Cerwin Vega 189SC, anyone with experience? - 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 15th September 2004, 12:56 PM   #1
mike34 is offline mike34  Sweden
diyAudio Member
 
Join Date: Sep 2004
Location: Probably at work watching screens
Question Cerwin Vega 189SC, anyone with experience?

Im currently building a sub box with a 189SC (stroker) in it.
Does anyone have any experience with these drivers.
I have a box volume of net volume 210 litre and planned for 2 four inch tubes but the length is not defined yet.
Maybe need 3 tubes?
Data on element is
Fs 22.5
Qts 0.145
Vas 280.
Xmax about 9 mm.

Anyone who want to start a ritual debate about what is recommended ?

/Mikael
  Reply With Quote
Old 15th September 2004, 08:50 PM   #2
Ron E is offline Ron E  United States
diyAudio Member
 
Ron E's Avatar
 
Join Date: Jun 2002
Location: USA, MN
Why so big? I would think 100 liters tuned to 25Hz would be enough for that driver. one 4" port about 12" (30cm) long would work, but would have chuffing trouble at high volumes. 2-4" ports would each have to be 2 feet (60cm) long.

This is kind of an EBS alignment, and would need a sub crossover.
__________________
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan
Armaments, universal debt, and planned obsolescence--those are the three pillars of Western prosperity. Aldous Huxley
  Reply With Quote
Old 16th September 2004, 04:16 AM   #3
urapnes is offline urapnes  United States
diyAudio Member
 
Join Date: Jun 2004
Location: CA
we used to install the strokers in cars. Great speaker, but they always required huge boxes and they honestly need about 1000 (one-thousand) watts to really get cookin.

4.5 cubic feet was not uncommmon for the 18" model, 3.5 cubic feet for teh 15", and 3 feet for the 12" All ported around 30hz
  Reply With Quote
Old 16th September 2004, 08:58 AM   #4
mike34 is offline mike34  Sweden
diyAudio Member
 
Join Date: Sep 2004
Location: Probably at work watching screens
Quote:
Originally posted by Ron E
Why so big? I would think 100 liters tuned to 25Hz would be enough for that driver. one 4" port about 12" (30cm) long would work, but would have chuffing trouble at high volumes. 2-4" ports would each have to be 2 feet (60cm) long.

This is kind of an EBS alignment, and would need a sub crossover.
Well i have tossed and turned about the volume i read books and looked at Cerwin's design and i want the box to play really deep so i picked a rather large volume. Originally it was 270 litre but with bracing, tubes and driver subtracted i ended up with 210 litre.
I tried different softwares with port calculations and i cant get 2 answers that say the same thing so i guess i start with 2 4 inch tubes about 60 in length an work my way up the band until i find a nice roll off and no big humps in the response.
So 25 Hz is recommended ? not lower ?.
Sub crossover is defenitely required, dont want all that lower midrange upper bass roaring all over low pass at 80 maybe or lower, depends on the other speakers ability.

/Mikael
  Reply With Quote
Old 16th September 2004, 09:05 AM   #5
mike34 is offline mike34  Sweden
diyAudio Member
 
Join Date: Sep 2004
Location: Probably at work watching screens
Quote:
Originally posted by urapnes
we used to install the strokers in cars. Great speaker, but they always required huge boxes and they honestly need about 1000 (one-thousand) watts to really get cookin.

4.5 cubic feet was not uncommmon for the 18" model, 3.5 cubic feet for teh 15", and 3 feet for the 12" All ported around 30hz
Ok , you say large boxes, is that for the new produced strokers? The one i'm buliding for is the old PA stroker and its not the same thing, looks the same but there is a difference "they" say.
But much power is required that's true.

/Mikael
  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
Cerwin Vega HED CH-62 Boris Minchev Multi-Way 3 1st June 2008 10:25 PM
Cerwin Vega aperrado Subwoofers 4 1st February 2008 05:52 PM
Cerwin Vega VSW-12 layertone Subwoofers 2 23rd November 2005 02:21 PM
Cerwin Vega 153 EB rickcr42 Subwoofers 4 30th May 2005 11:14 PM
Anyone out there use cerwin vega...... Radik Multi-Way 4 6th February 2003 12:13 AM


New To Site? Need Help?

All times are GMT. The time now is 02:22 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