversed.

I'll need to create a new crossover assembly thread on the new forum and add the 1299 there.
Forum: Audio Gear   06-04-2016, 07:24 PM
Replies: 5
Views: 224
Posted By mtg90
FS: Unisound WP2503 Speakers + DIY Subs and Enclsoures (Some Free Stuff)

Trying to clear out some unused gear.

Unisound WP2503 speakers, cabinets have some dings on the back and sides which become almost invisible a few feet back in a room, otherwise good shape. ...
Forum: DIY Speakers and Subs   06-02-2016, 03:34 PM
Replies: 94
Views: 2,548
Posted By mtg90
Another note, I had this new version of the...

Another note, I had this new version of the crossover installed for Mikes GTG and was running it with the optional padding resistor installed. I have a feeling they might have been better off...
Forum: DIY Speakers and Subs   06-02-2016, 03:16 PM
Replies: 94
Views: 2,548
Posted By mtg90
When I made the change there was a slight but...

When I made the change there was a slight but noticeable increase in midbass impact with the higher tuning. Given the option I don't see any reason to leave it at the lower tuning in the standard...
Forum: DIY Speakers and Subs   06-02-2016, 11:56 AM
Replies: 94
Views: 2,548
Posted By mtg90
I found that the stock port tube length puts the...

I found that the stock port tube length puts the tuning in the mid 30's rather then mid 40's where it should have been. Shortening the ports to 1.5-2" corrects that, it should give you an extra...
Forum: DIY Speakers and Subs   05-24-2016, 09:46 PM
Replies: 218
Views: 14,533
Posted By mtg90
An inuke1000 can power two while bridged but I...

An inuke1000 can power two while bridged but I think three would be pushing it as impedance gets too low.
Showing results 1 to 25 of 1000

 
Forum Jump: