Head-Fi.org › Forums › Misc.-Category Forums › Video Games Discussion › Mad Lust Envy's Headphone Gaming Guide: (Update: 7/9/2014: Ultrasone HFI-15G Added)
New Posts  All Forums:Forum Nav:

Mad Lust Envy's Headphone Gaming Guide: (Update: 7/9/2014: Ultrasone HFI-15G Added) - Page 885

post #13261 of 25780
Thread Starter 
The hiss is inherent in the sound regardless of volume. Whether you max out the Mixamp or have the Mixamp at low volume and raise the external amp volume, it will be the same exact hiss. Once you reach a certain volume level, it will hiss. Maxing out the Mixamp ensures you get all the bit resolution.
Edited by Mad Lust Envy - 4/26/13 at 9:09pm
post #13262 of 25780

hmm, still confused. My mixamp rx5.8 at 75% volume exhibits zero hiss (I swear, zero :) So does keeping the volume at 75% but then adding a amp create louder volume with no hiss (sorry, if i am being a idiot lol) and did you have a opinion of E11 being a worthy portable upgrade? thx!

post #13263 of 25780
Thread Starter 
Once you pass that specific decibel level, it will hiss, regardless of how good the external amp is. Like I said, the hiss is embedded in the Mixamp signal. So after a certain decibel level, it will start hissing.

The E11 is too weak of an amp to gain much volume past what the Mixamp gives. Remember this: FWIR, a 2db boost in volume requires double the power. So unless the amp is 2x (actually, a bit more) as power as the Mixamp maxed out, you won't gain any volume.
Edited by Mad Lust Envy - 4/26/13 at 9:22pm
post #13264 of 25780

I can reference that even with something like an O2 maxed out, you won't gain much more volume over the mixamp.

post #13265 of 25780
Thread Starter 
Yeah, people need to understand, that volume doesnt 'stack'. The attached amp HAS to be basically around multiple times the power just to gain a noticeable amount of volume boosting.

Basically, if you want 3 extra decibels, the amp has to be 3x as powerful as the Mixamp. Desktop amps like the E9 or Magni would be around 4x-5x as powerful, which is why you would gain some noticeable volume over the Mixamp.

Also, the gain on the amp is also important. My old SA-31 was stupid powerful, but the gain setting was too low for double-amping duty.
post #13266 of 25780

OK, cool, thx for the info... mixamp @ 32ohms is 70mwatts. I'll do some searching for high power portable amps and see what I come up with :)

post #13267 of 25780
Thread Starter 
Yeah, people need to understand, that volume doesnt 'stack'. The attached amp HAS to be basically around multiple times the power just to gain a noticeable amount of volume boosting.

Basically, if you want 3 extra decibels, the amp has to be 3x as powerful as the Mixamp. Desktop amps like the E9 or Magni would be around 4x-5x as powerful, which is why you would gain some noticeable volume over the Mixamp.

Also, the gain on the amp is also important. My old SA-31 was stupid powerful, but the gain setting was too low for double-amping duty.

I honestly don't know what determines final volume output, but all you need to know is that a porgable amp is not gonna boost volume enough. Perhaps the E12 might.

70mw at 32ohm is quite low. To compare, the E9k has over 12x the power at that impedance.
Edited by Mad Lust Envy - 4/26/13 at 9:31pm
post #13268 of 25780

Looks like the Fiio E12 should have enough juice:

 

Mixamp 5.8 70mW@32Ω 

-----------------------

Fiio E09 900mW@32Ω 
Fiio E12 880mW@32Ω
Fiio E11 180 mW@32Ω 
 
Does the integrate DAC screw things up for my Mixamp Dolby signal vs straight up amp?

Edited by UnreelWorld - 4/26/13 at 9:40pm
post #13269 of 25780
Thread Starter 
The E12 doesn't have a dac. It's an amp only. And dacs wouldnt interfere with analog inputs. o_o

If you're referring to the Mixamp's DAC, uhh, it's necessary as without it, you can't get Dolby Digital to then convert to DH.
Edited by Mad Lust Envy - 4/26/13 at 9:42pm
post #13270 of 25780
Thread Starter 
Double post
post #13271 of 25780

my bad on the dac on E12.. So specs wise you liked the mixamp combo with E09 desktop, the E12 seems very similar spec wise. i will go ahead and give it a go and report back the results! Thanks for help!

post #13272 of 25780
Thread Starter 
Like I said, it's not just about power. Gain is also a factor. I believe the high gain on the E9K was I THINK 12db. That really gave enough headroom for volume. Dunno what the gain on the E12 is, but it might not be as high, though I'm sure it's not low, knowing Fiio.
post #13273 of 25780

MadLust, here's what I found out regarding gain, your opinion please...

 

E09K Gain on=2.15V / Gain off=840mV

E12 <710 mV(Gain:high)

both state: gain 16db

 

That means less than zero to me so did that help? No reason for me to plunk down $130 for a stinker mixamp combo :)

 

thx!


Edited by UnreelWorld - 4/26/13 at 10:35pm
post #13274 of 25780
Thread Starter 
Just get the E9k or Magni. The E9K on low gain would run into problems adding extra volume to harder to drive cans, but not on high gain. The E12 has less than the E9K on low gain, so I'd skip that. The Magni has a pretty high gain at default, so thats your cheapest solution that works fine for 32ohm cans. The E9k may alter sound quality negatively as its best for 80ohm or higher.
Edited by Mad Lust Envy - 4/26/13 at 10:54pm
post #13275 of 25780

The thing about feeding a signal into an amp is that the amp has to, more or less, filter and balance that signal to line level, and THEN amplify it, undoing anything the amp before it did, unless that amp brickwalled and clipped the signal, killing dynamic range in the process.

 

It's not like a water-cooling loop, where you put two pumps in series and double the flow and/or pressure. Analog audio signals do not work that way.

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Video Games Discussion
Head-Fi.org › Forums › Misc.-Category Forums › Video Games Discussion › Mad Lust Envy's Headphone Gaming Guide: (Update: 7/9/2014: Ultrasone HFI-15G Added)