Features:
Better control of the timbre of each frequency can make the intermediate frequency warm and generous, the low frequency is full and elastic, and the high frequency is bright and dry.
Made of high quality material, strong, wear-resistant and durable.
Ruby and Sapphire double needle, Ruby for LP records, Sapphire for 78 speed gramophone record.
Specifications:
Color: Black
Material: Ruby, Sapphire, plastic
Applicable records: for LP records, for 78 RPM records
Size: 34 x14x13mm/1.34 x0.55x0.51"
Weight: 16g
Structure:
Polarity: When the needle tip is driven horizontally (left and right), the output voltage phase of the left channel (L) and the right channel (R) should be the same.
Stylus: Ruby Sapphire
Output voltage:
When the frequency F is 1kHz, the vibration velocity V in the direction of sound groove L or R is 3. When the vibration speed of 54 cm/s or transverse sound groove is 5 cm/s, the output voltage should be within ± 4DB to the specified value (250MV)(I .e., within the range of 200 ~ 300MV).
Needle pressure: when testing medicine barrel tracking capability and electrical parameters, measuring needle pressure should be measured within the range of 40±10MN.
Needle life: the wear life of Ruby needle is about 120H