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HE-500, LCD2, D5000, DT770, SR80, on a speaker amp (Emotiva mini-X A-100) Project - Page 138

post #2056 of 3625
What exactly is this effect with a braided balanced cable?
post #2057 of 3625
Quote:
Originally Posted by davidsh View Post
 

The question is.. Topping TP60 or emotiva mini-x with the emo being slightly more expensive..

My question with any Topping based amp is the reliability since all the negative posts stated are about burnout.

post #2058 of 3625
Quote:
Originally Posted by davidsh View Post

What exactly is this effect with a braided balanced cable?

If the headphone has no shield like a decorative braided balanced cable and it's connected to a single ended amplifier like the mini-X you get no RFI noise protection and your cable can act as a wire antenna.

 

When a braided balanced cable is connected to a balanced amp you get common mode noise rejection because each wire picks up the same noise but it's 180 degrees out of phase so it gets canceled out when the + and - signals are combined at the speaker. A shielded, braided cable like Canare Star Quad gives you double noise protection from the cable shield and the star quad braid.

post #2059 of 3625
Quote:
Originally Posted by robrob View Post
 

I have my HE-500s connected directly to the Tripath amp with no resistors and I'm very happy with the sound. It could be that it would sound even better with resistors though. I only use about 40% of the volume knob so there's definitely enough power to handle resistors.

 

I have not listened to an Emotiva mini-X and I'm not claiming my $18 Tripath balanced push-pull amp board sounds better than the mini-X (but it might ;) ). I just want to make people aware of the mini-X's single ended output and its effect on unshielded balanced headphone cables.

@rob,  half of me want to throw $20 at this experiment and find out for myself what you are talking and compare for myself.  The other half of me keeps saying that "that money might be better spent on lunch".  Anyone in California, around the bay area, has a lepai or Topping and not the Emotiva?  We could get together for some sharing. :D

post #2060 of 3625

If there was a class t amplifier that I would hope to be great it would be this one

http://www.amazon.com/Carot-One-Class-T-Amplifier-ERNESTOLO/dp/B008Z5HCT4

 

Its the prettiest looking little amp I have seen. But noone knows much about it with headphones. 3 watts is the headphone out. 15 watts x2 for speakers.. with a tube

 

I am content with the emotiva the above is a looker though.

post #2061 of 3625

That $20 won't even get you a good lunch in the Bay Area but you'll always have a need for a nice little amp. Who knows, you might pull that amp card out of a drawer in 20 years and say, "Cool, I'll set the photon shifter to 12 volts and fire this little terror up!"

post #2062 of 3625
Quote:
Originally Posted by grizzlybeast View Post
 

If there was a class t amplifier that I would hope to be great it would be this one

http://www.amazon.com/Carot-One-Class-T-Amplifier-ERNESTOLO/dp/B008Z5HCT4

 

Its the prettiest looking little amp I have seen. But noone knows much about it with headphones. 3 watts is the headphone out. 15 watts x2 for speakers.. with a tube

 

I am content with the emotiva the above is a looker though.

The Carot One looks like a Tripath TA2020 or TA2024 with the tube probably used as a buffer. It looks cool but $300 is a little steep.

post #2063 of 3625

steep yes but it already has a headphone out and you can use speaker taps. But yeah too steep for me atleast. I would buy that next before the lyr being as I already have an emotiva.

post #2064 of 3625
Quote:
Originally Posted by robrob View Post
 

That $20 won't even get you a good lunch in the Bay Area but you'll always have a need for a nice little amp. Who knows, you might pull that amp card out of a drawer in 20 years and say, "Cool, I'll set the photon shifter to 12 volts and fire this little terror up!"

Hey hey, where do you live in the bay area?  $20 would get a killer lunch sashimi plate in Campbell.  :D

post #2065 of 3625
Quote:
Originally Posted by fluidz View Post
 

I'm confused as to what to do next.

 

My previous Emotiva - now returned, hissed at 35% volume on the pot, and had a low level hum even when the Volume Pot was turned all the way down.  The hum wasn't too bad, but with no sound playing you could definitely hear it.  Since returning my Emotiva as there was a static issue with the Volume Pot, I've had nothing to pair with my He-500's.

 

I've been Amp'less for about two months and looking to buy another amp end of this month so I can get back down to enjoying the He-500's.  The thing is it'll have to be one with speaker taps as i snipped the He-500's wire, unless I buy another cable of course.

 

The low level hum bothered me on the Mini X, any tiny flaws bother me and I spend hours trying to fix them rather than enjoying my gear - I'm sure others can relate.

 

I've since upgraded my Dac from an internal sound card to an external, The Musical Fidelity M1, I'm wondering if this would pair nicely with the A100 - any thoughts/experience with both?

 

Shipping over here to the Uk from the US will cost a fair bit more than US folk pay, and to find out the low level Hum is still present with a new unit would just drive me Crazy.  What's the next best thing without a hum? 

I would be very mad, especially when I paid twice having extra VAT, enormous shipping cost, customs etc

 

and I would like all my money back

 

that's why I asked emotiva crew to extra check my unit for hissing, distortion measurement, channels imbalance, but to be honest - I doubt they did that, I just hope they have some nice quality control ...

 

international shipped amps should have extra attention beacuse of it and I hope they are serious about that

 

did emotiva return all the money ? how it ended ? I mean for the crap sake - If I wanted buzzing / hissing amp I would go for the tubes, that's why I will never go back to tubes and want some nice SS design with no hint of that


Edited by magicman - 10/28/13 at 2:55am
post #2066 of 3625
Quote:
Originally Posted by magicman View Post
 

I would be very mad, especially when I paid twice having extra VAT, enormous shipping cost, customs etc

 

and I would like all my money back

 

that's why I asked emotiva crew to extra check my unit for hissing, distortion measurement, channels imbalance, but to be honest - I doubt they did that, I just hope they have some nice quality control ...

 

international shipped amps should have extra attention because of it and I hope they are serious about that

 

did emotiva return all the money ? how it ended ? I mean for the crap sake - If I wanted buzzing / hissing amp I would go for the tubes, that's why I will never go back to tubes and want some nice SS design with no hint of that

Emotiva in general has good quality control. We are using a stereo amp meant to drive speakers at 8 or 4 ohms to a headphones with a impedance of 50 ohms which will raise the noise floor of any speaker amp. For many that have tried it here the noise floor is not a problem with their insensitive planner headphone that are being used. The previous poster now has a noise issue with his previous amp with static from the volume pot.

post #2067 of 3625
The emo would cost me a whopping 490$!
post #2068 of 3625

it cost me about 340$ (shipped to Poland in EU)

 

and thats actually nothing comparing to some top shelf wooaudio stuff I used to buy in the past ... :D

 

oh yeah, package is at customs clearance in Poland ;] that was fast - 5 days ;]


Edited by magicman - 10/28/13 at 11:13am
post #2069 of 3625

Does anyone have any idea as to how long the current Emotiva sale will continue? I am debating getting this for my HE-400. Seems like overkill, but the price is so good compared to other SS amps. 

post #2070 of 3625
2 weeks or till all stock is sold
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