Dear @daveyonthecoast : Your Zu speakers in reality can't gives you or handled the bass range you are looking for. In reality its works as a small monitor speaker and the manufacturer specs confirm it:
" Bandwidth: 45 – 22 kHz " no one could ask for bass true bass with your speaker, it's a design limitation in its price market price.
I never heard that Zu model but I can think that over 80hz could be a good performer.
What your Zu speakers need is to add/integrates a pair of self powered subs system wired in true stereo fashion. You don't need anything else as could be to buy new speakers.
Look for subs that comes with high-pass filter because you will need it.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
" Bandwidth: 45 – 22 kHz " no one could ask for bass true bass with your speaker, it's a design limitation in its price market price.
I never heard that Zu model but I can think that over 80hz could be a good performer.
What your Zu speakers need is to add/integrates a pair of self powered subs system wired in true stereo fashion. You don't need anything else as could be to buy new speakers.
Look for subs that comes with high-pass filter because you will need it.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.