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post #931 of 1319

How would I check this by ear for you?

 

I can try to do it with some instructions :)

 

From Headfonia.com  Fostex hp_p1 review:

 

 

  • Filter 1 is the linear sounding version. More spacious and more laid back sound with more apparent frequency extension. This filter, dubbed the “sharp roll off” filter is excellent for classical music. Although it is not neutral in the sterile sense (you still get good vocal presence and punchy bass), the amount of sibilance present on mainstream Rock & Pop recording is bound to be noticeable by most people, simply due to the more apparent upper frequency extension. Paired with Fostex’s TH-7B headphone, it’s among the best non-desktop set up for classical, next to a HM-801 & HD800 combo.
  • Filter 2 is the forward and more agressive sounding version. More engaging vocals, punchier and beefier bass, shorter decays, far less levels of sibilance, this is the filter I would recommend for mainstream music. Paired with a forward sounding headphone like the Sennheiser HD25-1, the synergy is simply superb.

 

 

 


Edited by ExpatinJapan - 2/26/13 at 4:20am
post #932 of 1319

I have some Etymotic HF2, they are 16 ohm impedance. The filter does the same as when using the T5p. It is a very subtle difference. Possibly extremely low impedance IEMs are needed?

post #933 of 1319
Quote:
Originally Posted by ExpatinJapan View Post

How would I check this by ear for you?

 

I can try to do it with some instructions :)

 

From Headfonia.com  Fostex hp_p1 review:

 

 

  • Filter 1 is the linear sounding version. More spacious and more laid back sound with more apparent frequency extension. This filter, dubbed the “sharp roll off” filter is excellent for classical music. Although it is not neutral in the sterile sense (you still get good vocal presence and punchy bass), the amount of sibilance present on mainstream Rock & Pop recording is bound to be noticeable by most people, simply due to the more apparent upper frequency extension. Paired with Fostex’s TH-7B headphone, it’s among the best non-desktop set up for classical, next to a HM-801 & HD800 combo.
  • Filter 2 is the forward and more agressive sounding version. More engaging vocals, punchier and beefier bass, shorter decays, far less levels of sibilance, this is the filter I would recommend for mainstream music. Paired with a forward sounding headphone like the Sennheiser HD25-1, the synergy is simply superb.

 

 

I thought they were the exact opposite! 

 

ADD: So much for my perception.


Edited by AJHeadfi - 2/26/13 at 4:48am
post #934 of 1319

And from the Fostex hp_p1 manual:

 

 

There are two switch positions; “1” and “2”.


1: Conventional digital filter called “sharp roll-off filter”.
2: AKM’s newly developed digital filter called “mini- mum delay filter”. It accurately reproduces the original recorded sound without pre-echo.

 

 

<Memo>:The [FILTER] switch only affects the headphone output. It does not affect the [LINE OUT] jack. 

post #935 of 1319

That's more like it. They are ever so subtle.

post #936 of 1319
Quote:
Originally Posted by ExpatinJapan View Post

And from the Fostex hp_p1 manual:

 

 

There are two switch positions; “1” and “2”.


1: Conventional digital filter called “sharp roll-off filter”.
2: AKM’s newly developed digital filter called “mini- mum delay filter”. It accurately reproduces the original recorded sound without pre-echo.

 

 

<Memo>:The [FILTER] switch only affects the headphone output. It does not affect the [LINE OUT] jack. 

 

Thx. I'm gonna need to go back to the maker who told me about switch being a headphone out impedance change that he's incorrect.

post #937 of 1319
Quote:
Originally Posted by ExpatinJapan View Post

How would I check this by ear for you?

 

I can try to do it with some instructions :)

 

From Headfonia.com  Fostex hp_p1 review:

 

 

  • Filter 1 is the linear sounding version. More spacious and more laid back sound with more apparent frequency extension. This filter, dubbed the “sharp roll off” filter is excellent for classical music. Although it is not neutral in the sterile sense (you still get good vocal presence and punchy bass), the amount of sibilance present on mainstream Rock & Pop recording is bound to be noticeable by most people, simply due to the more apparent upper frequency extension. Paired with Fostex’s TH-7B headphone, it’s among the best non-desktop set up for classical, next to a HM-801 & HD800 combo.
  • Filter 2 is the forward and more agressive sounding version. More engaging vocals, punchier and beefier bass, shorter decays, far less levels of sibilance, this is the filter I would recommend for mainstream music. Paired with a forward sounding headphone like the Sennheiser HD25-1, the synergy is simply superb.

 

 

 

+1 with the HD25's....

post #938 of 1319

If it was output impedance then you would not hear the difference when using the line out jack to an external amp. 

post #939 of 1319
Quote:
Originally Posted by dallan View Post

If it was output impedance then you would not hear the difference when using the line out jack to an external amp. 

Gotta think about the post I was going to make :)


Edited by Saraguie - 2/26/13 at 2:08pm
post #940 of 1319

I remember hearing the difference so I assume it is a dac filter not an amp output impedance....if that clarifies my statement.

post #941 of 1319

After receiving my HP-P1, I've tried it both w/ my iPod 6G and iPhone 4 & 5 and have an observation or two:

 

On the iPod 6G, I have 256k AAC that I transcoded myself from lossless FLAC files in my collection and the iPhone 4 and 5; I primarily listen to Spotify Premium (320k).

 

On the iPod 6G, with the 256k AAC, the HP-P1, and Etymotic ER-4P (via S adaptor), I hear the graininess in the midrange very clearly, that others have spoken about with the HP-P1.  Listening to the 320k (OGG?) stream from Spotify is very pleasant and doesn't exhibit this graininess.

 

I've yet to attempt listening to anything from the iTunes store to see if it was an issue in how I transcoded the AAC files, but IMO, the way things stand with my setup now, the AAC music on my iPod is almost unbearable via the HP-P1.

 

Has anyone else noticed similar results?

post #942 of 1319

I am using the HP-P1 with an IPC 7G with all AIFF lossless. Using my ACS T1 CIEM's I am not experiencing any grain in the sound. It is a very nice presentation. I generally use filter 2.

post #943 of 1319

I only use lossless and filter 1 myself.

post #944 of 1319
Quote:
Originally Posted by dallan View Post

I only use lossless and filter 1 myself.

I may have to punt back to lossless, but I can't fit my entire catalogue in 160G that way.  But, it's quality over quantity at that point.

post #945 of 1319
Quote:
Originally Posted by sinkr View Post

Quote:
Originally Posted by dallan View Post

I only use lossless and filter 1 myself.

I may have to punt back to lossless, but I can't fit my entire catalogue in 160G that way.  But, it's quality over quantity at that point.

That was my dilemma as well. It takes a while to re-load with different tunes but I don't want to buy multiple IPC's!

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