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HE-500, LCD2, D5000, DT770, SR80, on a speaker amp (Emotiva mini-X A-100) Project - Page 140

post #2086 of 3639
Preamp not necessary. You'd hook up from stx RCA to emo RCA.
post #2087 of 3639
Quote:
Originally Posted by Ethereal Sound View Post
 

I have a couple of questions regarding the emotiva and the HE-500. First of all, is it necessary to have a preamp? Second of all, I would be using it from a asus xonar essence stx and considering that I'm relatively new to this, how would I hook it up?

 

Edit: I do have a banana plug btw.

 

Not really. You get enough volume knob play. Someone else will fill you in on the cable types.

post #2088 of 3639

Oh, awesome. Thanks, that's all the info I need to pull the trigger on these.

post #2089 of 3639
Quote:
Originally Posted by davidsh View Post

Preamp not necessary. You'd hook up from stx RCA to emo RCA.

Sorry to ask but I don't really get much searching for the kind of cable I would need to connect them. Would you happen to know of a  place where I can buy one?

post #2090 of 3639
Quote:
Originally Posted by Ethereal Sound View Post
 
Quote:
Originally Posted by davidsh View Post

Preamp not necessary. You'd hook up from stx RCA to emo RCA.

Sorry to ask but I don't really get much searching for the kind of cable I would need to connect them. Would you happen to know of a  place where I can buy one?

For emo->HE-500 you have 3 options. You can buy a custom made cable that terminates in banana plugs, you can go DIY with your cable, or you can get a jack to banana plugs adapter.

 

The addapter and DIY are 2 cheap options. The custom made cable will cost you more.

 

I don't know where you can buy an adapter.

 

For the STX->emo you'll just need two RCA to RCA cables, nothing fancy.

post #2091 of 3639
Quote:
Originally Posted by Ethereal Sound View Post
 

Sorry to ask but I don't really get much searching for the kind of cable I would need to connect them. Would you happen to know of a  place where I can buy one?

For the asus xonar essence stx. Just a standard stereo RCA male to RCA male cable two on each end. If you are in USA any Radio Shack or Walmart will carry them.


Edited by john57 - 10/29/13 at 3:44pm
post #2092 of 3639

I see, thanks a lot! One last question. Would it be possible for met to use my objective 2 as a preamp and would it be advantageous? 

post #2093 of 3639
Quote:
Originally Posted by Ethereal Sound View Post
 

I see, thanks a lot! One last question. Would it be possible for met to use my objective 2 as a preamp and would it be advantageous? 

 

^absolutely no need at all.  For cabling, if you are handy and have access to tools, you can go the extreme DIY route like I did. :D

post #2094 of 3639
Quote:
Originally Posted by koiloco View Post
 

 

^absolutely no need at all.  For cabling, if you are handy and have access to tools, you can go the extreme DIY route like I did. :D

still very jealous of that DIY. It looks perfect.

post #2095 of 3639
Quote:
Originally Posted by koiloco View Post
 

 

^absolutely no need at all.  For cabling, if you are handy and have access to tools, you can go the extreme DIY route like I did. :D

 

Woah, actually took me a second to see what you did there. Wow, that's pretty awesome! So O2 as a preamp is not necessary at all? If that's the case, why do some people need to preamp at all?

post #2096 of 3639
Quote:
Originally Posted by Ethereal Sound View Post
 

 

Woah, actually took me a second to see what you did there. Wow, that's pretty awesome! So O2 as a preamp is not necessary at all? If that's the case, why do some people need to preamp at all?

One of the main reasons is that the input signal from their sources might not be high/strong enough to gain sufficient volume from the amp.  These days, a lot of DACs and even sound card outputs are following a standard 2.0v unbalanced, double that or so for balanced output from the same component.  These standards are not set in stone and not observed by all manufacturers.  In pro-audio/recording, I use microphone pre-amp to have higher gain input while keeping noise level under control.  For HP amps, using pre-amps is often said to give better definition and dynamic. This, I haven't had a chance to experience yet so I won't comment on whether it's true.  There are other minor benefits of using pre-amps but generally, what I just said are the main ones.

Also, if the O2 is not designed to be used as pre-amp, you will be double-amping which could have some negative side effects including distortion at certain volume.

Actually, when thinking about it, the Emotiva might even benefit from a weaker input signal.  You will have more room to crank up the volume.  I believe M-13's concero DAC output signal is not 2.0V.  He probably could tell u more about this.


Edited by koiloco - 10/29/13 at 5:51pm
post #2097 of 3639
Quote:
Originally Posted by koiloco View Post
 

One of the main reasons is that the input signal from their sources might not be high/strong enough to gain sufficient volume from the amp.  These days, a lot of DACs and even sound card outputs are following a standard 2.0v unbalanced, double that or so for balanced output from the same component.  These standards are not set in stone and not observed by all manufacturers.  In pro-audio/recording, I use microphone pre-amp to have higher gain input while keeping noise level under control.  There are other minor benefits of using pre-amps but generally, what I just said are the main ones.

 

Ah I see. Well thanks for the info.

post #2098 of 3639
Quote:
Originally Posted by Ethereal Sound View Post
 

I see, thanks a lot! One last question. Would it be possible for met to use my objective 2 as a preamp and would it be advantageous?

Did you mean if the objective 2 has an advantage over the asus xonar essence stx? If this is the case the asus xonar essence stx will drive the Emotiva mini-X A-100 just fine. You are not driving a microphone over a long cable run. The asus xonar essence stx has very good signal to noise ratio and it is shielded for use in a PC. Is the objective 2 a headphone amp?

post #2099 of 3639

Yeah, the O2 is a headphone amp. And when I was asking if it would be advantageous, I was just wondering if it would make an audible difference.

post #2100 of 3639

My feeling if you have the asus xonar essence stx is to stick with it. The O2 is amp and if the output is too high it will overload the speaker amp inputs before it even gets to the outputs. There can be a impedance mismatch since it is not a pre-amp per say  Using an amp to drive another amp is not always the best idea. I can give more tips later when I done the Emotiva mini-X A-100 installation and listening tests.

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