Originally Posted by Chris J
I own a pair of Q701s, I can drive them with an iPod, an iPad, a FiiO E17, a note book computer, none of these are known for outputting massive amounts of power.
They aren't that power hungry, 20, 30, 40, 50 milliWatts @ 62 Ohms is enough to drive them to any sane volume.
The OP probably thinks we are crazy, he seems to be fine with his O2. See his last couple of posts.
I THOUGHT this was true. I bought the Q701's for both gaming and music. While my X-Fi-Gamer,Astro Mix Amp (without chat mixed in/and my Sony MP3 player could drive the Q701's to a decent volume level I failed to appreciate how much they DO need and amp to sound their best.
I got by without an amp for about a year. I was afraid that an amp would do nothing more than make them louder so I put off investing in one. Once I had the disposable scratch I went for it. I built myself a custom Objective 2 because I wanted to be sure that the amp was not coloring the sound.
RESULT: After much careful AB testing I have found that:
1. It is best to set the sound card output to less than 50% to prevent clipping and distortion coming from the sound card output.
2. Either Gain setting of the O2 is enough but I find that the x 6.0 gain to be the best setting for less than 50% from the sound card and less than 50% from the O2.
3. The end result is most noticeable in the power hungry low frequencies. Without an amp the low bass is flabby, weak and uncontrolled. With an amp it has punch and depth and does not distort the low or mids as much.
It is not night and day mind you. It's not like No amp = crap, Amp = utter bliss.
But IMO one should not buy the Q701's without getting an amp.
Before I got the O2 I found the Q701's inadequate for Rap/Hip Hop, or say DnB. After getting the Amp I find them to perform beautifully with everything I throw at them.
Please take my opinion as one who does not like to spend money where it is not needed. I do not own 50 pairs of headphone and 20 amps. I wanted to spend the cash on just one good setup and to only do it once. I wanted one setup for Movies Music and Gaming.
After completing a long careful process I feel that I have arrived.
I have: Astro Mixamp, X-fi Extreme Gamer (only thing I might upgrade), Q701's, O2 amp.
I am Very Very happy.
Edited by Heretic817 - 2/8/13 at 10:08am