High pass pulling subs - Car Audio | DiyMobileAudio.com | Car Stereo Forum

Reply
 
LinkBack Thread Tools Display Modes
Old 08-13-2019   #1
 
Enthusiast
Join Date: Jul 2015
Location: louisiana
Posts: 1,723

Thanks: 1
Thanked 154 Times in 112 Posts
Rep Power: 70 drop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enough


iTrader: (0)



Default High pass pulling subs

I was tinkering with a high pass on my subs and it pulls the subs rearward.

I'm assuming adding that filter causes a phase shift . I dont remember much about high passing subs. What's the deal?
drop1 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-13-2019   #2
DIYMA 500 Club
 
Hillbilly SQ's Avatar
 
Blue Collar Audiophile
Join Date: Jan 2007
Location: Arkansas
Age: 37
Posts: 10,156

12V Company:
Complacent Audio
Position:
Incoherent rambler

Thanks: 277
Thanked 465 Times in 381 Posts
Rep Power: 306 Hillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond repute


iTrader: (21)



Default Re: High pass pulling subs

It's just a subsonic filter. Interested to see what the experts say about a possible phase shift.

'16 single cab Ram Tradesman ST with HEMI...Pioneer avh-501ex...Helix dsp.2...Helix G-Five...Zapco ST-4X SQ...LPG 26na...Audiofrog gb25...Scanspeak Discovery 7"...Dayton HO12d4...MAKE DIYMA GREAT AGAIN!
Hillbilly SQ is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #3
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2008
Location: Aurora, Co
Age: 36
Posts: 6,600

Thanks: 0
Thanked 481 Times in 409 Posts
Rep Power: 373 gijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond repute


iTrader: (7)



Default Re: High pass pulling subs

The only thing that I can think of is that there is already some rattle/noise/distortion pulling the stage back but having the low frequencies playing is masking it. When you cut the lows with the HPF, that sound becomes more apparent. How high are you setting the HPF? Was this more of an experiment, or are you trying to limit excursion, increase power handling, is it a ported box?
gijoe is offline   Reply With Quote Quick reply to this message
 
Old 08-13-2019   #4
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2006
Location: NJ
Posts: 5,224

Thanks: 53
Thanked 34 Times in 33 Posts
Rep Power: 222 tyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura about


iTrader: (81)



Default Re: High pass pulling subs

Obvious question but have you tried flipping phase since adding hp?

Subaru Impreza - Pioneer MVH-1400NEX - Zapco Studio 100 - ESB DT 8.25 - Zapco ST-204D SQ - ESB 8.165 - Sundown SD3-10

Jeep Patriot - JBL MS8 - Alpine PDR-F50 - Kenwood KFC-XP6902C (6x9 + 2.75 wideband) - MB Quart P19 tweets - Alpine PDR-M65 - Boston Acoustics g5 10"
tyroneshoes is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #5
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2008
Location: Aurora, Co
Age: 36
Posts: 6,600

Thanks: 0
Thanked 481 Times in 409 Posts
Rep Power: 373 gijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond repute


iTrader: (7)



Default Re: High pass pulling subs

There's no reason that a HPF at the bottom end would cause a phase issue.
gijoe is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #6
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2006
Location: NJ
Posts: 5,224

Thanks: 53
Thanked 34 Times in 33 Posts
Rep Power: 222 tyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura about


iTrader: (81)



Default Re: High pass pulling subs

Quote:
Originally Posted by gijoe View Post
There's no reason that a HPF at the bottom end would cause a phase issue.
Id think not, but it is possible.

Subaru Impreza - Pioneer MVH-1400NEX - Zapco Studio 100 - ESB DT 8.25 - Zapco ST-204D SQ - ESB 8.165 - Sundown SD3-10

Jeep Patriot - JBL MS8 - Alpine PDR-F50 - Kenwood KFC-XP6902C (6x9 + 2.75 wideband) - MB Quart P19 tweets - Alpine PDR-M65 - Boston Acoustics g5 10"
tyroneshoes is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #7
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2008
Location: Aurora, Co
Age: 36
Posts: 6,600

Thanks: 0
Thanked 481 Times in 409 Posts
Rep Power: 373 gijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond repute


iTrader: (7)



Default Re: High pass pulling subs

Quote:
Originally Posted by tyroneshoes View Post
Id think not, but it is possible.
Is it though? I'm not so sure it's even possible...

That's not intended as sass, but an honest question.

From the LPF down on the sub channel nothing has changed. The HPF should just attenuate the low frequencies at whatever rate is chosen by the slope. There is no other speaker taking over below that, so there won't be anything for it to get out of phase with. Remember, phase is relative. A single speaker cannot be out of phase, phase issues require multiple sources.

Last edited by gijoe; 08-13-2019 at 04:40 PM..
gijoe is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #8
DIYMA 500 Club
 
Hillbilly SQ's Avatar
 
Blue Collar Audiophile
Join Date: Jan 2007
Location: Arkansas
Age: 37
Posts: 10,156

12V Company:
Complacent Audio
Position:
Incoherent rambler

Thanks: 277
Thanked 465 Times in 381 Posts
Rep Power: 306 Hillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond reputeHillbilly SQ has a reputation beyond repute


iTrader: (21)



Default Re: High pass pulling subs

I've seen some strange stuff happen in this hobby so anything's possible.

'16 single cab Ram Tradesman ST with HEMI...Pioneer avh-501ex...Helix dsp.2...Helix G-Five...Zapco ST-4X SQ...LPG 26na...Audiofrog gb25...Scanspeak Discovery 7"...Dayton HO12d4...MAKE DIYMA GREAT AGAIN!
Hillbilly SQ is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #9
 
Enthusiast
Join Date: Jul 2015
Location: louisiana
Posts: 1,723

Thanks: 1
Thanked 154 Times in 112 Posts
Rep Power: 70 drop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enough


iTrader: (0)



Default

Quote:
Originally Posted by gijoe View Post
The only thing that I can think of is that there is already some rattle/noise/distortion pulling the stage back but having the low frequencies playing is masking it. When you cut the lows with the HPF, that sound becomes more apparent. How high are you setting the HPF? Was this more of an experiment, or are you trying to limit excursion, increase power handling, is it a ported box?
Quote:
Originally Posted by tyroneshoes View Post
Obvious question but have you tried flipping phase since adding hp?
There are no rattles. Spent a lot if time and money making sure of that.


I didn't try flipping the phase as it doesnt sound like a 180. More like about 30 degrees of shift.

I run ported and I was experimenting with a filter at 25 to 30 hz

What I find odd is it affected the subs at the crossover frequncy which is 73 hz. It separated the bass. Kind off stretched it out when I was expecting it to make it tighter.

It wasnt a complete separation like a phase flip.
My kick drums went from the windshield to the front of the dash in distance.

Anyway. I turned it back off. I dont run enough sub to need it.
drop1 is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #10
 
Enthusiast
Join Date: Jul 2015
Location: louisiana
Posts: 1,723

Thanks: 1
Thanked 154 Times in 112 Posts
Rep Power: 70 drop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enough


iTrader: (0)



Default

It was an 18db butterworth if it matters.
drop1 is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #11
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2006
Location: NJ
Posts: 5,224

Thanks: 53
Thanked 34 Times in 33 Posts
Rep Power: 222 tyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura abouttyroneshoes has a spectacular aura about


iTrader: (81)



Default Re: High pass pulling subs

try it..see what happens. If nothing, then rule it out real quick. I tend to prefer even slope LR filters. All crossovers can alter phase as can TA. If your box is vented around 30hz, I never really used a subsonic. 35 or so...yeah.

One of the reasons I liked old audiocontrol crossovers. Fixed crossover point and completely variable phase. Mess around with crossover slopes and types.

Subaru Impreza - Pioneer MVH-1400NEX - Zapco Studio 100 - ESB DT 8.25 - Zapco ST-204D SQ - ESB 8.165 - Sundown SD3-10

Jeep Patriot - JBL MS8 - Alpine PDR-F50 - Kenwood KFC-XP6902C (6x9 + 2.75 wideband) - MB Quart P19 tweets - Alpine PDR-M65 - Boston Acoustics g5 10"
tyroneshoes is offline   Reply With Quote Quick reply to this message
Old 08-13-2019   #12
 
GEM592's Avatar
 
Member
Join Date: Jun 2015
Location: AZ
Posts: 1,485

Thanks: 83
Thanked 145 Times in 139 Posts
Rep Power: 68 GEM592 will become famous soon enoughGEM592 will become famous soon enoughGEM592 will become famous soon enoughGEM592 will become famous soon enoughGEM592 will become famous soon enoughGEM592 will become famous soon enough


iTrader: (3)



Default Re: High pass pulling subs

Quote:
Originally Posted by Hillbilly SQ View Post
I've seen some strange stuff happen in this hobby so anything's possible.
Well there you go, calling it a hobby
GEM592 is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #13
DIYMA 500 Club
 
LBaudio's Avatar
 
Member
Join Date: Jan 2009
Location: EU/Slovenia
Age: 47
Posts: 1,256

Thanks: 13
Thanked 153 Times in 140 Posts
Rep Power: 306 LBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond reputeLBaudio has a reputation beyond repute


iTrader: (0)



Default Re: High pass pulling subs

What happens if you set SSF lower - at 20Hz....does the problem still exist?
What happens if you retune your box lower and switch off SSF?
can you move your SW enclosure around the boot.

For Fast Moving Concerts
Team LB audio
Team Hybrid Audio
Team BRAX
Team SCB
LBaudio is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #14
DIYMA 500 Club
 
metanium's Avatar
 
Member
Join Date: Feb 2007
Location: Fort Worth, TX
Posts: 1,189

Thanks: 24
Thanked 98 Times in 78 Posts
Rep Power: 167 metanium will become famous soon enoughmetanium will become famous soon enoughmetanium will become famous soon enoughmetanium will become famous soon enoughmetanium will become famous soon enoughmetanium will become famous soon enough


iTrader: (36)



Default Re: High pass pulling subs

Quote:
Originally Posted by gijoe View Post
Remember, phase is relative. A single speaker cannot be out of phase, phase issues require multiple sources.
While I agree with everything you said here, I'd like to add that "multiple sources" can still mean a single driver. i.e. a single driver can have phase issues or interference between its primary sound (direct) and secondary sound (reflections). Cars is hard.

’14 Tundra: Pioneer AVH2300NEX - Helix Mini - RF 2-Punch 200x2 & 1-Punch 240x4 Trans.ana - AudioFrog GB15, GB60 & GB12D2
metanium is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #15
Upgrade Your Membership!
 
SkizeR's Avatar
 
Prisoner
Join Date: Apr 2011
Location: New York
Posts: 17,358

12V Company:
Apicella Auto Sound
Position:
Janitor

Thanks: 1,126
Thanked 1,776 Times in 1,235 Posts
Rep Power: 455 SkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond repute


iTrader: (42)



Default Re: High pass pulling subs

Quote:
Originally Posted by gijoe View Post
There's no reason that a HPF at the bottom end would cause a phase issue.
It absolutely will..

Before subsonic is applied..








vs after a 25hz 18db butterworth (like op mentioned) high pass is applied.








The phase shifted just about 45 degrees at the low pass crossover point, aka, added 50 inches worth of group delay considering the 65hz low pass. 45 degrees is more than enough to cause an audible and measurable difference.

SkizeR is online now   Reply With Quote Quick reply to this message
The Following User Says Thank You to SkizeR For This Useful Post:
tyroneshoes (08-14-2019)
Old 08-14-2019   #16
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2008
Location: Aurora, Co
Age: 36
Posts: 6,600

Thanks: 0
Thanked 481 Times in 409 Posts
Rep Power: 373 gijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond repute


iTrader: (7)



Default Re: High pass pulling subs

Quote:
Originally Posted by SkizeR View Post
It absolutely will..

Before subsonic is applied..








vs after a 25hz 18db butterworth (like op mentioned) high pass is applied.








The phase shifted just about 45 degrees at the low pass crossover point, aka, added 50 inches worth of group delay considering the 65hz low pass. 45 degrees is more than enough to cause an audible and measurable difference.
45 degrees? Holy crap, what would a more typical 24dB slope do?
gijoe is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #17
DIYMA 500 Club
 
Enthusiast
Join Date: Mar 2008
Location: Aurora, Co
Age: 36
Posts: 6,600

Thanks: 0
Thanked 481 Times in 409 Posts
Rep Power: 373 gijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond repute


iTrader: (7)



Default Re: High pass pulling subs

Quote:
Originally Posted by metanium View Post
While I agree with everything you said here, I'd like to add that "multiple sources" can still mean a single driver. i.e. a single driver can have phase issues or interference between its primary sound (direct) and secondary sound (reflections). Cars is hard.
That is true, but the crossover won't change the relationship between the direct sound and the reflected sound, the reflected sound (at a given frequency) will follow the direct sound by the same amount regardless, unless you move the speaker and change it's distance from the reflective surface.
gijoe is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #18
Upgrade Your Membership!
 
SkizeR's Avatar
 
Prisoner
Join Date: Apr 2011
Location: New York
Posts: 17,358

12V Company:
Apicella Auto Sound
Position:
Janitor

Thanks: 1,126
Thanked 1,776 Times in 1,235 Posts
Rep Power: 455 SkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond repute


iTrader: (42)



Default Re: High pass pulling subs

Quote:
Originally Posted by gijoe View Post
45 degrees? Holy crap, what would a more typical 24dB slope do?
yeah, its pretty significant. if you want to test this, just download the helix software and activate the phase response and play with it. that said, 24db with everything else the same is something like a 65 degree phase shift

SkizeR is online now   Reply With Quote Quick reply to this message
Old 08-14-2019   #19
 
Enthusiast
Join Date: Jul 2015
Location: louisiana
Posts: 1,723

Thanks: 1
Thanked 154 Times in 112 Posts
Rep Power: 70 drop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enough


iTrader: (0)



Default

Quote:
Originally Posted by SkizeR View Post
Quote:
Originally Posted by gijoe View Post
There's no reason that a HPF at the bottom end would cause a phase issue.
It absolutely will..

Before subsonic is applied..








vs after a 25hz 18db butterworth (like op mentioned) high pass is applied.








The phase shifted just about 45 degrees at the low pass crossover point, aka, added 50 inches worth of group delay considering the 65hz low pass. 45 degrees is more than enough to cause an audible and measurable difference.

Sweet! I'm not crazy!
drop1 is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #20
Upgrade Your Membership!
 
SkizeR's Avatar
 
Prisoner
Join Date: Apr 2011
Location: New York
Posts: 17,358

12V Company:
Apicella Auto Sound
Position:
Janitor

Thanks: 1,126
Thanked 1,776 Times in 1,235 Posts
Rep Power: 455 SkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond repute


iTrader: (42)



Default Re: High pass pulling subs

Quote:
Originally Posted by drop1 View Post
Sweet! I'm not crazy!
oh no, lets not get it twisted.. you absolutely are crazy, but what you are hearing is what you guessed

SkizeR is online now   Reply With Quote Quick reply to this message
Old 08-14-2019   #21
 
Enthusiast
Join Date: Jul 2015
Location: louisiana
Posts: 1,723

Thanks: 1
Thanked 154 Times in 112 Posts
Rep Power: 70 drop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enough


iTrader: (0)



Default

Quote:
Originally Posted by SkizeR View Post
Quote:
Originally Posted by drop1 View Post
Sweet! I'm not crazy!
oh no, lets not get it twisted.. you absolutely are crazy, but what you are hearing is what you guessed <img src="https://www.diymobileaudio.com/forum/images/smilies/biggrin.gif" border="0" alt="" title="Big Grin" class="inlineimg" />
Ok I conceded but at least I'm not hearing things that arent there, yet.
drop1 is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #22
 
Enthusiast
Join Date: Jul 2015
Location: louisiana
Posts: 1,723

Thanks: 1
Thanked 154 Times in 112 Posts
Rep Power: 70 drop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enoughdrop1 will become famous soon enough


iTrader: (0)



Default

Now that I'm thinking about it, this could be used to phase align subs for people that dont have phase or ta control.

You could put the filter low and use different slopes to bring the phase around giving a much more coherent blend.
drop1 is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #23
DIYMA 500 Club
 
Truthunter's Avatar
 
Member
Join Date: Jun 2015
Location: Hudson Valley, NY
Age: 43
Posts: 1,456


Thanks: 1,385
Thanked 572 Times in 412 Posts
Rep Power: 70 Truthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enough


iTrader: (7)



Default Re: High pass pulling subs

Is there a way to apply the HP filter to all output channels?... Like on the input side of the DSP? So the phase shift is equal on all drivers.
Truthunter is offline   Reply With Quote Quick reply to this message
Old 08-14-2019   #24
Upgrade Your Membership!
 
SkizeR's Avatar
 
Prisoner
Join Date: Apr 2011
Location: New York
Posts: 17,358

12V Company:
Apicella Auto Sound
Position:
Janitor

Thanks: 1,126
Thanked 1,776 Times in 1,235 Posts
Rep Power: 455 SkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond reputeSkizeR has a reputation beyond repute


iTrader: (42)



Default Re: High pass pulling subs

Quote:
Originally Posted by Truthunter View Post
Is there a way to apply the HP filter to all output channels?... Like on the input side of the DSP? So the phase shift is equal on all drivers.
in the helix? You only get a high pass and a low pass. But you also have first and second order all pass filters to work with as well as delays which should take care of the issue. Or just build your sub setup to not need a subsonic

SkizeR is online now   Reply With Quote Quick reply to this message
The Following User Says Thank You to SkizeR For This Useful Post:
Truthunter (08-14-2019)
Old 08-14-2019   #25
DIYMA 500 Club
 
Truthunter's Avatar
 
Member
Join Date: Jun 2015
Location: Hudson Valley, NY
Age: 43
Posts: 1,456


Thanks: 1,385
Thanked 572 Times in 412 Posts
Rep Power: 70 Truthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enoughTruthunter will become famous soon enough


iTrader: (7)



Default Re: High pass pulling subs

Quote:
Originally Posted by SkizeR View Post
in the helix? You only get a high pass and a low pass. But you also have first and second order all pass filters to work with as well as delays which should take care of the issue. Or just build your sub setup to not need a subsonic
Sure it can be remedied with APFs or adjusting delays but why try mess'n with all that when applying the SS HP on the input (affecting all outputs) is a one and done remedy
Truthunter is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Car Audio | DiyMobileAudio.com | Car Stereo Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live
First name
Last name
Do you work in the 12 Volt industry?
Do you work in the 12 Volt industry?
Youtube Channel
Enter Your Youtube Username, And It will Be Linked To In Your Posts!
12V Industry - Company Name
Your company name.
12V Industry - Your Position
Your position in your company.

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 04:36 PM.


Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Powered by vBadvanced CMPS v3.2.3
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Ad Management by RedTyger

Home | User CP | Members List | New Posts | ITrader | Faq | Post Spy