one Fonken down, one to go...

cjkpkg · 12th September 2009, 11:24 PM

I am building a pair of fonkens thanks to planet10 hi fi with Fostex FE127E drivers. I have almost finished one cabinet at least to the point where I can hook it up and see what it sounds like. I must say that I am very impressed. On the other channel is a Polk M4.5 with a 6.5" driver and a tweeter. The Fonken has a distinctive warmer sound that impresses me. The bass seems to equal that of the polk. I do have a BSC hooked up at the moment for about 2dB correction.

I can only imagine what they will sound like when the cabinet is totally finished.

Please remember that this is just a temporary hookup...

cjkpkg · 14th September 2009, 12:23 AM

OK,

I have both cabinets to a point where I have them hooked up. I have the BSC hooked up and the backs have the the terminal blocks installed. The back panels, however, are not glued up yet.

I must say that this little cabinet/driver combo is awesome. The bass definitely outperforms my Polk M4.5's. Probably get even better once the backs are sealed.

Next up, maybe some towers...

Glowbug · 14th September 2009, 01:21 AM

Looking good

chrisb · 14th September 2009, 05:30 PM

these will sound best( i.e. soundstage/imaging) oriented vertically, and not within a bookshelf (i.e. stand-mounted at least 1.5-2 ft from any side or rear wall boundaries)

cjkpkg · 14th September 2009, 08:38 PM

I will have to see if I can drop the shelves down enough to rotate them up...I am at SWMBO's mercy - and lucky I got this far...

cjkpkg · 24th September 2009, 04:04 AM

Well, one is really "down" now. I am in the final stages of a 3886 chipamp and everything checked out before I hooked the speakers up. Apparently there was one resistor that either broke loose somehow when I was jostling everything around or clamping the heat sink in place...anyways...the left channel started playing beautiful music through the fonken. Went to connect the right channel and snap crackle pop...wasn't enough to blow the fuse but enough to fry the driver. Crap!

Fixed the resistor problem and been listening with my old speakers for the last hour and a half and it sounds great. Running an Aikido tube preamp into either a Tubelab SimpleSE or this new LM3886 chipamp.

chrisb · 24th September 2009, 07:01 PM

Quote:

Originally Posted by cjkpkg

Well, one is really "down" now. I am in the final stages of a 3886 chipamp and everything checked out before I hooked the speakers up. Apparently there was one resistor that either broke loose somehow when I was jostling everything around or clamping the heat sink in place...anyways...the left channel started playing beautiful music through the fonken. Went to connect the right channel and snap crackle pop...wasn't enough to blow the fuse but enough to fry the driver. Crap!

Fixed the resistor problem and been listening with my old speakers for the last hour and a half and it sounds great. Running an Aikido tube preamp into either a Tubelab SimpleSE or this new LM3886 chipamp.

ouch - been there too - yup, part of the thrill of DIY SS amps -it doesn't take even all of the DC supply rail across the speaker outputs to let the smoke out of a lot of the higher efficiency drivers.

cjkpkg · 25th September 2009, 02:24 AM

heck...at least it was the one with the dented dustcap

got my ship notice from madisound today...be back in business in a couple days.

12th September 2009, 11:24 PM	#1
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	one Fonken down, one to go... I am building a pair of fonkens thanks to planet10 hi fi with Fostex FE127E drivers. I have almost finished one cabinet at least to the point where I can hook it up and see what it sounds like. I must say that I am very impressed. On the other channel is a Polk M4.5 with a 6.5" driver and a tweeter. The Fonken has a distinctive warmer sound that impresses me. The bass seems to equal that of the polk. I do have a BSC hooked up at the moment for about 2dB correction. I can only imagine what they will sound like when the cabinet is totally finished. Please remember that this is just a temporary hookup...

14th September 2009, 01:21 AM	#3
Glowbug diyAudio Member Join Date: Feb 2006 Location: Hillsborough, NC/McLean, VA	Looking good __________________ Jim J.

14th September 2009, 05:30 PM	#4
chrisb diyAudio Member Join Date: Aug 2002 Location: victoria BC	these will sound best( i.e. soundstage/imaging) oriented vertically, and not within a bookshelf (i.e. stand-mounted at least 1.5-2 ft from any side or rear wall boundaries) __________________ you don't really believe everything you think, do you? community sites t-linespeakers.org, frugal-horn.com commercial site planet10-HiFi

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14th September 2009, 12:23 AM	#2
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	OK, I have both cabinets to a point where I have them hooked up. I have the BSC hooked up and the backs have the the terminal blocks installed. The back panels, however, are not glued up yet. I must say that this little cabinet/driver combo is awesome. The bass definitely outperforms my Polk M4.5's. Probably get even better once the backs are sealed. Next up, maybe some towers...

14th September 2009, 08:38 PM	#5
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	I will have to see if I can drop the shelves down enough to rotate them up...I am at SWMBO's mercy - and lucky I got this far...

24th September 2009, 04:04 AM	#6
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	Well, one is really "down" now. I am in the final stages of a 3886 chipamp and everything checked out before I hooked the speakers up. Apparently there was one resistor that either broke loose somehow when I was jostling everything around or clamping the heat sink in place...anyways...the left channel started playing beautiful music through the fonken. Went to connect the right channel and snap crackle pop...wasn't enough to blow the fuse but enough to fry the driver. Crap! Fixed the resistor problem and been listening with my old speakers for the last hour and a half and it sounds great. Running an Aikido tube preamp into either a Tubelab SimpleSE or this new LM3886 chipamp.

25th September 2009, 02:24 AM	#8
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	heck...at least it was the one with the dented dustcap got my ship notice from madisound today...be back in business in a couple days.

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