Denon DP-31F

The Denon DP-31F is a fully automatic direct drive turntable system designed for high-quality audio playback. Here are some key features and details about the Denon DP-31F:

• Full Auto Player: It operates as a full auto player, handling the entire process of playing records automatically.

• Drive System: The DP-31F uses a bidirectional servo direct drive system for precise control over the rotational speed.

• Motor: It is equipped with a linear drive MF motor, which contributes to its smooth operation.

• Speed Control: The turntable includes a speed servo and phase servo by frequency detection, ensuring accurate speed control.

• Speeds: It supports playback at 33 1/3 and 45 rpm.

• Wow and Flutter: The wow and flutter is rated at 0.012 (0.02)% w. rms (rotating system) 0.02%W.rms(JIS), indicating a low level of pitch variation.

• Rotational Speed Deviation: The deviation is kept to 0.002% or less, ensuring consistent speed throughout playback.

• Signal-to-Noise Ratio: The signal-to-noise ratio is 78 dB or more (DIN-B), providing clear sound quality.

• Startup Time: The turntable starts up within 2 seconds at 33 1/3 rpm.

• Turntable: The turntable is made of aluminum die-cast, measuring 30.8 cm in diameter.

• Tone Arm: The tone arm is a static balance with damping, shell exchange type, and is a light mass straight type.

• Cartridge: The turntable uses the Denon DL-60 MM cartridge, which has an output voltage of 2.5mV and a compliance of 10x10-6cm/dyne.

• Power Supply: The DP-31F is designed for 100V power supply and requires a 120V to 100V step-down transformer for use in regions with 120V power supply.

• Condition: The DP-31F is often found in very good condition, with some units being fully serviced and refurbished.