Full ranger and a woofer question - Page 3 - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 22nd February 2008, 01:47 PM   #21
JandG is offline JandG  United States
diyAudio Member
 
Join Date: Jan 2005
Location: Washington State
Bluto,
By looking at these pictured, one would think echo & all that. Great thing is that is not the case & stage is where I like it, slightly back of system plane. Heighth is correct & image is more detailed that any commercial speaker to date I have owned, much better than the ET-8a's I a/b with. Also intresting is I can almost gurantee distortion level of driver is way down with a guide. I would not hesitate to bring these ugly bastards to a diy event . The little Seas driver seems ideal in construction for OB w/ almost no earlly rear reflection points of basket & the way the spider is constructed which is wide open to air space. Coupling point between wood guides & smal baffle is perfect & smooth w/ 3/4" roundover on rear of baffle openings. I also experimented with alighnment of drivers in OB, & conclude it is the only way to go. The only downside percieved so far is your listening sweet spot is fairly small compared to planars & normal OB. Large guide is 12" wide at openeing & small guide is 7" at opening over a 2" FR driver of superb quality. While it is nice to try & run these little fullranger wide open without XO, which I allways try, but distortion levels do go up fast. 22w of DHT into these gets good spl w/ no fatigue. My next OB's for differant room will have multiple 15" & bi-amped, which I usually allways do. & then similar set up for mid & tweeter. I have Steve B. tube active XO PCB to fill & make PS for & will try these next round. Since I run up to 500-600 a bad active XO is a seriouse no-no. I have tried & did not like it at all. Fine for 70hz down but for 70hz up it is not for me. I can hear crappy XO output sections all to easy.
J & G
  Reply With Quote
Old 23rd February 2008, 07:31 PM   #22
ttan98 is online now ttan98  Australia
diyAudio Member
 
Join Date: Apr 2006
Location: Melb
JandG,

"I also experimented with alighnment of drivers in OB, & conclude it is the only way to go."

how do you align the speakers? can you explain further?

thanks
  Reply With Quote
Old 24th February 2008, 01:05 PM   #23
JandG is offline JandG  United States
diyAudio Member
 
Join Date: Jan 2005
Location: Washington State
Not to scientific way, I just get the drivers acoustically alighned as best I can. I am sure I were to go for perfect someone would smash the theory anyway. But I have em close enough for the testing. Kinda like trying to put a ST way ahead of all other drivers,, doesn't wotk very well IMO. I have tested & is all to audible. Now that I have seen the big bass OB thread, I am thinking way to hard. That is something I need to persue for my larger room & try to implement the little seas into the mix, horn loaded & open back as shown in that thread.
  Reply With Quote
Old 24th February 2008, 11:56 PM   #24
diyAudio Member
 
audiophile36's Avatar
 
Join Date: Aug 2006
Location: South Euclid,Ohio
Quote:
Originally posted by Scottmoose
Don't do that! You can do way better, sonically, which is what it's all about, right?

If you're struggling yourself, I'm sure there'll be somebody of a DIY persuasion nearby who can cut the holes for you, for a couple of his favoured beverages. Or you could grab a local cabinet-maker or similar -they're not going to charge much for cutting a couple of holes & certainly not more than it'd cost to buy a couple of PartsExpress cabinets. As you say you really want to go all OB, it'd be silly to let something as simple as cutting a couple of holes get in your way.
Hello Scott have you listened to the A-N Super 12's in open baffle yet? I remember you stating you haven't found a particular use for the Super 12's in a previous thread.I was thinking of just ordering them and mounting them in some really nice large baffles.
__________________
If it sounds good it is good!
  Reply With Quote
Old 25th February 2008, 07:25 AM   #25
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
No I haven't, and the likelihood of me ever hearing them is about zero, squared. OB is about the only practical use I can think of for them though, unless you have room for a pair of downright gigantic cabinets in your room. I imagine they'd sound pretty decent, run like this, although Q is a bit low, so bass won't be the strongest. Get them in a baffle near the floor & hope that you pick up some room-gain is probably the way forward -in fairness, something similar to the baffle on the CSA site.
__________________
Community site www.frugal-horn.com Commercial site www.wodendesign.com
  Reply With Quote
Old 25th February 2008, 07:54 AM   #26
diyAudio Member
 
audiophile36's Avatar
 
Join Date: Aug 2006
Location: South Euclid,Ohio
Thanks Scott,
I talked to the guy at CSA about the 291.389 ltr cabinets required for the drivers and he told me the program specs are pretty much worthless...I figure with a qts of 0.487 they seem ok for OB,though he told me he didn't like OB...he also told me that I could get great results with a BR cab with as little as 76 ltrs. I figured out how to cut large holes and added an 8" woofer to my baffles with my Fostex Fe126e...no crossover and they really sound nice.[IMG]Click the image to open in full size.[/IMG]
__________________
If it sounds good it is good!
  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
Fostex full-ranger for in wall use :-) sharpi31 Full Range 4 5th March 2008 10:46 AM
not really a full ranger Nanook Full Range 3 3rd April 2006 08:20 PM
Which full ranger for 3L sealed? noobsta Full Range 3 20th January 2006 12:37 PM
adding a woofer driver to a full ranger paba Full Range 7 21st April 2005 06:55 AM
Beyma 5MP60/N as a full ranger? Elias Full Range 2 25th November 2004 11:37 AM


New To Site? Need Help?

All times are GMT. The time now is 02:09 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