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 24th December 2008, 05:06 PM   #1
cgrums is offline cgrums  United States
diyAudio Member
 
Join Date: Dec 2006
Default First Speakers (Fonkens) Done! Next?

It's been a long time coming but my first speaker build has come to fruition. I finished a pair of the planet10's Fonkens and am very very pleased.

The Fonkens were commissioned by a friend along with an appropriate amp to drive them. Unfortunately the budget didn't allow for the planet10 modified drivers so they're currently stock. The pair is currently running off a 'Bevois Valley' amplifier; a 10W PP EL84 design by Morgan Jones.

Seeing as this is my first 'real' speaker experience I have to say I'm very impressed. I now understand 'imaging' in ways that I have not been able to glean from reading others' reviews. Female vocals, acoustic guitar, you name it, the spatial presentation and detail of the Fonkens with well-recorded material is astounding. The intended recipients room size and musical tastes are going to lend themselves very well to these little guys.

That being said I'm ready to move onto a pair of speakers for myself. I'm currently planning on replacing the pair of KEF bookshelves that I have in my office. I'm hoping to maintain some of the appealing factors of the Fonkens (imaging, detail, that lush mid-range, the 'involvement factor') while hopefully improving in the areas that the Fonken is deficient (bass extension mainly).

My motivations for a different speaker lie in the fact that the Fonkens didn't do particularly well with some genres of my musical tastes. Mainly:

-Heavier Rock: including Prog, Metal and everything in between, lot's of floater, tool and the like.
-Electronica: Mostly Ambient stuff for studying
-Hip-Hop: Atmosphere, Living Legends, Latyrx, Pigeon John and more mainstream stuff.

I like tubes and as such am trying to stay with these more efficient speakers. It's becoming evident in my research that my musical tastes require a larger box. The wife has already vetoed anything really large (taller than me; 66") and the room is smallish (~12'x14')

At this point I'm very interested in the Half Chang....am I making a mistake? Any advice appreciated.
  Reply With Quote
Old 24th December 2008, 05:37 PM   #2
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
OK, I'll be honest here & say that for those kinds of music, FR drivers generally aren't ideal. They do many things well, but the reproduction of large LF transient swings demanded by such material isn't one of them.

However (and it's a major one) it's also true to say the same applies to a lot of modern multiway speakers as well, especially those fashionably slender floorstanders so popular these days. So much for generalisations.

FWIW, if you want to stick with FR drivers, and keeping your prefered material in mind, there's two options that spring to mind. Firstly, stick with a modestly sized unit & support with woofers (not necessarily subs, just woofers) crossed in at ~500Hz. That'll sort out your power / transient handling. Alternatively, go for the largest possible FR driver; at least 8in; you might even want to consider the 10in or 12in Audio Nirvana units. The major issue with the latter though is it's huge (as most FR drivers go) Vas, which demands a big box -somewhat bigger than all but the largest that Commonsenseaudio advocate for it, truth be told.
  Reply With Quote
Old 24th December 2008, 06:06 PM   #3
cgrums is offline cgrums  United States
diyAudio Member
 
Join Date: Dec 2006
Hmmm....seems my surmise is not too far off. Thanks for the response Scottmoose, sorry for the newbish question: in your mention of adding woofers are you speaking of adding woofers to an existing FR cabinet? Or are you speaking of separate boxes all together? (which is how I initially interpreted that) Do you happen to have any suggestions or references for adding in those types of woofers?

I'm stubborn enough to continue along this path for at least another pair or two.....I'm not adverse to experimenting though.
  Reply With Quote
Old 24th December 2008, 06:11 PM   #4
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Well, there is a Fonken design for the FE167, which while it doesn't quite match the midrange magic of the FE127, it certainly adds "authority" to the lower octaves.

It's also quite Wife friendly - with plinth base stands approx 1meter tall, 274mm wide x 238mm deep.


When Dave can get some spare time, he'll update the P-10 website build gallery.
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 24th December 2008, 06:13 PM   #5
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally posted by cgrums
Hmmm....seems my surmise is not too far off. Thanks for the response Scottmoose, sorry for the newbish question: in your mention of adding woofers are you speaking of adding woofers to an existing FR cabinet? Or are you speaking of separate boxes all together? (which is how I initially interpreted that) Do you happen to have any suggestions or references for adding in those types of woofers?

I'm stubborn enough to continue along this path for at least another pair or two.....I'm not adverse to experimenting though.

Depending on the dimensions of the FR enclosure, the woofers can be built as separate cabinets to act as stands.

For example, we've had great success adding a push-push pair of CSS SDX7 woofers per side to Fonken 127s

__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 24th December 2008, 06:30 PM   #6
cgrums is offline cgrums  United States
diyAudio Member
 
Join Date: Dec 2006
Interesting about building them as stands. I could've sworn I saw a post (maybe from Dave) that had a pair of Fonkens on a stand with built in woofers. Neat approach.

Any thoughts on Half Changs with woofers in separate enclosures?
  Reply With Quote
Old 24th December 2008, 07:40 PM   #7
mikje is offline mikje  United States
Soakin' up the Sound!
diyAudio Member
 
mikje's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
Quote:
Originally posted by chrisb



For example, we've had great success adding a push-push pair of CSS SDX7 woofers per side to Fonken 127s


chrisb,
How would the drivers in a push-push be wired? Series, parallel, or one per channel? Thanks.
Mike
__________________
Marantz PM8003 amp, Jolida SJ502A, Squeezebox Touch, MLTL Continuums, DIY Carmichaels (Dayton, TangBand, Vifa); Sony STR5800SD, MarkAudio CHP-70s
  Reply With Quote
Old 24th December 2008, 07:40 PM   #8
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
That'd work too, although TBH, you wouldn't really need the HC cabinet as the woofers would be handling the LF range it's operating in anyway. It's not a huge room, so extension isn't the name of the game so much as transient handling through the 60 - 120Hz region were a lot of energy in rock etc. is concentrated.

FWIW, I'd look to something like an Eminence Delta Pro 12in bass unit in a vented cabinet 30in x 12.75in x 9in (internal HxWxD), Zdriver 12.875in, Zvent 26in, vent 4in diameter x 4in long, line all internal walls with acoustic fiberglass or similar. On top of it you could sit an FE206E, sealed cabinet, same WxD dimensions as above, 20in tall (internal), Zdriver 12in. I'd suggest a 500Hz XO frequency, probably 2nd order. This is isn't a finished design, especially WRT the XO of course -ideally, you'd run the bass end off it's own dedicated plate-amp etc. so you can dial it in to taste, but something on these lines would probably be a start, as rock & electronica really does like a big cone. For interest's sake, the respective FRs of the two cabinets are attached.

Come to think of it, I wouldn't mind hearing Billy Idol's Rebel Yell through a setup like this. It should be 'entertaining' in a room that size.
Attached Images
File Type: gif one suggestion.gif (11.7 KB, 885 views)
  Reply With Quote
Old 24th December 2008, 07:48 PM   #9
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally posted by cgrums
Interesting about building them as stands. I could've sworn I saw a post (maybe from Dave) that had a pair of Fonkens on a stand with built in woofers. Neat approach.
they integrate quite well visually and acoustically; 4 of the SDX7 certainly move some air

Quote:

Any thoughts on Half Changs with woofers in separate enclosures?
it probably wouldn't take much revision to incorporate at a bass driver into the lower void cavity.

Quote:
Originally posted by mikje



chrisb,
How would the drivers in a push-push be wired? Series, parallel, or one per channel? Thanks.
Mike
IIRC, they were parallel for approx 4ohm load per channel, but I'd imagine that provided they're in-phase, whatever works for your amp(s) would be fine.
__________________
you don't really believe everything you think, do you?
community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi
  Reply With Quote
Old 24th December 2008, 08:46 PM   #10
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Fonken167
Attached Images
File Type: jpg fonken167-walnut.jpg (44.7 KB, 1051 views)
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  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
damping for Micro Fonkens? carlseibert Full Range 5 21st July 2008 05:15 AM
Built differences between Guitar Speakers and PA Speakers? agadis PA Systems 7 24th September 2007 08:22 AM
Fonkens and 6W - advisable? ianc13 Full Range 3 21st September 2007 05:27 PM
How would you compare your DIY speakers to commercial speakers? AJ Bertelson Multi-Way 20 28th May 2004 03:20 PM


New To Site? Need Help?

All times are GMT. The time now is 06:36 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