porper sub adjustment? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**truckdude239** · 02-06-2011, 11:33 AM

i instaled subs in my honda awhile back 2 10 inch 700 watt cheapos http://cgi.ebay.com/LEGACY-LWFX107-6...item35a97b4c86 on evilbay on a 400 wat amp that is older then piss but it still works but never could get them to sound right i am running a sonny head unit with the i pod hooked though the 3.5mm port. but it sounds muffled no matter what i try.

jimmydean · 02-07-2011, 12:28 AM

Does the amp have a crossover built into it? If the subs don't have a filter on them, then they are trying to play notes outside its range. You need a low pass filter or adjust the crossover on the amp to choke out anything above about 200Hz. They should sound tighter.

mongoose · 02-07-2011, 12:30 AM

what kind of box?

**truckdude239** · 02-07-2011, 08:07 AM

sealed box

msgross · 02-07-2011, 08:20 AM

are they made for a sealed or ported box, does it have the right amount of airspace?

I have my subs lower than 200hz even... I use an electronic crossover in my setup...

tubbedII · 02-07-2011, 04:19 PM

A lot things can effect quality, but here's what I do to "tune" my subs:

1. Disconnect all highs (so you only will hear the subs)
2. Ensure the cross over on the amp is set to low pass and any cross over knobs are turned to the middle of thier settings (if you have any of them)
3. Turn the amps gain all the down and do not use any bass boost if available
4. Turn on head unit and set volume to 2/3's to 3/4's of it's capacity, and set Bass/equalizer to the middle of its range (play a CD that you know you like the bass tones of...I tune to a CD rather than radio or mp3)
5. Turn the gain up slowly until it starts to distort/sound bad and back it off a little.

This is to just get the amp to a decent level and still sound clean...there's more fine tuning as the speakers are broken in and you start hearing all frequencies, but if the speakers still sound muffled after this, it could be the box or the components causing it.

*stich626* · 02-22-2011, 04:40 PM

issue #1, Ipod, commpressed music,, they clip the lows and highs when compressing it.

02-07-2011, 12:28 AM	#2
jimmydean Registered User Join Date: May 2005 Location: Beaverton, OR Posts: 3,728	Re: porper sub adjustment? Does the amp have a crossover built into it? If the subs don't have a filter on them, then they are trying to play notes outside its range. You need a low pass filter or adjust the crossover on the amp to choke out anything above about 200Hz. They should sound tighter. __________________ New Project: 1966 LWB C20 Plans: 1/2 ton conversion Dropmember front Dropmember rear Corvette discs Restored raised bed http://67-72chevytrucks.com/vboard/s....php?p=4295210

02-07-2011, 12:30 AM	#3
mongoose Registered User Join Date: Feb 2009 Location: slurrey, bc. Posts: 1,134	Re: porper sub adjustment? what kind of box? __________________ -'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler.

02-07-2011, 08:07 AM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: porper sub adjustment? sealed box __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

02-07-2011, 08:20 AM	#5
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: porper sub adjustment? are they made for a sealed or ported box, does it have the right amount of airspace? I have my subs lower than 200hz even... I use an electronic crossover in my setup... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

02-07-2011, 04:19 PM	#6
tubbedII needs more $$$ Join Date: Mar 2004 Location: Sacramento Posts: 1,936	Re: porper sub adjustment? A lot things can effect quality, but here's what I do to "tune" my subs: 1. Disconnect all highs (so you only will hear the subs) 2. Ensure the cross over on the amp is set to low pass and any cross over knobs are turned to the middle of thier settings (if you have any of them) 3. Turn the amps gain all the down and do not use any bass boost if available 4. Turn on head unit and set volume to 2/3's to 3/4's of it's capacity, and set Bass/equalizer to the middle of its range (play a CD that you know you like the bass tones of...I tune to a CD rather than radio or mp3) 5. Turn the gain up slowly until it starts to distort/sound bad and back it off a little. This is to just get the amp to a decent level and still sound clean...there's more fine tuning as the speakers are broken in and you start hearing all frequencies, but if the speakers still sound muffled after this, it could be the box or the components causing it. __________________ 1970 2wd Blazer

02-06-2011, 11:33 AM	#1
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	porper sub adjustment? i instaled subs in my honda awhile back 2 10 inch 700 watt cheapos http://cgi.ebay.com/LEGACY-LWFX107-6...item35a97b4c86 on evilbay on a 400 wat amp that is older then piss but it still works but never could get them to sound right i am running a sonny head unit with the i pod hooked though the 3.5mm port. but it sounds muffled no matter what i try. __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

02-22-2011, 04:40 PM	#7
stich626 Account Suspended Join Date: Sep 2010 Location: hingham ma Posts: 1,721	Re: porper sub adjustment? issue #1, Ipod, commpressed music,, they clip the lows and highs when compressing it.



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