General/Packaging/Build
Effect Audio's Ares S II is the second generation of their Signature series copper cable, sitting as the entry point into the Signature family for those who want in without committing to the pricier variants. This is Effect Audio's approach to giving Signature series buyers a way in without the jump straight to the top tier materials. Build quality is excellent, coming in a 26AWG 8-wire configuration with Single Material Litz Copper construction and a central solid core, wrapped in EA's UltraFlexi insulation. The Y-splitter and 4.4mm termination are solid, CNC-machined metal, and the connectors on the IEM side use EA's ConX modular system, which makes swapping connector types easy, though do note the adapters are sold separately, something to factor into the overall cost if you're planning to use the cable across multiple sources. Handling is good overall, not too stiff and not too thick, so it doesn't add unnecessary bulk when paired with the IEM. The cable also doesn't tangle easily and has minimal microphonics, both of which matter more day to day than most spec sheets give credit for
Gears Used for This Review
Spirit Torino Twin Pulse
Effect Audio Ares S II
Astral Acoustics Pulse
Foreword
My review is solely based on what I hear via my equipment and I never consider my reviews to be objective in any way rather a subjective approach. Do take into consideration that everyone's ear anatomy is not the same, so the psychoacoustics perception might be different as well, but i believe it will not stray too far
Reviewer’s Note
As with most cable comparisons, the differences here lean subtle, and I want to flag upfront that some of what's being perceived could be a placebo effect at play. Cable rolling isn't going to reinvent your IEM's tuning, so take the impressions below as a general direction rather than a definitive night and day change. If you're expecting a transformation, you'll likely be disappointed, but if you're chasing a slight shift in character or a bit more refinement out of a set you already enjoy, that's really where cables like this come into play
Sound Impression
The Twin Pulse on its own is already quite a balanced sounding IEM, and pairing it with the Ares S II builds on that rather than reworking it entirely. With the Ares S II in the chain, the overall sound gains more body, bass hits with more punch and note weight thickens up slightly across the board. It's not a drastic shift in tonality, more like the Twin Pulse's existing character gets filled in a little more, giving the presentation a touch more density and weight behind it. Treble response stays more or less similar to how the Twin Pulse sounds stock, so there isn't much of a shift happening up top with this cable, which to me speaks well of the Ares S II's overall balance, it isn't skewing the sound in one particular direction at the expense of another. Both male and female vocals carry very good body through this pairing, staying full without losing their clarity, vocals don't get buried or thinned out despite the added bass presence, they retain their texture and definition throughout. Where the Ares S II leaves its biggest mark is on soundstage, it's noticeably wider in terms of width, height and depth perception, opening the Twin Pulse up into a more spacious and three dimensional presentation than what you'd get stock. This is the kind of improvement that's immediately noticeable even on casual listening, not something you have to strain to pick up on
Comparison (Astral Acoustics Pulse)
The Pulse comes across warmer sounding overall compared to the more neutral leaning Ares S II, this difference in tonal character is the first thing that stands out when switching between the two
Soundstage on the Pulse is not as big as what the Ares S II delivers, the Ares S II takes this one clearly, and for those who prioritize spatial presentation, this is likely to be the deciding factor between the two cables
Bass quantity on the Pulse is perceived as slightly more compared to the Ares S II, which lines up with its warmer character, listeners who want a fuller low end may find themselves leaning toward the Pulse for this reason
Treble on the Pulse has more energy compared to the Ares S II's more relaxed top end, so depending on how your IEM already handles treble, this could either be a benefit or a drawback
Both male and female vocals have very good body to it on both cables, so this one's a wash between the two, neither cable has a clear advantage in the midrange in my experience
The Pulse also comes in at a higher price point compared to the Ares S II, which is worth keeping in mind when weighing the two up, especially since the sonic differences, while noticeable, aren't drastic enough to make the pricing gap an easy decision either way
Final Thoughts
This isn't the first premium cable I've spent time with, and the Ares S II earns its place in that lineup, the build quality alone already justifies a good chunk of the asking price, and the sonic shift it brings to the Twin Pulse, more body, punchier bass, and a genuinely wider soundstage, is easy to appreciate without needing to squint for it. The modular ConX system is also a nice touch for anyone who plans on using multiple sources or termination types down the line, even if it does add a bit to the overall investment once you factor in the adapters.
Compared against the Astral Acoustics Pulse, the two cables end up going in slightly different directions rather than one simply outperforming the other. The Pulse leans warmer with a touch more bass quantity and treble energy, while the Ares S II stays more neutral and pulls ahead clearly on soundstage. Neither wins outright, it really comes down to which direction of coloration you're chasing for your IEM, and the Pulse's higher price tag is something to weigh into that decision as well. If your IEM already leans warm or bassy, the Ares S II's more neutral, spacious presentation might be the better complement, whereas if you're working with something on the brighter or thinner side, the Pulse's added warmth could be the more synergistic pairing.
As always, cable rolling isn't going to turn your IEM into a different product, this is squeeze the extra bit of performance territory, not a night and day transformation. But if you're after a well built, modular cable that adds body and genuinely opens up the stage on a balanced set like the Twin Pulse, the Ares S II is a solid pick, and one I'd recommend without hesitation for those already invested in the Twin Pulse and looking to take it a step further. It strikes a good balance between build quality, sonic improvement, and price, and for those still on the fence about whether cables make a difference, this pairing is a reasonably convincing case that they do, at least to my ears
The Ares S II is sent over by Effect Audio for the purpose of this review. I thank them for the support and opportunity as always
Head over to the official store if you are interested in getting one, it is currently being priced at 279$ for 2 Pin ConX with Pentaconn OFC Plug
Effect Audio Ares S II - Non Affiliated
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