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The FROG ® Series 

Custom handbuilt moving coil cartridges with the coil of a GRASSHOPPER III and the frontpole and suspension of the GRASSHOPPER IV: the best cartridge available for its price.

The FROG ® is available in three versions:


Standard Version:
Output 0.65 mV/channel, matched crystal copper-wire coils and extra magnet modification

Gold Version:
Output 0.65 mV/channel, matched crystal gold-wire coils and extra magnet modification

High Ouput Version:
Output 2.25 mV/channel, matched crystal copper-wire coils and extra magnet modification

Production time:
The production time for a The FROG ® cartridge after ordering is about two weeks. Please call your authorized distributor for delivery time.

specs
The FROG ® Series 
version a) Standard
b) Gold
c) High Ouput
stylus replacement see (*1)
stylus shape VDH - IS
stylus radii 2 x 85 Micron
frequency range 5 - 55.000 Hz
tracking force 13.5 - 16 mN
static compliance 35 Micron/mN
tracking ability 70 - 80 Micron
output voltage

a) 0.65 mV RMS
b) 0.65 mV RMS
c) 2.25 mV RMS

channel unbalance < 0.3 dB
channel separation

> 35 / > 30 dB

stylus tip mass 0.32 Milligram
system weight 8.2 Gram
vertical tracking angle 22 Degrees
load capacitance see (*2)
load impedance

a) 500 (> 200) Ohm
b) 500 (> 200) Ohm
c) 47k (> 1k) Ohm

eff tone arm mass 6 - 10 Gram
moving coil resistance

a) 21 Ohm +/- 10%
b) 16 Ohm +/- 10%
c) 96 Ohm +/- 10%

extra info

(*1): Stylus replacement and other services available on request

(*2): Non critical

Distributors

Find a distributor:

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