Hola,
just a little words. The CLXs are made by thinking to use with them a sub for each channel and part of their design. The special bass filter that you can download from the Martin Logan site for their subs, BF-210 and BF212, and is the way to go for the perfect bass match. I just believe that the low frequency that is lacking from the CLXs, is for reproduce an organ church deep bass or big drums. The frequency response of the CLXs are stated +-3dB from 56Hz and up. This means that you have, with the right position at the room, still 40Hz perhaps at -4 or 5 dB. The exceptional bass energy is granted by double bass stat panels and are configured in bipolar mode. The midrange and high frequency is dipolar. The bass speed stat panels are providing an incredible double bass timbre with the musical bass natural resonance. This is what I do like most.
Did no know that the heaviest musical note from a big grand piano is an A musical note with a frequency of 27.5Hz. Also this lower musical scale is not used very much, because the piano has problems to reproduce it too.
We love the low frequency....but usually we are overbass. Our ears are for language, for communication between other humans and animals. Our ears are not too good for low frequency or high frequency. When you find a not educated ears using an equaliser, you will find at the device a big V at the knobs. Bass energy and high frequency is more present to their ears. Why is this? Because we don't hear bass and highs.
Regarding Peter, he is a very humble person with good ears. Peter is my friend. When he started to work with Martin Logan, the first thing that he did, was to call me via phone and when we got together at a CEDiA show some years ago, he said that it is good to have in his mind my face. When I got a good earthquake here in Costa Rica, the first person to offer me with help for my CLXs, was Peter.
Believe when I say that I could live without the sub with my CLXs. The double bass is reproduced without any artificial coloration. The deep notes are there, but perhaps without the intensity that we like. It is good for our ears to listen live music without any amplification. Just the solo instrument with its natural resonances. The CLX is very accurate with this.
Remember that the sound is granted by a change of pressure at the air. The heart of the CLXs, is the diaphragm that weights less than the air that it moves. Because it so light that it will move as fast as the signal is applied. And will stop moving as fast as the signal is not present. Other speakers with mass, once it is accelerated, you need to stop it, because of the inertia of the device. This inertia cause distortion.
Do a little test. Bring your ears to a tweeter and listen... horrible, right? A 3 feet away this horrible sound is diminish by a lot. 6 feet away, your ears can't tell. Well, part of the transparency of ML is the lack if this distortion. Bring your ears next to the panel, and what you hear is crystal clear sound.
Rare instruments their highest musical notes barely get to 5KHz, the harmonics at the violin is also around this 5KHz. Why we need more? Because of the ambience. And to have air between the musical instruments and voices.
My last words for you my friends,
Happy listening!