Etymotic ER4S

Etymotic ER4B

The ER4 series, made up of the ER4S, ER4P and ER4B have been Etymotic's top-of-the-line canal phone series since their introduction in 1991. The ER4B, like the ER4S are specifically targeted towards audiophiles and professionals who desire the best quality sound possible, requiring a high quality dedicated headphone amplifier to be driven to their...

Etymotic ER4P

Etymotic Research ER6

The Etymotic ER6 is a mid-priced isolating canalphone. Featuring the same balanced driver technology used in their more expensive ER4 design, the ER6 also shares the same unbeatable isolation as the rest of the Etymotic line. At $139, these are a great option for high fidelity travel and on-the-go listening, with unsurpassed background noise...