- 14 Posts. Joined 11/2014
- Location: British Columbia, Canada
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question about proposed audio/video setup
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That looks too complicated, and possibly even incorrect. Here's a few thoughts how I would run it:
- If your TV has an optical output, I'd connect it through the DAC with USB and Toslink inputs and use input selection on the DAC to toggle between TV and PC
- Not sure what kind of amp and speakers you have in mind, but switching between speakers and headphones after the amp may be a problem due to different signal levels required. If you have active speakers in mind that may work, but I would prefer to have separate volume control for the speakers.
- You could also consider a DAC/preamp/HPamp combo and have hour headphones switch plugged to the HP out in the DAC, and use the line out into the speaker amp (or directly to active speakers)
- That a/b/c/d switch seems like an overkill to me. Can't you just unplug one headphone and plug in another?
- 10,125 Posts. Joined 9/2006
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I would rather see a line-out from the DAC go directly to the powered speakers. There's no reason to send input to powered speakers through a headphone amp. I'm assuming the powered speakers have their own volume control.
As a general rule, you want to amplify a signal only once between the source and the drivers (speakers or headphones), and if possible, you want the amplifier immediately before the drivers in the chain.
I think I might give this little sucker a try, especially if your TV has a digital optical output : http://us.creative.com/p/sound-blaster/sound-blaster-omni-surround-5-1
I wouldn't use the 1:4 switch. I have yet to see switches similar to those that didn't eventually cause issues. The jacks are just not very high-quality and they can become scratchy & noisey. I suspect you will not change headphones as often as you may think. If you are really worried about the jack on the amp, then use a short good quality extension cable that you can leave plugged-in to the amp.
Happy to help.
A few more thoughts:
- If you're planning to get a receiver, hold off the purchase of the headphone amp. The headphone out in the receiver may be good enough - at least to begin with.
- The same goes for DAC: receivers usually can handle this job quite well. This way you also avoid all the switches and y-splitters as the receiver can handle all these functions (except the headphone switch)
- In that setup PC becomes a HDMI input to the receiver and TV is HDMI output (no direct connection from PC to TV necessary). You may still need to feed the sound back from TV to the receiver (most likely via Toslink), if your TV is anything more than a dumb display - i.e. if you actually use the TV tuner.
- You are probably worrying too much about the durability of headphone connectors: they are designed to be used. In fact with time the contact surfaces can get oxidized or just dirty and re-plugging headphones may actually improve connection.
Have fun putting it all together!