I thought i would give a quick review of the headphones i have acquired in my quest for the perfect sounding set for the music i listen to which is mostly 60s, 70s rock ,blues country
GERMAN MAESTRO GMP 400
The German Maestro Gmp400 is an open back headphone with an impedance of 300 ohm ,they have a 3m cable which is connected to both left and right ear cups ,and has a screw in gold plated 6,3mm adapter, they are a circumaural design with soft velvet ear pads and they employ a floating five dimensional cardamatic suspension system which is very comfortable and helps mold the ear cups to your head and adjusts it self as you move your head about.
They are very comfortable and light weight ,feel well built but not as rugged as the cheaper Gmp 8.35 model.
These sound like a mix between the HD650 and Q701 to my ears, they have a very nice tight bass ,mostly sub bass without much mid / upper bass much like the Q701 ,the treble sounds very much like the Hd650 in its tone with a high amount of detail ,the midrange is an amalgamation of the best quality's of the aforementioned phones .Drums have a very ,very realistic timbre on these ,vocals are slightly forward in the mix and are clean and free from bass bleed ,crystal clear with no trace of sibilance . Electric guitar sound really beautiful on these ,polished and refined .
Soundstage is fairly wide but not that big in depth , i find myself on stage with the musicians all around me .
Over all i really enjoy listening to these ,they offer excellent sound quality and tones of details for a fair bit less in cost when compaired to the other phones i own .
I really like the build quality on these ,they fit nice and snugly on my head and i love the wooden ear cups which encase the 50mm drivers which makes them feel like a quality product ,the only let down here is the cord which is very long and thick and covered in a cloth weave which makes them kink and twist up all the time and is generally very unmanageable.
Out of the box these were a little sibilant but soon calmed down over a couple of days and the overall sound is a very nice punchy hard hitting bass ,forward mid range and soft but detailed treble that takes a back seat to the mids and bass.
Bass is about 70 percent mid bass ,30 percent sub bass and has a Nice impact while not intruding into the mid range ,it is tune full and there is good separation of bass instruments
Mids are slightly forward and vocals are clean and precise , electric guitars are polished and very nice sounding with a nice bite to them but more polished and tasteful rather than raunchy .strings and acoustic guitars have a nice weight and tone to them and drums have a nice timbre albeit on the heavy side ,piano has a nice weight and tone to it.
Treble takes a back seat to the other frequencies but it highly detailed and well extended with a nice sparkle and body
Sound stage is quite wide and more so deep with a portable amp and when amped by my Graham Slee Solo SRG ll ,pre-amped by my Yamaha A2 DSP the sound stage is very wide giving me the illusion that the sound is coming from my floor standing speakers which are in the corners of the opposite wall from where i am sitting.
The build quality on these seems good for an all plastic design ,the driver housings are huge on these 53mm driver headphones, the head band is comfortable although these seem to be made for people with large heads ,but they fit me on the minimum settings.The cord is nice ,you get two ,one shorter one and one very long one ,10 meters i think terminating in 3.5mm jacks .
Out of the box these were quite sibilant but calmed down nicely over a period of a few days leaving a bright very extended and detailed analytical treble which makes for very precise imaging .
Bass is about 80 percent sub bass ,20 percent mid bass which gives them a nice rumble but not much impact so not the best phones for rock music like led zeppelin or the all man brothers. Bass has good separation of instruments and does not colour the mid range.
Mid range is neither forward or recessed and vocals are quite analytical and with the most micro details ,electric guitars are more prominent than on the denon but still just as polished and liquid like, acoustic guitars and strings are very detailed with a nice pitch to them but lack the weight of the denon strings, piano has a nice tone to it ,drums have good timbre and are quite snappy
Build quality on these is again very good for a plastic based phone ,these seem built like a tank and have a nice substantial cord terminating in a 3.5 jack and you also get two cords with these one strait and one coiled .These use a 40mm titanium coated driver
Out of the box these were very treble dominant and harsh sounding with an almost unbearable amount of sibilance in almost every song,reminded me somewhat of that film ,full metal jacket when the Sargent was standing toe to toe with the recutes shouting obscenities into there faces lol.It had read all sorts of crazy figures of 200-300hrs of burn in needed to tame the treble on these, i am happy to say that by around the 20hr mark the treble had fallen into line and was no longer harsh with 90 percent of the sibilance gone , i eq'ed down the 4khz frequencies to remove the remaining sibilance to my ears that makes these sound perfect to my ears , still a very bright but not harsh treble ,well extended and nicely detailed
Bass is around a 20/80 mix of sub bass and mid bass which gives them a slight rumble and a decent impact although i have to eq up the bass a fair bit to get them to hit as hard or sound as bassy as the denon.There is no bass bleed into the mids and the separation of instruments is very good.These are quite fast although that means there is very little decay so the bass notes come and then are gone in an instant which can sound a little strange.
Midrange is very nice ,vocals are just right ,not really analytical ,nor recessed , piano has a nice tone and weight to its sound as do strings ,drums have a very nice timbre ,horns and synthesizers and other treble stuff sounds very nice and some what forward ,the real meat of the sound on these to me is the electric guitar ,it really sings, its raunchy while being polished ,plenty of bite and zeal to it ,really makes the hairs on the back of my neck stand up
Build quality is good and these feel very light ,and i like the way these feel really secure on my head and i also love the cord on these ,its a bit long but feels really sturdy , i only wish it terminated in a 3.5mm jack instead of the larger jack ,but you do get a rather bulky adapter cord extension piece.
Out of the box these were the safest ,no sibilance , little harsh in the treble but hat disappeared after a couple of hrs use, and these have that thinner sounding treble that sennheiser is know for, very extended and detailed
Bass ,was a bit muddy out of the box but is much cleaner and more tune full now, these have the most bass presence out of the 4 to my ears , bass is around 30 percent sub bass and 40 percent sub bass and 60 percent mid bass ,bass does not extend into the mids and the vocals are not coloured by the mid bass like on the ie8. instruments can be clearly defined in the bass region.
Midrange has that typical sennheiser silky smooth thick sound that a lot of people conceive as a veil ,vocals are the centerpiece of the mids , lush and very full sounding ,drums have a nice timbre , piano and horns and electric guitar all sound nice although that silky smooth tone takes the edge of them a bit ,but its still a nice sounding phone ,Acoustic guitars and strings have plenty of weight here ,maybe a bit heavy sounding but i only have 10hrs on these so am still expecting the sound to improve some yet.
No 1= PRO 900= perfect for rock and country ,and anything electric guitar dominated when you rock out to your favorite bands
No 2=DENON AH5000= perfect for heavy rock like early led zeppelin & a great all rounder
N0 3=AKG Q701=perfect for analytical listening
No 4=SENNHEISER HD650= great for vocal dominate music and a good all rounder for a relaxing listen
Edited by lucozade - 1/2/12 at 7:02am