iFi ZEN CAN Signature Headphone Amplifier

ActivEQ is a specialized circuit designed to calibrate the amplifier's frequency response to match the specific sonic characteristics of the Sennheiser HD 6XX and HD 650. It helps smooth out the midrange and improve the overall clarity, ensuring these headphones perform at their absolute best.

Yes, you can use it with any pair of headphones. While the ActivEQ is specifically tuned for the HD 6XX/650, the amplifier remains a high-performance, fully analog device that provides excellent power and fidelity for a wide variety of other headphone models.

XSpace is an analog spatializer that widens the soundstage, creating a more immersive, speaker-like listening experience. It is particularly useful for recordings that feel too 'in-your-head' or narrow, helping to place instruments and vocals with more perceived space.

The four gain settings (0dB, 6dB, 12dB, and 18dB) allow you to match the amplifier's output to the sensitivity of your headphones. Start at 0dB and increase the gain only if you find you cannot reach your desired volume level comfortably; this ensures you maintain the best signal-to-noise ratio.

The ZEN CAN Signature 6XX is a dedicated analog headphone amplifier, meaning it does not have a built-in digital-to-analog converter. You will need to connect it to an external DAC or an analog source, such as a CD player or a turntable with a phono stage, via the RCA inputs.

The 6.35mm jack is a standard single-ended connection compatible with most consumer headphones. The 4.4mm output is a balanced connection, which provides a cleaner signal path and higher power output, making it the preferred choice if your headphones have a balanced cable.