the bass is perfect with the ability to add a bit through the e7 amp, sound is amazing sounds perfect

went with the dt 770 pros 250 ohms and fiio e7 deffinately what i was looking for, thanks for all your advice :)

what would be the best amp to pair with these? http://www.amazon.com/beyerdynamic-DT770-PRO-250-ohm/dp/B0006NL5SM/ref=sr_1_1?s=electronics&ie=UTF8&qid=1310857002&sr=1-1 as i said its the 250 ohm version since the 80 ohm version isnt directly through amazon itself, i want to keep the cost under 300$

i am returning the 990 600 ohms right now and im prolly getting the 770 pros 250 ohms since their 80 ohm version is not sold through amazon itself, amazon reccomends the fiio e5 amp and the fiio l3 line out dock for ipod for the 770, do you think the e5 is good or should i go with the e7? and...

Quote: how do they sound without an amp? i really do like the 770 pros i am either with the 770 pros or the audio technica m50s, or am considering other headphones too, but i might just go for the 770 pros and get an amp since it would be cheaper then the 990s themselves    

i did some research and found out that 10 db is perceived as 2x louder so if your listening to 70 db, 80 db seems to be 2x louder

im just trying to decide if it would be better for me to take the m50s without an amp or the 770s with the e7 i am not sure what would best suit my needs, but i do like the beyers quality, also if i do get the 770 pros it would prolly be the 250 ohm version would the e7 be efficient for that...

 whats the difference between the e7 and e9 amps? and which 770s the 770s pros with 80 ohms are only 150 saves me 150$ or the 770 pro 250 ohm for 100$ only of saving, for some reason the regular 770 32 ohm version is 250 What and saves me only 50$?

so i can only see the m50s or the 770s as my solution unless there are any other headphones you guys can recommend

how are the shure 840? do you need an amp for those? are they an upgrade from the m50s?

would you say the 770s are better then the m50s?

i am going to return these 990 600 ohms but im not sure if the 770 pro 80 ohm version will solve my problem, im still considering the audio technicas m50s too, if i do go for the 770 pros i will save 100$ from the 990s and then will purchase an amp with that

im curious, since you have an amp how much would you say the db is from the 990 600 ohms vs without the amp? i feel like its about 70ish without the amp

it is said that listening to over 88 db for a few hours damages your hearing over time, i think 110 is the threshold of pain and anything over 95 db for more then 1 hour will cause damage

well a jet flying over your head is 100 db and 97 db is a newspaper press which is pretty loud, they compare 90 db to a motorcycle at 25 feet which seems odd to compare to http://www.rcaanews.org/noiselev.htm