## Details

**Miyajima Lab ETR-Mono MC Specifications**

ETR-MONO can regulate a gain.

And ETR-MONO can regulate impedance.

Therefore, ETR-MONO realizes ideal frequency balance.

Numerical value of the left switch is the number of the winding of the coil of the InputCoil.

Numerical value of a central switch is the number of the winding of the coil of the OutputCoil.

An amplification rate is the ratio of the number of the winding.

The right switch can change the input impedance of the pre-amp.

For example, a user chooses 120 of Input for a cartridge of 6 Ω and chooses 3000 of Output.

It is a gain of 25 times. (27.5dB)

The calculation methods of Impedance are as follows.

25 times x 25 times x cartridge 6 Ω = 3,750 Ω = 3.75kΩ

Therefore, I recommend impedance of 3.9kΩ.

However, the user can regulate these numerical value for the preference of the sound.

If a user likes gentle sounds, please lower the impedance.

Numerical value of the reference for the impedance of the cartridge.

InputCoil

80 = 2-5 Ω

120 = 6-12 Ω

160 = 12-20 Ω

200 = 20-40 Ω

**Please find reviews below**

" **Analog Planet** " Review by Michael Fremer ( Stereophile )

http://www.analogplanet.com/content/mono-set-won%E2%80%99t-break-bank