I would second Mitch2 both on building own with the least attenuation that works and on reducing gain at individual inputs. The second point may be more important on older equipment where phono/tuner outputs are lower than on the digital source. Can make a big difference in "listenability".
If not here someone at the diyaudio.com will tell what value to use. It's pretty easy to diy and you can pick the parts. Good luck.
If not here someone at the diyaudio.com will tell what value to use. It's pretty easy to diy and you can pick the parts. Good luck.