2. analog
  3. 127471-3820

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.
128x128tarraga
john_tracy
341 posts
 
Yes. You will have to set the "jumpers" for MC and to select the required load resistance. Read the owners manual. 

czarivey
5,946 posts
 
tube box most-likely won't be enough and you may need sut.
stereo5's avatar
stereo5
6,407 posts
 
I used mine with a Bob's Devices Cinemag 3440A SUT into my phono input and it sounded great.  The sound had more authority and detail through the SUT.  I believe the Denon is a 30 or 40 ohm load.
thuchan
1,009 posts
 
40 ohms load. You should go for a SUT. There is an interesting thread regarding the usage of SUTS or not on Agon.

More to discover