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Recommend a desktop amp for Titanium HD + HD 598 - Page 3

post #21 of 58
Thread Starter 
Wow. Well im glad everyone is getting excited over this topic haha I was on the fence about whether or not I would get an amp but I think I will just so I can throw in my two cents on this debate. Thank you to everyone I have learned alot just from reading these posts. This is what ocn is all about!

Now continue smile.gif
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post #22 of 58
Quote:
Originally Posted by LmG View Post

Wow. Well im glad everyone is getting excited over this topic haha I was on the fence about whether or not I would get an amp but I think I will just so I can throw in my two cents on this debate. Thank you to everyone I have learned alot just from reading these posts. This is what ocn is all about!
Now continue smile.gif

Well, if you're dead set on this, my recommendation would be to not buy an amp unless there's a good return policy and you can recoup losses. Maybe you'll like it though and keep it. Or just try like a FiiO E5 for $20 since that's cheap, which could very well have lower fidelity than the Titanium HD headphone amp, but at least is known to have low output impedance. Anyway, your money, your choice.

Quote:
Originally Posted by BababooeyHTJ View Post

So, the HD598 gets blisteringly loud on an ipod? wink.gif
What setup have you used the HD598 on exactly?
Going by specs alone the q701 has a sensitivity of 105db according to AKG's website so they shouldn't need an amp either. Specs don't always tell the whole story. Like I said I doubt that a halfway decent amp would have no benefit at all especially at higher volumes. I can comfortably listen to these cans with the volume slider at 100%, I can't do that with any other pair of headphones that I own.

Most iPod have max output of 1V I think. Modern ones have low output impedance so not much of that 1V will be lost across that output impedance--the rest will be sent to the headphones.

Going by 3rd-party measurements (different manufacturers may measure things in slightly different ways), Q701 has sensitivity of 103.7 dB / V averaged over all frequencies, which is pretty low for a dynamic driver headphone. HD 598 has a sensitivity of 111.4 dB / V. That's a pretty big difference.
post #23 of 58
Quote:
Originally Posted by mikeaj View Post

Going by 3rd-party measurements (different manufacturers may measure things in slightly different ways), Q701 has sensitivity of 103.7 dB / V averaged over all frequencies, which is pretty low for a dynamic driver headphone. HD 598 has a sensitivity of 111.4 dB / V. That's a pretty big difference.

Thats a 7% difference I'm not so sure that I would call that huge. Either way I just mentioned that to point out that you can't make judgments by measurements alone. Unless you've personally spent some time with the headphone in question and have spent a good amount of time hearing it both amped and unamped I'm not so sure how you can make a definitive statement on the subject. When I saw some time I mean more than a few hours.
Edited by BababooeyHTJ - 1/22/12 at 11:31am
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post #24 of 58
Quote:
Originally Posted by BababooeyHTJ View Post

Thats a 7% difference I'm not so sure that I would call that huge. Either way I just mentioned that to point out that you can't make judgments by measurements alone. Unless you've personally spent some time with the headphone in question and have spent a good amount of time hearing it both amped and unamped I'm not so sure how you can make a definitive statement on the subject. When I saw some time I mean more than a few hours.

A lot of things you can't tell by measurements alone, but loudness is not one of them. Clearly the measurements will give you a good idea of the sound pressure levels. You can optionally A-weight the results or not, to relate that to perceived loudness by most humans.

By the way...
7.7 dB = 10^(7.7/10) = 5.89. The SPL is 589% of the other, or 489% more, if you prefer. Where did 7% come from?

Of course that measure is not that meaningful, since humans don't perceive volume linearly to the sound pressure level, even equal-loudness contour curves aside. In general about a 10 dB difference is perceived as about twice as loud.

edit: open up a music player like foobar2000 with a volume control slider where it tells you the dB. Slide it down 7.7 dB. Most people would consider that somewhat substantial, at least.
Edited by mikeaj - 1/22/12 at 12:11pm
post #25 of 58
Quote:
Originally Posted by mikeaj View Post

Of course that measure is not that meaningful, since humans don't perceive volume linearly to the sound pressure level, even equal-loudness contour curves aside. In general about a 10 dB difference is perceived as about twice as loud.

Ahh, I forgot about that.
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post #26 of 58
Thread Starter 
I think it will be worth it just to see the difference it makes. If I eat shipping costs to return it, so be it.

I will be getting the e9, since I have prime it should be here Tuesday. Ill update with results
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post #27 of 58
Thread Starter 
So here it is

450

450

450

450

As for whether or not it was worth it:

DEFINITELY

I could tell the difference within seconds. The bass is much tighter and cleaner. There is absolutely no distortion anymore.
The whole sound seems wider and brighter.

The gain switch on the e9 is useful for switching from high gain when i have the headphones on and low gain when its playing through my basic 2.1 speakers. Both sound better than with just the titanium HD

I liked this so much that I ordered an e7! smile.gif
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post #28 of 58
Why when you have a Titanium HD, lol.

Also, in your comments above about distortion and whatnot...is that with the headphones or the amp? What are the direct differences you hear with the amp vs without the amp.
Edited by Simca - 1/24/12 at 2:52pm
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post #29 of 58
Thread Starter 
That's with the headphones plugged into the amp. And the e7 is portable and I use my ipod alot so it will come in handy.
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post #30 of 58
Seing as how it's tax time I was considering picking up a small amp for my HD 595's just to see if I could hear a difference as well. I was looking at a tube amp from lil dot as they have one that is made specifically for lower imp head phones. This little think looks cool as well though. Thanks op!
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