Home theater bypass - pass through question


Apologies for this basic question.

Is HT pass through and HT bypass the same thing?
In general, does it always mean the same thing to different manufacturers?

Is it's purpose to allow the use of my front end speakers to be shared between my 2ch amp/pre combo and my HT receiver?

I currently have 2 sets of speakers for my front end and I'm changing up my amp/pre for 2ch listening and would like to get down to one set of speakers for the front end.

It seems from my research that some preamps (in regards to my 2ch setup) need to be on for the speakers to receive a signal from my HT receiver and some can be left off. This is just a design choice by the preamp builder and not a flaw in my reading apprehension? 

Thank you
Mike
flavo

Showing 5 responses by reubent

@flavo  - It should work fine. Did you find out if it needed to be turned on while using the HT bypass? If so, you'll have tube usage while watching HT stuff. That's the only downside of a tube based system used for HT purposes.

Good luck. I hope you love it.
@flavo  - Hey Mike. Since you already have an amp/pre-amp and the 2-channel rig's front speakers, you can try the combo system now, using what you have. The only difference between using what you have now, is that you will need to set the volume control on your pre-amp to a pre-defined position, such as "top dead center" or "7" or whatever. Just remember that every time you choose the HT source, you'll need to set the pre-amp volume control to that pre-defined position.

So, with what you have today, remove the front L&R speaker cables and speakers from your HT receiver. Run a pair of interconnects from the L&R front pre-outs of the HT receiver into an unused line-level input on your 2 channel pre-amp. Turn on your HT receiver. Set your pre-amp source selector to the new input you are using for the HT front speakers, turn the pre-amp volume control to the pre-designated position, run your HT receiver's setup routine. 

That should have you set up to power your L&R front speakers via the amplifier and speakers from your 2-channel setup.

The only additional complication of this setup, vs having a pre-amp with an HT bypass, is you have to remember which line level input you used for HT front and you need to set the volume control to the correct pre-designated position when you play HT, or the front speaker volumes will be off relative to the surrounds/center speaker.

I hope that make sense to you. Anyway, it doesn't cost anything to experiment. If you don't like it, put it back the way it was before.

Good luck, and enjoy.
@flavo  - I do enjoy a nice stout or porter. However, it's not necessary. I'm more that happy to help when I can.
@flavo  - Yes.

Set up your 2-channel system as normal. Run your 2-channel sources into your pre-amp or integrated amp. Same as any typical 2-channel setup.

For the HT portion, run interconnect cables from the L&R front pre-outs on the HT receiver into the HT bypass inputs of the pre-amp/integrated. Connect your center channel and surround speakers to your HT receiver. Connect your HT sources into the HT receiver.

To play your 2-channel system, just play it as you normally would. No need to even turn on the HT receiver. The play HT, turn on the 2-channel system and the HT system. Engage the HT bypass on the 2-channel system. Now the L&R front speakers will be powered by the amp of the 2-channel system and the center and surrounds will be powered by the HT receiver.

Don't forget to re-run your HT setup program after you've added the 2-channel system into the mix. If you don't the fronts won't be properly balanced with the other speakers.

Good luck. It can be a great way to have uncompromised 2-channel music sound quality and great HT too, all while only having one pair of front L&R speakers.
In my opinion, bypass and pass-through are the same. I've used both pre-amps and integrated amps with HT bypass (sometimes also called "processor loop") to good effect to consolidate my 2-channel system and HT system and use the same front L&R speakers. Works great and I've always felt it produced better sound quality than trying to use an multi-channel HT pre-amp/processor.