Just built my first sub, have a question. - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 25th March 2002, 03:10 AM   #1
diyAudio Member
 
Join Date: Mar 2002
Location: Philadelphia, PA
Send a message via ICQ to SsZERO Send a message via AIM to SsZERO
Question Just built my first sub, have a question.

I recently built a sub using the 15" Tempest from Adire Audio, and the AVA-250 amp. The box is about 210 L with two PNR 3" ports from Parts Express. This sub sounds awesome and is very powerful. Now my question is what do I do with the phase adjustment? I have 0 degrees to 180 degrees, and right now I have it set to maybe 100 degrees. How does changing the setting affect the sub performance?

-= SsZERO =-
  Reply With Quote
Old 25th March 2002, 06:56 AM   #2
griff is offline griff  Australia
diyAudio Member
 
griff's Avatar
 
Join Date: Dec 2001
Location: Melbourne
my understanding is that it is related to sub positioning in the room, if it is directly infront of you then it is at 0 degrees, behind, 180.

hope this helps, if not where is your sub located?
__________________
griff
  Reply With Quote
Old 25th March 2002, 08:15 AM   #3
diyAudio Member
 
Join Date: Mar 2002
Location: Philadelphia, PA
Send a message via ICQ to SsZERO Send a message via AIM to SsZERO
If you are facing the front of my setup, then my sub would about 1 foot in front and a few inches left of the face of my front-left speaker. The driver is facing toward the front of my system...and I have a dial for phase, so I can adjust it to anything in between 0-180.

According to what you say, if my sub was right beside me, then the phase should be 90? But since it is in front of me a little, I guess I should set it to 60-70? My AVIA disc said to use a sound meter to adjust it, but I don't have one and I really don't know what to listen for do adjust by ear.

-= SsZERO =-
  Reply With Quote
Old 25th March 2002, 10:01 AM   #4
griff is offline griff  Australia
diyAudio Member
 
griff's Avatar
 
Join Date: Dec 2001
Location: Melbourne
its all relative to the position of your front speakers, and you should be able to tell what sounds right, and just trial and error.
__________________
griff
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Has any one built this 1KW amp? VT Calais Solid State 250 3rd August 2013 05:14 PM
Question about power amp built in high pass filter crippledchicken Solid State 0 22nd October 2008 06:09 PM
Has anybody built this amp? EspenE Tubes / Valves 1 7th February 2007 11:09 AM
Has anyone built a PS like this? JZatopa Tubes / Valves 5 6th August 2005 03:09 AM
Has anyone built the JT-DAC no.3 raincheck Digital Source 1 22nd June 2002 10:26 PM


New To Site? Need Help?

All times are GMT. The time now is 06:07 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2