[seanwee]

Got a new pair Iems , the CKR-9s and im currently burning in with pink noise and logarithmic sine.
 
I have always looked at the specifiations on the box without ever knowing what they meant........
Can someone Please explain what they mean to me?
 
Driver: Dynamic 13mm x 2
 
Output Sound Pressure Level: 109dB/mW
 
Frequency Response: 5 ~ 35,000 Hz
 
Maximum Input Power: 200mW
 
Impedance: 12 ohms

 

[SomeWiseGuy]

I can explain "Driver" and "Frequency Response".
 
Driver: does the IEM use balanced armature drivers or dynamic ones?
See this article: https://brianli.com/in-ear-monitors-balanced-armature-drivers-vs-dynamic-drivers/
 
Frequency Response: at what sound frequency range can the IEM produce?
The human ear can hear sounds between 20 and 20k Hz.

 

[seanwee]

Err thanks ? i think?
 
how about 13mm x 2 
 
2 BAs i understand ..... 
but 2 dynamic drivers?

 

[SomeWiseGuy]

Your IEM uses two dynamic drivers.
Both of them measure 13mm in size.

 

[seanwee]

I suppose u misunderstood the question.
 
Dual BAs are tuned as 1 full range and one bass........
 
How about for 2 dynamic drivers?

 

[heatofamatch]

Unlike other multi-driver products, the CKR9 is not using 2 drivers for different frequency ranges. It's got them set up against each other in what the company calls a "dual phase push-pull" setup.
 
Also keep in mind that in the world of headphones, specs have less connection to real-world performance than say, a computer's spec may suggest its capability.

 

[seanwee]

I know ,which is (was) the reason I joined head fi in the first place.

 

[seanwee]

Any idea what the maximum input power suggests?
Does it mean that if I use it amped I would risk damaging it?

 

[seanwee]

And also what does the output sound pressure level indicate and how does it affect the iems?

 

[seanwee]

I can explain "Driver" and "Frequency Response".

Driver: does the IEM use balanced armature drivers or dynamic ones?
See this article: https://brianli.com/in-ear-monitors-balanced-armature-drivers-vs-dynamic-drivers/


Frequency Response: at what sound frequency range can the IEM produce?
The human ear can hear sounds between 20 and 20k Hz.

I thought that the audible frequencies change according to age ?
Because I can hear an annoying high pitched sine coming from my WiFi repeater which my younger siblings can hear but not anyone else above 30 years of age.

 

[seanwee]

From wikipedia
 
https://en.wikipedia.org/wiki/Hearing_range#Humans