ifi, iCan Signature Pro Headphone Amp

With enough grunt to power the Susvara, and three modes of amp (SS, Tube and Tube+) this is a brilliant amp that works with plenty of headphones.

I used this amp with the Susvara, Abyss Dianna v2, Abyss 1266, Focal Utopia, Radiance, Clear, DCA Aeon2 Noire and ZMF Verite Closed. Only the 1266 was underwhelming, no surprises there. It served as my desktop amp running off the QuTest. Great combo. 

Add to its three amp settings, xBass, 3D+, 2 gain settings and multiple inputs, makes the iCan a brilliant option for someone who wants a versatile, super competent amp that doesn't take up much space. Oh, and its design is rather sexy especially when you have the tube glow happening. 

This amp deserves a better home than I can offer. Its not getting used that much and is too good to be left sitting around. 

Further Information: 

1. Tube and Solid-State Modes: Users can switch between solid-state and tube amplification, providing versatility in sound signature.
2. High Output Power: The Pro iCAN is capable of driving a wide range of headphones, from sensitive in-ears to power-hungry planar magnetics.

3. 3D+ and XBass+: These are sound-enhancing technologies developed by iFi. 3D+ aims to recreate the live stage experience, while XBass+ adds depth and richness to the bass without muddying the midrange.

4. Balanced and Single-Ended Outputs: Offers both balanced (XLR) and single-ended outputs, catering to a variety of headphone types and other gear.

5. Multiple Inputs: It can accept inputs from balanced, single-ended, and other sources, making it highly versatile in a variety of setups.

6. High-Quality Components: Uses premium components for a high-fidelity sound experience.

7. Fully Balanced Design: Ensures lower noise and cross-talk.

8. Sturdy Build: Its robust construction promises longevity and a premium feel.

9. Wide Frequency Response: Ensures detailed sound reproduction across the spectrum.

If you are looking for the features of a specific "Signature Pro" variant or a product released after January 2022, I recommend checking the manufacturer's website or contacting the company directly for the most updated and accurate information.