After living with the DP8 tonearm for a few weeks, just wanted to post a few comments for those who have some interest in this arm.
Although I did post above that it was easy to set up, I did find find out that my initial set was not optimal. After spendping more time working on the lateral balance and centre of gravity as described in the instruction, things started to sound better. As other dp8 users in this thread have mentioned, overhang is absolutely critical when using this arm. It must be set precisely or you don’t get the full performance. Also the wiring in the arm wand needs burn in, the more I play it the better it sounds. I have found the Cardas sweep/burn in album to be very helpful and try to run it every day or so.
The only other arm I have used with my Orbe is the Tecnoarm. While it is a fine arm, the Moerch is better in several respects. The Moerch is smoother and richer sounding, as if a layer of resonance has been removed, especially in the treble. Small details emerge that were previously hidden. This helps produce a very wide and deep soundstage. Loud, complex music holds together better.
Then there is the bass. It is not that it goes so much deeper than the Tecnoarm (which also has good bass), it goes deep but it is so clean. Weather acoustic bass or electric, you hear the players fingers on strings, you hear the body of the instrument, the details of the playing. It is quite amazing, and has me seriously considering (once again) subwoofers for my Acoustats.
Although it is quite different in use from the Rega based Tecnoarm, as I have become more familiar with it I have found it a pleasure to use. The cueing is accurate, the arm comes down at a nice smooth rate (after you add the silicon damping), and due to the large effective horizontal mass from the side weights, the arm moves smoothly and solidly in the up position to where you want to drop it. The arm can move up and down as well as side to side (unlike a Rega), it is not really wobbly and it seems perfectly natural now.
I want to again point out the service from Mehran of Sorasound and Mr. Moerch as well. They have been there to help with the set up of the tonearm, Mehran has FaceTimed me and Mr. Moerch has also made himself available on FT should I need him. They really want me to get the most out of the arm.
I also think it looks great on my Orbe. Very happy with my purchase!
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