Tonywinsc,
You flatter me :-)
I don't believe that I have more experience than many folk here?
What I do have through my architectural profession......is a working knowledge of structural engineering, building materials, construction techniques and building acoustics.
I am convinced that the fundamental enemy of the 'turntable system'.....is Structure-Bourne Feedback.
Many people assume that Air-Bourne Feedback is the issue as they perceive an increase in feedback when they increase the volume from the speakers.....whereas the increased volume is merely highlighting the Structure-Bourne feedback.
Every suspended timber-framed floor is wracked with Structure-Bourne feedback due to structural deflections....and surprisingly......every suspended reinforced concrete slab is also wracked with similar Structure-Bourne Feedback due to the same structural deflections.
Only a steel reinforced concrete slab on the ground can be relatively free of this form of feedback.
The stresses caused by these structural deflections result in 'movement' and continuous low-frequency energy within the floor system.
All the expensive stands, isolation platforms and turntable suspension systems are designed primarily to isolate the plinth and platter from this Structure-Bourne Feedback but very few are 100% effective because of the severe low-frequency of the feedback and because of the movements induced.
Once you have heard a turntable system.....any turntable system......totally free of this Structure-Bourne Feedback......you will realise the singular importance of this principle.
You will also notice when this is achieved.....that tonearms and cartridges are generally liberated to perform their tasks as designed?
So I agree with you.......the type of drive system implemented and the absolute accuracy of speed maintenance is not as significant IMHO?
You flatter me :-)
I don't believe that I have more experience than many folk here?
What I do have through my architectural profession......is a working knowledge of structural engineering, building materials, construction techniques and building acoustics.
I am convinced that the fundamental enemy of the 'turntable system'.....is Structure-Bourne Feedback.
Many people assume that Air-Bourne Feedback is the issue as they perceive an increase in feedback when they increase the volume from the speakers.....whereas the increased volume is merely highlighting the Structure-Bourne feedback.
Every suspended timber-framed floor is wracked with Structure-Bourne feedback due to structural deflections....and surprisingly......every suspended reinforced concrete slab is also wracked with similar Structure-Bourne Feedback due to the same structural deflections.
Only a steel reinforced concrete slab on the ground can be relatively free of this form of feedback.
The stresses caused by these structural deflections result in 'movement' and continuous low-frequency energy within the floor system.
All the expensive stands, isolation platforms and turntable suspension systems are designed primarily to isolate the plinth and platter from this Structure-Bourne Feedback but very few are 100% effective because of the severe low-frequency of the feedback and because of the movements induced.
Once you have heard a turntable system.....any turntable system......totally free of this Structure-Bourne Feedback......you will realise the singular importance of this principle.
You will also notice when this is achieved.....that tonearms and cartridges are generally liberated to perform their tasks as designed?
So I agree with you.......the type of drive system implemented and the absolute accuracy of speed maintenance is not as significant IMHO?