"The J'OB.". baffled... - 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 28th December 2007, 10:22 PM   #1
Andy G is offline Andy G  Australia
diyAudio Member
 
Andy G's Avatar
 
Join Date: Apr 2002
Location: Newcastle, Australia
Default "The J'OB.". baffled...

Baffles are cut for my experimental all Jaycar, all open baffle (hence J'OB).. seen lying here testing the driver fitting.

Mids are Jaycar Response 6", tweeter is Response 1"
Bass drivers are some very used Jaycar 15" PA drivers. I have had these unused for a few years now, and this seemed a way to try and use them.

The mids will have a slight U-frame, and the Bass will angled forward for balance, and have wings attached somehow to widen the baffle.
I will design it in such a way that I can convert to a vented cabinet if necessary.

For those interested in the round-overs, they are 42mm solid timber moldings (wallet says ouch!)


http://members.optusnet.com.au/~gradds55/Job1.jpg
  Reply With Quote
Old 29th December 2007, 12:22 AM   #2
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
I misread the first part, and thought you'd named you speakers after a former Qld Premier.

Where did you get the mouldings? I've been looking for some, even MDF.
  Reply With Quote
Old 29th December 2007, 12:35 AM   #3
Andy G is offline Andy G  Australia
diyAudio Member
 
Andy G's Avatar
 
Join Date: Apr 2002
Location: Newcastle, Australia
Quote:
Originally posted by Brett
I misread the first part, and thought you'd named you speakers after a former Qld Premier.

Where did you get the mouldings? I've been looking for some, even MDF.
Good old Jo.. nah.. I don't think so

Local timberyard Wes Hughes stocks the moldings.
They have a spindle mill and will do special orders at even bigger radii.
  Reply With Quote
Old 29th December 2007, 05:35 AM   #4
diyAudio Member
 
Join Date: Feb 2002
Location: Western Sydney
Nice work, as always (loved the 'Rocket'), What xover freqs & slopes are you using?

(I think Aus projects using local versions of the 'Parts express' & 'Madisound' cheapo drivers are a good idea, not everyone can access/afford/appreciate Scandinavian or other esoteric drivers...)

cheers,
Pete McK
__________________
Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
  Reply With Quote
Old 29th December 2007, 05:42 AM   #5
Andy G is offline Andy G  Australia
diyAudio Member
 
Andy G's Avatar
 
Join Date: Apr 2002
Location: Newcastle, Australia
Quote:
Originally posted by PeteMcK
Nice work, as always (loved the 'Rocket'), What xover freqs & slopes are you using?

(I think Aus projects using local versions of the 'Parts express' & 'Madisound' cheapo drivers are a good idea, not everyone can access/afford/appreciate Scandinavian or other esoteric drivers...)

cheers,
Pete McK
Thanks Pete.

The Rocket uses a linked 1st order series crossover, at about 200 and 2200, same as "Blackwood", The design sorta sets those points for you. I guess this one will be similar but a bit higher on the tweeter, it isn't a TDFC !.

Actually , I find the bass from the Jaycar 10" and 8" to be VERY good. The 6" doesn't have a bad midrange either !
If my info is correct they have been discontinued, but there are still quite a lot left at the moment.

Vague rumours of a new range of Jaycar drivers at some stage. Guess we will find out at some stage in the future !
  Reply With Quote
Old 29th December 2007, 06:49 AM   #6
diyAudio Member
 
Join Date: Aug 2006
Hi guys, Happy NY!

G'Day Andy,
I'm having trouble keeping up with so many frequent designs! The pace is amazing! Ditto re Rocket, and Sauron, Juke , Gumby .....etc

"I will design it in such a way that I can convert to a vented cabinet if necessary."..... Oh NO! haha, buy 2 more woofers?

I thought the rounded over baffle for the woofer looked kinda narrow? I have no idea of course, then I read about the 'wings'... I guess I'll just be patient and see how it unfolds.

OT...Santa was mean , no 4X Eminence Alpha 15's and 2X Scan D3806/8200 haha
  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
What makes an amplifier "bright", "warm", or "neutral"? JohnS Solid State 51 13th December 2009 06:42 PM
"Void free" or "no core gaps" plywood rick57 Multi-Way 6 14th March 2007 01:09 PM
Some final pics of "Stacks" revisited and "Askew" with stand Andy G Multi-Way 2 3rd February 2005 06:07 AM
5" enclosed or 6.5" open-baffled coolkhoa Multi-Way 6 17th May 2004 03:18 AM
Anyone used Scan-Speak's "Flow Resistors" or "Aperiodic Vents"? Ignite Multi-Way 3 18th November 2001 08:42 AM


New To Site? Need Help?

All times are GMT. The time now is 03:47 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