Through its simple elegance and the use of an extremely efficient shielding (Mu-metal),
the Shelter 411 MC Step-Up Transformer provides a pure and unequaled listening
experience! Through its outstanding signal to Noise ratio, The Shelter of 411 is
the ideal combination for your Shelter 501 MK II and Shelter 901cartridges.
Recommended Input Impedance: within 15 ohm (DC resistance of MC cartridges,
limit 25 ohm)
Load Impedance: 47 kohm to 50 kohm
Frequency Response: 20Hz to 50kHz
Step-up Ratio: 32dB (about x40)
Dimensions: 5 9/16" x 4 11/16" x 2 5/8"
Weight: 2lbs 5.3oz.