Morch DP-8 arm on a Helix Two turntable


Hello everyone. I am exploring putting a Morch DP-8 tonearm on a Helix Two turntable. I would like opinions from people who own the DP-8 specifically on how easy is to calibrate, how is its tracking and how accurate are the low frequencies. What is your accompanied cartridge(s)? I assume your system is capable of reproducing accurately instruments below 50Hz. Thanks in advance for taking the time to respond.
vassilis_t

Because this thread was brought to the fore, I see now that in March, 2021, Mijostyn likened the Dynavector tonearms to a Transcriptors Vestigial tonearm. Heaven forebid!  I have to guess that Mijo never used a Dynavector.  Very different. I am not insulted; just wanted to set the record straight. (I once also did own a Vestigial, mounted on a Transcriptors Reference TT.)

@lewm ​​@cleeds I owned a Vestigial arm on an LP 12 and have experience with the Dynavector.

They are alike in that their horizonal effective mass is much higher than their vertical effective mass. Both had/have their vertical bearings out at the end of the arm. They just counterbalanced them differently. The major difference is that overall the Dynavector is heavier and is infinitely more useful with modern cartridges. The Vestigial arm only worked with the most compliant cartridges. The problem with both arms is that the vertical and horizontal compliance of most cartridges is very similar. Another issue with the Dynavector is that in the horizontal plane it has a lot of inertia. It deals with this by using magnetic damping. In the vertical plane it is going to be too light for the less compliant cartridges. It's arm lift is a rather flimsy mechanism under the arm that could be a real resonance problem. 

I made the mistake of buying a Vestigial arm and will try not to repeat such a mistake. Making a device more complicated than it has to be is more than likely problematic. Now I would never consider an arm like the Dynavector as there are so many great arms that avoid unnecessary complexity and tic all the right boxes.