Audio Database

Image of DP-EC1mkIII

A full auto player based on DP-EC1mkII with further improvements.

An electronically controlled full-auto mechanism allows all tone arm operations to be controlled simply by pressing the operation buttons. In addition, a single-chip LSI circuit is used for quick and accurate response.

It uses an automatic record size detection mechanism by applying an optical system.
In this system, the reflector emits light from obliquely above and guides the light from the turntable seat reflector to the sensor. This light is emitted or blocked depending on the size of the record and changes the output of the sensor. This output is sent to a logic circuit that automatically detects the record size.
Based on the detected record size, the needle down position and rotation speed are automatically determined.

Equipped with a quick response function, it operates while always detecting the condition of the arm lifter and arm. Therefore, it is possible to perform auto operation from any position. Thus, even when the arm is ascending or descending in auto operation, if you indicate the next new operation with the button, it will move immediately to that operation.

For button operation, feather touch type using micro switch is adopted.

Equipped with a muting mechanism to cut noise.

In order to suppress the resonance of the tone arm, a weight case and a butyl rubber damper are added to the structure of the needle pressure knob and main weight, and an anti-resonance filter is adopted. In addition, by expanding the span of the pivot, looseness of the pipe part is eliminated, and high sensitivity is achieved in both vertical and horizontal directions.

The tone arm is driven by a dedicated motor that is independent in both horizontal and vertical directions.

Titanium alloy is used for the material of the tone arm.

Special coated OFC (oxygen-free conductor) is used for the inner arm conductor and head shell conductor.

The head shell uses a magnesium alloy head shell.

The turntable is driven by a quartz PLL system that controls the number of revolutions of the motor according to the reference signal of the crystal oscillator.
A high-torque DC servo motor with a precisely finished bearing mechanism is used as the drive motor.

The cabinet structure is a combination of die-casting, wooden frame, and resinamic.

In consideration of the effect of the turntable sheet on playback sound, we have adopted a turntable sheet that has been examined from both the shape and material. This sheet is slightly mortar-shaped in consideration of the thickness and warpage of the record to enhance adhesion with the record. In addition, in consideration of the material, hardness and specific gravity, etc., we have adopted a filled SBR sheet.

Model Rating
Type Full auto player
<Turntable portion>
Drive system Direct drive system
Motor 4-Phase 12-Pole Quartz PLL / DC Servo Motor
Turntable Outer diameter 333 mm Aluminum Alloy Die-cast, 1.8 kg
Inertial mass 350 kg / cm2
Number of revolutions 33 1/3, 45 rpm
Rotational speed switching system Electronic Type (Manual Switching at Irregular Rotational Speed)
Wow and flutter 0.011%(WRMS)
0.025% (WRMS, JIS, Rotating Part Only)
Signal-to-noise ratio 80 dB or more (DIN-B)
Tone Arm Section
Format Static Balance, Universal S-Shaped Pipe Type
Total Length 320mm
Effective length 227mm
Overhang 14mm
Offset Angle 22 °
Tracking error angle + 2.9 °, -1.5 °
Needle pressure adjustment 0 ~ 3g Direct Reading Type (0.1g Step)
Head shell Magnesium alloy, 6.2g
Cartridge mounting weight range 11g ~ 16.5g
16g ~ 21.5g (When Using Sub Weight)
Pwer 100 VAC, 50Hz/60Hz
Power consumption 12W
External dimensions Width 474x Height 150x Depth 395 mm
Weight 14kg
Attachment Overhang gauge
45 Rotation Adapter