$7 open baffles...

planet10 · 13th April 2005, 06:29 AM

Chris, Scott & I got together last Saturday with the prime purpose of cleaning up the "recycle facility" a bit, listen & tweak the FE127 prototypes, and to make an approximation of an RH84.

During clean-up Chris wanted to toss a set of unual shaped "wings" i had collected off the side of the road, to which i said i would use them for open baffles, then he asked when would i ever get at it, so i grabbed a set of vintage foster 6" with whizzer cones and tasked Scott to build them... which he did on the back of his truck.

I got them upstairs into the main system today (had to sell the drivers in what i was listening too after Scott took the bi-pole 40-1197 ML-Voigts away). These are quite respectable with a ton of room for tweakage -- including removing extraneous hardware that came with the baffles, actually cleaning them, making a better leg, and of course tweaking the driver and how it is mounted. I threw the BSC circuit from my blue & yellow Frugal-phile(tm) specials on them for a bit of midband suppression.

Looking at the baffles, i'm guessing they were actually partitions for some irregular shaped conveyance, perhaps an airplane or a mobile living facility. An atractive shape never-the-less.

I've a ton of the drivers i chose -- i score every pair of the distinctive Lloyds boxes these come out of (about 1 in 4 yeilds a pr that are an alnico variation). I typically pair $7/pr for these (5.7 USD/4.4 Euro). All other bits are salvage that was laying around and the baffles were on the side of the road (i got a couple loads as the guy was cleaning out a workshop).

dave

planet10 · 13th April 2005, 06:30 AM

oops... the pictures... in the system

planet10 · 13th April 2005, 06:31 AM

zoom in on a single speaker

planet10 · 13th April 2005, 06:32 AM

and a close up of the driver (i have to scallop out the back of the hole (i'll also rebate the front to flush mount them).

chrisb · 13th April 2005, 06:18 PM

how do the OB's like the extra horsepower of the Jolida?

SY · 13th April 2005, 06:25 PM

Classy piece of scrounging there! What does the driver's impedance curve look like?

BTW, it's a pleasure to see someone's living room that looks like mine.

planet10 · 13th April 2005, 07:02 PM

Quote:

Originally posted by chrisb
how do the OB's like the extra horsepower of the Jolida?

Officially the Jolida has less power than the Onkyo, but sounds WAY better -- a good thing since a single output tube costs more than the whole receiver

dave

planet10 · 13th April 2005, 07:04 PM

Quote:

Originally posted by SY
What does the driver's impedance curve look like?

attached

Quote:

BTW, it's a pleasure to see someone's living room that looks like mine.

good thing it was cleaned up... no static fancy-pancy showplace this house

dave

jleaman · 13th April 2005, 08:32 PM

Id like to get my speakers out there and test them now. Turn them up let them play. Then after take each driver out and mesure them : O )

EC8010 · 14th April 2005, 12:34 PM

I've just flogged through this thread and haven't seen any mention of how the baffles sound!

(Nice cat, though.)

13th April 2005, 06:29 AM	#1
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	$7 open baffles... Chris, Scott & I got together last Saturday with the prime purpose of cleaning up the "recycle facility" a bit, listen & tweak the FE127 prototypes, and to make an approximation of an RH84. During clean-up Chris wanted to toss a set of unual shaped "wings" i had collected off the side of the road, to which i said i would use them for open baffles, then he asked when would i ever get at it, so i grabbed a set of vintage foster 6" with whizzer cones and tasked Scott to build them... which he did on the back of his truck. I got them upstairs into the main system today (had to sell the drivers in what i was listening too after Scott took the bi-pole 40-1197 ML-Voigts away). These are quite respectable with a ton of room for tweakage -- including removing extraneous hardware that came with the baffles, actually cleaning them, making a better leg, and of course tweaking the driver and how it is mounted. I threw the BSC circuit from my blue & yellow Frugal-phile(tm) specials on them for a bit of midband suppression. Looking at the baffles, i'm guessing they were actually partitions for some irregular shaped conveyance, perhaps an airplane or a mobile living facility. An atractive shape never-the-less. I've a ton of the drivers i chose -- i score every pair of the distinctive Lloyds boxes these come out of (about 1 in 4 yeilds a pr that are an alnico variation). I typically pair $7/pr for these (5.7 USD/4.4 Euro). All other bits are salvage that was laying around and the baffles were on the side of the road (i got a couple loads as the guy was cleaning out a workshop). dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

13th April 2005, 06:18 PM	#5
chrisb diyAudio Member Join Date: Aug 2002 Location: victoria BC	power hunger how do the OB's like the extra horsepower of the Jolida?

13th April 2005, 06:25 PM	#6
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	Classy piece of scrounging there! What does the driver's impedance curve look like? BTW, it's a pleasure to see someone's living room that looks like mine. __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

14th April 2005, 12:34 PM	#10
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	I've just flogged through this thread and haven't seen any mention of how the baffles sound! (Nice cat, though.) __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

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13th April 2005, 08:32 PM	#9
jleaman Banned Join Date: Apr 2002	Id like to get my speakers out there and test them now. Turn them up let them play. Then after take each driver out and mesure them : O )

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