1st project complete

asoprs · 31st December 2005, 12:54 AM

Just finished my first diy project! I made a simple pair of BR cabinets for some fostex 127e's and they sound great.

I thought it would be fun to try and build some full range speakers for my SI t-amp. since I know zip about woodworking, i needed to keep it simple. I used win ISD and settled on an 18 litre box tuned to 62hz. this gives a very slight hump and -3db at about 55hz.

with my plan in place, i ordered the drivers and started to break them in in cardboard boxes. I have to admit i was concerned as they sounded thin and bad.

with my limited skillz, it took me a while to finish the boxes. I don't think any angle is completely square.

Well, i just dropped in the drivers and WOW!. Hey there's bass in there. The driver is very clear and accurate and the bass is much better than I expected. some reggae and hip hop have bass to low for the speaker, but everthing else is OK.

anyway, consider me a convert. I cant believe how good a crap job like mine can sound. I am already planning on building some big tapered pipes to put these drivers in. any suggestions ?

just fired up and wanted to share.

tomjavascript:smilie('

')
smile

Scottmoose · 31st December 2005, 09:33 AM

As you say you want a big tapered pipe, then, assuming you have the rear wall to load it, a reduced version of Terry Cain's Bigger Is Better TQWT (actually a folded corner-backhorn) is on. You'll see the original on the Single Driver Site here:
http://melhuish.org/audio/DIYTQ8.html. However, that's going to be a bit over-large for the smaller FE127E -certainly over-long at any rate. Dimensions I'd use for the for the FE127E assuming 3/4" build material:

Height: not including whatever base you wish to give it, 52 1/4".(I've set 1/4 wave tuning to 65Hz here, fractionally below the Fs of the driver)
Width: 7" (external)
Depth: 10 1/4" (external)
Driver height from base: 29"
Internal baffle terminates 4" from the floor of the cabient and 4" from the front and rear baffle internal walls.

Cheers
Scott

Godzilla · 2nd January 2006, 01:33 AM

http://www.zillaspeak.com/fostex127eStraightPipe.asp

You can also do this... it's a straight pipe with a 127e.

Optimized for the Radio Shack 1354 but the 127e sounds better.

The BIB box Scott specs above seems pretty cool too.

Peace,
Godzilla

31st December 2005, 12:54 AM	#1
asoprs diyAudio Member Join Date: Nov 2005 Location: oxford, ms	1st project complete Just finished my first diy project! I made a simple pair of BR cabinets for some fostex 127e's and they sound great. I thought it would be fun to try and build some full range speakers for my SI t-amp. since I know zip about woodworking, i needed to keep it simple. I used win ISD and settled on an 18 litre box tuned to 62hz. this gives a very slight hump and -3db at about 55hz. with my plan in place, i ordered the drivers and started to break them in in cardboard boxes. I have to admit i was concerned as they sounded thin and bad. with my limited skillz, it took me a while to finish the boxes. I don't think any angle is completely square. Well, i just dropped in the drivers and WOW!. Hey there's bass in there. The driver is very clear and accurate and the bass is much better than I expected. some reggae and hip hop have bass to low for the speaker, but everthing else is OK. anyway, consider me a convert. I cant believe how good a crap job like mine can sound. I am already planning on building some big tapered pipes to put these drivers in. any suggestions ? just fired up and wanted to share. tomjavascript:smilie('') smile

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
First project complete	prezden	Subwoofers	9	15th January 2009 11:14 PM
DIY Project 27 Complete	DeadSpeaker	Swap Meet	1	24th November 2008 08:16 PM
New Omnidirectional Project Complete	dlneubec	Multi-Way	13	10th October 2007 11:50 AM
Asking for PLH complete project	Jay	Pass Labs	4	6th October 2005 12:24 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

31st December 2005, 09:33 AM	#2
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	As you say you want a big tapered pipe, then, assuming you have the rear wall to load it, a reduced version of Terry Cain's Bigger Is Better TQWT (actually a folded corner-backhorn) is on. You'll see the original on the Single Driver Site here: http://melhuish.org/audio/DIYTQ8.html. However, that's going to be a bit over-large for the smaller FE127E -certainly over-long at any rate. Dimensions I'd use for the for the FE127E assuming 3/4" build material: Height: not including whatever base you wish to give it, 52 1/4".(I've set 1/4 wave tuning to 65Hz here, fractionally below the Fs of the driver) Width: 7" (external) Depth: 10 1/4" (external) Driver height from base: 29" Internal baffle terminates 4" from the floor of the cabient and 4" from the front and rear baffle internal walls. Cheers Scott

2nd January 2006, 01:33 AM	#3
Godzilla diyAudio Member Join Date: Nov 2005 Location: New York	http://www.zillaspeak.com/fostex127eStraightPipe.asp You can also do this... it's a straight pipe with a 127e. Optimized for the Radio Shack 1354 but the 127e sounds better. The BIB box Scott specs above seems pretty cool too. Peace, Godzilla