Etymotic Research ER-4P to ER-4S Earphone Adapter Speaker Cables

ER-4P to ER-4S Earphone Adapter

User Reviews (1)

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codeman   Audio Enthusiast [Oct 08, 2004]

Gives the 4P's the ability to accurately reproduce sound from an amp that equals the 4S's.


Price is somewhat steep for the adapter, but the results are worth it.

Prior to ordering this adapter, I asked both HeadRoom and Etymotic Research whether the adapter truly did turn the 4P into a 4S, of if it was a close approximation. Both claimed that a 4P with the adapter was exactly the same as a 4S. So, I ordered it. I've now listend to a 4P plus adapter for almost 6 months, and have had the opportunity to compare it with a 4S for a couple of those months. They were right - I can hear no differences, even subtle ones. Bravo!

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