Oh I know all about plentiful bass. I started this journey as an out-and-our basshead, from V-Moda to the TH-X00 I’ve had them and heard them all. The bigger the better was my go-to.That's the issue here, I am getting a good seal. I don't believe tips have a great effect on bass, moreso on treble reduction by applying smaller bores on the tips. Similar to those on the supplied filters. They don't affect bass, but treble.
I did search around and indeed by looking at graphs for the FH7 it clearly indicates the bass has been pulled back by Fiio, where as the FH5 is definatley stronger in this area.'
I am a basshead, I listen to music from genres such as RnB, Rap, Electronic etc. Those that say the FH7 has plentiful bass are in opposition to the findings on these tests, and may have never heard what plentiful bass sounds like.
There is a few tracks I enjoy listening to that have deep bass riffs in them and it is barely noticeable on the FH7. I tried my FH5 and it was clear as day!
Until I started appreciating dynamic range, and vocal purity, and understood the differences between bass quantity and quality. I started listening for bass bleeding into mids, and that became an instant turn off. I eschewed thick for linear bass, and paid attention to how the bass melded with the mids and balanced with the highs.
The FH5 was (and still is) about as good as it gets in terms of quality sub-bass, but the FH7 - graphs be damned - betters it still. Not in quantity, mind you, but in quality. It uses the extra size and speed of its driver to convey bass instruments and sounds far more realistically than the FH5. The bass may not be louder, but it’s bigger, more nuanced, more controlled, more textured, more subtle and refined.
Granted none of this might be important to you in the genres you listen to, but for what I listen to it’s probably - I daresay - better bass than any of my other headphones. And if you take a glance at my sig, you’ll appreciate I don’t make that statement lightly.
PS. My tips of choice: JVC Spiral Dot M. Perfect seal, perfect fit, perfect bass.
PPS. If you want balls-to-the-wall bass in an IEM for about the same price as the FH7, grab a pair of IMR R1 Zenith. Far from the most refined sound you’ll hear, but heck for big, busty, bold bass, I haven’t heard an IEM (or headphone) that touches it.