Hello, I just joined, primarily for the audiophile products. Looking at purchasing the NHT C3 speakers for our new living room. Space is about 15 feet wide by 33 long and they will fire long ways. Space is just for general listening, music room with all equipment is downstairs, so hoping they will fill it with sound nicely. Cheers.
Mar 18, 2024
Not sure what you mean by bass improvement. You may need to be more specific as to what kind of improvement you are looking for. Do you want the bass to be louder overall? More subbass? Midbass? Better quality bass?
If you like most of the he350 sound and you don't want to spend so much more money, a few mods might be able to make the he350 sound more like what you want. Toilet paper is great for reducing treble. Just remove the pads on the 350, add a circle of 1-2ply, put the pads back on over top. That by itself should reduce the treble by a few decibels and smooth out the Peaks, but you can add more or less to preference. You can always experiment with other materials that will do the job, but toilet paper is cheap and proven effective.
As for the he350 bass? Do they use the all velour pads? Velour pads leak out bass, if you want more bass and comfort without affecting the rest of the sound too much try switching to the hifiman focus-a pads. Also wrapping the outside of the velour pads with electric tape can also help with the bass though not as well and comfort may suffer depending on how you apply the tape.
Or... If you don't care for modding, the hd650 is also a good bet. Just keep in mind that while they have a more than neutral midbass and much smoother treble, they are still neutral toned overall, and so will not have boosted subbass if that is what you are looking for. Maybe try the Fidelio x2 or bass modded k7xx. It all just depends on what sound you are looking for.
And if you love HE350, you may find HD650 boring as it is so smooth. I listen to jazz, metal, and pop, and I love how HD650 presents vocals, and the imaging of different sounds in live records. However, I sometimes found HD650 presenting instrumental jazz in a smooth manner - so smooth that it is a bit unexciting / laid-back.
Some alternative deep bass open headphones would be the he560 or k7xx(bass mod).
I have found the bass of HE350 (with "bass mod") more present. HD650's bass is more subtle (maybe it is what @SeT9 said about "tight"?)