iFi Audio ZEN CAN Signature
Headphone Amplifier

Enhanced circuitry. Premium components. Signature Sound.

The original ZEN CAN, iFi's all-analogue headphone amplifier, excelled at driving demanding headphone loads with its balanced circuit design, extremely low distortion, and exceptional sonics. The ZEN CAN Signature takes this design further, featuring enhanced circuitry and audiophile-grade components.

Its balanced, symmetrical dual-mono circuitry can deliver 1890mW (11.0V) into 64-ohm loads and offer over 15V to loads of 600 ohms or higher, all through its balanced output.

3 In, 3 Out. Free to Connect.

The ZEN CAN Signature offers a range of input options, including stereo RCA, 3.5mm single-ended, and 4.4mm balanced inputs, making it versatile enough to connect with your laptops, phones, or DACs.

For output, it provides a 4.4mm balanced option for headphones that support balanced connections. It also features a 6.3mm jack for headphones with standard single-ended connectors. If you’re using earphones with a 3.5mm plug, a 3.5mm to 6.3mm adapter is available, so there’s no need to worry.

The unit also includes an analogue balanced output on the back panel, ideal for connecting active speakers via a 4.4mm to XLR adapter. As the ZEN CAN Signature is fully balanced and dual-mono circuit design, this is the recommended output option.

Premium Inside and Out

The ZEN CAN Signature employs a military-spec PCB to enhance signal integrity. It also incorporates audiophile-grade components, such as:

• ELNA Silmic II and OS-CON capacitors offer excellent noise reduction capabilities and frequency characteristics.
• iFi/AMR ‘OV’ ‘Operationsverstärker’ series op-amps provide low noise and distortion, delivering performance that equals or surpasses many high-end headphone amplifiers.
• For more details, refer to the photo below.

Unlike other headphone amplifiers that come with standard power supplies like those for notebooks, the ZEN CAN Signature includes the iFi iPower2 power supply. This features Active Noise Cancellation II to eliminate all incoming EMI and RFI noise, ensuring a clean and clear audio experience. The iPower2 is already exceptional, being more than 10 times quieter than standard power supplies. For those looking to further enhance their setup, consider the DC iPurifier2, which can further reduce system interference, as well as the iPowerX power supply.

A fully-discrete and balanced amplifier audio circuit. The full symmetric dual-mono headphone amplifier with gold-plated 4.4mm balanced connection. Premium engineering is more expensive but lowers the noise floor to a whisper-quiet levels.

As with many other iFi audio products, they have incorporated a custom OV Series operational-amplifier. This top-notch component contributes to the extremely low noise, low distortion (0.0001%) and wide bandwidth.

A Tokyo Cosmos Electric Co. (TOCOS) multi-track potentiometer is used. This has close channel matching tolerance for optimal performance (always use above 11 o’ clock).

Switching between settings has been engineered to ensure sonic transparency with advanced trench technology MOSFET is used as a muting switch.

This FET-based switching is handled by a micro-controller, which only ‘wakes up’ when the user changes a setting, thus eradicating any sonically deleterious interference.

TDK C0G (Class 1 ceramic) capacitors offer high stability and low losses for resonant circuit applications.

Getting ever closer to the theoretical ideal of pure, frequency-constant capacitance, these capacitors reduce capacitor-induced distortion to vanishingly low levels.

Panasonic OS-CON caps totaling 5,410uF give very-low Equivalent Series Resistance (ESR), excellent noise reduction capability and frequency response characteristics. In addition, OS-CONs have a long-life span and its ESR changes little even at low temperatures since the electrolyte is solid.

They are not often found in products costing

iFi use ELNA Japan Silmic II capacitors for the power supplies.

The primary constituent of the newly developed dielectric is silk fibre. This material was believed as unfathomable as an aluminium electrolytic capacitor. The new material beats silk fibre and mixes it with Manila hemp fibre to provide the dielectric to an aluminium electrolytic capacitor used for high-grade music. The result is second-to-none superior acoustic properties and excellent linearity.