What is the impedance for these headphones? This is important as headphone amps tend to be designed for low OR high impedance and not both.
775771
Type open-back, dynamic Audio Frequency Bandwidth 8-39800 Hz Sensitivity 105 dB SPL/V Max. Input Power 200 mW Rated Impedance 62 ohms Cable 3 m single-sided (99,99% oxygen-free) Connector gold plated stereo jack plug 6.3mm (1/4") Stereo Adapter gold plated convertible jack plug (1/4" to 1/8") Net Weight 235 g (8.3 oz.) Included accessories: gold plated convertible jack plug (1/4" to 1/8"), anniversary brochure I recommend you headamp to get the best of these cups. I use a fiio ALPEN E17 as portable amp/dac, and a desktop amp E09K using the dac of the E17 too. I have only good words for this combination.
775772
The rated impedance for these headphones is 62 ohms (see: http://www.akg.com/media/media/download/9361).
775773
Type open-back, dynamicAudio Frequency Bandwidth 8-39800 HzSensitivity 105 dB SPL/VMax. Input Power 200 mWRated Impedance 62 ohmsCable 3 m single-sided (99,99% oxygen-free)Connector gold plated stereo jack plug 6.3mm (1/4")Stereo Adapter gold plated convertible jack plug (1/4" to 1/8")Net Weight 235 g (8.3 oz.)Included accessories: gold plated convertible jack plug (1/4" to 1/8"),anniversary brochureI recommend you headamp to get the best of these cups. I use a fiio ALPEN E17 as portable amp/dac, and a desktop amp E09K using the dac of the E17 too.I have only good words for this combination. Type open-back, dynamicAudio Frequency Bandwidth 8-39800 HzSensitivity 105 dB SPL/VMax. Input Power 200 mWRated Impedance 62 ohmsCable 3 m single-sided (99,99% oxygen-free)Connector gold plated stereo jack plug 6.3mm (1/4")Stereo Adapter gold plated convertible jack plug (1/4" to 1/8")Net Weight 235 g (8.3 oz.)Included accessories: gold plated convertible jack plug (1/4" to 1/8"),anniversary brochureI recommend you headamp to get the best of these cups. I use a fiio ALPEN E17 as portable... » Read More Type open-back, dynamicAudio Frequency Bandwidth 8-39800 HzSensitivity 105 dB SPL/VMax. Input Power 200 mWRated Impedance 62 ohmsCable 3 m single-sided (99,99% oxygen-free)Connector gold plated stereo jack plug 6.3mm (1/4")Stereo Adapter gold plated convertible jack plug (1/4" to 1/8")Net Weight 235 g (8.3 oz.)Included accessories: gold plated convertible jack plug (1/4" to 1/8"),anniversary brochureI recommend you headamp to get the best of these cups. I use a fiio ALPEN E17 as portable amp/dac, and a desktop amp E09K using the dac of the E17 too.I have only good words for this combination. « Show Less
1042342
They have in my opinion a good amount of bass w/ out amplifier. Now with an amplifier these headphones get rediculously loud and the bass does get deeper. Any amp would work even pocket one. These headphones do leak a lot! Seriously they leak a lot! But they do sound great. So honestly you won't be getting the price tag sound with out an amplifier.
1295930
It's an active amp which is why it plugs into a wall outlet. It amplifies the signal from the input and splits it into each output, and it has plenty of cojones to drive my over-ear phones into heavy distortion. I assume that's what you mean by "drive." Not sure what you mean by "how many Ohms can it handle". Headphones are generally low watt, high impedance--like 40+ ohm. I personally wouldn't try to drive a low impedance load like a speaker with it.
1527377
It depends on the type of earphone you have. If you have low impedance (resistance) phones which most of the affordable ones are you will be o. k. some higher resistance = higher priced may work but maybe not as loud as you want. Also computers and laptops differ in output strength. But go for it as it is affordable and the sound is immaculate.
61574
This question highly depends on your headphone amplifier. The bass response is awesome with a proper headphone amp. For electronic music get a solid state amp.
579661
I am using Philips X1, which is 30 Ohms. It has more than enough power for my taste. I'm not sure if a 250 Ohm headphone would work, without an amp.
1804196
This amp is intended for powering headphones only. Power output, as such, is probably too low for anything other than headphones. Note that typical headphones have maximum power handling capability of only about 0.1 watt. Also, amp output is analog only (USB is digital).
1640138
Check everything:1. Computer volume still correct?2. Amp volume ok?3. EQ not messed with?4. Headphone cable ok?5. Cable to computer ok?6. Tube seated?Check the obvious first... Otherwise, I have no idea, mine sounds great!
746092
From their website: What headphones does Valhalla work best with?Beyer 600 ohm models and Sennheiser 300 ohm headphones are best-think high-impedance when you're thinking about Valhalla. Yes, we have plenty of people using Valhalla with low-impedance headphones, but the best match is with high-impedance cans.So yes.
1322858
For starters, I am an electrical engineer so I won't be giving you any hocus pocus, here, but I'll try not to be too technical. The main "real" reason you might use a separate amplifier for your headphones would be to isolate the source from the varying impedance of the headphone sound transducers. Output amplifiers for headphones (or any speaker) can be weak and a stronger amplifier will be more resistant to that varying impedance. Also, a stronger amplifier can usually produce a larger signal without clipping, which is when the output voltage (or current) reaches the maximum voltage (or current) the amplifier can supply. That is really the only technical reason to use an external amplifier. A second reason to use an external amplifier is because the amplifier might change the sound in a way you find pleasing even though it may be less accurate. Tube amplifiers tend to have higher harmonic distortion than transistor amplifiers but also tend to produce more even order harmonics which sound less harsh (or so I've read). When tubes are driven to their maximum, they tend to produce less objectionable distortion than transistors for a similar reason. But really, the main reason to buy one of these and put it on your desk at work or wherever is because it looks cool and people will ask you about it and then you can tell them all kinds of things either true or made up about why you use it.
1289213
I was puzzled by the "yes" answer. My model does not have and sort/size of headphone jack. I have usually seen headphone jacks on receivers, pre-amps, and amplifiers, but not on source equipment...
920668
could be whoever advertised the headphone wasn't paying attention its more likely to be the 32 ohm like in the description. i use the dt990 250 ohm powered off the schiit magni 2 (Recomended) otherwise the 32 ohm version is a nice option for more compatibility with e.g. a smartphone, although these headphones are a bit too nice to take on the go.
1368939
From what I read the amp is pretty good as well and could handle phones up to the HD650, which are 300 ohms I believe,. The DT 880s come in 32, 250 and 600 ohms models. So depending upon your model, the 600 Ohms would work, but would push the perfomance a bit. Some people with 600ohms headphones would still buy the Fostex for portability, and then might have a desktop amp at home. The opinion i gave is a uer's experience in the Head-Fi forum.
1223793
Your phono amp brings your output up to line-level standard and is not meant to power headphones. The headphone amp you choose depends on which headphones you plan on driving. The little dot is versatile and can drive cans from 16ohms to 600ohms depending on how you set it up. Further, it provides the opportunity to enjoy the warmer tube sound and also play with tube rolling (experimenting with different tubes for different sound) I switched the opamps out for Burr Browns and am using vintage western electric 408a tubes as this setup works for my Sennheisers. Hope this helped.
624288
This product is a line level preamp; it CANNOT drive low impedance (wired) headphones. Wireless headphones (e.g. the transmitter) can be connected, but doing this will probably NOT make them louder (since their maximum clean output is determined by the battery-powered amplifier contained in the headphone themselves...).
1896371
I keep the level of this pretty high when I feed it into a power amp (15 watts) for lower volume practices. While i have never plugged it into a headphone amp I have plugged it into my mac for direct recording some with good success. I hope this helps a bit.
1367500
You will have to get a digital to analog converter to plug into the analog ports on the back of the amp, but other than that these will give your headphones some serious bass. I'm not an audiophile, but I don't notice any distortion in the headphones until they're being over-driven. I have some Bose OE headphones and they work much better with the amp, rather than the audio card that came on my gaming computer.