The Ohm A was one of our landmark speakers. The Klipshorn, Quad ESL and AR-1 are some others that come to mind. The Ohm A was a limited production series of hand made prototypes of Lincoln Walsh invention. The driver was 18'' in diameter and operated from 20 - 20,000 Hz. Overall it was the size of a medium sized refrigerator. Power requirements were high as it sounded best with 350 plus watts, but could only handle about half of that safely.
When we completed the original Ohm Walsh 5, we compared it to our pair of Ohm As. With the Walsh 5's bass control set at increase, perspective controls at mid and treble at decrease, the two systems sounded like one model. After 17 years of development we were right back where we started! Our improvements had not been in sound quality or quanitity BUT we had improved sensitivity by 20 times, peak power head room by 2, reduced the size by 2, widened the sweet-spot by 12 and reduced the room placement fussiness.
Today we put the latest Walsh drivers on old Ohm A cabinets to gain deeper bass.
Upgrade Options:
The A300-S3 upgrade is for large rooms. You retain your old Ohm A cabinets while you get a 300-S3driver, a new driver mounting board, input terminals, grills and drivers. The overall performance is comparable to the original Ohm A but requires only 1/20th of the power to drive it. The Full Room Stereo effect is more pronounced because of the controlled dispersion. Minor cabinet modifications are required and the entire installation takes less than 1 hour.
The installation of the A5-S3 is virtually the same except you get our new top-of-the-line Walsh 5 Mk-2 driver. This allows for better performance than the Walsh 5 because of the extra cabinet volume. The sound is amazingly similar to the original As if you set the bass and mid-bass controls to the maximum, midrange control to the middle, and treble control to the down position. These controls allow you to match the sonic character of your room as well as your taste. You'll enjoy sound from one of the best speakers in the world.
Good Listening!
Trade-In Options:
Ohm allows up to $3995 for the return of a complete undamaged pair of Ohm As
toward 25% of the purchase price of new Ohm speakers.