Ohm F
The Ohm F was the most popular of the first generation Walsh speakers. It used a 12” inverted omnidirectional driver operating from 35 - 17,000 Hz. Some of the earliest Ohm Fs had Ohm A serial number plates, but the much smaller driver is of importance. The Ohm Fs were internationally recognized as ”one of the best…if… not the best…speaker in the world.” It received reviews from as far away as Australia and Thailand as well as throughout Europe and America.
Ohm F owners are a loyal group. Most find it hard to believe we’ve improved the speakers until they audition the top of the latest generation in their homes.
All Ohm Fs have reached the end of their functional lives. There is a foam damping material used around the base of the driver and inside that is failing from old age. We have never successfully repaired an Ohm F that was failing this way (the cone gets modified when you remove the old material and no longer sounds the same). For years, we replaced the old drivers with new ones. The last of these were made when the last craftsman retired. No more originals are available. But a series of upgrades with fourth generation drivers are available.
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| The F2000 (for small rooms) and F3000 (for medium rooms) look the same, sound the same and both come with new, more acoustically transparent grills. No cabinet modification is required. | The F4000 and F5000 look the same and sound the same in large rooms. The F4000 works in large rooms while the F5000 has controls to match any room size. Cabinet modifications are required. |
- Production Period
- 1972-1984
- Nationally Advertised Price
- $800 - $3995 per pair (varied with time)
- Dimensions
- 18 x 18 x 44
- Amplifiers Recommended
- 100 - 200W
- Impedance (typical)
- 4Ω
- Frequency Response
- 37 - 17,000 Hz (+/-3dB)
- Sensitivity @2.8 Volts
- 86 dB
- Recommended Room Sizes
- n.a.
- Ohm F FM Guide
- Download 478 kB
- Ohm F Australian Hifi
- Download 2 MB
- Ohm F Hi Fi Stereophonie
- Download 2 MB
- Ohm F Stereo Review
- Download 1 MB
We continued to make new Ohm F drivers for service replacement for many years after we stopped selling new units (we've never seen a ''repaired Ohm F'' that performed like a new one because none were good enough to put our name on them). The newly developed Walsh driver was adapted to the Ohm F cabinet and became the F-2 which was the first Ohm F upgrade. We stopped making the original driver in 1994 when the last of the craftspeople retired; but we now offer a wide range of upgrades. All the upgrades come with a 60 Day Home Trial and 3 Year Limited Parts and Labor Warranty.
We have continued to improve the Walsh technology and today the Walsh Thousand Series are the best speakers we have ever built and the reviewers agree:
''... they generate a kind of realism in stereo that is not available from ordinary box speakers, nor from panel dipolars... Listening to these speakers can be a hypnotic experience. With well-miked recordings, the sense of immersion in the recorded acoustics, of original ambiance revealed, and of the presence of the musicians grabs you almost by the throat... they do things almost no other speaker I know of can manage. There is serious thought behind them, and a level of originality not often found in speaker design. Like their ancestors, a legend in the making.'' Robert Greene - Fi
''... a room-filling, box-less, precise image that drew you immediately into the music... Bass extended down to 30 Hz in my room, a feat which few other speakers have been able to manage, and had good definition... The mid-range was neutral and uncolored with excellent detail... Trebles were extended and balanced... a marvelous you-are-there image with body, depth, and presence... Overall I found the Ohm 300 an excellent speaker, one that I could live with indefinitely... The Ohm 300 Mk-2 joins the ranks of the two or three other expensive speakers that I can strongly recommend.'' Kenneth M. Duke - The Sensible Sound
''Bass is outstanding for its tautness, depth, and power... image very well... excellent dynamics... the balance of frequencies was very good... Highs were always smooth and extended... The ambiance and sense of room size were marvelous... They are a pleasure to listen to.'' James T. Frane - The audiophile Voice
''... a very large sound stage... big on bass, and I mean deep and powerful... the mids are so open, like you might find with a ribbon speaker... should definitely be auditioned.'' J.D. Moretti - Secrets of Home Theater and High
''... a huge sound stage... phenomenal... exciting... Dynamite!.. amazing disappearing act... Smoooooooth... very transparent... I like these speakers. I like them a lot.'' John Polis - SMR Home Theatre
These are comments from the first independent reviews of the Walsh Mk-2 Series loudspeakers. The Ohm F upgrades use the drivers from the newer Thousand Series. With your Ohm F cabinets, you will enjoy 25 Hz low bass which is an extra half octave of deeper bass than the original Fs.
60 Day Home Trial
You can hear them for yourself with our Home Trial program. Audition a pair in your home for up to two months. If you are not completely satisfied, return them for a full refund of your purchase price. Your satisfaction is guaranteed!
Optimized for Your Listening Room
The Walsh Thousand Series are designed to work best in specific sized rooms: small, medium or large. They take advantage of the reinforcement room walls give to the deep bass. For your main speakers the dispersion is restricted on the sides and back to make placement easier and the sweet-spot becomes a sweet-sweep, usually as wide as the speakers are apart. Rear ambiance speakers are still available as full range, fully omnidirectional speakers at no difference in cost.
The Ultimate in Sound and Flexibility: The F5000 for $4700.
The F5000 driver is the latest version of the highly reviewed Walsh 300 driver with switches that allow you to match its balance to your room (big to small and live to dead) and your preference (forward to recessed). These always come with the new grills. The cabinet needs some modification since the F5000 system can produce up to 10 times the sound level the original Ohm F could. It takes about 2 hours if you're handy with woodworking or we will do the modifications for you for $250 plus freight both ways.
The Ultimate Sound - Matched to Your Room Size: Small $2100, Medium $2900, or Large $4000.
These use the actual drivers from the Walsh 2000, 3000 and 4000. They all come with the new grills. You must modify the cabinet with the F4000; change the drivers for the F2000 plus remove some of the stuffing for the F3000. Used in the proper sized rooms, they sound virtually the same on all recordings -- and the same as the F5000. The advantages of the F5000s are their flexibility to match any room and taste plus their ability to play louder in small and medium rooms.
Match your room: Recommendations/Specifications
Model Room Size Cu Feet Power Peak Watts Frequency Response +/13Db Sensitivity dB at 2.8V Impedance Ohms Factory Direct $/pair* Original F 3200 100-300 37-17,000 87 >4 n/a F5000 800-8500 100-300 25-20,000 87 6 4700 F4000 4500-8500 70-300 25-20,000 88 6 4000 F3000 2400-5400 45-250 25-20,000 88 6 2900 F2000 1400-3000 30-200 25-20,000 88 6 2100 *All these prices are with the return of your old F drivers (or at least the magnet assemblies) within 6 months.
Give us a call at (800) 783-1553 or (718) 422-1111 to discuss your needs.Note: Most Ohm upgrades require no specialized knowledge and are easily completed completed by any person. It takes less time to install your own upgrade than it does to package and return ship your speakers to the factory, therefore, we recommend you save time and money by doing this yourself. We ship the upgrade to your door with clear, easy instructions. If for any reason you prefer to have the factory complete your upgrade installation, we will be happy to do this for free, however, you will be responsible for shipping and handling costs each way.
Ohm allows up to $3995 for the return of a complete undamaged pair of Ohm F's toward 25% of the purchase price of new Ohm speakers.
| Service Options | Price | Order |
|---|---|---|
| Upgrade to F2000/pair | $2,100 1 | |
| Upgrade to F3000/pair | $2,900 1 | |
| Upgrade to F4000/pair | $4,000 1 | |
| Upgrade to F5000/pair | $4,700 1 | |
| (1) With the return of the original part for recycling within 60 days. (2) With the return of the original part for recycling before the shipment of the new part. (3) Recycled repaired and tested. (4) Per pair. (5) Special shipping rate applies. | ||
A Brand You Can Trust
