According to the article I just read at http://www.speedzones.com/ it looks like the Passport 8500 X50 is the new king?
The “Top Dog” of radar detectors in the Over $300.00 price category goes to ******’s X50 for the following reasons. It was the only detector to report constant on and instant on radar over the hill at the 2 1/2 mile cone. It consistently alerted to MPH’s Bee III POP mode. It was one of only two of the six detectors tested to be invisible to the new Spectre III RDD and it tied in the Long Ranger test alerting at an astounding eleven miles from the radar guns. The X50 also lends itself easily to interfacing with motorcycle defense systems with external audio.
The “Top Dog” of radar detectors in the Over $300.00 price category goes to ******’s X50 for the following reasons. It was the only detector to report constant on and instant on radar over the hill at the 2 1/2 mile cone. It consistently alerted to MPH’s Bee III POP mode. It was one of only two of the six detectors tested to be invisible to the new Spectre III RDD and it tied in the Long Ranger test alerting at an astounding eleven miles from the radar guns. The X50 also lends itself easily to interfacing with motorcycle defense systems with external audio.