Thanks for the compliments. I spent a lot of time on the construction and finish, glad it paid off.
2sooners:
1. The schematic I have doesn't reverse polarity
2. The stuffing should be applied from the top of the cab down to the lower woofer, you don't need to do the entire cabinet.
3. I believe my ports are 6" long, 3" ID.
4. Not sure, I just hooked them up
2sooners:
1. The schematic I have doesn't reverse polarity
2. The stuffing should be applied from the top of the cab down to the lower woofer, you don't need to do the entire cabinet.
3. I believe my ports are 6" long, 3" ID.
4. Not sure, I just hooked them up
1. You are correct, the polarity on the tweeter is NOT reversed on the latest crossover design. In addition, you can just use a 4 Ohm resister in the tweeter circuit rather than the 8 Ohm parallel 9 Ohm shown in the schematic.
2. The DC resistance at the posts will be the following:
(DC resistance of single W18 / 2) + DC resistance of 1.2 mH inductor + DC resistance of 0.7 mH inductor
Thank both of you for the speedy and very helpful reply.
Jim, The w18 is 6.1 ohm DC resistance. I am guessing the inductors will be so small of a resistance I cannot measure them. Would 3 ohms be a good indicator of a healthy speaker? I am scared of blowing my new amp that awaits these speakers. Any more
pre-op tests would be helpful as well.
Jim, The w18 is 6.1 ohm DC resistance. I am guessing the inductors will be so small of a resistance I cannot measure them. Would 3 ohms be a good indicator of a healthy speaker? I am scared of blowing my new amp that awaits these speakers. Any more
pre-op tests would be helpful as well.
2sooners,
The speakers will present a impedance, which is a curve and not a straight DC resistance. The curve varies with frequency presented.
What Amp are you going to be driving these with that concerns you?
I'm using an OLD Haffler DH-200 and it works just fine. Awaiting my F5 to drive them. I munged the boards up, and am receiving tech. aid with my F5.
Ron
The speakers will present a impedance, which is a curve and not a straight DC resistance. The curve varies with frequency presented.
What Amp are you going to be driving these with that concerns you?
I'm using an OLD Haffler DH-200 and it works just fine. Awaiting my F5 to drive them. I munged the boards up, and am receiving tech. aid with my F5.
Ron
This all came about when my old adcom 555 blew my speaker (shorted coils). I became
more than a little fed up trying to repair the old amp and speakers. The new thors will
hook to a new adcom 555se. I well understand the impedance properties but all i have on hand to test is my 77 fluke. I did some simple continuity tests and pulled the circuits on the XO's again. At this point i may be ready for the smoke test on one speaker. Tonight i will put the guts in the other one. Thanks to all.
more than a little fed up trying to repair the old amp and speakers. The new thors will
hook to a new adcom 555se. I well understand the impedance properties but all i have on hand to test is my 77 fluke. I did some simple continuity tests and pulled the circuits on the XO's again. At this point i may be ready for the smoke test on one speaker. Tonight i will put the guts in the other one. Thanks to all.
How many lbs of stuffing did you use for 1 speaker. My math says 1.2 lbs.
That will not be much.
I never weighed my long-hair wool stuffing. I just stuffed the upper 1/2 of the cabinet with a medium pack. Over time I have pulled out about half of what I started with, and lofted what was left to fill the space. Bottom 1/2 is still empty as recommended.
Ron
OK, Now the fun stuff. I have a tuned resonant/shunt/resonant tester hooked to + & -
I jump T+ & T- and cannot find a resonant frequency. I jump w1+ & w1- and likewise
no resonant found between 900 and 2500 HZ. I know I am doing something wrong.
W=woofer T=Tweeter. I should show a db measurement when i tune to the resonant frequency. A dead short of the tester leads will give ~21db. Anyone wanna light my bulb? My guess (hope) is to find band pass at ~1600HZ at some part of this circuit or is it?
I jump T+ & T- and cannot find a resonant frequency. I jump w1+ & w1- and likewise
no resonant found between 900 and 2500 HZ. I know I am doing something wrong.
W=woofer T=Tweeter. I should show a db measurement when i tune to the resonant frequency. A dead short of the tester leads will give ~21db. Anyone wanna light my bulb? My guess (hope) is to find band pass at ~1600HZ at some part of this circuit or is it?
BTW Thank you gentlemen for the help on the stuffing. Lots of DIY fun in store for this task.
It may have been another post but would anyone recommend coating or padding my interior wood? The cabs are solid cherry 3/4" and really ring on a thump. The braces
are birch plywood and are not nearly as ringy. 2cents anyone?
It may have been another post but would anyone recommend coating or padding my interior wood? The cabs are solid cherry 3/4" and really ring on a thump. The braces
are birch plywood and are not nearly as ringy. 2cents anyone?
This sounds like a question specifically directed at Dave (Planet 10)
He'll be by soon and offer his words of wisdom.
Ron
I'm assuming from your wording that you used separate boards for the woofer and tweeter circuits. If so, you need to add jumpers between the WT+ and WT- before you'll get the expected impedance curve.
Matt,
Looking at your speaker cabinets there seems to be quite a lot more space above the top driver than most of us whom have built the small Thors.
Is you build the Small Thors? or a different version?
Ron
Well the boxes built up and I tried the some test last night.
The speakers and amp and all did work ok but the first CD was PUKE...
One step at a time.
The cabs are rough. No base. Unglued side panel. Very light stuffing (1lb per speaker).
I say **. They still should sound better than this. Went to differend source.
GAWD! You who have built these know what I heard. 1 sleepless night later I ripped the
Excels out and back to the capentry shop for final work. I do mean final, I am sure they
will sound better when a number of small issues are corrected but even at this point I
was not ready for this level of performance.
These are the facts so far:
These speakers reproduce the source. Garbage in = Garbage out. Talented musician +
talented technician will produce emotional response.
They love power. Est 100w on Richard Elliot (sax/bass) was crystal clear and the neighbors loved it.
Short thor is the Bassman. They will bump. (with clarity).
Willie Nelson / Kimmie Rhodes were live at 1/3 throttle. No S___t. i mean live.
Ricky Skaggs likewise. Live.
Most contemporary Nashville source will reproduce live with these speakers.
My 100% negative wife loves them.
The Seas speakers are beyond anything i expected. The milleniem is Wow!
The cabs are going to be very pleaseing when finished.
They are extremely heavy and solid.
More rambling is sure to come and with pics to be sure. Fogive my lack of pics so far.
I would rather DL that camera and sort it out when this is finished and the MESS is all
ceaned up.
Bracing the drivers worked out very nicely with rubber HV electrical tape.
They did read 3.6 ohms DC resistance. Thanks Jim.
All for now but not without special thanks to Matt, Jim, Dave, Ron and Scottmoose.
Back with more later.....
The speakers and amp and all did work ok but the first CD was PUKE...
One step at a time.
The cabs are rough. No base. Unglued side panel. Very light stuffing (1lb per speaker).
I say **. They still should sound better than this. Went to differend source.
GAWD! You who have built these know what I heard. 1 sleepless night later I ripped the
Excels out and back to the capentry shop for final work. I do mean final, I am sure they
will sound better when a number of small issues are corrected but even at this point I
was not ready for this level of performance.
These are the facts so far:
These speakers reproduce the source. Garbage in = Garbage out. Talented musician +
talented technician will produce emotional response.
They love power. Est 100w on Richard Elliot (sax/bass) was crystal clear and the neighbors loved it.
Short thor is the Bassman. They will bump. (with clarity).
Willie Nelson / Kimmie Rhodes were live at 1/3 throttle. No S___t. i mean live.
Ricky Skaggs likewise. Live.
Most contemporary Nashville source will reproduce live with these speakers.
My 100% negative wife loves them.
The Seas speakers are beyond anything i expected. The milleniem is Wow!
The cabs are going to be very pleaseing when finished.
They are extremely heavy and solid.
More rambling is sure to come and with pics to be sure. Fogive my lack of pics so far.
I would rather DL that camera and sort it out when this is finished and the MESS is all
ceaned up.
Bracing the drivers worked out very nicely with rubber HV electrical tape.
They did read 3.6 ohms DC resistance. Thanks Jim.
All for now but not without special thanks to Matt, Jim, Dave, Ron and Scottmoose.
Back with more later.....
2Sooners,
Congrats, I know you wil LOVE your Thor's after about 80 hours, mine were a ragged mess of harsh brittle sound until they were broken in.
Sounds like your a CW fan too. Pick up an Alison Krauss CD and it'll bring tears to your eyes. My favorite CD to show off the system. (still working on the F5 to power these beasties.)
You are absolutely correct in they produce exactly what goes in. Garbage in = garbage out. They are extremely clean at high volumes and will make your ears bleed if that's what you want.
Welcome to the Planet 10 / ScottMoose fan club!
The few, the proud, the delighted, owner's of speakers of the Norse Gods.
Ron
Congrats, I know you wil LOVE your Thor's after about 80 hours, mine were a ragged mess of harsh brittle sound until they were broken in.
Sounds like your a CW fan too. Pick up an Alison Krauss CD and it'll bring tears to your eyes. My favorite CD to show off the system. (still working on the F5 to power these beasties.)
You are absolutely correct in they produce exactly what goes in. Garbage in = garbage out. They are extremely clean at high volumes and will make your ears bleed if that's what you want.
Welcome to the Planet 10 / ScottMoose fan club!
The few, the proud, the delighted, owner's of speakers of the Norse Gods.
Ron
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