A post-Christmas impulsive shopping,
between two portable foldable on-ear headphones, I chose...
A little bit of www search after my purchase...
|
JVC
(JVC Kenwood) |
SONY |
REF: Average
Ear-bud types
&
head phones. |
REF:
Better ones |
| Model |
HS-A180 |
MDR-ZX310 |
.. |
.. |
Frequency
Response upper |
22000 Hz | 24000 Hz |
20000 Hz |
45000 Hz
(Denon AH-D600)
40000 Hz
(Sennheiser HD700)
25000 Hz
(HA-SR50x) |
Frequency
Response lower |
10 Hz | 10 Hz |
20 Hz |
8 Hz
(HA-SR525)
5 Hz
(Denon AH-D600)
3 Hz
(Bowers & Wilkins P9 Signature) |
Imedance
at 1 kHZ |
32 ohm |
24 ohm |
|
2834 ohm
(BOSE QuietComfort 20)
488 ohm
(BOSE QuietComfort 35)
150 ohm
(Sennheiser HD700) |
| Sensitivity |
103 dB | 98 dB |
|
111 dB
(Bowers & Wilkins P9 Signature) |
Driver
unit
size |
30 mm | 30 mm
Dome type |
|
50mm
(Denon AH-D600)
40 mm |
| colour availability |
Black, White, Blue, Red | Black, White,
Blue, Red |
|
|
| Features | Deep Bass
1.2m cord
Plug:
gold-plated iPhone compatible slim plug |
Plug:
gold-plated 4-conductor L-shape stereo mini |
|
Remote control, Mic,
noise-reduction
1.4m cord
volumn control
some may have protective carrying pouch or case.
Adaptor.
Detachable cable |
| Info on Packaging | Some
specifications |
No specification
of Frequency Response range or Impedance, etc !! 😧 |
|
|
| Reiews seen on www | Positive.
Bought for teenagers. (T.T) |
OK. cheap. comfortable. For short commute. Sound not good. |
|
|
Other Info
| Magent type: Neodymium
Maximum Input:
500mW (IEC)
| Maximum
Capacity:
1000 mW
Available as standard type or Android type.
|
| 1000 mW
Distortion <0.2% (1KHz/10mW) (Bowers & Wilkins P9 Signature)
Distortion <0.4% (1KHz/10mW) (Bowers & Wilkins P5 Series 2)
operate with battery (BOSE Quiet Comfort 25 Acoustic Noise Cancelling) |
Dimension
(cm) |
L21, W17, D5.5 |
|
| |
| Weight | 260 g
108 g |
125 g
without cord |
|
365 g
(Denon AHD600) ,
413 g (B&W P9) |
Price
RPP | USD 25.00 |
USD 39.99
GBP 25.00 |
|
|
| Company HQ | Japan |
Japan |
| |
| Made in | PRC |
PRC |
mostly PRC |
|
| Materials?? | |
|
|
|
I took the JVC one
though I do not norally like get black ones.
I like wider range of frequence response.
Higher impedance is good.
Many people said average range for human is 20-20kHz.
But "average" is meaningless.
People
with good hearing,
especially young people and some sensitve people,
the range is more than that.
Why would people be misled to buy average products
sacrificing the enjoyment / capability to hear full range of music/sounds?
Maybe I shall look for something like 8-25kHz or 6 - 30kHz.
Sometimes there are test on www.
Touch wood that I can still hear higher notes.
Other notes.
more wireless and or bluetooth headphones are in the market,
the specifications are slightly weaker than the one with wire/cable.
It is strange that in some countries,
manufacturers & retailers withhold specifications
on products.
To me, that is a humiliation of our intellectual capacity.
Oh, is it due to the complains or feedbacks from
those who cannot comprehend data well?
Pity. That drags down the standard of our civilization.
p.s.
Originally I plan to get a pair of shoes.
After trying 4, I found the heals, er,
2 too high, 2 too low/flat,
I walked into a supermarket
for retail therapy.
Given you had read
how I evaluate and choose pocket diary,
you won't expect me to just buy a headphone that quick.
; )
The previous headphones I have are mostly just the earbud type
which came with either my walkman, discman, mobile phones, etc.
Except one shocking pink one. 😊
Consumers are often not given all the facts
to help make informed decisions.
Some locations of shops do no have data signal to go on line.
Many reviews in the media are not fully neutral.
Consumer magazines reviews are not professional enough, either.
