The Ohm I was a 4- way system with a built-in subwoofer in each cabinet. Designed in the late 1970s (before most people had heard of subwoofers!), it still holds Ohm's record for highest output head room. The system could handle 1500 watts on most systems! In addition to the 12'' subwoofer, there was a vented 8'' woofer/ midrange that operated from 100 Hz to 1700 Hz. This driver was mounted on the top of the cabinet and had 360 degree dispersion. Also on top of the cabinet was a 1.5'' low tweeter and 1'' high tweeter. On the front of the cabinet was another 1'' high tweeter to extend the treble.
Upgrade Options:
There are many upgrades for the Ohm Is. The 12"
subwoofer can get a SubBass Activator and vent adapter to extend the bass below
28 Hz. The 8" midwoofer can get a new cone with a smoother transition to
the low tweeter. The Low Tweeter can go to the new 2" metal dome.
The front high tweeter can go to the 3/4" metal dome tweeter. The crossover can have upgrade poly-caps.
Completely ugraded Ohm Is are sometimes available for $2195 -- $2595
depending on finish. Call 800-783-1553 for availablitiy.
Trade-In Options:
Ohm allows up to $1550 for the return of a pair of complete undamaged Ohm Is toward 25% of the purchase price of new Ohm speakers.