Put a 1/4 inch thick piece of wadding along the back of the speaker cabinet and up to the top edge at the front where the tweeter is and now everything is deeper and airier. No Brashness to the tweeter. Did a sweep and was much better around 6-8 kHz. Flatter and better response. A little bit of wadding has taken the edge off. Dispersion in the cabinet is much better Phase wise,
Totem sky tower owners - how do your mass loading ports behave?
Hello, I took a long hiatus from the forum but I remembered after finding another thread here for another search about NAD vs Cambridge Audio that I have an account here!
As such I thought it would be a good way to increase my sample size of totem owners, specifically totem sky tower owners if possible to post in multiple places. You see to make a long story short I own a couple different pairs of totem sky towers (for a full range 5.1 system :D) and recently through some observational testing I noticed a peculiar difference between my first, older pair of towers and my newer pair of totem sky towers.
First pair has serial numbers around the 01400s (so 1400 ish units produced) and they do not exhibit any pressurization or excitement of the mass loading port at moderate volumes. I haven’t really made observations at different volume levels but I feel that having a difference at any volume level is reason enough to be curious. To be clear I have not added any material for mass loading and have not covered the ports, but I feel no air with my hands, and placing a thin piece of torn receipt paper over the port doesn’t really show any movement or cause vibration.
Second pair has serial numbers almost exactly 1000 units later at 02400s and they DO exhibit a pressurized mass loading port. Placing my hand there it’s easy to feel the air moving. Placing the thin piece of receipt paper there makes it even more obvious as the paper vibrates considerably. I believe it is a vacuum pressure, that it is sucking in air although it might be doing both sucking and pulling along with the movement of the cone.
I would very much appreciate any totem tower owners, especially totem sky tower owners to simply observe the air movement around your mass loading ports and report back your findings. Be sure to include your APPROXIMATE serial numbers. DO NOT GIVE THE ENTIRE ACCURATE SERIAL NUMBER. I’m not sure if that would be enough for someone to steal your warranty or anything but let’s not take chances. The serial numbers could help us narrow down time where changes might have been made to the construction though so please ball park them.
Thanks for any replies and interest. Happy Holidays.
As such I thought it would be a good way to increase my sample size of totem owners, specifically totem sky tower owners if possible to post in multiple places. You see to make a long story short I own a couple different pairs of totem sky towers (for a full range 5.1 system :D) and recently through some observational testing I noticed a peculiar difference between my first, older pair of towers and my newer pair of totem sky towers.
First pair has serial numbers around the 01400s (so 1400 ish units produced) and they do not exhibit any pressurization or excitement of the mass loading port at moderate volumes. I haven’t really made observations at different volume levels but I feel that having a difference at any volume level is reason enough to be curious. To be clear I have not added any material for mass loading and have not covered the ports, but I feel no air with my hands, and placing a thin piece of torn receipt paper over the port doesn’t really show any movement or cause vibration.
Second pair has serial numbers almost exactly 1000 units later at 02400s and they DO exhibit a pressurized mass loading port. Placing my hand there it’s easy to feel the air moving. Placing the thin piece of receipt paper there makes it even more obvious as the paper vibrates considerably. I believe it is a vacuum pressure, that it is sucking in air although it might be doing both sucking and pulling along with the movement of the cone.
I would very much appreciate any totem tower owners, especially totem sky tower owners to simply observe the air movement around your mass loading ports and report back your findings. Be sure to include your APPROXIMATE serial numbers. DO NOT GIVE THE ENTIRE ACCURATE SERIAL NUMBER. I’m not sure if that would be enough for someone to steal your warranty or anything but let’s not take chances. The serial numbers could help us narrow down time where changes might have been made to the construction though so please ball park them.
Thanks for any replies and interest. Happy Holidays.
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