Interesting comments.I have always prefered warmer sounding speakers like Spendor and electrostats.So by comparison the Lowthers are cold.The Fostex are colder still.I have also used a Coral 10 inch which I rate ahead of the Fostex.
Maybe we have different understandings of cold.What I am referring to is the ability to convey the emotional aspects or feeling of the music.For many types of music this not really missed.I listen to a lot of acoustic roots music in which much of the substance is based on expression and timbre.Artists that typify this are Guy Clark,Francis Black,Mary Black,Kasey Chambers,Eva Cassidy,Shawn Colvin etc.On this type of music the relative coldness of the wizzer cone type speakers is revealed.I also have Edgar Mid horns that are superb on this type of music,as well as Crown electrostats and Toshiba SS30s[stunning sounding speakers].Other speakers I own like ESS Heil ribbons are not so good.
I use a 300b preamp [Supratek Cabernet]and EL34 monoblocks so I don't think there is any other cold sounding components in my system.
Anyway this is just one persons opinion.If you don't listen for the same things in music as me the Lowthers may suit perfectly.I do think however the back loaded horns have major phasing issues caused by the negative phase coming from the back of the cone and interfering with the sound coming from the front.This is not so much an issue for bass but it is for midrange performance and I think any such speaker needs carefully applied damping within the horn to minimise this.
JT