I have been hearing alot raves about these lightspeed attenuators preamps on the forums. Some are now putting these lightspeed preamps inside of their power amps saying they sound alot better this way! Some also say these lightspeed preamps are one of the best that you can buy. I was looking over on the audio circle forum and found out about this new Integrated amp here... http://www.audiocircle.com/index.php?topic=87635.0 This forum review is for their last years model the I-150 without these lightspeed attenuators in it but at the bottom of this thread they show pictures of their new Susan model with these lightspeed attenuators. In one of these pictures they show the lightspeed attenuator's modules. Keep a close eye on this new amp it just might be one of the best to come on the market yet !