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Is a Step-up Transformer needed?

Hi, I am using a Denon DL-103 with an Output Voltage of 0.3mV and a recommended load resistance of 100 Ohms or more except when transformer is provided (direct quote from instruction manual) and a Pro-Ject Tube Box SE which can be set to either 100 Ohm, 220 Ohm or 1kOhm. I am confused about the output voltage issue. Can I use any of these settings without the step-up transformer? Thanks.
tarraga

Showing 2 responses by john_tracy

john_tracy
344 posts
 
Yes. You will have to set the "jumpers" for MC and to select the required load resistance. Read the owners manual. 

john_tracy
344 posts
 
SUTs are 'pure' — head-amps add distortion

Transformers are NOT without their own distortion. Some just prefer that to the distortions generated by active devices such as FETs.

Some head-amps use batteries to solve the noise issue.

Batteries will not eliminate the inherent thermal noise of the individual components themselves. Current flowing though any resistance generates noise.
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