Tuesday, October 1, 2013

Multiple audio devices but only one set of speakers?

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Brennon Hi


I have Sattelite TV, an XBox 360, PS2, and a PC all sharing the same display (LED TV) and would like them all the share the same set of speakers, a 5.1 CA Surround sound system... I'm aware i will most likely need some form of hardware device to do this. They dont have to play at the same time for obvious reasons, and am having a hard time finding a device or even what the name of such a device would be to start looking.

Any help would be appreciated.



Answer
What you need is called an AVR or Audio Video Receiver. The AVR will be your central hub controlling source devices and directing video to your display and sound to your speakers. How are you currently using so many devices on the one display? I assume the LED TV has multiple inputs, possibly multiple HDMI inputs and it has source selection so you can select which of your source devices has the display. The AVR will be similar, you will want to choose an AVR that includes enough source inputs to handle all your devices.

Your speakers are output devices as is your display. If your TV has a built in receiver for over the air broadcast then it may also be a source device so your AVR will need enough inputs to include it as well. You will no longer select the source with the TV, you will be able to leave the TV source fixed and select sources with the AVR. It will send any video information to your display and audio to your speakers. It will include amplification for the speakers with the exception of any subwoofer. This will typically be an unamplified output intended for use with an amplified subwoofer.

There are a number of brands to consider in AVR's, Denon, Onkyo, HK just to name a few. Prices range from a few hundred to a few thousand dollars and you do tend to get what you pay for. For even higher quality you could select a preamp/processor instead of an AVR but this will require external amplification for all speakers. Preamp/processors typically range from just under $1000 to tens of thousands of dollars plus power amplifiers. Power amplifiers range from hundreds each to tens of thousands of dollars each. Generally, the more separate things are the more expensive and the better quality. Avoid AVR's with built in bluray players etc. These types of devices are typically inferior quality and if just one component fails, the whole thing becomes garbage.

mk

What are some ways to drastically reduce my electric bill?







and what's the lowest I could get it down to (for a small apartment)? thanks for help


Answer
Plug things like your TV and computer into plug strips with switches on them and turn off the strip when you are not using them. Otherwise these electronic items continue to draw power in "standby mode" (you can tell because they will still feel warm to the touch even though they are turned "off"). Also switche ALL your light fixtures to compact fluorescents (CFL's) or LED's. The only exception is a bathroom where you turn the lights on and off a lot and don't leave them on for more than a half hour each time. In that case there is little or no savings since fluorescents have a high power draw on startup.

Use high wattage items like hair dryers, coffee makers and toaster ovens sparingly. if you have an electric range or oven, use a small microwave for cooking instead -- a 750 to 1000 watt microwave will cook food faster than these other appliances, using less power. On hot days, open windows and use fans instead of AC. Use drapes and/or the stick-on window film to reduce solar heating of the house in warm weather. If you have separate heat for the apartment, get a programmable thermostat so it turns it way down during the day while you are at work and at night. I turn my heat down to 55 Fahrenheit at night but use an electrica heated mattress pad to warm up the bed for half an hour before turning it, then a down comforter/duvet to sleep under that traps the heat so i am cozy all night. The programmable turns the heat back on at 7:00 am so I can get ready for work in a warm house, then it shuts down again untl just before I come home from work.

Get an energy efficient refrigerator -- the fridge is one of the biggest power hogs in your place.

I cut my electric bill in half by using these methods.




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