Denon AU-320 stepup transformer great with Denon 103-series cartridges

Denon AU-320 stepup transformer in great condition. This is THE stepup transformer Denon designed to be used with the 103-family of cartridges, although it works great with other cartridges as well. Selectable impedance, and you can connect two tonearms and/or two turntables to it simultaneously!

It is a pressure-up transformer for MC cartridges.

The change of two kinds of input impedance and two cartridges is possible.

A transformer is storing in the Mu shield top and also iron cases, and is suppressing the influence of the signal to noise ratio by external guidance noise.

The low capacity cord is adopted as an output cord.

The gilding terminal is used for an input-and-output terminal.

Rating of a mode
Form MC pressure-up transformer
Winding wire ratio (pressure-up ratio) 1:10, 1:36
Primary impedance 40ohm, 3ohm
Secondary impedance 4kohm
Frequency response 10Hz - 100kHz
Deflection (as opposed to 1kHz) Less than ±1dB
Right-and-left separation rate 60dB or more (20Hz - 50kHz)
Phase characteristic Less than (20Hz - 50kHz) 10 degrees
Magnetic shield Three-fold
Chord length About 1m
Dimensions Width 97x height 65x depth of 155mm
Weight 0.8kg

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