2X Phonograph Turntable Dual Moving Cartridge Stylus Vinyl Needle Replace for LP 78 Vinyl Needle Double Ruby

2X Phonograph Turntable Dual Moving Cartridge Stylus Vinyl Needle Replace for LP 78 Vinyl Needle Double Ruby leírása

Better control of the tone of each frequency, can make the middle frequency warm and generous, the low frequency is full and flexible, and the high frequency is bright and not dry.
Made of high-quality materials, strong, wear-resistant and durable.
Ruby and sapphire dual needles, Ruby for LP records and Sapphire for 78-speed vinyl records.

Structure:
Polarity: When the needle tip is driven horizontally (left + right), the phase of the output voltage of the left channel (L) and the right channel (R) should be the same.
Stylus: Ruby+Sapphire
The output voltage:
When the frequency F is 1kHz, when the vibration velocity V of the sound in the L or R direction is 3.54CM/S or the vibration velocity of the transverse sound is 5CM/S, the output voltage should be within +/- 4DB relative to the specified value (250MV) (Ie: within the range of 200~300MV).
Acupuncture pressure: When testing the tracking ability and electrical parameters of the cartridge, the acupuncture pressure should be measured within the range of 40 +/- 10MN.
Note:
Small objects, Keep away from children to avoid being eaten by children.
Material: plastic+metal
colour: black

Package Contents:
2 x LP Vinyl Needle