different type of slots,ports and cards- authorSTREAM… Expansion Ports Housed on the expansion card and is accessible through a hole in the back of the computer.Expansion Ports Have different types of connectors. Male connectors: Have one or more pins sticking out . Female connectors: Have holes to accept the pins on the male connector. My essay on Thunderbolt ports vs PCIe Slots | MacRumors… Thunderbolt port expansion boxes with firewire/usb hubs like those from Matrox are expensive and buggy. All devices disconnect on sleep and don't come back onThat brings me to Thunderbolt... What is it really? From a Mac Pro or PC perspective, it's just a PCIe x4 slot turned into a port.
Hi there, I am also a velodyne owner and I do know the reason that they have a slot port. It is so that all of the air displacement is directed at the listener as opposed to tube ported designs that have the port at an opposing angle to the sub therefore directing the sound waves away from the listener.
He also suggests that flares for slot ports can be done quite easily with an angle grinder and some sandpaper. There is a discussion comparing round ports vs slot ports at AVSForum where Mark Seaton suggests a 3:1 ratio; If using a slot port as part of the enclosure wall, the port appears longer. Convert round to slot ports - Techtalk Speaker Building ... Re: Convert round to slot ports It's gonna be a long, shallow box, but I havn't had a chance to figure some dimentions yet. It would probabl be better to figure for a 3 or 4 inch square port, to reduce port length. Aero Ports vs. slots - Page 2 - Realm of Excursion
Re: Convert round to slot ports It's gonna be a long, shallow box, but I havn't had a chance to figure some dimentions yet. It would probabl be better to figure for a 3 or 4 inch square port, to reduce port length.
There are both good and bad aspects of slotted ports. When the aspect ratio gets greater than about 3:1 you have to start "de-rating" the effective area slightly. i.e. the square area of a long narrow slot is effectively a little smaller than a single round port of the same open area. Slot port enclosures: successes and failures, please post ... As well on the slot port on the inside radius the slot port board.f you can add in a full radius around the board you use for a slot port. Personally I use a sharp punch and yes dimple the radius on the inside of all my slot ports.As well I line the slot port board with a peel stick floor tile for vibration control.
Square and Round ports are the best you can use, the further off your ratio of a Rectangular port, the more likely for port noise, and the more the tuning is going to be off from what the port calculators calculate (considering there is more square inches of port wall given a set amount of port area in a rectangular with a ratio of 1:9 than a square of 1:1, thats more drag on the air due to ...
SLOT PORTS OR ROUND PORTS .... which is better ...? - diyAudio If port air velocity is fairly high then a slot port is preferable as port noise will be distributed over a large number of frequencies instead of one frequency as with a round port. Correctly made slot ports will always be preferable to round ports. 13th August 2011, 11:31 AM ... Slot port vs. round port aero - ecoustics.com Oh yeah, and for the comment that tuning a slot port is easier, They are both easy to deturmine, You go to the correct port calculator and enter your deminsions, CuFt, tunning frequency, etc. and "boom" it tells you how long to make the port. Slot uses more wood and time to cut and assemble than flared ports!!!! Is there any difference in sound on Round vs Slot port ... A round port has the lowest surface area (perimeter) per given port area. For a slot port, the more equal the sides (a square being optimal) the lower the wall surface area. A 3" x 8" port has a perimeter of 22". A 1" x 24" port has the same area, but a perimeter of 50".
Port Length Calculator - mobileinformationlabs.com
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If port air velocity is fairly high then a slot port is preferable as port noise will be distributed over a large number of frequencies instead of one frequency as with a round port. Correctly made slot ports will always be preferable to round ports. 13th August 2011, 11:31 AM ... Slot port vs. round port aero - ecoustics.com Oh yeah, and for the comment that tuning a slot port is easier, They are both easy to deturmine, You go to the correct port calculator and enter your deminsions, CuFt, tunning frequency, etc. and "boom" it tells you how long to make the port. Slot uses more wood and time to cut and assemble than flared ports!!!!