About 5 years ago a friend had both a set of Infinity IRS Beta's and a set of Apogee Diva's. This Diva's killed the IRS Beta's. It was not even close. Perhaps the other componets up stream could have been a better match with the Apogee's. What I observed was that the Diva's were way more coherent. The bass timing was way off on the IRS compared to the Diva's. No matter where we moved the bass cabinets or the ribbons on the IRS we could not get the same performance as we did with the Diva's. The midrange and the highs were much better with the Diva's as well. the timing of the driver complement on the apogee was far superior. In addition the control module for the IRS also induced alot of noise into the other componets. The IRS Beta's are a fun speaker to listen to but the Diva's are far better.
