• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Ohm F questions?

Harvestor said:
Also I would like to know how many years you have owned the model A and how or what is the story of your acquiring the set of model A?
Click to expand...

I have owned them for 17 years.

I purchased them from an individual in California and paid to have them custom packaged and shipped on a truck.
 
Harvestor said:
After reading ohms website on legacy product about the model A said that they were prototypes so it makes your story interesting or even the story of the person who got them before you I wonder did ohm just sell them to very particular customers?
Click to expand...

I don’t know how they originally got them, but the person who sold them was a wealthy tech genius. I don’t think he would want me talking too much about it. Not to be mysterious but it was a private transaction and he was super classy and accommodating all the way. I think he was more concerned with seeing them go to someone who really appreciated them than what I paid for them, which surely would not budge his personal finance meter.
 
Harvestor said:
Damn..
It would be such a fun thing for me to at least hear a set of A for an afternoon.

Personal question why haven't you been on the forum much over the years?

Seems like person like yourself could have some knowledge to share at least once a month... Anyway I'm grateful for your responses and happy that you returned turn the Forum..

I have wanted to get a set of ohm speakers ever since 1978 when my brother brought home a pair of H and miraculously since April I've acquired the model I the model C2 and the model H all as if by a miracle

View attachment 1360794

I am very grateful for what I have but it would be nice before I die to at least acquire a set of Model F.. that have been refurbished.. to complete my collection and if there was supernatural miracle a set of model A
Click to expand...

I think this is the best forum on the web but I am very busy and torn in many directions. I will try and check in once in a while.

Getting a refurbished pair of Fs should not be too hard. Some places will still work on them. Find a pair that needs reformed and start the project...
 
Rex81 said:
Lab, I completed a restoration on a set of Ohm F a couple years ago. It was a time-consuming, but fun project. I attempted to create a how-to guide in an effort to save somebody like yourself a little time and hassle.

http://audiokarma.org/forums/index....d-to-restore-a-set-of-legendary-ohm-f.780113/

Take a look and let me know if you have any questions.
Click to expand...

It's quite informative. Mine are also a special case because I never got the cabinets. Mine were sold bare naked; no cabinet base and no grill for the top. I've been trying to guess proper dimensions, but if one of you fellas would do somega measuring and post the specifics, it would save me a load of time and guesstimation.

On that topic... any benefit in using a ported cabinet or larger volume? I also don't know what should be stuffed in the cabinet base. Polyester fill, fibreglass or maybe I should start collecting dust bunnies? Loose filled or fairly packed? I'm guessing there would be bracing like in my ohm walsh 2xo's.

Any and all enlightenment would be gratefully accepted.

When I first bought the f drivers I figured the cabinets would be a snap as they're sealed boxes and not unbearably large. On further examination (and reading) I realize the tapered cabinet might well control some standing wave effects and some have mentioned the cabinet is more to absorb the wave as it travels down the cone and not just a box for air suspension.

The more I read the less I seem to know about the mysterious walsh driver.

Lab
 
I’m no speaker designer so I’ll let others correct me, but I assumed the F is one of those rare speakers in which the cabinet is not particularly important to how it makes sound. The plinth that the driver is attached to just rests on top of the cabinet, and fires into what is basically a pillow. I haven't done any scientific measurements or analysis, but I've played music through the drivers while they sat on the carpeted floor, and they sound remarkably similar to resting on their cabinets. The cabinets may just be more helpful in raising the driver to the right height, damping the sound, and making them look pretty. You may find that you can easily approximate the sound with a simple setup.

I'm afraid I can't help with exact measurements as I've recently sold my pair, but here's a photo showing the base and "pillow".
 

Attachments

  • DSC_0711.JPG
    DSC_0711.JPG
    59.3 KB · Views: 17
Rex81 said:
I’m no speaker designer so I’ll let others correct me, but I assumed the F is one of those rare speakers in which the cabinet is not particularly important to how it makes sound. The plinth that the driver is attached to just rests on top of the cabinet, and fires into what is basically a pillow. I haven't done any scientific measurements or analysis, but I've played music through the drivers while they sat on the carpeted floor, and they sound remarkably similar to resting on their cabinets. The cabinets may just be more helpful in raising the driver to the right height, damping the sound, and making them look pretty. You may find that you can easily approximate the sound with a simple setup.

I'm afraid I can't help with exact measurements as I've recently sold my pair, but here's a photo showing the base and "pillow".
Click to expand...
What was your reason for selling your Ohm F?
 
Harvestor said:
What was your reason for selling your Ohm F?
Click to expand...

I just didn't use them enough. I came to the conclusion that I wanted a single home theater/music listening solution and I had the opportunity to buy some new Martin Logan Electromotion ESLs and a nice Aventage receiver from a friend. The MLs are fantastic speakers. They do some things better (some things worse) than the F.

It was a tough decision, but they deserve to be played and enjoyed rather than sit in a corner. My wife was more upset than I was. She loved those things. :)
 
lab said:
It's quite informative. Mine are also a special case because I never got the cabinets. Mine were sold bare naked; no cabinet base and no grill for the top. I've been trying to guess proper dimensions, but if one of you fellas would do somega measuring and post the specifics, it would save me a load of time and guesstimation.

On that topic... any benefit in using a ported cabinet or larger volume? I also don't know what should be stuffed in the cabinet base. Polyester fill, fibreglass or maybe I should start collecting dust bunnies? Loose filled or fairly packed? I'm guessing there would be bracing like in my ohm walsh 2xo's.

Any and all enlightenment would be gratefully accepted.

When I first bought the f drivers I figured the cabinets would be a snap as they're sealed boxes and not unbearably large. On further examination (and reading) I realize the tapered cabinet might well control some standing wave effects and some have mentioned the cabinet is more to absorb the wave as it travels down the cone and not just a box for air suspension.

The more I read the less I seem to know about the mysterious walsh driver.

Lab
Click to expand...
I'll try to remember to post measurements tonight...
 
Rex81 said:
I just didn't use them enough. I came to the conclusion that I wanted a single home theater/music listening solution and I had the opportunity to buy some new Martin Logan Electromotion ESLs and a nice Aventage receiver from a friend. The MLs are fantastic speakers. They do some things better (some things worse) than the F.

It was a tough decision, but they deserve to be played and enjoyed rather than sit in a corner. My wife was more upset than I was. She loved those things. :)
Click to expand...
The ohm Model F would be interesting to have six of them for a 7.2 setup surround sound two in the front two on the side rear 2 in the back.. .

I bet the surround sound would be So life like it would be real spooky....
 
Last edited:
lab said:
Thanks Satellite! I appreciate that big time.

Lab
Click to expand...

No Problem...

The pyramid is 15" x 15" at the top and 17 3/4" x 17 3/4" at the bottom. It is 23" high not including the base.
There is a top ledge about 1" down which is about 7/8" wide, with 45's in the corners about 3 1/4" on each side.
There are cross braces about 9 1/2" from the top which are about 1 1/2" wide, which support the pillow.
I can't see if there is anything else below that.
The solid floor is recessed about 1/2". There is a base using 3/4 stock on edge which is about 15" x 15" x 2 1/2" high, mounted to the floor.
 
Last edited:
I never heard of a track saw, but now that I Googled it, I might have to have one... :)

Which one do you have?
Let us know how you like it...
 
Last edited:
First I bought a Grizzly track saw kit which I think I revved the motor once and slid it on its track to see how smooth it could move. Never got around to using it. Then about a month later I bought a Makita track saw kit which was rated a lot higher. Ironically if I had held off on the first one I could have bought the Festool which seems to be the best rated saw.

The Makita has a safety tab that prevents it from falling out of the track when cutting a 45 degree angle and it has a scoring feature that lets you cut a clean line in veneer so it wont splinter when you do your final cut. I haven't even turned on the Makita yet (and I think I've had it for maybe 2 years)

I have numerous woodworking tools never touched after I assembled them. :(
 
You must log in or register to reply here.
Back
Top Bottom