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Audio amplifier.

post #1 of 18
Thread Starter 
(Mind the slang, I is bored)
Allo everyone. I is looking for an audio amplifier. A damn good one. Anyone know of any?
Edit:
Channels: Up to 7.1. Fine with 5.1. 2.1 obvious.
I/0: Not specific.
Budget: I have no idea how much these cost so limitless.

Other: All in one or not is fine. I do not care.
Edited by Paratrooper1n0 - 8/21/11 at 10:26am
post #2 of 18
How many channels, I/O, impedance, budget etc?
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post #3 of 18
Thread Starter 
Quote:
Originally Posted by Skripka View Post
How many channels, I/O, impedance, budget etc?
Updated.
And, "impedance"?
post #4 of 18
Ohms
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post #5 of 18
Thread Starter 
Quote:
Originally Posted by MasterFire View Post
Ohms
It's been a while since I researched audio or electricity. Ohms?
Edit: I have no idea.
post #6 of 18
Quote:
Originally Posted by Paratrooper1n0 View Post
It's been a while since I researched audio or electricity. Ohms?
Edit: I have no idea.
Since it sounds like you already have speakers look on the back of the speaker cabinets and see if they have an impedance marking. it would look something like 8Ω. 8 ohms is the most common in home stereos so I would assume that is what you have but check just to be sure.
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post #7 of 18
Thread Starter 
Quote:
Originally Posted by Binski99 View Post
Since it sounds like you already have speakers look on the back of the speaker cabinets and see if they have an impedance marking. it would look something like 8Ω. 8 ohms is the most common in home stereos so I would assume that is what you have but check just to be sure.
I cannot check as I am not at home and will not be for a while. That and I will be upgrading soon.
post #8 of 18
Short version, you need a budget.

Quote:
Originally Posted by Paratrooper1n0 View Post
Updated.
And, "impedance"?
Impedance is a speaker specification measured in Ohms or Ω. Important to bear in mind when putting a setup together.

Do you have a powered subwoofer (one with its own power supply), or do you have a passive unit that is just speaker-cable?

Amps as with speakers, sky is the limit in terms of price. There are amp units that cost more than my car. What adds $$$$ up is sound quality, I/O, channels etc. Multi-channel amp units aren't that common, and you won't find one in any B&M store IME. You'll find lots of A/V receivers with lots of features you probably don't care about.

Are you planning on using analog inputs or are you wanting to use optical? Are you aware of Windows' problem with optical outputs, if you're wanting to use optical TOSLINK or S/PDIF jacks? FYI-this is much more complicated than you'd like. It really depends on what you want exactly you want to do. You need a plan of attack how you're going to plug everything together going in, because it is very easy to get lost in options....otherwise you can easily buy VERY $$$$ gear that won't do what you want or won't work together at all.

Usually for low end A/V receivers $300USD price tag you're better off buying used as you get far better gear for the price.
Edited by Skripka - 8/21/11 at 10:38am
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post #9 of 18
Thread Starter 
Quote:
Originally Posted by Skripka View Post
Short version, you need a budget.



Impedance is a speaker specification measured in Ohms or Ω. Important to bear in mind when putting a setup together.

Do you have a powered subwoofer (one with its own power supply), or do you have a passive unit that is just speaker-cable?

Amps as with speakers, sky is the limit in terms of price. There are amp units that cost more than my car. What adds $$$$ up is sound quality, I/O, channels etc. Multi-channel amp units aren't that common, and you won't find one in any B&M store IME. You'll find lots of A/V receivers with lots of features you probably don't care about.

Are you planning on using analog inputs or are you wanting to use optical? Are you aware of Windows' problem with optical outputs, if you're wanting to use optical TOSLINK or S/PDIF jacks? FYI-this is much more complicated than you'd like. It really depends on what you want exactly you want to do. You need a plan of attack how you're going to plug everything together going in, because it is very easy to get lost in options....otherwise you can easily buy VERY $$$$ gear that won't do what you want or won't work together at all.

Usually for low end A/V receivers $300USD price tag you're better off buying used as you get far better gear for the price.
Can you link me to some product sites?
I have not ventured into the receiver and/or multi-channel (more than 2.1) world yet. And yes, I plan on sticking with analog.
post #10 of 18
Quote:
Originally Posted by Paratrooper1n0 View Post
Can you link me to some product sites?
I have not ventured into the receiver and/or multi-channel (more than 2.1) world yet. And yes, I plan on sticking with analog.
BestBuy has lots of A/V receivers to look at from $200-1000USD or so, and you probably have one near you so you can physically see units. What gets you, is that for your usage A/V receivers have LOTS of features you won't care about like iPod docks A/B/C speakers sets for different rooms etc. You probably don't need/want more than RCA multi-channel inputs.

Consumer reports has a handy guide to get started with home theater:
http://www.consumerreports.org/cro/e...ng-started.htm

If you're curious here's how my setup works:

Soundcard: Asus D2X Xonar (as DAC)--->Analog output (5.1) to Stereo-mini-to-RCA cables (X3 cables for 6 speaker channels)

RCA cables------->to STR-DE995 multi-channel inputs

DE995 output--->5.1 speakers with powered subwoofer.

If you're using analog outputs like me, your sound card is doing the DAC (digital-analog-convertor). As such you don't need/want an A/V receiver with lots of DAC options. Depending on your speakers, you may need to adjust your crossover frequency for when a given sound gets sent to the regular speakers and when it gets sent to the subwoofer channel. Since you're using your soundcard as DAC, to do this you need a driver-option to adjust it.

If you're in a small room, you probably won't care about the Watt-per-channel specification. What'll get you is powered versus unpowered subwoofers I/O on receivers. Buy for the speakers you have. These days most receivers are made with powered subs in mind.

One of the many parameters for audio quality is THD (Total Harmonic Distortion). My system (minus speakers), can do ~0.01% distortion. To buy a receiver new that can reach that is $500USD. I recently did all this shopping myself, start with Wiki if there is a term or abbreviation that you don;t understand. It ain't simple at all. In the new retail arena, it is cheaper to buy a home-theater-setup-in-a-box than a receiver alone. But customization and audio quality will likely suffer.

EDIT: Some big name games do not do multi-channel audio. For example Mass Effect 1 will only output audio in 2.1...whereas Fallout New Vegas does proper 5.1
Edited by Skripka - 8/21/11 at 11:00am
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