Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

upgrading c-7 Jensen speakers?
upgrading c-7 Jensen speakers?
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
Thread Tools Search this Thread
Old 19th May 2001, 10:57 PM   #1
partyanimal is offline partyanimal
diyAudio Member
Join Date: May 2001
I have a pair of jensen c-7 speakers (1" tweeter, 2"mid range, and dual 6-1/2" woofers)

Here is what I want to do, since the sounds out of these speakers really sucks, the highs are too harsh and the lows are too weak. So I want to replace both tweeter and the mid range (since they are together) with the Dayton's 1-1/4" silk dome. And then I am going to get a two way Dayton's crossover cross at 2000hz. Now for the bass, I am either going to fill the cabinet, or replace those woofer with dayton's 6-1/2 woofers.

If I do all these upgrade, would it make my speaker more powerfull? I am using these speakers for rap music and club music. My reciever's out put is not that great I am thinking about under 50 watts per channel. And I am using these speakers as two channel stereo mode. Any input would be GREATLY appreciated!!!!
  Reply With Quote
Old 20th May 2001, 09:06 AM   #2
GRollins is offline GRollins  United States
diyAudio Member
Join Date: Feb 2001
Location: Columbia, SC
Your results will be unpredictable. The woofers need to be matched to the cabinet volume (using those Thiele-Small numbers that you frequently see in catalogs) and since you can't reasonably change the drivers themselves, it's the cabinet that has to change. The usual way to go about things is to choose drivers that look like a good match to your needs and to each other, then design a cabinet that will work well with the woofers (and midranges, if they need cabinets of their own--some are totally enclosed, hence ready to fly). So if you've got to change the cabinet to match the woofers, you might as well start from the ground up.
In short--if you're listening to rap, and (presumably) listening at high volumes, I'd say the odds are stacked against you. Not only are you (unless by some wild coincidence your cabinet volume just happens to match what the woofers need) unlikely to get the nice smooth frequency response plot that you see in the charts, it may not play loud enough for you. Will you get sound out? Yes. Would you be happy with it? Maybe. Maybe not.
It's your money, the ball's in your court.
Good luck.

  Reply With Quote
Old 9th January 2008, 11:26 PM   #3
60 is offline 60  United States
diyAudio Member
Join Date: Sep 2007
Send a message via AIM to 60 Send a message via MSN to 60 Send a message via Yahoo to 60
bypassing the caps in the crossovers, with something like these
from apexjr will smooth the highs.

.001 Mfd * 100V Orange Drop Sprague $0.10

  Reply With Quote
Old 9th January 2008, 11:42 PM   #4
gainphile is offline gainphile  Australia
diyAudio Member
gainphile's Avatar
Join Date: Dec 2007
Location: Melbourne the sunny city!
Before doing anything maybe you can enlighten us with the crossover?

I have a pair of jensens which sounds horrible when bought and was clearly due to crossover design. Ferrite core, crappy caps and the frequency was not even correctly crossed. Let alone any fs compensation.

I changed crossover using simple 1rst order using decent caps and aircore inductors and then it sounded fine.

Obviously the ultimate solution was to biamp the thing. see my page below if you want to know more.
  Reply With Quote
Old 10th January 2008, 12:15 AM   #5
Ron E is offline Ron E  United States
diyAudio Member
Ron E's Avatar
Join Date: Jun 2002
Location: USA, MN
Just buy a BR-1 kit and be done with it. You can spend the $ you would have on the extra woofers for a subwoofer.
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


upgrading c-7 Jensen speakers?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sensitivity of Jensen A-12 field coil speakers korneluk Full Range 1 24th March 2008 06:05 PM
ID'ing a pair of Jensen speakers Hass Multi-Way 0 3rd January 2008 06:56 AM
2 Jensen P15-RJ vintage 15" speakers GordonW Swap Meet 2 2nd August 2007 02:17 PM
Help Identifying Jensen Speakers 69stingray Multi-Way 0 27th April 2005 01:46 AM
Upgrading my set with some DIY speakers? Dinobe Multi-Way 8 25th August 2004 08:59 AM

New To Site? Need Help?

All times are GMT. The time now is 03:53 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio