In my pair-up comparison I’m using a variety IEMs with their corresponding stock cable vs OSLO (2pin or mmcx). Also, using LPGT as a source, volume matched in every comparison.
64 Audio Fourte
Stock SPC vs OSLO (2pin) – Fourte has a wide soundstage to begin with, so not too much change here. The first noticeable change is in presentation of upper mids/vocals where the stock cable pushes it more forward, making it brighter and a little harsher, while Oslo pulls it slightly back, making it a little smoother in comparison to stock while also changing the sound sig to be more v-shaped. Also, treble is smoother with Oslo.
64 Audio U18t
Stock SPC vs OSLO (2pin) – I hear the soundstage being wider and also the vocals are more out of your head, extending the depth and making the staging more holographic. Interestingly enough, with Fourte the vocals were pulled more in, but here they are extended further with a more forward presentation. With Oslo I hear a deeper sub-bass extension, and overall bass feels tighter and faster. Mids are a little more organic with Oslo, yet they sound more detailed at the same time. Treble is very similar, just a bit more airiness with Oslo.
Empire Ears Legend X
Ares II vs OSLO (2pin) – with LX having a very wide soundstage to begin with, here the difference is not that noticeable, both cables sound similar and give LX a more holographic soundstage expansion. With bass, LX gains a lot more control with Oslo. You still have a deep sub-bass rumble and hard hitting mid-bass punch, but mid-bass here has a lot more control with a faster attack and shorter decay. As a result, there is a better separation between lows and mids and transition to lower mids is cleaner. With Oslo, in upper mids vocals are slightly elevated in quantity and more forward in presentation. As a result, the signature is changed from L-shaped to W-shaped since mids are now more balanced with bass and treble, but the bass is as powerful as with Ares II. Also, treble is a touch smoother here with Oslo. The only comment here, I had a hard time with LX 2pin socket, OSLO pins didn’t go all the way in. This was not an issue with other IEMs.
Stock SPC vs OSLO (2pin) – in this cable comparison I hear a little improvement in soundstage width, but overall it’s quite similar. The same with a bass, a very similar sub-bass extension and mids-bass punch, perhaps a touch less aggressive with Oslo. Most of the changes are in mids and treble. With stock cable RE lower mids are leaner and thinner, while with Oslo they are more neutral with a little more body. Upper mids with Oslo sound more natural and smoother, especially noticeable with some of my test tracks where you can hear harsher and more sibilant vocals with a stock cable while with Oslo it’s smoother and more natural. The same with treble, it’s still bright and crisp but more natural with Oslo.
ALO Ref8 vs OSLO (mmcx) – I choose a premium cable in this comparison since W80 comes with Ref8 hybrid cable. With soundstage, the width between these two cables is very similar, but Oslo pushes soundstage further out of your head, giving it extra depth for a more holographic expansion. Bass with both cables is similar in quantity, but with Oslo it sounds more analog in quality, like you are listening to dynamic drivers. Mids have a little less intimate presentation since they are a little more out of your head, but at the same time their tonality is smoother and more musical. They don’t lose any details, just tonality is more organic. Treble is very similar in extension and control. Of course, you don’t have to worry about Ref8 microphonics and Oslo cable is a lot softer.
Westone UM Pro 50 v2
Stock OFC vs OSLO (mmcx) – I hear a noticeable improvement in soundstage width when switching to Oslo cable. Similar to pair up with W80, bass quantity is similar, it has a very interesting transformation with bass sounding more like a dynamic driver, rather than BA. The bass is not as fast, but still very articulate and layered, just sounds more analog. Mids are lifted in quantity, just a little bit, and have a more natural detailed tonality. It’s not drastic, but more on a level of finetuning to perfection, sounding more organic without losing details. Treble has extra sparkle and airiness.
Campfire Audio Andromeda
ALO SPC vs OSLO (mmcx) – right away I noticed a wider soundstage expansion, while depth remained the same. Bass has a similar quality and the balance between sub-bass and mid-bass, but the quantity is a little elevated and sounds more articulate, more layered. Mids have the most noticeable change here where Oslo brings more body to lower mids and makes upper mids to sound more natural and still very detailed and layered. Also, noticeable how in a few of the sibilant test tracks I no longer hear the harshness around 6k-7k peak. Furthermore, with Oslo, treble has a little more airiness. Very good pair up in this case.
Campfire Audio Solaris
ALO Super SPC vs OSLO (mmcx) – Oslo gives soundstage a slightly wider expansion, while depth of the stage presentation is very similar. When it comes to bass, the original ALO cable gives bass a tighter and faster performance with better control, while Oslo takes this away with a more laid back low end rendering, more analog dynamic driver smoother performance. With mids, Oslo pair up gives a little more body to the sound, making mids smoother and more organic without losing details. Treble is crisper with ALO cable. While I really liked what Oslo did to Solaris mids, I still preferred the bass quality of the original ALO cable. So, unlike Andro where I liked Oslo cable better, here I preferred to go back to ALO super spc stock cable.
First of all, my hats off to DITA for being brave enough to use “oil” in the description of their cable manufacturing. I mean, soaking its ultra-pure copper wires into oil suspension of gold and silver nanoparticles is the actual process, but with so much negative talk about cables from disbelievers who refer to aftermarket wires as “snake oil”, it was truly a ballsy move. Today you can find a lot of aftermarket cables in different price ranges, but only a few companies are putting extra effort trying to come up with something new and original, and DITA is definitely one of them.
Also, without a doubt Awesome plug is very important part of DITA cables, and after you use one – it’s hard to go back to other short and pigtail adaptors. While many DAP manufacturers switching to 4.4mm balanced output, you still have a few like A&K which are sticking to their guns and using only 2.5mm balanced. Plus, the option of 3.5mm SE plug gives you flexibility to use OSLO and other Awesome-plug equipped DITA cables with your smartphones, tablets, or laptops (if they have 3.5mm headphone jack). That’s another very important benefit of DITA cables.
Awesome plug is very convenient, but you need more than just that to make a decision about cable upgrade, even despite its $599 price tag. In many of my tests I found OSLO to widen the soundstage perception to a holographic level. While some other cables try to enhance the retrieval of details and make sound crisper, that might not work with all IEMs. Instead, OSLO gives more body to the mids with a smoother and a more natural tonality while also bringing more analog punch to the bass. OSLO is a unique cable not only because of its manufacturing process, but also based on how it pairs up with and fine-tunes the sound of various IEMs. Great cable!!!