WebMay 16, 2024 · Two 4" vents is only 25 sq.in, and one 6" vent is 28 sq.in. Compared to the Sd of a 15" driver at 136 sq. in, the port velocity is pretty high. If you are planning on pushing the driver to the Xmax limit, it requires more vent area to avoid chuffing. Some oddball drivers, such as Delta 10s, have a tiny Xmax of 3.5mm, but a large Xlim of 9.4mm. WebFeb 8, 2024 · The location and the speed of the Gulf Stream can vary a fair amount. When …
Sub port - will it chuff - diyAudio
WebAug 5, 2012 · If you keep it under 40 watts, you'll be fine with a 2" straight port. Above 50 watts puts you in chuffing territory. Just to give you an idea, at 30 watts, the Usher puts out around 102db SPL. That's plenty loud but you're still under 30m/s vent velocity at that volume. 30m/s is too high a limit. WebApr 18, 2024 · I don't understand port design particularly well but it does seem that most of the goals seem to be reducing chuffing/turbulence (which is what flaring the ends does by reducing velocity through the port) vs reducing resonances (which admittedly I don't quite understand how to resolve beyond "stuff the port with polyfill"). how good is alexis lafreniere
Klipsch slot port design - Home Theater - The Klipsch Audio …
WebJul 15, 2024 · A flare is a pyrotechnic type of Visual Distress Signal (VDS), and all boaters … WebJun 20, 2006 · Im planning on making 6" Flared ports. My question is what is an optimal curve for air flowing at a maximum of 80ft/sec. Im not looking for quiet ports, im looking for maximum efficency. I would assume a parobalic curve. WebJan 15, 2002 · These generally broad-band "chuffing" noises due to fast moving air have been dealt with (since the late 1970s; see [2]) by rounding the port ends with various radii, which led to the now common flared port. ... (Fig. 11), describes radiused ports with a plunger on the exit that smoothly directs the port velocity 90 in all directions to the ... how good is amaterasu umvc3