Description
Built for musicians and live-audio professionals, the 64 Audio Aspire 4 delivers pro-grade monitoring in a universal-fit package. Its hybrid driver layout pairs a single dynamic driver with three balanced armature drivers, tuned from the ground up for stage use — powerful low-end, forward mids for vocal and instrument clarity, and crisp high-end sparkle. The black molded ABS shell keeps the unit featherlight for long sets, while the stainless-steel nozzle with flange and mesh grill holds ear tips securely and resists debris.
Three signature 64 Audio technologies shape the sound: Apex Core provides built-in pressure relief via acoustic filters for a spacious, comfortable fit; the Waveguide focuses the high-frequency BA driver's energy for precise treble reproduction; and LID (Linear Impedance Design) corrects driver impedance so the tuning stays consistent across any source. The detachable 48-inch IPX cable with silver-plated oxygen-free copper runs clean under a shirt, and the included 12 pairs of ear tips in silicone and Comply foam ensure a personalized seal. Head-Fi reviewers describe the Aspire 4 as offering class-leading imaging and a vast soundstage for its class, making it equally at home listening room.
This is a demonstration unit and may show light signs of handling. Please contact us for current photos and confirmation of its cosmetic condition, included accessories, packaging, and warranty coverage.
Specifications
| Driver Configuration | 4-driver hybrid: 1 dynamic driver + 2 mid range balanced armature and 1 high balanced armature driver |
| Frequency Response | 20Hz – 18kHz |
| Impedance | 11Ω @ 1kHz |
| Sensitivity | 104dB @ 1kHz @ 1mW |
| Isolation | −20 dB |
| Shell Material | Molded ABS |
| Nozzle | Stainless Steel, 5 mm outer diameter |
| Cable | 48″ detachable IPX (Estron), 90° 3.5 mm jack, silver-plated OFC |
| Color | Black |
| Included Accessories | Carry case, silicone tips (4 types × 3 sizes), Comply oval foam tips, cleaning tool, 1/4″ adapter, shirt clip |
