Pioneer PA-5000
¥ 37,000 (around 1979)
Commentary
Tone arm with dynamic absorber.
We have adopted a dynamic absorber using a bellows (a concentric waveform damper made of butyl rubber) originally developed by Pioneer. This is an application of the resonance absorption theory. It improves the damping effect of low-frequency resonance and greatly reduces crosstalk. Since this damping does not affect anything other than the resonance frequency of the arm, there is no increase in the mechanical impedance of the ultra-low frequency range.
The use of this dynamic absorber mechanism greatly improves the tracing capability and fully brings out the performance of a high-compliance cartridge.
It uses a high-strength aluminum alloy pipe that is three times stronger than conventional aluminum and is supported by a gimbal support system.
Uses a helicoidal height fine adjustment mechanism.
Easy-to-use structure that can be adjusted with lever after rough adjustment.
Equipped with a non-resonant lightweight type magnesium alloy head shell.
Model Rating
| Type | Static balance S-shaped universal arm |
| Effective arm length | 250mm |
| Overhang | 14mm |
| Tracking error angle | + 2.1 ° ~ -1.2 ° |
| Needle pressure adjustment range | 0 ~ 3g (0.05g steps) |
| Compatible Cartridge | 4g ~ 7g (up to 12g by using sub-weight) |
| Support system | Gimbal support system |
| Height adjustment range | 45 mm ~ 75 mm (Up to pivot center. Rough adjustment) ± 3 mm (fine adjustment by helicoid) |
| Pipe | High-strength aluminum alloy pipe |
| Head shell | Magnesium alloy |
| Attachment mechanism | Dynamic absorber Direct lever type anti-skating Silicone Oil Dump Type Arm Lifter |