Awaiting (not so patiently) for my cables to arrive from Audio Sensibility. I only ordered 1 pair, but if the DS system works, I’ll get all the cables. The longest one is about 4 meters.....preamp to amp. The others are 1 meter. ..just thinking....My speakers are Vandersteen 5A’s which have high pass (maybe low pass) filters. The preamp is connected to the filters which then go into the seperate amps in each speaker. The filters roll off the lows at a specific rate which goes to the mids/highs section of the speaker, whereas the woofer amps increase the lows at the appropriate level to balance the rest of the speaker....actually it sounds complicated, but it works well. My amp is freed of the task of powering the low end and kind of loafs amplifying the mids/highs. I don’t want anything untoward to happen to my over 100 lb amp, so I’ll first put the new D/S cables into my dedicated headphone amp. If that one blows up, it might be easier to repair. We’ll see how it all goes.