The 64 Audio Ocean is a flagship six-driver universal IEM featuring dual isobaric dynamic bass drivers, balanced armatures, and a tia high-frequency driver. Passive Acoustic Control provides up to 32 tuning configurations, while interchangeable apex modules let you adjust isolation and acoustic behavior. Premium T6061 aluminum construction and included 3.5 mm and 4.4 mm shielded UP-OCC cables complete its reference-level design.
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64 Audio Ocean Universal In-Ear Monitors

Product Description

The 64 Audio Ocean is a flagship universal in-ear monitor engineered to deliver dynamically neutral, full-range sound with exceptional realism, imaging, and musical cohesion. Built around a sophisticated six-driver, four-way hybrid system, Ocean combines two custom cone-to-cone isobaric dynamic drivers for the lows, two balanced armature midrange drivers, one high-mid balanced armature driver, and one tia™ high-frequency driver.

Ocean's dual dynamic driver iso-group delivers powerful, clean low-frequency performance while its balanced armature array maintains rich, articulate mids and realistic upper-midrange presence. At the top end, a tia™ high driver and specially refined tia waveguide work together to produce natural, open, and effortless treble with outstanding detail and spatial definition.

One of Ocean's defining features is Passive Acoustic Control, which lets listeners physically adjust the IEM's acoustic response. Two interchangeable stainless steel tia screens control high-frequency damping, while four back-vent filters change the pneumatic loading of the isobaric dynamic drivers. Combine these adjustments with four included apex™ modules and Ocean offers up to 32 different tuning configurations, making it exceptionally adaptable to different music, equipment, and listening preferences.

64 Audio's patented Air Pressure Exchange (apex™) technology relieves pneumatic pressure inside the sealed ear canal while maintaining useful isolation. With mX, m12, m15, and m20 apex modules included, users can adjust isolation and acoustic behavior while benefiting from reduced listening fatigue and a more spacious presentation.

The Champagne Copper T6061 aluminum shells feature machined faceplates inspired by aeolian ripples found in naturally shifting sediment. Ocean also includes two premium shielded cables terminated in 3.5 mm single-ended and 4.4 mm balanced connections. Each uses silver-plated UP-OCC copper in a four-core Litz construction for low-resistance, transparent signal transmission.

Specifications

• Product Type: Universal in-ear monitors (UIEMs)
• Fit: Universal
• Driver Count: 6 drivers per side
• System Architecture: 4-way hybrid driver system
• High-Frequency Driver: 1 tia™ high driver
• High-Mid Driver: 1 balanced armature driver
• Midrange Drivers: 2 balanced armature drivers
• Low-Frequency Drivers: 2 custom cone-to-cone isobaric dynamic drivers
• Frequency Response: 5 Hz–22 kHz
• Sensitivity: 103.7 dB/mW at 1 kHz
• Impedance: 9.5 Ω at 1 kHz
• Apex Isolation: -10 dB to -20 dB depending on module
• Apex Modules: mX, m12, m15, and m20
• Passive Acoustic Control: Up to 32 possible acoustic configurations
• High-Frequency Tuning: 2 interchangeable stainless steel tia™ screens
• Low-Frequency Tuning: 4 interchangeable back-vent filters
• tia Technology: tia high-frequency driver and tia single-bore design
• Tia Waveguide: Refined waveguide with meta-material technology
• Apex Technology: Air Pressure Exchange pressure-relief system with interchangeable modules
• Color: Champagne Copper
• Shell Material: T6061 aluminum
• Faceplate: Machined aluminum faceplate
• Faceplate Design Inspiration: Aeolian ripple patterns formed in sediment
• Cable Connection: 0.78 mm 2-pin
• Cable Construction: 24 AWG 4-core Litz
• Conductors: 99 strands per core
• Cable Material: Silver-plated UP-OCC copper
• Cable Impedance: 0.29 Ω total
• Included Cable Terminations: 3.5 mm single-ended and 4.4 mm balanced
• Manufacturing: Designed, assembled, and quality controlled in the United States using domestically and globally sourced components
• Included IEMs: 64 Audio Ocean Universal In-Ear Monitors
• Included Case: Carry case
• Included Foam Tips: TrueFidelity Foam Tips in small, medium, and large
• Included SpinFit Tips: SpinFit Silicone Ear Tips in small, medium, and large
• Included Silicone Tips: Silicone Ear Tips in small, medium, and large
• Included Single-Ended Cable: 3.5 mm shielded cable
• Included Balanced Cable: 4.4 mm balanced shielded cable
• Included Accessories: Shirt clip, cleaning tool, cleaning cloth, and round sticker
• Included Tuning Modules: m20, m15, m12, and mX apex modules

What It's Great At

• Customizable Flagship Sound: Passive Acoustic Control provides up to 32 configurations for adjusting bass behavior, treble damping, isolation, and overall presentation.
• Powerful, Controlled Bass: Two cone-to-cone isobaric dynamic drivers provide deep low-frequency extension with the speed and control expected from a reference-level IEM.
• Natural Full-Range Balance: The six-driver, four-way architecture is designed to combine strong low-end authority, present mids, realistic upper mids, and effortless treble into a cohesive presentation.
• Wide Imaging and Separation: The tia architecture and carefully tuned driver array create an expansive soundstage with excellent positioning and separation between instruments.
• Long Listening Sessions: Interchangeable apex modules relieve pneumatic pressure in the ear canal while allowing users to select their preferred level of isolation.
• Source Flexibility: Included 3.5 mm and balanced 4.4 mm cables make it easy to connect Ocean to portable DACs, digital audio players, headphone amplifiers, and other premium sources.

FAQ Section

Q: How many drivers does the 64 Audio Ocean use?
A: Ocean uses six drivers per side in a four-way hybrid configuration: two cone-to-cone isobaric dynamic bass drivers, two midrange balanced armatures, one high-mid balanced armature, and one tia high-frequency driver.

Q: What is 64 Audio Passive Acoustic Control?
A: Passive Acoustic Control lets you physically adjust Ocean's sound using interchangeable tia screens, back-vent filters, and apex modules, providing up to 32 different acoustic configurations.

Q: Can I change the bass and treble response of the Ocean?
A: Yes. Four back-vent filters alter the pneumatic loading of the isobaric bass drivers, while two stainless steel tia screens adjust high-frequency damping.

Q: What apex modules are included with the 64 Audio Ocean?
A: Ocean includes mX, m12, m15, and m20 apex modules, allowing you to adjust isolation and acoustic behavior to suit your listening preferences.

Q: What is the frequency response of the 64 Audio Ocean?
A: Ocean has a specified frequency response of 5 Hz to 22 kHz, providing deep low-frequency extension and extended high-frequency reproduction.

Q: Does the Ocean include a balanced cable?
A: Yes. Ocean includes both a 3.5 mm single-ended shielded cable and a 4.4 mm balanced shielded cable, so you can use it with a wide variety of portable and desktop audio sources.

Q: What cables does the Ocean use?
A: The included cables use 0.78 mm 2-pin connectors and feature a 24 AWG four-core Litz construction with 99 strands per core of silver-plated UP-OCC copper and a total impedance of 0.29 Ω.

Q: Is the 64 Audio Ocean a custom-fit IEM?
A: No. Ocean is a universal-fit IEM and includes TrueFidelity foam, SpinFit silicone, and standard silicone ear tips in multiple sizes to help achieve a secure and comfortable fit.