Vintage Technics EPA-B500 Tonearm System // EPA-A501H Arm Unit / Dealer Demo

The EPA500 tonearm system features interchangeable arm units, titanium nitride tapered pipe arm, dynamic damping system, Gimbal suspension arm base for various arm units, helicoid height adjustment ranging up to 20mm and minimum bearing friction of 7mg in all directions.

RESTORATIONS

• Full 30-point service check
• Cleaned controls, switches, and chassis

SPECS

EPA-A501H Tonearm

Type   Dynamic damping type arm unit

Arm pipe   Titanium Nitride (TiN) Taper Pipe

Effective arm length   250mm

Arm rear length range   68 mm ~ 85.5 mm (from arm supporting point)

Overhang   15mm

Horizontal tracking error angle   +1° 6' (30 cm record inner circumference) / +2° 6' (30 cm record circumference)

Arm effective mass   8g (without cartridge)

Compatible Cartridge Weight   5g ~ 7g

Compatible Cartridge Compliance   10-14x10-6Cm / dyne (dynamic, 100 Hz)

Cartridge Mounting Dimensions   JIS Standard 12.7 mm (1/2inch) Mounting Interval

Shell terminal lug   Φ 1.2, 4-pin

EPA-B500 Gimbal

Type   arm base with arm unit interchangeability

Pivot construction   gimbal suspension type

Arm height range   42 to 62mm

Friction   7mg vertical/lateral

Mounting hole diameter   62mm

Arm type   interchangeable arm unit with dynamic damping system

Effective length   250mm

Mounting distance   235mm

Overhang   15mm

Effective arm mass   8g (without cartridge)

Applicable cartridge weight   5 to 7g

Stylus pressure   0.75 to 1.75g (2.75g with shell weight)

Resonance peak   below 6dB