Description

N3 Ultra
Military Grade NOS Vacuum Tube

Proprietary Gen3 Tube Circuit
Triple Timbre Digital Audio Player

The Beauty of Simplicity Vintage Tubes, Cutting-edge Sound

The N3 Ultra uses a fully-customized operating system that streamlining to focus solely on audio application.
Creating a device that provides an authentic and minimalist experience, allowing users to enjoy the new auditory pleasure brought by the vintage JAN6418 vacuum tubes.

Military-grade NOS Tubes Applicable to All Analog Outputs

Equipped with two Raytheon JAN6418 military-grade miniature direct-heated pentode NOS vacuum tubes.
The N3 Ultra offers both single-ended 3.5mm and balanced 4.4mm Headphone and Line level analog outputs, each capable of producing both vacuum tube and solid-state timbre.

Shock Absorber and Suspension In-house developed mechanical and circuitry upgrades minimize microphonic effects

Custom-molded shock absorption Silicon housing to hold and shield the JAN6418 vacuum tube.

Designed pairs of suspension pins into the CNC aluminum frame of N3Ultra, the JAN6418 is hanged vertically with suspension effect.
Integrated the miniature vacuum tube with the body frame, achieving multi-directional stress relief for the tube’s filament.

Enhance stability by Introduce an appropriate amount of inter-stage loop NFB to inhibit the closed-loop gain
Employ FET to control the power supply of the vacuum tube and stabilize the working current of the tube filament

Classic Modern | Solid-State Up to Three Timbres in All Analog Outputs

Instead of using the miniature pentode tube as an audio buffer, N3Ultra adopts Cayin’s Gen3 vacuum tube technology and employed a two stage timbre circuit for JAN6418:

First Stage: connect the JAN6418 as a low gain voltage amplifier
Second Stage: a FET buffer is added to improve the driving capability of the timbre circuit
By varying the connection method of the screen grid of the pentode tube, the JAN6418 incorporates local NFB through the screen grid, resulting in two distinct styles of circuit response, distortion, and output impedance.

Fun and Versatile Portable Source
Dual Line Out

On top of a dedicated 3.5mm single-ended line out, the 4.4mm balanced output can be configured into Phone out or Line out.
Maximum compatibility with configurable output levels

• 3.5mm: 2.1V (High), 1.6V (Mid), 1.0V (Low)

• 4.4mm: 4.2V (High), 3.2V (Mid), 2.0V (Low)

Enable user to connect the N3Ultra to a variety of portable, desktop and home audio devices

Clean and Unamplified

Line Out is fixed voltage line level output bypassing volume control and headphone amplification.
Serve as high quality source for headphone amplifier (portable or desktop) and integrated amplifier in home audio systems

Applicability of Tube Timbers

Solid-State, Classic tube and Modern tube timbres are available to all analog outputs, including 3.5mm and 4.4mm headphone and line output options.

Versatile Interface Expand Beyond DAP
Unlocking Numerous Hi-Fi Applications

Headphone Output/Line Output

USB Audio DAC

N3Ultra Functional Diagram (Left Channel Only)

Customizing with Parametric EQ
Unlocking Numerous Mix and Match Synergy

A 10-bands parametric EQ is specifically designed for the N3Ultra, offering unlimited sound tuning possibilities.

Allows detailed customization of IEM pairing according to listening preferences, creating a personalized audio experience tailored to the user.

Digital Audio with Fully Differential Output Dual AK4493S DAC

Dual DAC chipset operates in Mono mode for fully differential output.

Independent DAC chips and analog audio circuits for each channel minimize crosstalk, enhancing the audio clarity and stereo separation.

Fast Charging Long Playback Duration

Hefty 3.85V 4500mAH Lithium battery with a carefully tuned power management system
Continuous playback up to 11.8 hours with 3.5mm single-ended IEM in solid-state timbre, and 7.6 hours with 4.4mm balanced IEM in vacuum tube timbre
Recharge quickly with QC3.0, can charge up your DAP from 20% to 80% in around 1 hour

High Performance with Portability

One TF card supports up to 1 TB, and can further expand storage through OTG USB for flash drives and card readers

4.1″ 720×1280 touch screen, fast response times and high frame rates for clear, wide-angle viewing and intuitive operation

Cater to operational preferences, provides physical knob and buttons on top of the touchscreen

Weighing just 204g, the device is perfectly sized for one-handed use and pocket-friendly

The Smart glowing HOME button serves as a sampling rate indicator. It also doubled as a BACK key for routine file/menu operations

Runs on an Android-based system with a Qualcomm 425 CPU, offering a tailored UI for smooth and responsive control

Laser-drilled side-mounted tube window lights up with a warm glow as music plays, enhancing the immersive musical atmosphere


This item is brand new & sealed.

100% POSITIVE RATED EBAY SELLER
BUY WITH CONFIDENCE
Dispatch via Royal Mail 48hr Tracked Service


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