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HE-500, LCD2, D5000, DT770, SR80, on a speaker amp (Emotiva mini-X A-100) Project - Page 242

post #3616 of 3625
The manual quotes 107 dB SNR at 1 watt, a weighted. Not bad nor good I think. Can do the calculations later.
post #3617 of 3625

So, calculated that equals 8dB into 90dB/mW, 32 ohm speakers. I used the stereophile measurements (106 dBA, 2.83V, 8 ohm, broadband). Hope that helps. The noise is 28 dB unweighted.

 

That is actually pretty good for such a high power amp. Won't guarantee that you get similar results, but mostly the noise is lowest at low volume settings after all.

 

It might be silent with no hiss, 8dB is very little noise. 


Edited by davidsh - 7/28/14 at 11:23am
post #3618 of 3625

Thanks to everyone for taking the time, I appreciate you offering me your thoughts. I think I will have the cable made. Why not have a balanced option? Plus I would think that the NAD should provide a very good amount of current. Thanks again.

post #3619 of 3625
Quote:
Originally Posted by Sonic Defender View Post
 

Thanks to everyone for taking the time, I appreciate you offering me your thoughts. I think I will have the cable made. Why not have a balanced option? Plus I would think that the NAD should provide a very good amount of current. Thanks again.

 

You need to make sure the ground for L and R are not tied together, if you want to used a balanced cable.  If they are  tied together there is no advantage of a balanced cable!

post #3620 of 3625
Quote:
Originally Posted by cute View Post
 
Quote:
Originally Posted by Sonic Defender View Post
 

Thanks to everyone for taking the time, I appreciate you offering me your thoughts. I think I will have the cable made. Why not have a balanced option? Plus I would think that the NAD should provide a very good amount of current. Thanks again.

 

You need to make sure the ground for L and R are not tied together, if you want to used a balanced cable.  If they are  tied together there is no advantage of a balanced cable!

Besides, you could blow amp and headphones.

post #3621 of 3625

That wouldn't do at all. Thank you both for the guidance, I will be sure to check into that before going ahead with the cable. I will actually contact NADs technical service department and get the info from there just to be 100% sure.

post #3622 of 3625

the other night I got brave and hooked my AKG Q701 directly to the speaker taps of my Mini-X that I have been using my my nearfield speaker rig. I cut the 3.5mm end off of the longer supplied cable that I never use and decided to hook it up. I used a multi-meter to figure out which color wire was ground, left, and right and quickly wired it up. It gets loud at the 8 o'clock position on the volume knob so there is barely any throw on the knob, but the knob has fine enough control to dial in the volume I desire so it works just fine. The other option at my disposal is to set a negative preamp level in the Equalizer APO program I use for system wide EQ. If I set a -6dB preamp level it gives me a bit better control of the volume which lets me bring it up to about 9 o'clock on the knob. It is almost dead silent with the music paused, so no unbearable hiss to speak of.

 

The sound is ridiculous. I haven't really used my Q701 in a long time, but I don't remember them sounding quite this good. Huge soundstage, great imaging, killer bass impact(for a Q701 anyway) and tons of detail. EQ'ing them with Equalizer APO is nice as well. I added just a touch of sub-bass, have a very narrow mild cut at 2k, another cut centered at 7k and then added a touch of sparkle centered at 14k. This is definitely the best I have heard the Q701.

 

 

post #3623 of 3625
Quote:
Originally Posted by jasonb View Post
 

the other night I got brave and hooked my AKG Q701 directly to the speaker taps of my Mini-X that I have been using my my nearfield speaker rig. I cut the 3.5mm end off of the longer supplied cable that I never use and decided to hook it up. I used a multi-meter to figure out which color wire was ground, left, and right and quickly wired it up. It gets loud at the 8 o'clock position on the volume knob so there is barely any throw on the knob, but the knob has fine enough control to dial in the volume I desire so it works just fine. The other option at my disposal is to set a negative preamp level in the Equalizer APO program I use for system wide EQ. If I set a -6dB preamp level it gives me a bit better control of the volume which lets me bring it up to about 9 o'clock on the knob. It is almost dead silent with the music paused, so no unbearable hiss to speak of.

 

The sound is ridiculous. I haven't really used my Q701 in a long time, but I don't remember them sounding quite this good. Huge soundstage, great imaging, killer bass impact(for a Q701 anyway) and tons of detail. EQ'ing them with Equalizer APO is nice as well. I added just a touch of sub-bass, have a very narrow mild cut at 2k, another cut centered at 7k and then added a touch of sparkle centered at 14k. This is definitely the best I have heard the Q701.

 

 

This speaker amp usage seems to be the rage these days. The HD 800 had a post as to how great that HP sounded with a JVC receiver. I myself use a speaker amp with the HE 4 and 6. The sound takes on a very deep, extended 3D quality no doubt.

post #3624 of 3625

I use the emotiva with all my cans, though I prefer my Stax amp over emotiva+srd-6 adapter.

post #3625 of 3625
Quote:
Originally Posted by kothganesh View Post
 

This speaker amp usage seems to be the rage these days. The HD 800 had a post as to how great that HP sounded with a JVC receiver. I myself use a speaker amp with the HE 4 and 6. The sound takes on a very deep, extended 3D quality no doubt.

I was originally using an old Pioneer SX-750 receiver to power a set of nearfield speakers and my headphones. Then I decided that I wanted to try the Emotiva Mini-X with my nearfield speakers. I noticed an improvement in sound so I sold the SX-750, which left me with no headphone amp. At first I didn't care as I really wasn't listening to headphones much, then eventually I wanted to at least have the option to use the cans I have, so I was on the verge of buying a Schiit Magni or Vali. Then one night I decided I might as well just try hooking the Q701 right to the speakers taps of my Mini-X just to see what it does instead of spending money on a cheap headphone amp. I never used the super long cable that AKG supplies with the Q701 so I figured I might as well hack it up and try hooking it to the speaker taps. The first night I simply put the stripped wires in the speaker taps. The results were very good, so the next day I went out and got some banana plugs so I could quickly and easily switch between my speakers and the headphones. So now my Mini-X is a dual purpose amp that makes the Q701 sound better than I've ever heard them, granted the only things I've plugged them into were a Fiio E17, and an old SX-750. 

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