|
MT121 top end ideas? |
Post Reply 
|
Page <1 3456> |
| Author | |
Deadbeat 
Old Croc 
Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167 |
 Post Options
 Thanks(0)
 Quote Reply
 Posted: 12 March 2009 at 6:09pm |
|
If you want to try phase plugs again, I'd reccomend going bigger with the same rough shape (maybe squash it a bit), turning the throat into a ring and going from there.
|
|
|
Away on extended leave.
|
|
 |
|
|
MikeHunt79
Registered User 
Joined: 12 February 2009 Location: Bristol, UK Status: Offline Points: 352 |
Post Options
Thanks(0)
Quote Reply
Posted: 12 March 2009 at 6:25pm |
|
Great work! Won't the phase plug add mass to the cone if fixed to the driver, or does the cone move independently and the phase plug?
Edited by MikeHunt79 - 12 March 2009 at 6:26pm |
|
|
I'm English, and as such I crave disappointment. I actively seek it out.
|
|
|
|
|
darkmatter
Old Croc
Joined: 26 February 2005 Location: LDN Status: Offline Points: 2419 |
Post Options
Thanks(0)
Quote Reply
Posted: 12 March 2009 at 7:41pm |
|
The dust cap on the cone is removed and the phase plug is attached to the (stationary) magnet. So moving mass ends up smaller if anything.
How did you attach the pole piece mate? Did you remove the whole dust cap or just drill through the middle? I guess just drilling a hole could lead to some odd whistling sounds. Got me thinking, you could actually use it as a good way to conduct heat away from the driver. Edited by darkmatter - 12 March 2009 at 7:43pm |
|
|
|
|
sKs01
Old Croc
Joined: 11 April 2008 Location: sheffield Status: Offline Points: 1744 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 March 2009 at 3:12pm |
|
as im around and we share the same work shop the phase plugged 6" used had a small hole drilled through the center of the dust cap and a long bolt going into a T nut in the back of the phase plug. the main issue that caused the phase plug to get abandoned was that the driver initially used was a skytek and really not in any way a high efficiency mid driver.
|
|
|
You're a big man, but you're in bad shape. With me it's a full time job. Now behave yourself.
|
|
|
|
|
darkmatter
Old Croc
Joined: 26 February 2005 Location: LDN Status: Offline Points: 2419 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 March 2009 at 3:23pm |
|
cheers mate :) i was wondering how the bolt's fixed to the magnet actually i.e. is it glued on or did he drill into the magnet?
|
|
|
|
|
sKs01
Old Croc
Joined: 11 April 2008 Location: sheffield Status: Offline Points: 1744 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 March 2009 at 3:27pm |
|
the bolt was attached on with solder actualy iirc down the (for lack of correct terminology) cooling hole all the way through and out into the phase plug, hope that helps
|
|
|
You're a big man, but you're in bad shape. With me it's a full time job. Now behave yourself.
|
|
|
|
|
studio45
Old Croc
Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3881 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 March 2009 at 3:28pm |
For true! More like a little desktop sub driver! So far its replacement, the Fane Sovereign 6, has not displayed any need for a phase plug - i can flatten its response competely with minimal EQ, and it sounds fine without in the real world. If I did it again, I think i'd go for a "phase disc" as from what I've read they are nearly as effective and obvoiusly easier to make. Just a disc of MDF of an appropriate size, with some shaping on its rear side to match the dustcap and its front edge rounded over.
|
|
|
Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
|
|
|
|
|
studio45
Old Croc
Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3881 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 March 2009 at 3:29pm |
|
oh it was glued on. not a good solution, it broke off pretty easily. couldn't solder it on, not enough heat in me iron - would have needed a little welder and probably have demagnetised the driver in the process
|
|
|
Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
|
|
|
|
|
darkmatter
Old Croc
Joined: 26 February 2005 Location: LDN Status: Offline Points: 2419 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 March 2009 at 4:47pm |
|
cheers, think i'll just mount mine in the horn's throat instead then. bit risky drilling into my B&Cs unless i know im gonna be able to do a proper job!
|
|
|
|
|
MikeHunt79
Registered User
Joined: 12 February 2009 Location: Bristol, UK Status: Offline Points: 352 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 March 2009 at 1:38am |
|
Have you guys seen the Danley unity horn? Looks pretty good, 4 x 6" drivers and shared the horn with a 1" comp I think.
I was thinking a version with 2 x 6" drivers would be good, horizontally mounted for norrower vertical dispersion... |
|
|
I'm English, and as such I crave disappointment. I actively seek it out.
|
|
|
|
|
Deadbeat
Old Croc
Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 March 2009 at 10:52am |
|
The Unity is a special type of horn. He's got a line of improved ones called Synergies. As you know, they work on 1/4 WL coupling between sources...
I wouldn't suggest it for this application. Mounting the drivers the other way wouldn't do a thing really either. If you wanted to build one, start from scratch. |
|
|
Away on extended leave.
|
|
|
|
|
MikeHunt79
Registered User
Joined: 12 February 2009 Location: Bristol, UK Status: Offline Points: 352 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 March 2009 at 11:45pm |
Was just throwing it out there.. I think you're right tho going from scratch would give better results than a copy. I wasn't going to go for a straight copy, I was going to try experimenting with similar way of using 6" drivers in the same horn as the comp. I don't have the drivers or comps yet, or any experience of AKABAK (yet), so I'm a long way off!  I think I'll have to get a a feel of akabak, and see how well it works out, but I have a feeling it would be easier just to have the 6" driver and 1" comp in seperate horns.  Edited by MikeHunt79 - 15 March 2009 at 11:46pm |
|
|
I'm English, and as such I crave disappointment. I actively seek it out.
|
|
|
|
|
Post Reply
|
Page <1 3456> |
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
sKs01 wrote: