There are great headphone amps for less than [price], if you know where to look.

- you need a decent amp!Be warned - the only Sennheiser models I've been able to do critical mix/imaging work

I bought a very cheap amp ($90, have no money), but the 3D sounds are AMAZING with this thing

Sound quality (3/3 stars):I'm running these off of a cheap $150 desktop headphone amp

The amp in the 2i2 seems to work great with these and and holy wow the improvement compared to my previous m50x's

Cons:You need a good amp and DAC to get the most out of these

With a good amp, you will laugh at the thought of the HD600s having a "veil" and lackluster treble performance

In my search for a good amp

The best sounding amp I've heard with these is the Emotiva

There's also a lot of really expensive solid state amps

They do bring out the weak points in your system though so make sure you have a good dac/amp

I need a better amp though.

I mostly listen to my music collection (re-ripped in either ALC lossless or AAC 256kbps) in my iPod Classic 80G via line-out to my Minibox-E headphone amp (which is a fantastic little amp I got from Head Direct for US$159)

Be sure to get a nice DAC/AMP to power these and some high quality audio files and you won't be disappointed

I have yet to hear a speaker system come close to the HD600s mated with a good DVD player and a good headphone amp.

These are also high impedance, so they'll be driven best by either an external amp or a device with a pretty strong amp built-in

The only "downsides" are that they are open back so everyone around you can hear what you are listening to (albeit at a lower volume) and they don't work well with portable devices (you need a good amp to drive these).

INCLUDING a really good headphone amp

I've owned these cans before but never with a decent amp.

I finally found an excellent amp in the Samson S-Monitor

, I've experienced it with speakers, subwoofers, and headphones all all the same (except earbuds).If you're used to a lot of bass, it can *seem* disappointing, but if you give these headphones enough juice through a nice amp and DAC, the sound fills out nicely.

They are actually surprisingly easy to drive, but a good amp and DAC really makeComfort:No need to spend too much time here

I am running these with a classic Pioneer Elite integrated amp that has a very nice headphone section

you have an adequate amp and dac

The problem wasn't the HD600s, it was my pathetic amp

Combined with the Onkyo C7030 CD player, no amp needed and pure audio heaven

I messed around running the phones directly off the computer's headphone jack, and I have to say that I highly recommend a good DAC/Amp to get the most out of these cans, as the added power really brings them to life.

I refused to pay $500+ for a headphone amp and it took me a lot of time to find a good, low-cost amp

For those of you using the HD600s with a cheap Fiio or similar amp, please do yourself a favor and look into a good OTL tube amp and these headphones will amaze you

If using with IPad, I definitely recommend a dedicated headphone amp

You'll read a lot about paring these with a relatively inexpensive portable amp, and you may be pleased, but these really shine when paired with an OTL tube amp

Of course, you will need a decent amp/dac--don't expect anything special unless you have both.

For those of you using the HD600s with a cheap Fiio or similar amp, please do yourself a favor and look into a good OTL tube amp and these headphones will amaze you

Just as you wouldn't expect to run $5000 speakers off a $100 boom-box, the HD600s are more at home with a good amp and a quality CD/DVD/LP player

the soundstage, even driven from JDS Labs portable O2 amp, is remarkable, and three dimensional.

I feel I need to mention that these headphones need to be paired with a proper amp and will sound significantly better after they have been listened to a bit

best of luck!EDIT: i also just want to add that getting a proper headphone amp for these is truly vital

Mids and highs are still good, but the sound isn't as full or realistic without a proper amp

The only "downsides" are that they are open back so everyone around you can hear what you are listening to (albeit at a lower volume) and they don't work well with portable devices (you need a good amp to drive these).

As many have written about the HD600, you may need a good headphone amp to enjoy these.

Yes, an amp is often recommended for these, but I use it unamped quite often (although I have an amp), and it still sounds great.

Also, it's probably obvious if you're looking to spend this much on headphones, but a good headphone amp REALLY brings these alive

Not like it was bad, but if you go for a HD600 without an adequate amp, You could find better at a lower price

There's also a lot of really expensive solid state amps

I plan to upgrade my DAC with a better headphone amp and when I do I shall report back

These headphones when paired with a good amp are transcendent

Cons: wire seems a little thin, color looks dated, Aimed for people with high fidelity files and proper amp configurations (low quality files or amps will not let the headphone sing).

With an Modi 2 DAC, and Magni 2 amp, the bass punches, but is not overwhelming.

Cons:You need a good amp and DAC to get the most out of these

After some research over the years, I discovered that the HD600s will not reach their full potential until they are powered by a good amp

I'd recommend an amp to get the most out of them though.

I prefer tube amps.

When paired with a good headphone amp, they will get you most of the way along the path to sonic perfection

I'm using a cheap amp and DAC right now, but I'm still blown away

Get them now and get a solid headphone amp too.

These sound incredible with vinyl, hi-fi players, even IPODs with a good amp

Then I read that the 600's respond to a good amp, thus enter a Bottlehead Crack which is an incredible match for the 600's

I found them to be really great sounding, even in the company of my Audeze cans, so I might just have to have a set, if only to be able to enjoy, say, OTL headphone amps

With a good amp and preamp etc, they will give you the sound quality of a pair of high end speakers 100 times their price!Highest Recommendation

These open headphones will require a strong amp or the use of a home theater to truly be worth the purchase price.

A good OTL tube amp makes these headphones sparkle

These are rather hungry headphones and respond well to a nice amp, but still sound great on my iPhone around 40% volume

I don't understand why that is, but once I got a proper dac/amp I was blown away by what I had been missing

This chase will usually result in you getting more expensive amps and DACs, which will lead to getting better headphones because now you don't feel like your headphones do not benefit 100% from your expensive amp/DAC

An amp is definitely recommended, but even my Sansa Clip + , with 0.5V

To me, a perfect amp has zero distortion

If you spend around the same amount on your amp, you can get a decent OTL tube amp, and you will take your HD600s to an entirely new level of performance

They are high impedance though, so make sure you have an amp so they can really shine!

I use a mediocre DAC/ Headphone amp ( Creative ) and I'm pretty sure that I haven't yet unlocked the true potential of these headphones

To me, a perfect amp has zero distortion

+ (decent amp

It was a cheap little NuForce USB amp

The 600s work just fine on my iDevices but better with the Fiio A5 portable amp

Had these for a while now, and was uninmpressed mostly because i didnt had a decent amp to use with them

I already had a decent Peachtree Audio Integrated Amp/DAC with headphone amp to test them

Once you start to use the Sennheiser HD 600 headphones, you will most likely feel that this was one of the best music listening headphones at the price point of approximately $350.00.To obtain the maximum sound quality of the Sennheiser HD 600 headphones, you will need a good quality stereo pre-amp and or stereo amplifier

Next, if you're going the portable route, get a good portable amp - I use the Ray Samuels Hornet currently, and it's a killer piece of amplification

There is a very noticeable difference between these headphones and other ones I triedI can imagine what you can get out of these with better amps.

They will show you, with a good amp, exactly what is on the recording, (warts and all if its a bad recording)

To date I haven't found a good amp combo

Make sure to pair these with a solid Amp/DAC combo .

To get the full potential out of these headphones you're gonna need a good dac/amp

- The bass is very recessed on anything you listen to without a proper amp

(Fiio 17 - 150-200$ Good Portable amp)Returned Fiio 17

I have around 7 pair of professional/audiophile headphones and these are as good as it get's in my opinion

i really wanted a very nice pair of headphones for checking my mixes on as well as for listening to music on without throwing off my ears

In short: These are as good as it gets -IF- if your reason for wanting headphones doesn't include recording

I use these in my home studio for late-night composing and mixing, as well as for pure enjoyment.

These headphones handle it all as well as you can imagine, and will expose items in your favorite songs you had never heard before.

Not to mention their open-back design and 300 ohms of impedance mean you shouldn't be using them while traveling, though this doesn't bother me as I use the at home

Although there has not been sufficient time for burn-in the phones are superbly accurate (especially in the midrange: vocals, woodwinds, etc.) as well as in the wonderfully detailed highs (in an odd turn of events I happened to find that the HD 600 was not much less in the highs than my Koss electrostatics)

If you're going with a stationary home DAC, then make sure that it has balanced outputs, and get a true balanced amplifier (Headamp GS-X is a good model, as is the Heardoom Max Balanced, or perhaps a cheaper but still excellent SFT-build balanced M^3)