Originally Posted by Ian AS
I seem to have only questions!
Hi Ian, well I'm no speaker designer, the last set I built was a HS shop project. They turned out rather well, and I used them through college and after, but I digress...
I think much of the increased low bass output can be attributed to the bass-loading of the cabinet. The Ref 3.x speakers do have a rather large cone, but it's got very little air behind it, therefore a lot of resistance to its movement. The CL-IV has much more air, and its TL/Port system to help utilize the back wave of those cones to increase the low frequency output, and due to the ease of moving its 4 smaller lighter cones, is able to dig a bit deeper. And yes, I feel they have that increased LF output at lower volumes as well as higher. Also getting more bass energy out of the Ref 3.x is doable via the second voice coil. This is because the driver can handle the power, and when it's given more power it will readily produce more output, but that additional LF power isn't needed with the Classico line.
Also, it should be noted that I haven't lived with any Classico speakers, but I have had some good listening sessions with them and A/B'd them against the Ref 3.5 at those sessions. I know that this is not the same as living with them, and it should be understood that my impressions are based on these experiences.