@soix Yes, I thought he was shopping for equipment. What you suggest will work but isn't as convenient. I have one tip. Don't ask me how I know. Frankly I rejected it and insisted on HT bypass. But sometimes I"m a bit obsessive, I admit it.
Your point on setting a reference volume is very important. An HT bypass sets the volume at 100%. Many people try to emulate this by setting the volume at 100%. DONT DO THIS.
Eventually you will switch back to music and forget to turn it down. Choose some volume that won't break anythig in your system or your ears. Your HT system will have a balance setup you have to go through anyway (some have microphones and autobalance). Go through the setup with the 2 channel volume set at the reference volume. Pick something loud so that the HT preamp isn't maxxed out, but something that you're ok playing music at.
Jerry