Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Is it a waste to purchase headphones this good if using just an iPod or Mac laptop as your music source, without an external amp?  Thanks
Document: I love these over the ear headphones. So far, they are the best I have owned. Beautiful clarity without any distortion. I'm using them as reference phones for recording. I also use them with my iPod and a FiiO E12 Mont Blanc Portable Headphone Amplifier. This is a remarkable combination.
I have to say I am absolutely floored by the bass, it's as weighty as the low end from my Hifiman HE400. Overall the sound is very sweet and enjoyable and as far from clinical studio sound as possible without sounding sloppy. I enjoyed The Beatles on theese headphones more than anything else, it feels like their music was specifically engineered to be listened to exclusively with theese headphones. That is probably not a coincidence, since many of their albums were recorded in studios using Bowers & Wilkins equipment.
Remember that you can buy the best headphones, but what you put into them is exactly what you'll get out (GIGO). If you don't intend to use these with a high-res player or source, save your money and buy something half this price.As an aside, the price asked on Amazon is $100 more than BestBuy and the Apple store. Indeed, I got an open box model in new condition for $360 and tax. In addition to great music, I love a discount.
Given that source, these headphones sound great through the frequency range, are fun to listen to, and are quite comfortable for extended periods of time. Good build quality and feel premium. All in all worth the asking price (though it seems all headphones are getting more and more overpriced - diminishing returns and all that).
Hooking them up to a headphone amp/DAC further improved the sound from the Focals and Grados.After a few years and a couple DAC's later, I decided to give the P7s a try since they received some good reviews. By far the best sounding headphones that I own. Soundstage seems wider and the sound seems more controlled thoughout the entire sound spectrum. The P7s also are much more comfortable than either the SR80s and the Spirit Ones. They have a nice case for traveling and the ear cups are very comfortable.
So I paused my ipod, took a look and low and behold I was home alone. I eagerly rushed back to my listening session. I qued up the music again. There he was singing again and &#34;tathump.&#34; After a couple more tracks I realized it was two things. He occasionally taps his foot or the rocks the microphone holder. My mind was blown because of the clarity and detail the P7s reveal. It was baffling, breath taking.
cable quality is very good also.Sound Quality:I am not audiophile but i could appreciate the very good sound from this headphone, i think a break in of 12 hours will be good enough to make the sound better. i left it  it connect to Ipod for 10 + hours for break in.It works very well with Iphone 5s, call quality is very good.
Really loving them.Pros:- Stunning balanced sound, making you smile- Exquisite looks, high-class exterior- Supreme built quality, headphones that really last- Easily and beautifully driven by iOS device and computerCon:- Not for the big ears- Require general leather care in order to keep their good looksConclusion:- If you are looking for cans in this price range for everyday use, i.e. music / podcast / relaxing / enjoying life, BUY them!
You can use them straight from your ipod or hook them up to you expensive home receiver system and they will scale beautifully. They get substantially better with cleaner input.- the cable is fairly sturdy, and much thicker than other headphones in this price range, including the H6, Momentums, and even the P5s. Not to mention you get two of them one with mic and with straight.
Enter the P7s.The imaging and soundstage on the P7s on every album listed above is just like you're in the room with the band. The features of each recording were rendered just perfectly without the (to me) fairly clear "sound by committee" on other headphones, for example Beats, VModa, etc.
Answer: Another follow-up to your question.  I'm really impressed by how efficient the P7's drivers are. I have an iPhone 5 and it gets uncomfortably loud if I go above 3/4 of full volume on most of my recordings.  I have a FiiO E12 (Mont Blanc) amp that I use occasionally when I'm sitting at my desk and listening.  I'd say the FiiO does a nice job creating a somewhat smoother overall sound, but from a pure sound output perspective, it's absolutely not necessary. Hope that helps!