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kn0x Jul 1, 2009

So, are those ER-4 as good as they are said to be? Of course, when getting expensive earphones, that's probably the first question we ask ourselves. I for one, always try to find that out before I spend hundreds of dollars on a pair. Well, I think it's well worth it's price, but...

nac Aug 6, 2009

The ER-4 was introduced in 1991, and since then the product hasn't changed much, if at all. The only thing I can remember is a "P" low-impedance version that is still sold today, as well as a variation of the P with black strain relief on the earpieces as opposed to the...

kylehase Jul 2, 2009

The ER4-P produce stunningly detailed highs. I heard new sounds in my old tracks I had never heard before. Unfortunately the bass was far less impressive. Bass was almost non-existent on my iPod and still weak, but acceptable, from an amplified source. The triple flange eartips can be tricky...

justus87 Aug 8, 2011

Excellent sound quality. Even MP3 music sounds noticeably better. If you are comfortable with inserting earbuds into your ear, you will get excellent noise isolation and a flat sound response.

sK0pe Nov 19, 2012

These are flat line canal phones, they are very analytical and cold, you get as close to an exact reproduction of sound from your source DAC. The bass is incredibly clean so if you think you know what bass is and it relates to thumping from car stereos then I would redirect you to the trash that...