| Construction: |
Radial arm with interchangeable arm tubes. |
| Bearing principle: |
DP-6 and DP-8: Dual bearing
UP-4: Unipivot. |
Effective mass of complete tonearm with arm tube:
Light (green):
Medium (red):
Extra heavy (blue): |
All arm tubes can be used with all models.
4 g
7.5 g
14 g |
| Fundamental resonance (depending on arm tube): |
8 – 16 Hz (for DP-8 N/A for the horizontal mode of motion) |
| Tracking force (when using calibrated scale): |
0 – 3 g |
| Bias compensation: |
Watch spring with string – adjustable while playing. |
| Azimuth: |
Azimuth is adjustable for correct channel separation. |
| Cueing mechanism: |
Piston in U-pipe, damped with silicone fluid. |
| Distance between pivot and center of turnable platter: |
212 mm (8 5/16″) or 294.1 mm (11 9/16″) |
| Diameter of hole for mounting arm base: |
20 mm (13/16″) |
| Rear overhang from pivot: |
70 mm (2 3/4″) |
| Weight of DP-8 arm base w/sideweights w/o counterweights and cord: |
580 g |
| Weight of DP-6 arm base w/armbush w/o weights and cord: |
280 g |
| Weight of UP-4 arm base w/armbush w/o weights and cord: |
240 g |
| Weight of a set of counterweights: |
120 g |
| Effective length: |
230 mm (9 1/16″) |
| Offset angle: |
24 degrees. |
| Lateral tracking error: |
0 degrees at 66 mm and 120.9 mm from center of record. |
| Pivot point: |
Pivot point is in level with the record surface. |
| Bearing Friction: |
Bearing friction less than 0.04 mN in all directions. |
| Balancing: |
Four (4) different balancing weights. |
| Internal wiring: |
19 strands of ultra pure silver insulated with Teflon. |
| Capacitance per channel: |
28pF for all models. |
| Tonearm Cord: |
Balanced. Extremely purified copper strands that are heavily silver coated. Halogen free insulation.
Moerch tonearm connector with Cardas RCA connectors.
Capacitance per channel: 100pF. |
| Terminals: |
All terminals throughout the arm are gold plated. |
| Bearing concept of model DP-6 and DP-8: |
One internally damped, precision ball-bearing assembly for the horizontal plane of motion. Two pivoted sapphire bearings for the vertical mode of motion which can be damped also, if desired, and then adjusted to different levels of damping. |
| Bearing concept of model UP-4: |
Hardened steel pivot resting on a concave sapphire, and damped for all motions with silicone fluid. |
| DP-6 and DP-8 finish: |
24 carat GOLD or CHROME. |
| UP-4 finish: |
CHROME or at special order GOLD. |
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