Highly recommend 7 Hertz Timeless with CEW region. It got really good dynamic, so effin fast speed and transient, and thundering, rattling subbass. Timbre is superb A++. If you have better cables, it will perform so much better. Dynamic and bass is slightly less than Fir M5 with Eletech Illiad cable, but it can hold its own. With right tips, jvc spiral tips and cables and right synergy with CEW region, I’m pretty confident nothing below $1-1.5k can touch this. I would categorize Timeless with right tips, cables and CEW region to Fir NE4 iem in sound performance, not too far maybe about 90-95%
Thank you Tawek for recommending me CEW region. I adore the sound
And FYI, Fir Audio is the real deal