I just wanted to add two comments to the notice before:

To my delight, he encouraged me to buy one: no regrets!
He is married to the tuner TU 317, which confirms the consistency and Its validity overall.

To confirm what I say, I just plug into the amp tuner bought cheaply: a younger (and much lighter) Sansui T80.
Although dock also read glowing items relating to this tuner a pivotal time, what was my disappointment at receiving the same, we must significantly increase the volume to reach that of the TU 317 and the sound is incomparably poorer and certainly less pleasing to my ears ...

In conclusion, do not hesitate to marry the 317 to his bride, they form a couple really endearing!