Alter Ego x Astral Acoustics Cable Shoot-out
Hey everyone, it's been an eventful past two weeks between audio arrivals, tour units, and loans. My favorite recent acquisition has been the
Melodic Artification Alter Ego which I took a liking to during a MusicTeck demo about a month ago now. I'll share impressions on the Alter Ego at a later date. Today, I wanted to share some cable impressions from
Astral Acoustics, and another from
Beat Audio - the Oslo MK4 which I was able to re-demo.
A big thank you to
@MusicTeck for sending over the following:
Astral Acoustics:
- Eclipse (flagship silver)
- Reference Silver
- Stage 5.5 (palladium-plated silver & gold-plated copper)
- Stage 6 (palladium-plated silver)
as well as the
Beat Audio Oslo MK4 which has been popular in the circles I frequent.
Without further ado—
Astral Acoustics Eclipse ($950)
I tried the Eclipse x Alter Ego pairing during a previous MusicTeck visit. Incidentally, that was my first time hearing about Astral Acoustics and my first time demoing Alter Ego as well.
While the stock cable for the Alter Ego is
serviceable, it's memory-prone and I have trouble keeping it behind my ears without using the chin slider. Sonically, the timbre's a bit harsh and the stock cable doesn't have the best treble extension.
Eclipse addresses all these issues. Demoing on my CMA18 Master and using Divinus Velvet tips on Alter Ego, I found Eclipse to have more analogue, 3D-sounding vocals, boosted resolution overall, and a more extended, vibrant treble. There was also a slight bass bloom and increased bass dynamics.
I found Eclipse a significant improvement over the stock cable in terms of engagement and overall technicalities. It's the pairing I'm running personally, and the one that was recommended by Leo from MusicTeck.
The Reference Silver cable was also great in different ways, at a much lower price:
Astral Acoustics Reference Silver ($750)
The Reference Silver goes for a cleaner, less colored sound while still maintaining a nice timbre. Compared to Eclipse, the bass is tighter and tidier, and the stage has noticeably more depth than on Eclipse which stages well in its own right.
Reference Silver's background is noticeably blacker, and notes sound like they have more room compared to Eclipse's. Imaging is superb as well.
Reference Silver's vocals have great clarity but are a touch less analogue and 3D-sounding than Eclipse's. The midrange is still superb and musical, it's just that Eclipse's midrange just happens to be one of its strengths. Reference Silver's midrange has no hint of sterility or coldness.
True to its moniker, Reference Silver is a balanced, reference-type cable while still maintaining a sense of emotion. Eclipse sounds more V-shaped in comparison.
Eclipse Pros:
- More dynamic and resolving
- More 3D and analogue mids
- Added treble vibrance and extension
- V-shaped compared to Reference Silver
Reference Silver Pros:
- More convincing, fleshed out stage than Eclipse's with great stage depth
- Blacker background
- No bass bloom. Cleaner, tighter bass compared to Eclipse's
- More balanced sounding than Eclipse with great end-to-end extension
Astral Acoustics Stage 6 ($1480)
Unlike Eclipse and Reference Silver which were different takes on silver cables, the Stage series are cables that use a combination of materials.
This cable, the
Stage 6, is made of palladium-plated silver and has a grayish hue. On Astral Acoustic's website, Stage 6 is referred to as their "best cable yet" and commands their highest price.
Stage 6 is a highly-resolving, slightly darker cable than both Eclipse and Reference Silver. Its stage size is similar to Eclipse's or slightly bigger, and a little smaller than Reference Silver's. Despite the stage being similar to Eclipse's it had more of a sense of space surrounding notes.
Where Stage 6 was
most impressive and superior to both the Eclipse and Reference Silver was in its depth imaging and separation. Like Eclipse's, its vocals were also 3D-sounding but slightly more relaxed. Its bass had Eclipse's dynamics while sounding a bit cleaner. No bass bloom to be found here.
I see Stage 6 as an anti-fatiguing cable that takes the edge off harsh treble and transient attacks while improving techs. Stage 6 has a dynamic, fuller presentation, with remarkable instrument separation and a sense of openness.
Astral Eclipse Stage 5.5 ($950)
Of the cables listed, Stage 5.5 has the most exotic mixture of materials being made of palladium-plated silver & gold-plated copper.
Stage 5.5 has a slightly warmer sound than Stage 6's, but doesn't lean dark like Stage 6 does. It has a more energy during guitar attack compared to Stage 6, and sounds fairly open, wide, and deep sounding as well. I think Reference Silver slightly edges it out in stage size.
Stage 5.5 is very dynamic and is generally "correct" sounding. Stage 5.5 almost sounds like a typical copper but with good treble extension. It's very safe-sounding in terms of tonal balance.
The bass is clean and meaty, with no bloom. It's similar to Reference Silver's bass but with a touch more thump. I think Eclipse and Stage 6's edges it out slightly in bass dynamics and in the 3D-ness of their vocals.
Stage 5.5 is like a slightly warm-tilted Reference Silver. I see Stage 5.5 and Reference Silver as the most "normal" and safe-sounding of the Astral cables that I've tried, and therefore the best entry points to those wanting to give their cables a try.
Beat Audio Oslo MK4 8-wire ($1800)
This is my second time demoing the 8-wire variant of Oslo MK4. I do think it's the least attractive cable of the bunch, but sonically it's pretty impressive.
The Oslo has a very soft and gentle timbre that comes across as very pleasant, but sometimes a bit too polite as can be the case in its bass. The Oslo has probably the widest stage of all the cables in this post. It has considerable depth as well, but the depth doesn't feel as fleshed out as Reference Silver's and doesn't have the depth imaging and separation that Stage 6 has. Still, its impressive in this regard and can be the most immersive sounding of the bunch due to its sheer stage size.
Oslo is very resolving, resolving microdetails adeptly. It emphasizes the attack of notes, which aids with imaging, but can be a double-edged sword coming across as occasionally sharp or sibilant in poor recordings.
Oslo has a slight treble emphasis, but do to its characteristic softness it doesn't come across as bright to me. This softness also finds its way into the bass which sounds clean, but lacks sheer physicality. It won't necessarily
detract from the bass, but it won't add anything to it either, and won't touch the bass dynamics of the Eclipse or Stage 6. It lacks the dynamic contrast found in Eclipse and Stage 6 as well.
Oslo is an interesting cable. If you pair it carefully with an in-ear that plays to its strengths, I can see Oslo elevating that pairing quite a bit. I guess this is true for any cable/in-ear pairing, but I do think Oslo brings a lot to the table.
Best to worst—
Bass: Stage 6 > Ref Silver = Stage 5.5 > Eclipse > Oslo
Vocals: Eclipse > Oslo >= Stage 6 = Ref Silver = Stage 5.5
Treble: Eclipse > Ref Silver > Oslo > Stage 5.5 > Stage 6
Stage: Oslo = Ref Silver > Stage 5.5 > Stage 6 = Eclipse
Resolution: Eclipse = Oslo = Stage 6 > Ref Silver = Stage 5.5