DENON DP-70M
¥ 98,000 (around 1981)
Commentary
A manual record player with a double structure turntable.
A double structure is adopted for the turntable part.
Structurally, it consists of a high-cut filter that connects the upper and lower turntables with springs and dampers, and is fixed to the motor shaft, thereby blocking external vibrations such as acoustic feedback from speakers.
An out Rocester type AC servo motor is used as the drive motor.
The tone arm is equipped with a high-sensitivity S-shaped tone arm with dynamic damping mechanism.
Equipped with a helicoid arm elevation mechanism that can adjust the height of the tone arm according to the cartridge.
Uses a 70 mm thick cabinet made of particleboards with a Bubinga natural wood finish.
The tone arm can be replaced with the light mass tone arm DA 401, which is compatible with high compliance type cartridges.
Model Rating
| Type | Auto lift player |
| Phono Motor Section | |
| Drive system | Bidirectional servo direct drive |
| Motor | Out rotor AC servo motor |
| Speed control | Speed servo and phase servo by frequency detection (Speed Servo Only at Speed Adj) |
| Number of revolutions | 33 1/3, 45 rpm (± 6% adjustable) |
| Wow and flutter | 0.015% w. rms or less (DENON measurement method) 0.02% W. rms or Less (JIS Measurement Method) |
| Signal-to-noise ratio | 80 dB or more |
| Startup time | Within 1.6 Seconds (33 1/3) |
| Load characteristic | 0% (Needle Pressure 150g Outer Circumference) |
| Power supply voltage characteristics | 0% for 90 ~ 110 V |
| Turntable | Top : Zinc Die-cast 30.8 cm Bottom : Aluminum Die-cast |
| Moment of inertia | 370 kg / cm2(including turntable seats) |
| Arm Section | |
| Type | Static Balance S-Type with Dynamic Damping Mechanism |
| Effective length | 244mm |
| Overhang | 14mm |
| Tracking error | 2.5 degrees or less |
| Needle pressure variable range | 1 Rotation 2.5g (1 Scale 0.1g) |
| Applicable Cartridge Dead Weight | Approximately 13 ~ 19g (including shell, etc.) |
| Shell | 9g (Equivalent to PCL-4) |
| Height adjustment | Approx. 9 mm (Helicoid Type) |
| Output code | Low Capacity Cord Approx. 1.2m |
| Attachment mechanism | Contactless anti-skating mechanism |
| <General> | |
| Cabinet | Bubinga natural wood 貼仕 Height Density Particle 70 mm Thick Laminate |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 11W |
| External dimensions | Width 490x Height 161x Depth 444 mm |
| Weight | Approx. 16 kg |