Dynavector DV-505 Tone arm Instruction Manual
INDEX
Dynavector DV-505 tone arm has an entirely
new concept in tone arm design. The DV-505
is a high performance tone arm with various
new functions that make the cartridge in use
work the best way it can. The DV-505 user is
requested to please read through this
brochure to enjoy its niceties fully.
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1. Foreword
As is commonly known, a pickup cartridge generates electricity by cantilever motion relative to motion of
cartridge proper. While cantilever stylus precisely traces signals recorded in groove of disk, cartridge proper
receives those signals faithfully provided that it is held motionless (free of vibration). Hence, the great role of
a tone arm.
How should cartridge be held motionless without adverse effects on signal trackability? The DV-505 has
solved this problem by adopting the unique (vertical/horizontal) Bi-axis system. The horizontally movable
main arm is of sufficient weight for vibration-free operation, and the adverse effect of weight on signal
trackability is nullified by use of an angular-radial compound bearing design. Conversely, the vertically
movable sub-arm is made so light that it never lets the stylus jump the groove of even a disk with warp(s)
previously unnegotiable.
Also, the DV-505 employs a double damper method -- inertia controlled dynamic damping type plus electro-
magnetic damping type -- to introduce an ideal solution to the problem of tone arm resonance in low
frequency range. This has generally been neglected about audio equipment that absolutely requires a flat
frequency characteristic.
2. Parts illustration
