Contents

8.4 Common problems . . . . . . . . . . . . . . . . . . . . . . 68 8.4.1 Communications port error . . . . . . . . . . . 68 8.4.2 No audio in zone . . . . . . . . . . . . . . . . . . . . 68 8.4.3 User interface keypads do not

operate correctly . . . . . . . . . . . . . . . . . 69 8.4.4 Bad sound in a zone . . . . . . . . . . . . . . . . . 69 8.4.5 Auto Volume does not calibrate . . . . . . . . 70

8.5 Customer support . . . . . . . . . . . . . . . . . . . . . . . 70 8.5.1 Technical assistance . . . . . . . . . . . . . . . . 70 8.5.2 Reporting software bugs and issues . . . . 70

9.0 Restoring E4 Microcontroller Code . . . . . . . . . . . . . 72

10.0 Technical Specifications . . . . . . . . . . . . . . . . . . . . 74 10.1 Power amplifier . . . . . . . . . . . . . . . . . . . . . . . . 74 10.2 Digital signal processing . . . . . . . . . . . . . . . . . 74 10.3 Front panel indicators and control

connections . . . . . . . . . . . . . . . . . . . . . . . . . . 74 10.4 Rear panel inputs, outputs, and controls . . . . 74 10.5 E4 system serial data commands . . . . . . . . . . 74 10.6 FreeSpace® Installer™ Design File

Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . 76

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Bose E4 manual Contents

E4 specifications

Bose has long been a leader in audio technology, and their remarkable Bose E4 model epitomizes this legacy. Designed for both professional musicians and discerning audiophiles, the E4 is engineered to deliver an unparalleled listening experience.

At the heart of the Bose E4 is its state-of-the-art audio performance. The headphones are equipped with advanced drivers that produce a balanced sound profile, ensuring clarity across all frequencies. This extends from deep, resonant bass to crisp, high-frequency notes, making them suitable for a wide range of music genres. The soundstage is expansive, allowing listeners to immerse themselves in the music as if they were in a live performance.

Comfort is a priority with the E4, featuring plush ear cushions that conform to the shape of the ears. The lightweight design reduces fatigue, making them ideal for long listening sessions or extended studio work. The adjustable headband provides a secure yet comfortable fit, enhancing the overall listening experience without compromising style or functionality.

The E4 also incorporates Bose's renowned noise-canceling technology. This advanced feature blocks ambient noise, allowing users to focus solely on their music or audio productions. Whether in a noisy environment or during travel, the noise-canceling capabilities help maintain audio integrity by minimizing distractions.

Another distinguishing characteristic is the durable construction of the E4. Crafted from high-quality materials, the headphones are designed to withstand the rigors of daily use, making them a long-lasting investment. The foldable design adds an element of portability, allowing users to easily store and transport them without damage.

Connectivity options are versatile with the E4, including both wired and wireless options. The inclusion of Bluetooth technology allows for seamless pairing with devices, providing the freedom to move without being tethered by cables. Additionally, the integrated microphone enables hands-free calling and voice assistant interaction, blending convenience with high-quality audio.

In conclusion, the Bose E4 headphones embody the perfect marriage of advanced technology and user-focused design. With exceptional sound quality, impressive noise cancellation, comfortable ergonomics, and durable construction, they stand out as a top choice for anyone serious about their audio experience. Whether for professional use or personal enjoyment, the Bose E4 delivers on every front, solidifying its place in the premium headphone market.