Too much boom - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

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 5th April 2013, 05:37 AM   #1
diyAudio Member
 
Join Date: Mar 2013
Location: Sydney Australia
Default Too much boom

I have a pair of speakers that are boomy, sometimes slightly mushy, and at other times nice rich bass. They lack clearness in the highs. The tweeters have been replaced at some stage. Probably blew them. These are a cheaper range of speakers and probably cheapened all down the line.
Fleetwood SR88.3 speakers


Internal speaker box size 9 x 9 x 36


125 tweeter
150mm mid
220mm woofer
220mm woofer
I was thinking of enlarging the boxes by a third, changing the shape so that all sides are different, adding bracing, and an additional port. Would this be the way to go?
  Reply With Quote
Old 5th April 2013, 06:32 AM   #2
diyAudio Member
 
Richard Ellis's Avatar
 
Join Date: Sep 2006
Location: Mar del Plata, a BIG seasonal getaway city, can see the Ocean from our residence.
I did a simple search on "Fleetwood speakers" & found out they are 'marketed' out of the back of some flunkies van or car.....the pitch goes "We have an overstock of these speakers & the Boss said we need to move them NOW". There is no information who builds these....It's all on the sly.
As it turns out....I'd bet they are ultra-cheap on build quality, Chinese made (No China slam here!).......The drivers are probably all mis-matched & any cross-overs inside completely wrong. However.......You may have something here which can be reworked......perhaps changing key drivers......reinforcing the enclosure....or ???? Can you take some pictures of them? Knock on the sides of them as if your knocking on someones door....do they sound hollow, do they sound solid? Often times "they" build very poor cabinets so not as to spend much money creating them.


__________________________________________________ __Rick.......
  Reply With Quote
Old 5th April 2013, 07:12 AM   #3
Starre is offline Starre  Sweden
diyAudio Member
 
Join Date: Aug 2011
Location: Stockholm
Try to get rid of them and build a well known design youself (troels gravesen or similar).
  Reply With Quote
Old 5th April 2013, 09:55 AM   #4
diyAudio Member
 
Join Date: Mar 2013
Location: Sydney Australia
When you knock on them they do have a decidely hollow ring and they sound as if they are not dampened.
The problem I have with passing them on is knowing someone else is going to be disappointed. I would like to start out using these speakers to gain some knowledge whilst modifying them in the process.
So already, I need to modify the cabinets using a hardwood ply, battens to firm up, and damping material.
Any other suggestions?
  Reply With Quote
Old 5th April 2013, 02:23 PM   #5
diyAudio Member
 
Join Date: May 2010
Location: MN
Way too much effort for a white van speaker. If you were getting started designing crossovers from measurements, you could use it to learn how to do that, but I wouldn't bother trying to upgrade the enclosure. Stuff the port with insulation to reduce the boom.
  Reply With Quote
Old 5th April 2013, 02:59 PM   #6
diyAudio Member
 
Join Date: May 2010
Location: Skokie Il
Same scam here in Chicago. They tried me a couple times when I worked downtown. White van and everything. I told them to f-off you scamming s-o-bs I'm calling the cops RIGHT NOW. They left real fast.
  Reply With Quote
Old 5th April 2013, 03:13 PM   #7
diyAudio Member
 
Join Date: May 2010
Location: Skokie Il
The reason these "white van" speakers are so terrible is not because they're so cheap, but because they are "designed" using an ad-hoc engineering process. They just slap any cheap stuff together in a random process. Even cheap drivers can be optimised to produce acceptable sound with limited frequency range and dynamic response. Some commercial manufacturers (like Bose) employ this method. (The "acoustimass" system is a glaring exception; there is no way to make it sound even barely acceptable. )
  Reply With Quote
Old 5th April 2013, 09:08 PM   #8
diyAudio Member
 
Join Date: Mar 2013
Location: Sydney Australia
Okay I will get rid of them, cut my loss, somethings are not worth the trouble, eh? Thanks all
  Reply With Quote
Old 5th April 2013, 10:17 PM   #9
diyAudio Member
 
Dave1027's Avatar
 
Join Date: Mar 2011
Quote:
Originally Posted by Richard Ellis View Post
I did a simple search on "Fleetwood speakers" & found out they are 'marketed' out of the back of some flunkies van or car.........
Instead of a white van they use an old Cadillac Fleetwood, hence the name.
  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
help with baby boom prezden Class D 7 8th October 2012 06:53 AM
boom box 60ndown Everything Else 2 29th June 2011 04:07 PM
trick behind the boom box ravslanka Subwoofers 13 17th January 2009 10:46 PM
best boom for the buck? peace brainerd Subwoofers 10 15th December 2005 09:56 PM
R/Boom correction timolien Multi-Way 1 7th July 2003 02:38 PM


New To Site? Need Help?

All times are GMT. The time now is 06:05 AM.


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