看看外国人对各大品牌耳机的评价

hugoli1984

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hugoli1984

Beyerdynamic
Germany

Beyerdynamic DT 770 (classic model)
Notes : S(+), C(++)
Closed, circumaural, impedance 250 ohms, efficiency 96 dB, bass reflex - yes.

Very good closed-back headphones. However the sound is a bit colored, therefore those
headphones should not be used for the most critical monitoring purposes. Very problematic
part of the band is localised between 200 Hz and 1kHz, where a drop of frequency response
occurs.


In few words: Very good headphones for professional use and several
models for audiophile use. Very rugged - the manufacturing quality is
excellent. The average sound quality is very high, but the tonal balance
is not satisfactory.

Models DT- 770 - 880 - 990 have an exceptional, tough and rugged construction. The
wearing comfort is very good and the large soft pads are comfortable.
One can also order different colours, makes and even personal inscriptions made in the
factory especially for an ordered pair of headphones.
The construction is very quiet when handling.
Standard impedance is 250 ohms, but one can choose 32 or 600 ohms as well.

Beyerdynamic DT 770 - 2005
Notes : S(+), C(++)
Closed, circumaural, impedance 250 ohms, efficiency 96 dB, bass reflex - yes.

As above. Here the sound is too bright, but the midrange and lows are in right proportions.
Detailed analysis will be published in "Projects" part of this site.




Beyerdynamic DT 880 - 2005
Notes : S(+), C(++)
Semi-open, circumaural, impedance 250 ohms, efficiency 96 dB, bass reflex - yes.

Excellent, nearly perfect headphones with a flat frequency response in the
midrange*. The manufacturer claims that they provide a "very linear sound'. The
resolution, soundstage, spacial imaging and transient response are excellent,
better than in 770s and 990s. However the low end is too weak. Matching of
channels is perfect, probably one of the best we can find on the market.
The fantastic soundstage is one of the greatest advantages of this model. After
modifications the overall quality is more than excellent.

* Those headphones have an incredibly flat characteristics up to 4kHz, after that
there is a strong emphasis on the treble. Fault of that, they could be a perfect
product. For modifying Beyerdynamic headphones look at the "Projects" page.



Beyerdynamic DT 990 (classic model)
Notes : S(++), C(++)
Open, circumaural, impedance 250 ohms, efficiency 96 dB, bass reflex - yes.

A very good model of open-back headphones. The frequency response curve is
good, however an excess of lower frequencies exists. However, the sound is more
natural than that offered by the new version "2005". They have other characteristics
similar to those of the model below.


Beyerdynamic DT 990 - 2005
Notes : S(+), C(++)
Open, circumaural, impedance 250 ohms, efficiency 96 dB, bass reflex - yes.

A decent model of open-back headphones (however, it is the most expensive model
from Beyerdynamic). The sound is detailed with a very large soundstage, and the
dynamic is high. Overall sound quality is decent. Unfortunately a noticeable
enhencement of high and lowest frequencies occurs*. The manufacturers calls that
"strong bass and treble". In practice the highs are exaggerated and the bass is
redundant and bloated. Generally the frequency response is uneven and gives an
unnatural reproduction of the material. On the other hand, the channel matching is
excellent.

* For a balanced sound they need a similar modification that the other models from
this line.

hugoli1984

SBC-HP1000
Notes : S(++), C(++)
Open, circumaural, impedance 32 ohms, efficiency 106 dB, bass reflex - yes.

Rugged headphones with an excellent sound quality and wearing comfort. The frequency
extend, dynamics, spacial imaging, channel matching, bass and treble character, are on a
very high level. Listening tests confirm the results obtained during measurement in our lab.
However some criticism should apply to the fact, that the midrange is a bit veiled. This makes
the sound a bit "cold", but this type of presentation can satisfy many (similar to HD-600,
HD-650).
The earpads (very cozy) are specially shaped to gently surround ears.
The construction includes metal elements and seems very robust.
Big surprise from Philips.

NOTICE: Pressure on ears should be set light (by stretching open the metal headband),
otherwise the sound will be too boomy and tonal balance will be even more moved towards
the low end.

SBC-HP890
Notes : S(+) C(+)
Open, circumaural, impedance 32 ohms, efficiency 106 dB, bass reflex - yes (limited)

The overall performance is very good. The treble is very precise and has a positive impact on
imaging and resolution. However the bass is strongly enhanced, which gives the music a
heavy (but also deep and powerful) sound. This can be - to a certain extend - fixed by
decreasing the earpads' pressure on ears, but still those headphones would sound a bit too
gloomy. This is a pity, that Philips engineers decided to strengthen the bass response, as the
transducer is one of high quality and could have worked in a linear mode.

Beside that, the main parameters of these headphones are very good : fast transient
response, low distortions, frequency curve virtually free of peaks and dips. Critical listening
confirms the high acoustic qualities of this model.

SBC-HP840
Notes : S(-) C(0)
Open, semi-circumaaural, impedance 32 ohms, efficiency 105 dB, bass reflex - yes (limited)

The construction and make quality is very similar to the HP890's, except for the pads, which
are made from a lower quality fabric. Unfortunately acoustic parameters are much worse.
While the bass and treble quality are very good, a criticism must be attributed to the
midrange character, which is too exposed, offensive and sleazy at the same time.
This weakness is both clearly audible and visible on the frequency spectrum record (large
raised area at ca. 1,5 kHz). The impulse response is average.
This headphone is not capable of prividing a hi-fidelity sound reproduction.



Tests of new models SBC-HP895 and HP-910 soon.
(If someone can send us a pair of them for test, before we
manage to get them officialy, we would be grateful.

hugoli1984

In few words: The majority of their products are very good, but they have
some of lesser quality too. Sound aspects strongly differ from model to model.
Constructions use a lot of plastic. The top-of-the-line models are excellent.

Sennheiser HD650
Notes : S(++), C(+)
Open, circumaural, impedance 300 ohms, efficiency 103 dB, bass reflex - yes.

Model HD650 has parameters close to those of model HD600.
Frequency range extend and the channel matching is perfect.
A common criticism with this model is the bass enhencement assciated with the
midrange is a bit veiled. But still they are is one of the best headphones that can be
found on the market nowadays, thanks to other virtues like transient response,
analytical presentation and superb imaging.

ASSESSMENT HAS NOT BEEN ENTIRELY COMPLETED YET


Sennheiser HD570 (left), HD590 (right)
Notes : S(0), C(++)
HD590: Open, circumaural, impedance 120 ohms, efficiency 97 dB, bass reflex - yes.
HD570: Open, circumaural, impedance 64 ohms, efficiency 90 dB, bass reflex - yes.

Very comfortable, light, well aereted models that one can wear for hours. Unfortunately
the sound balance is not entirely satisfactory :
HD590 - rather heavy sound with a redundant bass.
HD570 - sound lacks midrange tones - both ends too exaggerated.

At the same time, both models provide an excellent imaging and resolution. Also the
channel matching is fine, like in higher models. Those headphones are advised for
certain types of music, where the enhencement of low and high ends might be suitable.


Sennheiser HD600
Notes : S(++), C(+)
Open, circumaural, impedance 300 ohms, efficiency 97 dB, bass reflex - yes.

Considered to be one of the very best availible headphones on the market. Frequency extend
is very good and goes from the very deep bass to the highest treble. The sound is natural,
precise, and spacious.
The frequency response curve is even and the channel matching is perfect.
The dynamic response, frequency characteristics, and subjective parameters like clarity,
detail and naturalness of the sound, are of very high quality.
However the midrange is slightly veiled, distant, and - in addition - the bass seems to be
slightly exaggerated. Overall they sound a bit "dry". They leave their sonic signature on the
material.
Thanks to a generous earpiece construction, that allows a rather large space between the
transducer and the ear, the musical scene and imaging are outstanding, one of the best that
can be found in electrodynamic headphones nowadays.
A lot of audiophiles rank them higher than HD-650.

Those headphonesa are quite comfortable, however, the could be a liite tight if worn for a
long time.


Sennheiser HD555 (left) , HD595 (right)
Notes : S(+), C(++)
Open, circumaural, impedance 120 ohms, efficiency 104 dB, bass reflex - yes

These are two headphones from the same family (together with HD515, not discussed
here) which have a modern design and implementation of advanced new technologies.

The sound quality was high during our listening tests, and this was confirmed by our
measurements.
Frequency extend is very good, the channel matching is also satisfactory. Unfortunately
their tonal balance is not entirely correct in both models. Especially the [higher] model
HD959 has a recessed upper midrange (2-6 kHz) and produces a lifeless distant sound.

They are equipped with "E.A.R. System" and "surroud reflector". It is difficult to state
yet how thisr influences the sound. It seems that the sloped position of drivers and
acoustic reflectors actually widen the soundstage, but other models without this
technology often can do the same.

Wearing comfort of both models is decent.
They are still attractive headphones in this price range (150-200 USD), especially if their
tonal characteristics fit the listener's needs.

Sennheiser HD477 (left), HD497 (right)
Notes: S(+) C(+)
HD497: Open, semi-circumaural, impedance 32 ohms, efficiency 97 dB, bass reflex - yes.
HD477: Open, semi-circumaural, impedance 32 ohms, efficiency 94 dB, bass reflex - yes.

Two affordable models - both quite good performers in its class. They have a rich
midrange and a clear treble, and well matched and have a good frequency extend.
Unfortunately the bass is clearly enhanced too much and redundant, especially in the
HD497 model.

The HD477 is a cheaper, lower version of HD 479, but - surprisingly - giving a more
balanced sound, with slightly lower spacial capabilities.


Sennheiser HD435 (left), HD465 (middle), HD485 (right)
Notes: S(+) C(++)
Open, semi-circumaural, impedance 32 ohms, efficiency 110 dB

These are decent models of headphones, that give a surprisingly well balanced
sound, for their class, with a lot of details and good space imaging. High
effectiveness and low impedance makes them perfect for serious outdoor use.
Thei earpads are made from fabric, that is not so comfortable to wear as
velours of other models.
Detailed comparison later on.

yoer

没有翻译过来啊
看e文太类

xi066

搭着金山词霸能大致读懂森海的几段，刚好有想要的HD555的评价，谢谢楼主提供。

bpxzw

天哪！看不懂啊！哪位高人给翻译翻译！