Home Brew Al K Universal crossovers.

laatsch55

laatsch55

Administrator,
Staff member
#1
Joined
Jan 14, 2011
Messages
74,216
Location
Gillette, Wyo.
Tagline
Halfbiass...Electron Herder and Backass Woof
#1
Alk Eng no longer offers the "Universal" crossover in kit or finished form. Al does not mind folks building them on their own. Some caps I could not get so we'll see how these work out. Alethia Audio is now the licensed seller for the universal model but offers no kit option. For the 700.00 price tag per pair this is worth pursuing. These will be assembled per Al's original construction notes. Boards courtesy of Jani/.....
 

Attachments

laatsch55

laatsch55

Administrator,
Staff member
#3
Joined
Jan 14, 2011
Messages
74,216
Location
Gillette, Wyo.
Tagline
Halfbiass...Electron Herder and Backass Woof
#3
One of the weak spots (not really, but with me they are) are the 10 watt 10 ohm "swamping resistor". I have opened a couple of these up like a blooming flower.. So we're gonna try 4-10 ohm, 5 watt in a series -parallel configuration...
 

Attachments

Skratch

Skratch

Chief Journeyman
#4
Joined
Dec 27, 2011
Messages
1,130
Location
Huntley Il.
Tagline
Life is short, so take your time
#4
laatsch55 said:
One of the weak spots (not really, but with me they are) are the 10 watt 10 ohm "swamping resistor". I have opened a couple of these up like a blooming flower.. So we're gonna try 4-10 ohm, 5 watt in a series -parallel configuration...
Click to expand...
That should keep them from blooming.
 
laatsch55

laatsch55

Administrator,
Staff member
#8
Joined
Jan 14, 2011
Messages
74,216
Location
Gillette, Wyo.
Tagline
Halfbiass...Electron Herder and Backass Woof
#8
Considering Al's reputation I don't know if you could imprive the design, perhaps the components...This is the first of 2 pairs i need to build for the K's we got in Wa state that dingus flushed out last year. This set and a set of tweets and Chris' set will be up and running, then we start work on Kevins set..
 
laatsch55

laatsch55

Administrator,
Staff member
#12
Joined
Jan 14, 2011
Messages
74,216
Location
Gillette, Wyo.
Tagline
Halfbiass...Electron Herder and Backass Woof
#12
Wow, this is embarrassing. While R & R ing the crossover I found I had the wires from the amp reversed from the right channel!!!! Talk about soundstage and bass!!!!1 JESUS!!!!!!!!!!!
 
laatsch55

laatsch55

Administrator,
Staff member
#13
Joined
Jan 14, 2011
Messages
74,216
Location
Gillette, Wyo.
Tagline
Halfbiass...Electron Herder and Backass Woof
#13
SAME BASS AT HALF THE THROTTLE! OH JEEZ... got some music to listen to now my god, what an idiot!!
 
Gepetto

Gepetto

Administrator
Staff member
#15
Joined
May 15, 2011
Messages
13,536
Location
Sterling, MA
Tagline
Old 'Arn Enthusiast
#15
laatsch55 said:
SAME BASS AT HALF THE THROTTLE! OH JEEZ... got some music to listen to now my god, what an idiot!!
Click to expand...
You mean we can put C6 back to its original value?? :)

You should see the stuff I am finding in the PL4000 in terms of choking the lower frequency response.
 
laatsch55

laatsch55

Administrator,
Staff member
#16
Joined
Jan 14, 2011
Messages
74,216
Location
Gillette, Wyo.
Tagline
Halfbiass...Electron Herder and Backass Woof
#16
Mach4 on the 400 and I'm at 121DB!!!!!!!!!!!!!!! I can't believe this!!! I guess if the left/right woofs arent cancelling each other out things will be a little louder!
 
laatsch55

laatsch55

Administrator,
Staff member
#18
Joined
Jan 14, 2011
Messages
74,216
Location
Gillette, Wyo.
Tagline
Halfbiass...Electron Herder and Backass Woof
#18
Gepetto said:
You mean we can put C6 back to its original value?? :)

You should see the stuff I am finding in the PL4000 in terms of choking the lower frequency response.
Click to expand...

C6 is just fine Joe...

OK why did they not concern themselves with the extreme of the FR??? Shitty sources?
 
Gepetto

Gepetto

Administrator
Staff member
#19
Joined
May 15, 2011
Messages
13,536
Location
Sterling, MA
Tagline
Old 'Arn Enthusiast
#19
laatsch55 said:
C6 is just fine Joe...

OK why did they not concern themselves with the extreme of the FR??? Shitty sources?
Click to expand...
Probably turntable rumble that produced subsonic woofer movement...but to me that is what they have low frequency rolloff filters for.
 
You must log in or register to reply here.
Top