If confirm fake tweeter, can go sue ah? Sue & bring whole SG down. That brand really don't deserve to exist...

They are most likely deaf from the beginning

z-5500 is fine.

Just stay away from z-4 ; )

- Logitech Z-623 board... Opened it recently for capacitor upgrades.
- The glue used is pretty hardened even after I opened it after a few hours of blasting. Hope they don't cause trouble in the future.
- It wasn't egg-cooking hot in there, just luke-warm.
- All connections were secured with glue and wrapped with some kind of sponge to reduce vibrations.
- Capacitors are all TEAPO rated @ 105'C. They are average capacitors from my research, slightly better than other generic or low cost brands.
- Board designed / manufactured by Audera Acoustics. PCB seems to be of professional quality. Quite hard to desolder parts at times.
- Power supply, DSP, amp in a single board. Not sure how that does for audio though. I know nuts about electronics
- Separate I/O board.
- No stuffing or damping in the woofer enclosure, plan to add some later. Hmm polyfill in middle or wool around the 'walls'?
- All in all, good build & reasonable workmanship in a world of competitive cost savings.

SQ after mods





This post has been edited by andrew9292: Nov 16 2014, 01:31 AM