[BobMajor]

When I first got the ER-6 I was disappointed with the lack of bass response. This was because the treble was so pronounced that you couldn't turn the volume up enough to hear the bass.

Previously Redshifter has suggested to tame the excessive treble of the ER-6 by placing a thin sheet of open cell foam between the replaceable ear piece and the filter.

I found that doing that reduced the treble too much and almost eliminated the sense of the space in which the recording was made.

I have achieved perfect satisfaction using the following procedure: I cut an almost microscopic piece of open cell foam (I use an x-acto blade); I then placed it into the channel of the replaceable ear piece (note that the foam should only block about one half of the channel--that is you should be able to see through about half of the channel). Then you connect the ear piece back to the driver.

I have found that although I like the ease of using the silicone tip and have never like using foam ear plugs, that the foam plug definitely blocks more noise and creates a better seal for good base performance.

I'm very satisfied with the performance of the ER-6 using this method.

 

[skagen]

Interesing idea.

But what kind of source/recordings are you using with the ER-6? I've found that any bass problems I had with the ER-6 were really source-dependent. I'm guessing that ths is becuase the ER-6 is neutral and doesn't color the sound, so what is there is what you get.

For instance, with a Sony MZ-R909 minidisc, bass was weak. But with a Sharp DR7 (flat eq) bass ws better. And with bass boost on level 1/3, I think the DR7 is a perfect match with the ER-6.

Recording type makes a difference too. With analog recodings from minidisc with bass was weak. With optical digital recordings, all the bass is there in the ER-6 - even without bass boost on the DR7.

So if for instance you're using a Sony Minidisc or PDCP - which are known to be pretty anemic in terms of amp power and the bass potrion of the sound - it wouldn't be surprising that the bass isn't there with the ER-6, which is like 48 omhs of resistance.

 

[BobMajor]

I listen to classical music and prefer recordings which have a well-defined sense of space to the recording location.

I tested the ER-6 with both my portable source, an Archos MP3 Jukebox Recorder using the replacement Rockbox firmware, also with my home setup which includes a Sony CDP CA80ES player and Headroom Home amplifier. I then compared these sounds with my Sennheiser HD600 with Cardas cable.

My conclusion at least for my ears is that the ER-6 gives a much brighter signal than the Sennheiser and that the alteration to the ER-6 I suggested brought it into line with the Sennheiser sound in terms of neutral frequency response.