1. 1MORE Quad Driver In-Ear Headphones (Earphones/Earbuds) with Apple iOS and Android Compatible Microphone and Remote (Titanium) (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
FOUR DRIVERS - diamond-like carbon dynamic driver (like Mini speakers) + 3 balanced armatures (like Mini tweeters) deliver unsurpassed dynamic power and definition.ERGONOMIC FIT - streamlined aluminum sound chamber with perfected ergonomics ensures exceptional comfort and noise isolation.

2. Logitech UE 900 Noise-Isolating Earphones (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
Studio quality quad-armature design with three-way crossover: Four drivers per ear deliver a clean, textured, wide soundstageUE Sound Signature: Pure, undiluted, perfectly tuned audio faithfully recreates the original recording plus a low-end kick

3. MTX Audio IX2-Black Street Audio On Ear Acoustic Monitors - Black (Click Link to Check Price on Amazon)
Editor's Rating : 9.7 out of 10
Precision Quad Speaker Design, 5mm high frequencyMade for Apple Mic and Remote Control

4. NuForce Primo8 Quad-Driver Earphones with World's First Phase-Coherent Crossover Design (Click Link to Check Price on Amazon)
Editor's Rating : 8.8 out of 10
In-Ear Audiophile-Quality Speaker System: Four balanced-armature drivers in each earphone deliver a smooth, extended response, explosive dynamic realism and fatigue-free soundIdeal Balance and Accuracy: A three-way phase-coherent crossover design achieves perfect linear phase performance resulting in a natural, fully dimensional soundstage, lightning-fast transients and crystalline transparency

5. Shure SE846-BNZ Sound Isolating Earphones with Quad High Definition MicroDrivers and True Subwoofer (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
Quad Hi-Definition Micro Drivers: For extended high-end clarity and unparalleled low-end performancePatented Earphone Design with Groundbreaking Low-Pass Filter: Provides previously unattainable deep low-end performance of a True Subwoofer without sacrificing clarity or detail