Originally Posted by bcschmerker4
I am currently in the process of refining the search parameters for a headset needed for monitoring outbound audio on an over-the-Internet transmission on an Asus® CM1630-06 equipped with a XONAR® Essence™ STX™ audio card (C-Media® AV-100 DSP, a modification of the stock CMI-8788 to ASUSTeK specifications). The STX'™ onboard Texas Instruments® TP6120A2 headphone amplifier (Zs = 10.7Ω) being output-transformerless, and the 8:1 damping rule specifying a minimum load of 85.6Ω for a 10.7Ω amplifier output, I am concentrating on the medium-impedance (viz., 100-600Ω) range for candidates. It is possible that the Essence™ STX™ can drive a high-impedance (viz., Zo ≧ 2kΩ) headphone at maximum output, but this is a fallback, in case the medium-impedance range produces nothing satisfactory.
The ideal headset for my monitoring task should have a frequency response, ±1.5 dB, of 16 Hz - 16 kHz, with a treble roll-off not lower than 25 kHz. Neutrality of response is desirable.
You're just looking at numbers here, none of which really matter. Sounds like too much sound science and not enough actual ear-time with the equipment. Maybe I'm wrong. Not trying to be rude. But you're either about to waste a bunch of money, or maybe you're a robot.
Here's what I'm thinking. You're going to monitor some internet streamed audio on some basic consumer level equipment. Do you really need $400+ headphones for this? You're going to listen to some compressed streaming internet audio. And you're using a consumer soundcard to do it. Do you really, really need audiophile grade headphones that cost hundreds? I'm thinking you don't. But you're also not being clear on your real intentions, and that's fine, it's your business. I'm simply looking for information to better help guide you since you're asking for help here.
Regardless, here's some basic recommendations that fit your criteria.
Beyer DT880 (250 to 600ohm, either one is fine) - Neutral/balanced, semi-open, but basicaly an open air, has a great sound stage
Beyer DT990 (250 to 600ohm, either one is fine) - Bassy/Bright, open air
Beyer DT770 (80 to 250ohm, either one is fine) - Warm/Bright, closed for isolation