benf said:

  I'm confused by bass boost description of the FIIO website. It says 5dB at 100Hz, but the graph on the same page tells a different story:

Can you please update the graph with v2 measurements?

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hal rockwell said:

V1 peaks at 20Hz

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hal rockwell said:

If I recall correctly, V2 supposed to peak at 50 or 70.

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justindth said:

 
I too am confused. I purchased an E12 early evening last night after reading review after review dated between feb and may 2013. I chose this amp due to all the reviews claiming the bass boost was in the sub bass frequencies (exactly what I felt I needed from my HD600 when listening to punk music). After making the purchase I now find contradicting information on fiio's website. A claim of >5db @ 100Hz, but a chart showing a peak at the sub bass frequencies, not 100Hz. A higher frequency boost is not what I wanted at all, I feel I have that with the E11 already, which I don't enjoy the sound of and leave turned off at all times.

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The curve of the new bass boost will change to the red line
 
 

 
it means the center frequency of the bass boost will move from 20Hz to 50Hz, compare with the bass boost in E11, the center frequency is about 70Hz.
 
<snip>

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jamesfiio said:

First, finally I changed my ID from feiao to JamesFiiO. and I can still keep all my posts in the past years.

About the bass boost feature in Mont Blanc, we decide to change the design, as you can see , the current frequency response is as below





The curve of the new bass boost will change to the red line









it means the center frequency of the bass boost will move from 20Hz to 50Hz, compare with the bass boost in E11, the center frequency is about 70Hz.

The reason that some people does not feel very good about the bass boost in Mont Blanc is because there are very few bass less than 50hz so the bass

boost does not really help to enhance the bass in most song tracks. 

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justindth said:

 
I too am confused. I purchased an E12 early evening last night after reading review after review dated between feb and may 2013. I chose this amp due to all the reviews claiming the bass boost was in the sub bass frequencies (exactly what I felt I needed from my HD600 when listening to punk music). After making the purchase I now find contradicting information on fiio's website. A claim of >5db @ 100Hz, but a chart showing a peak at the sub bass frequencies, not 100Hz. A higher frequency boost is not what I wanted at all, I feel I have that with the E11 already, which I don't enjoy the sound of and leave turned off at all times.

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change is good said:

  This thread needs some life to it...
 

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justindth said:

  I received my E12 2 days ago. It must be a newer version I think as the bass boost switch seems to really thicken the sound. It does not sound to my ears like a subtle change. I'm sure many would really enjoy what the bass boost on this newer version does, however it is not what I want to complement my specific set of headphones. Would anyone be interested in trading their v1 for my newer model? I feel that the v1 may be more of what I am looking for in terms of an added bass boost.

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sbradley02 said:

Very few v1 were made. Almost all are v2.

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