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4.Ai S


The 4.Ai S, a hand crafted In Ear Monitor (IEM) utilizing the same internal design and components in the 4.A S  Custom In Ear Monitors (CIEM).


• 4 Precision tuned Balanced Armature drivers.

• 2 Dedicated drivers for Low Frequency production

• One driver for Middle Frequency production

• One driver for High Frequency production

• Dual Bore Design

• Detachable Standard Cable

Crush Proof Carrying Case

Cleaning tool

• Quality Ear Tips

Band



Shell color: Black Mamba
Face Plate: Burl Wood


The 4.Ai S requires the same painstaking hand craftsmanship that all Heir Audio CIEMs require.  The 4.Ai S offers all the advantages of an IEM, built with the same exacting standards of all Heir Audio products.

The 4.Ai S, like its cousin the 4.A S offers a clean neutral sound signature that should satisfy those that listen to classical, jazz, and acoustic or those that demand accuracy and clarity. Hear every breath, every turn of the page, even the “tic” of a metronome. “If it’s in the music, it’s in the music.



Price: $399



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