The mailman just dropped off my Tomahawks and upon first listen they are very nice, (this was a very brief listening impression). This was without any foams or donuts because I just wanted to have a quick listen. They seem to be balanced and neutral with good crisp highs, natural mids and airy with fairly wide sound stage and good imaging. The bass may be a just a tiny wee bit rolled off but has good extended sub bass. I don't mind that because I like the present and crisp highs and mids for detail and excitement. In listening to some Blues and Jazz, I believe this is a good bud for those genres. We'll see how they burn in, and how they sound with foams, but I think I will like them. I would imagine with foams, the bass will increase and the highs may be a little subdued.
For me burn in helped a bit with the veiled sound I was getting at certain frequencies. Until my shipment arrives with new buds from the Aliexpress sale I'm still using my tomahawks daily.
I bought the penon BS1 (kind of tomahawk reworked) as the reviews on here seemed to suggest that they were better at vocals and slightly less veiled sound than the hawks but in my opinion you get a slightly better vocal and slightly less thin sounding mids, but you sacrifice the airy and great soundstage and extension in the lows in the process which is a bad trade for me, also the BS1's treble is abit much at times, fatiguing in the higher frequencies
So yeah the tomahawks are nice, they just lack that little bit of smoothness at times for me personally as I like a neutral-slightly warm sound and the hawks are neutral-cold at times.
No foams gives a slightly better clarity, full foams (heigi foams for me) gives it a fuller sound imo, without sacrificing much clarity depending on the fit.
These are definitely buds I don't want to push deep into my ear, they sound better resting against my ear but not tightly as you still get the full sound (with full foams) but keep that lovely airy soundstage.
For the price they are good, just not the complete package for me!
If you could combine the best qualities of the tomahawk and the bs1 you'd have an amazing mid range bud all round. I would've loved to have seen the tomahawk in a wood shell or something done to reduce the 'metallic' veiled sound slightly. I guess some will not notice it as much with certain music genre's though