A number of folks have raised questions about the integration of the standard issue 225s with the horns.
The prior owner of my Trios added a third pair of 225s. I cannot say why but everything sounded much better with a third bass unit (larger wave launch at lower volume=faster response time ? ? I don't know). That is what I currently use.
You already know the 225 has variable freqency range and volume. There are a lot of parameters to play with.
225s are pretty cheap on the used market. They also appear to be reliable over the long haul.
The prior owner of my Trios added a third pair of 225s. I cannot say why but everything sounded much better with a third bass unit (larger wave launch at lower volume=faster response time ? ? I don't know). That is what I currently use.
You already know the 225 has variable freqency range and volume. There are a lot of parameters to play with.
225s are pretty cheap on the used market. They also appear to be reliable over the long haul.