I have a small (hopefully not stupid) question. I have a GK 200RCB and a Yorkville Bassmaster 400. I love the sound of the GK but it is underpowered for bigger speakers (100W into 4 ohms). I have plugged the headphone jack of the GK into the -6 db input jack of the Yorkville. It sounds great without any additional noise. It appears to be working great without any problems. My question is...is this an ok and safe? I am pretty ignorant to a lot of the technical stuff but it made sense in my at the time. Sorry again if this is a dumb question I just don't want to do any damage to any of the gear. Thanks, and this forum has been a very helpful resource.