The sound is very smooth.
I can get a sufficient amount of volume on gain 1. At about the three quarter mark
The sound is close to the HE 150 with music and vocals fairly even, the vocals being a touch ever so slightly more forward than the music.
On gain 2 the results are fairly much the same.
The TY Hi-Z is an intimate earbud with a full sound, sound stage is medium, separation is quite good, layering is minimum. A bit warm at times in the lows. Mids are active and energetic, although not a defining feature.Treble reaches just far enough to give a sense of space, not extended.
The overall smoothness becomes more apparent. the TY-Hi-Z 150 4.4mm being a little bit warmer in the mids.
The 150s being a bit more airy and more transparent and lighter.
the 150 having a bit more warmer low end, and smaller stage.
At times the 4.4mm version seems to sit in the middle and take the best of both worlds of the afore mentioned buds.
If I had a 4.4mm to 3.5mm SE adapter I would have liked to run it through amp 1 on the ibasso DX200 for a better A/B test.
Results may perhaps vary when using with different 4.4mm daps.
Note: It is especially tuned for the Sony 4.4mm daps, perhaps the more warmer model I expect.
TY Hi-Z 150ohm 4.4mm Balanced HiFi Earbud
Its tuned specifically for the Sony series 4.4mm balance port.
Cable Material: 8 core silver-plated handmade twisted wire
Frequency range: 16-23000Hz
Plug: 4.4mm balanced
From Penon Audio
It doesn`t fit securely into my particular ear shape, mine preferring a smaller Yuin type shell. This might be alleviated by using some ear hooks to hold them more flush If one wants the more fuller, deeper sound it can offer.
One can tailor the sound slightly with using donuts or full covers. Also having them hard against the ear canals increases the low end, whilst having them sit loose gives a bit more air to them.
A decent dap or added amp with a bit of power is needed to get the most out of any of these earbuds.