# How to measure slot port length

Slot port calculation - ecoustics.com h = height of slot port w = width of slot port d = diameter of equivalent round port so to compute the "diameter" of the port as a function of the slot height and width i would use: (using the + obviously) This makes sense to me because given any port length L, the total volume of the port will be the same. Circle Port to Slotted Port Calculator - Do-it-yourself ...

Slot port measuring question - Techtalk Speaker Building ... Re: Slot port measuring question Your diagram is right for length, but you also need to control width, height and end effects. Where does the 1.5x9x18 come from? The w/h ratio is good, but using a box wall as part of the mouth increases effective length by 1/2 the short dimension. Calculating Slot Port length - Advanced Discussion - SSA ... When calculating port length, let's say it says to use 26" long and you are, for example, using 12.56sq in of port which is for a 4" diameter port. Radius is 2" I thought to calculate slot port length was to take the 26" depth and subtract from that the sqin radius by converting the sqin value to a circle then finding the radius, which in this ...

## Calculating Port Size | Depth and Port Area Formulas | SoundQubed

Port length Calculator for sub woofer box design. How-to-guides.This calculator will determine what length port to use in your ported enclosure. Select whether you are using a round or slotted port for you box design. How do I measure my port length??? - ecoustics.com |… so do i measure the port in the inside of the curve of the outside???I know with a straight slotted port, the effective port length is measured right down the middle, i think it would be the same for a curved port. How to measure port length? - Techtalk Speaker Building,…

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Enclosure & Port Selection, Definitive Guide - Decibelcar.com Enclosure & Port Selection, Definitive Guide ... Tuning is a function of box size, port size & port length. ... What’s a slot port? A square port which uses a wall of the enclosure as part of port. This makes the enclosure stronger (it acts as a brace) and also makes the port shorter. Check in my enclosure building tutorial for a link to a ...

### Slot port with right angle bend, length? - the12volt.com

Dv = port diameter (cm) Fb = tuning frequency (Hz) Vb = net volume (litres) Lv = length of each port (cm) Np = number of ports k = end correction (normally 0.732) The value for k, the end correction, can be fine-tuned by using the following values to derive the appropriate end correction figure for each end of the port, then adding them together slot port length? - Car Audio - diymobileaudio.com With slot ports that have bends it is easiest to measure in the middle of it to get the correct length. This is the average of the outside and inside port length. It is hard to see that the last 90 degree bend is adding another 5" of port length and i highly doubt it is... Enclosure & Port Selection, Definitive Guide - Decibelcar.com

## Types Of Ports - Vented vs Slot Port vs Aero Port vs Kerf Port - Duration: 17:55. ... Measuring Port Length in Speaker Building - Duration: 9:17. 123Toid 10,292 views. 9:17.

Slot / Duct Ports Ducts are often used when a particular alignment calls for an outrageously long port to be squeezed in a very tiny enclosure due to a very low tuning.Below is a perspective view of a typical duct port along with a few helpful tips on how to get the best results from your duct. Slot Port Length Calculator To calculate the port length of a slot port, enter the width and height of the port, the box volume (Vb) in cubic feet, and the desired tuning frequency (Fb).Measure the outside dimensions of your enclosure and the material thickness, then enter the numbers below to calculate interior volume. * Calculate port length w/ bend | Audioholics Home Theater… How is a port tube's length calculated if you need to put a 90 degree bend in it to keep it all in the box?Calculate port length w/ bend. Hide sidebar Show sidebar.One must measure from the center of the port. Don't forget your end correction factor.

L-Slot Vent Bass Reflex Enclosure Calculator - DB DYNAMIX ... Overview: This is a calculator for designing a L-Slot Vent Bass Reflex Enclosure. The formulas used in the calculator create a design that suggests the most maximally flat response in an anechoic environment based on the number of drivers, the thiele small parameters and the allotted dimensions specified in the user’s input fields. Vent tuning of ported systems - Troels Gravesen