N3 Ultra

Vintage Tube Character Meets Modern Digital Audio
The N3 Ultra is a dedicated digital audio player designed for listeners who demand exceptional sound quality without distractions. Its streamlined, audio-focused operating system delivers a pure listening experience, while dual Raytheon JAN6418 military-grade vacuum tubes introduce the warmth, texture and musicality that only true tube amplification can provide.

Dual Military-Grade NOS Vacuum Tubes
At the heart of the N3 Ultra are two genuine Raytheon JAN6418 New Old Stock vacuum tubes. Unlike conventional portable players that use tubes purely as buffers, Cayin's advanced implementation allows the tube circuitry to influence all analogue outputs, including both 3.5mm single-ended and 4.4mm balanced headphone and line outputs.

Advanced Anti-Microphonic Tube Design
To ensure stable performance in a portable device, Cayin has developed a sophisticated suspension and damping system. Custom silicone shock absorbers, suspended tube mounting and carefully engineered circuitry work together to minimise microphonic effects, reduce vibration sensitivity and maintain consistent sonic performance wherever you listen.

Three Distinct Sound Signatures
Experience your music in three unique ways. Choose the warmth and richness of Classic Tube mode, the refined balance and clarity of Modern Tube mode, or the precision and neutrality of Solid-State mode. Thanks to Cayin's third-generation tube technology, each timbre delivers a genuinely different listening experience across all analogue outputs.

Flexible Connectivity for Every System
The N3 Ultra is equally at home in portable and desktop audio setups. Alongside dedicated headphone outputs, both the 3.5mm and 4.4mm connections can be configured as line outputs with selectable voltage levels, making integration with portable amplifiers, active speakers and hi-fi systems effortless.

Pure Line Output Performance
When configured as a line source, the N3 Ultra bypasses volume control and headphone amplification stages, delivering a clean fixed-level signal for use with external amplifiers and home audio equipment.

Extensive Digital Audio Capabilities
Beyond its role as a standalone music player, the N3 Ultra functions as a high-performance USB DAC and digital transport. USB Audio input/output and S/PDIF output support allow seamless integration into a wide range of hi-fi systems and digital audio workflows.

Precision Sound Customisation
A powerful 10-band parametric equaliser gives listeners complete control over their sound. Fine-tune frequency response, optimise headphone pairings and create personalised sound profiles tailored to your music and preferences.

Dual AK4493S DAC Architecture
Two AK4493S DAC chips operate in dedicated mono mode, creating a fully differential signal path. Separate DAC and analogue stages for each channel reduce crosstalk, improve channel separation and reveal greater detail across the entire frequency range.

Audiophile-Grade Volume Control
The N3 Ultra employs the JRC NJW1195A four-channel analogue volume controller, delivering exceptional channel matching, low distortion and precise level adjustment while maintaining excellent power efficiency.

Ultra-Low Jitter Clock System
Dual Accusilicon AS318 femtosecond oscillators provide highly accurate clocking with exceptionally low phase noise. The result is reduced digital artefacts, improved timing accuracy and a more natural, engaging musical presentation.

Long Battery Life with Fast Charging
Powered by a substantial 4500mAh battery and intelligent power management system, the N3 Ultra delivers up to 11.8 hours of playback in solid-state mode and up to 7.6 hours in tube mode. QC3.0 fast charging enables rapid top-ups, reaching approximately 80% capacity in around one hour.

Designed for Portable Hi-Fi Excellence
Featuring a vibrant 4.1-inch 720 × 1280 touchscreen, responsive physical controls and support for microSD cards up to 1TB, the N3 Ultra combines convenience with audiophile performance. Weighing just 240g, it remains comfortable for one-handed operation while retaining the premium feel of a precision-engineered music player. A glowing tube window and intelligent sampling-rate indicator further enhance the unique listening experience.