In the world of high-end personal audio, small upgrades can make a meaningful difference, especially when it comes to signal purity and system synergy. A well-designed headphone cable isn’t about changing a headphone’s identity, but about refining what’s already there: improving clarity, spatial organization, and overall coherence. The Strauss & Wagner Graz Upgrade Cable is positioned squarely in that philosophy, offering premium materials, flexible connectivity, and a balanced design approach aimed at serious listeners who want to extract the most from their headphones and source gear. Let’s explore how the Graz performs across several HiFiMAN headphones and whether it delivers meaningful sonic gains over stock cables.
What Is the Strass & Wagner Graz Upgrade Cable?
The Strauss & Wagner Graz Upgrade Cable is a premium headphone cable built to elevate audio performance. Its core components include a 4-wire 6N OCC silver-plated conductor bundle designed for high conductivity and low signal loss, and dual 3.5 mm stereo connectors at the headphone end. It comes with three interchangeable terminations: 2.5 mm balanced, 3.5 mm unbalanced, and 4.4 mm balanced, for versatile compatibility with a wide range of DACs, amplifiers, and headphone systems. The cable measures about 1.2 m (3.94 ft), offering an optimized length for listening setups, and its high-quality materials and precision engineering aim to deliver clearer, more dynamic sound with minimal interference.
Graz x HiFiMAN Edition XV Sound Impressions
Without any cable upgrades, the HiFiMAN Edition XV is a very spacious headphone with natural lows and highs. I had a minor gripe with the midrange when I initially reviewed it for my review. Does the Graz help sharpen up a timbre I found a tad veiled? Well, for the most part, the Graz does what it can to improve upon what the stock Edition XV cable can offer, especially with the 4.4mm balanced plug attached. The only parts that don’t see a significant change are the bass and low mids. This is to be expected with a silver cable, even with OCC components. Switching back and forth, I could hear a slight tinge of warmth in some tracks, but it wasn’t a consistent enough character for me to call it a stark difference.
The highs and soundstage are where the Graz features its most apparent upgrades. Treble is already one of Edition XV’s strengths, and the Graz adds even more texture. Nothing ever gets out of control with harshness and sharp peaks; the highs gain a more concentrated glimmer. This clarity is given added depth with greater airiness and height. Everything is still naturalistic, but those cymbal rings are just a tad more delicate and transparent. In terms of soundstage, the Graz allows for more breathability with the Edition XV. You get the same holographic dimension, with slightly more separation and organization. It keeps its ethereal spaciousness while making positioning a little more precise. Lastly, the midrange still isn’t the most resolving, but there’s definitely a more confident smoothness that clears out some of the fog.
Graz x HiFiMAN Ananda Unveiled Sound Impressions
HiFiMAN’s Unveiled series has been a favorite of mine, so if there was any chance one of these headphones could sound better, I’d say go for it. Does the Ananda Unveiled get better, though? In terms of upper-midrange resolution and soundstage, yes. I even felt the sub-bass express a bit more depth with a slightly fuller body. Mid-bass frequencies sounded a bit more articulated, while the sub-bass grounded the tone with more weight. You still won’t get a great amount of impact, but the detail is there. Overall, the Ananda Unveiled doesn’t jump out as a livelier headphone than the Graz, but it does add more depth to its performance. The soundstage is even more outside of your head, enlarging the headspace past any kind of barrier the Ananda might have had with the stock cable. One of my only gripes with the Ananda Unveiled was its plain vocal resposne, and the Graz does a good job cutting out more space for them to be better showcased. I still would have liked to hear more emphasized vocals, but the Graz brings everything to a more succinct balance.
Graz x HiFiMAN HE600
I found the HE600 different from a lot of the other HiFiMAN headphones, but with the Graz cable, the sound signature starts to resemble those familiar characteristics. The HE600 was a lot more closed in compared to other HiFiMAN headphones, but the Graz allows the soundstage to open up and appear less concentrated. The imaging is elevated and projected in more of a bubble, with a larger wingspan that expands almost to shoulder length. This gives the highs and mids more room to show their lush details with slightly sharper precision.
Summary
The Strauss & Wagner Graz Upgrade Cable succeeds as a thoughtful refinement tool rather than a dramatic tonal reshaper. Across multiple HiFiMAN headphones, its strengths consistently emerge in treble texture, soundstage openness, and imaging precision, with balanced terminations, particularly 4.4 mm, unlocking the most noticeable improvements. While bass weight and midrange voicing largely remain true to each headphone’s core tuning, the Graz adds polish where it matters most: air, separation, and spatial confidence.
For listeners who already enjoy their headphones but feel limited by stock cabling, the Graz offers a flexible and well-engineered upgrade path. Its high-purity silver-plated OCC conductors, interchangeable terminations, and compact length make it an easy match for modern DAC and amplifier setups. If your goal is to enhance clarity and staging without sacrificing natural timbre, the Strauss & Wagner Graz stands out as a smart, audiophile-grade cable upgrade worth considering.
The Strauss & Wagner Graz Upgrade Cable is available at Audio46.
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