Hi Phild; It's been my experience that when a jitter reducer is used, it removes some to much of the shrillness, edginess, and a harsh electronic sound of particularly low priced CD players. In my case it particularly improved the upper mid-range and low treble, and made music less fatiguing.
I have used Sonic Frontiers Ultra Jitter Bugs with Sony CD players, ie CA9ES and 701ES with good results. The UJB also converts Toslink to coax. I've also used Theta's TLC successfully. You just have to try it to see if it improves the sound of your system. I haven't heard it, but the Monarchy DIP has gotten good reviews. Cheers. Craig
I have used Sonic Frontiers Ultra Jitter Bugs with Sony CD players, ie CA9ES and 701ES with good results. The UJB also converts Toslink to coax. I've also used Theta's TLC successfully. You just have to try it to see if it improves the sound of your system. I haven't heard it, but the Monarchy DIP has gotten good reviews. Cheers. Craig