what exactly is ht bypass

thanx guys....this seems to be one of those things i really cant wrap my head round for some reason..odd as i have dismanteld..and 'remantled'..lol..my system a hundred times..let me tell u my system..perhaps that will give u guys a better idea here..currently i have a yamaha receiver..connected to a dreadnaught amp..3 channel....so..i have the outs from yammy going to L R C on theta..and surrounds and sub powered by yammy. I want to add a pre tube because i love listening to music. So..the pre has 2 outputs and an 'ht bypass'....one output would be for mains..one for sub...so..if i go mains then from yammy to ht input..then to dead?..center can still go from yammy to dread...ahh..i see..sub wont be powered by yammy..therefore..will not mesh into ht?..am i getting warmer on all this!!..lol..thanx for the anticipated help

The subwoofer can be a problem, although there a several work around solutions.

The sub needs to stay at the reciever to remain active at it's present level.

You could move it to the new tube preamp...this does involve some amount of trade off...loss of (LFE's).

I would go into detail regarding any advantage/dis-advantage....but I'm not yet clear on your goals, and don't want to confuse you with info overload.

In my system...which is setup for several playback options (audiophile, and non-audiophile), I do the easy way out....run more than one sub.

Dave

i dont know if this clears up the sub issue..but..i just re read the manual..it has the option for 2 inputs specifically for this scenario..it can be run into the l/r input for pre..and the lfe for surround...dont know if all subs have that..but it was a nice surprise...will that solve the sub problem

Yes, If you can switch between those two inputs...or the sub will do the switching for you.

Just make sure that the manual states that you can use both inputs at the same time...and not, one or the other.

Dave

thanx for the input guys...i am clear now..i may post again when the pre arrives...till then..cheers and happy listening