Starting out with connecting the Charybdis to my Naim Uniti Atom HE directly (XLR) I then moved to an RCA connected head amp in the Cayin HA2A, keeping the Naim on DAC duties. Finally, I put in a pair of grounded XLRs, the balanced connection from Naim to Cayin worked best.
Electronic and rock quickly exposed the basic character. Magic Sword and Deadmau5 showed off “smart” bass – lively but not doof‑doof – and a knack for crunch and snap without flab. AC/DC and 80s rock landed firmly in the Charybdis swim lane for me: this thing loves distortion, guitars, and male voices, turning everything into a vivid, slightly over‑saturated close‑up. In time I started to hear a faint extra warmth or fuzz around rock guitars, as if the existing distortion had been enriched or spotlit. It worked: rock sounded terrific, but the same treble energy that made riffs exciting also brought in top‑end fatigue on “Hells Bells” and the more intense Shane Smith vocals.
The turning point was going fully balanced into the Cayin. Switching to XLR felt like the system “popped into gear.” Imaging and staging snapped into focus, the overall balance improved, and the sound gained a sense of ease and authority. AC/DC’s “Dirty Deeds Done Dirt Cheap” shifted from impressive to properly musical; instead of analysing, I just found myself enjoying it. Going back to Geronimo, I heard more space, breath and air than before, with instruments and voices articulated clearly and the depth of character in the vocals really standing out. Deadmau5’s Where’s the Drop? became a showpiece: crisp, exact bass laying the foundation for his signature ethereal elements, which floated above and around the mix to create a convincingly 3D, immersive bubble.
Through all of this, texture, detail, weight and brightness never really left the picture. I kept coming back to how heavy the headphone is and how forward the presentation feels. With the right material – Deadmau5, Magic Sword, AC/DC, High on Fire, Captain Beefheart – that forwardness reads as energy and excitement. With Home Free’s massed voices, some of the more delicate Fink material, or just longer sessions, it crosses the line into “too much,” with some vocals sounding forced and treble leaning into my ears rather than inviting me in. The Fink test summed it up neatly for me: Where the Focal Utopia OG sounds clean, spacious, authentic and articulate; Charybdis sounds bold, rich and textured and heavy, too forward, blunting some of the songs’ gentleness.