A great post proving poly fill works! - Page 2 - Realm of Excursion



Enclosures Woodworking & fiberglassing

Reply
Old 02-04-2013   #26 (permalink)
0 dB
 
Join Date: Feb 2013
Posts: 7
Rep Power: 0
slizoth is in the red -  Must have upset some poeple...
Default Re: A great post proving poly fill works!

Very cool pictures, like a mini DIY.
slizoth is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-26-2013   #27 (permalink)
0 dB
 
Join Date: Feb 2013
Posts: 15
Rep Power: 0
Spl150db is in the red -  Must have upset some poeple...
Default Re: A great post proving poly fill works!

Alot of Teddy Bears have died so you could achive your desired bass
Spl150db is offline   Reply With Quote Quick reply to this message
Old 03-20-2013   #28 (permalink)
0 dB
 
Join Date: Mar 2013
Posts: 11
Rep Power: 0
esbyrd is in the red -  Must have upset some poeple...
Default Re: A great post proving poly fill works!

hmmm so should i believe the article or the post with a trail that failed?
esbyrd is offline   Reply With Quote Quick reply to this message
 
Old 03-20-2013   #29 (permalink)
170 dB
 
profundus-sanus's Avatar
 
Join Date: Jan 2007
Location: wilmington, nc
Age: 34
Posts: 7,447
Rep Power: 558
profundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossibleprofundus-sanus has the highest rating we can give - To make it this far is  nearly impossible
Default Re: A great post proving poly fill works!

Quote:
Originally Posted by KingPen View Post
Ok so the latest on the poly fill testing.

Sadly I don't have a TL right now so I had to guesstimate the effects by ear. I realize its not the most accurate method but with this test if you cant hear the effects to the ear then it doesn't matter anyway.

Using this 6th order I just built I wanted to lower the tuning of the 31hz side. Using this chart Polyfill Chart from the enclosure sticky I started by placing 32 oz of poly in my 2.2 cu ft enclosure. I couldn't notice much if any difference. If it had worked as it did in the chart I should have had a similar perceived increase as they did which was around 29%. 29% increase on my 2.2 box would have made it 2.8 and tuned to 27.5hz instead of 31hz.

Taking it a step further you notice in the chart he has an increase in enclosure size up to about a 1.5 pound to 1 net foot ratio. Going off of this I increased the amount of poly to 50oz. Thats 1.42 pounds of poly per net foot of my enclosure. When he tested a 1.4 to 1 ratio he saw a 43% increase in enclosure size. If that were the case in my box I should have had a net size of 3.15 cu ft and a tuning of 26hz. Very simply I didn't have that result.

Using my handy access panel I tested no fill at all and up to 50oz.

Using test tones I sought to find when sound became noticeable and if there was any change at all.

In both cases (0 fill and 50oz) the tuning was not lowered at all.

-A very light humming became noticeable at 27 hz. Very light, not real bass by any stretch.
-At 30hz the bass was reasonably noticeable but not loud at all.
-Real bass started in the Car at 32hz.
-More importantly, output around 34-37hz suffered in the box when it had poly. My guesstimate was proximately a 3-4 db loss at that frequency.
-There was no perceived increase at any of the lower frequencies.

My conclusion, it doesn't work, or at least doesn't work in a parallel 6th order.
that sounds more like your having cancellation issues than proving the poly fill doesn't work.

i really don't like the idea of using it anywhere other than a sealed chamber.
__________________


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

profundus-sanus is offline   Reply With Quote Quick reply to this message
Old 03-20-2013   #30 (permalink)
150 dB
 
KingPen's Avatar
 
Join Date: May 2012
Location: Cincinnati, OH
Posts: 2,023
Rep Power: 244
KingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossibleKingPen has the highest rating we can give - To make it this far is  nearly impossible
Default Re: A great post proving poly fill works!

Quote:
Originally Posted by esbyrd View Post
hmmm so should i believe the article or the post with a trail that failed?
Poly is $10 just try it and if u don't like it add some stuffing to your couch like I did.

Quote:
Originally Posted by profundus-sanus View Post
that sounds more like your having cancellation issues than proving the poly fill doesn't work.

i really don't like the idea of using it anywhere other than a sealed chamber.
I don't think that's it personally but before to long I will be doing some real testing with my meter so we will know for sure
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
KingPen is offline   Reply With Quote Quick reply to this message
Old 12-29-2015   #31 (permalink)
120 dB
 
PDXooo's Avatar
 
Join Date: Oct 2012
Location: Trinidad(& Tobago), West Indies(the Caribbean)...
Age: 44
Posts: 36
Rep Power: 0
PDXooo is in the red -  Must have upset some poeple...
Default Re: A great post proving poly fill works!

Quote:
Originally Posted by armykyle1 View Post
don't use it.... it retains a lot of heat around the driver....
Huh? Wha?

My JBL GTO1214 sub(in a self made .7cu\ft sealed enclosure)... on Twitpic

Ever since I was educated on thermal compression... #FearNot #Adapt

PS: JBL GTO1214 - stuffed - .7cuft - sealed...
__________________
Keep it positive...
PDXooo is offline   Reply With Quote Quick reply to this message

Reply

  Realm of Excursion » Car Audio Discussion » Enclosures

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Realm of Excursion 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:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
how much volume does poly-fill add? bigwink05 The "No Question is Dumb" Forum 7 05-19-2011 06:11 PM
Poly fill??? nyankees278 Enclosures 6 12-12-2007 07:25 PM
How do u apply Poly Fill to ported box? Spinnaz Enclosures 7 06-29-2007 11:54 PM
Sealed box and poly fill help needed... mrgoldteeth14k Enclosures 11 09-29-2006 11:23 PM
poly fill scionxb Enclosures 12 03-18-2006 12:48 PM

» Amps
A/d/s/
Advent
Alphasonik
Alpine
American Bass
ARC Audio
Atomic
Audio Art
Audio Gods
Audiobahn
Audiocontrol
Audiopipe
Audison
Aura
Autotek
Avionixx
Bazooka
Beyma
Blaupunkt
Boss
Boston Acoustics
Bravox
Cadence
Cascade (CAE)
CDT Audio
Cerwin Vega
Clarion
Clif Designs
Concept
Coustic
Critical Mass
Crossfire
Crunch
DB Drive
DC Audio
DC Power
DEI
Denon
Diabolo
Diamond
Digital Designs
Directed
DLS
Dual
DYnamat
Dynaudio
Earthquake
Eclipse
Elemental Designs
ESX
Eton
Farenheit
Fi Car Audio
Focal
Fusion
Genesis
Ground Zero
Hafler
Helix
Hertz
Hifonics
Hushmat
Image Dynamics
Infinity
Interfire
JBL
Jensen
JL Audio
JVC
Kenwood
Kicker
Knu Konceptz
Kole Audio
Kove Audio
Lanzar
Lightning Audio
Linear Power
MA Audio
Magnat
Marantz
Massive Audio
MB Quart
McIntosh
Memphis
Metra
MMATS
Mobile Authority
Morel
MTX
Nakamichi
Niche Audio
O2 Audio
Ohio Generator
Optima
Orion
Oxygen Audio
OZ Audio
PG Audio
Phase Linear
Phoenix Gold
Pioneer
Polk
Power Acoustik
Powerbass
Powermaster
Precision Power
Profile
Pyle
Pyramid
RadioShack
Rainbow
Rampage
RE AUdio
Rockford Fosgate
Scanspeak
Scosche
Seas
Sony
soundstream
Sparkomatic
SPL Dynamics
Stinger
Sundown Audio
Swiss Audio
Targa
TC Sounds
TREO Engineering
TRU
Tsunami
Ultimate
US Acoustics
US Amps
Velodyne
Vifa
Viper
Visonik
Xtant
Zapco
Zed Audio
Powered by vBadvanced CMPS v3.2.3

Links
Buy car audio
buy & sell car audio stereo equipment. Purchase used amps, subs speakers for sale and buy classified listings for 12 volt amplifier and subwoofer sales forum
Car Audio Forum
Buy car audio, Sell mobile audio, Wholesale 12 volt, automotive community forum, sub sub woofer, speakers, amplifier, amps, car audio forum
DIYMA
diymobileaudio.com is the DIY car audio install forum for automotive quality and spl stereo bass. 12 volt audio installation wholesalers buy amps, subs, double din car audio head unit electronics and ipod blue tooth car alarms at discounted prices
Sound Deadener
Sound deadening, vibration damper, cld tile, damping mat. Anti vibration pads for automotive insualtion damping, CDL mat, sound damping, noise killer, vibration damper sound deadener


All times are GMT -7. The time now is 05:51 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0 ©2011, Crawlability, Inc.
ABMM Powered by Syrian Medical Society
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.