Dynavector DV-507 Mk2 Owners manual

Dynavector DV507MKII Tonearm

Instruction Manual

1. Introduction

Thank you for your purchase of the DV-507MKII tonearm.

DV507MKII is a high-performance tonearm with many advanced features, which en-

able it to transmit signals on the record precisely through a cartridge. The original

mass-separation or 'bi-axis inertia' arm was the 505. The 507 MKII is the latest de-

velopment of that revolutionary design with greatly enhanced performance and ease

of use thanks to a major redesign.

Correct installation, set-up and operation are important to provide the best sonic per-

formance.

Please read this instruction manual carefully before attempting installation and use.

2. What is the bi-Axis inertia controlled tonearm.

The tonearm is required to fulll two functions so that the cartridge can reproduce

the exact signal from the record groove. One of these is to hold the cartridge station-

ary at audible frequencies so that the stylus and cantilever motion is translated into

a music system without losses. The other is to allow the cartridge to track warped re-

cords. These require totally contradictory properties from the tonearm and so all con-

ventional tonearms are a compromise between the two. However, a very reasonable

solution exists in the bi-axis tonearm.

The bi-Axis inertia control tonearm is in effect two arms in one - the main arm beam

has an effective-mass that is 3 or 4 times higher compared with conventional tone-

arm but moves only horizontally. On the other hand, the sub-arm has a lower effec-

tive-mass than any conventional tonearm but moves only in the vertical direction.

This combination means that the high effective-mass in the horizontal direction holds

the cartridge steady at audio frequencies, especially at low frequencies and high

groove excursions, whilst the low vertical effective-mass allows unmatched warp rid-

ing performance.

The DV507MKII has unique, non-contact, electro-magnetic damping system that re-

quires no maintenance or adjustment unlike the usual oil damping system. With the

new MK11 this damping is further enhanced by the use of neodymium magnets.

DV507MKII Instruction Manual

3. Parts identication

headshell

sub arm

tracking force adjuster

sub arm bar

sub weight

arm head

main arm

arm rest

height adjusting lever

arm lift

damper magnet

damper plate

main weight

main weight
stopper

anti-skating divice

main base

balancing scale

4. Mounting to the turntable

Use the supplied mounting template for the DV507MKII. Drill a 30mm diameter

hole on the arm board of the turntable 226 mm away from the turntable spindle

center.

Temporarily place the tonearm into to this hole. Adjust the angle of the tonearm

by rotating the arm base of the tonearm in the hole so that the desired position of

the tonearm at rest is achieved. Once found mark this position with a sharp point

through the three arm-base mounting holes. Drill these holes as appropriate for

the supplied woodscrews or bolts and x the base to the turntable.

5. Connection of the arm cable

The tonearm cable supplied is designed to the highest specication, with a

double-balanced, shielded cable and 4N OFC/6N. This cancels potential difference

between right channel and left channel giving the best possible transmission of the

signal.

Insert the 5-pin plug of the tonearm cable into the output connector of the tonearm

and connect the RCA plugs of the tonearm cable to the input of the phono stage

or the pre-amplier.

6. Alignment and operation

Please check and adjust the each part according to the following procedures

before xing the cartridge to the headshell.

6-1. Damper plate check

Very strong lines of ux run in the gap between the damper magnets. An eddy

current produced when the damper plate passes through this gap acts as a

dynamic damper to reduce arm resonance.

Rotate the main arm right and left gently

and check that the main arm rotates

smoothly while the damper plate passes

through the gap without touching with

damper magnets.

We carefully assembled the damper

plate to rotate smoothly, if there is

any physical contact between plate

and magnets at all, please return the tonearm for repair to your local dealer or

Dynavector distributor as this could seriously damage your cartridge.

6-2. Mounting the cartridge

a) Mount the cartridge onto the headshell supplied. Use good quality M2.5 or M2.6

screws supplied by the cartridge manufacturer and do not tighten them fully before

overhang alignment has been completed. The connection of the leads should be

done according to the instruction manual of the cartridge.