by alldaz » Sun Oct 09, 2005 6:40 am
I have two Kole Audio KMMX-15''s in a custom box. Kole Audio suggest that I should tune the box to 40 Hz. Suggestions include to have two ports, per driver, at 11'' with a diameter of 4''. Which would mean I need four ports, but I only have two.
Right now, the box is 6 cu ft, and the subs are in one chamber. The port diameter is 4'' right now and the port length is 11'', but I only have two ports in all instead of four(the suggested number from Kole Audio). Right now I calculated that my box is tuned to about 29 Hz.
Am I hurting my subs by having it tuned so much lower than the suggested tuning of 40Hz? I tested the box by putting two ports that were 6.25'' (35Hz) in and I didn't like the output. The punchy beats were somewhat better but I lost soo much of my low end bass, and I listen to mostly rap, Three 6 Mafia with low deep bass.
Last Question..lol. I used a port calculator, and I found out that I could simply tune my box to 40Hz by making the port lengths 4'' with my existing two ports. What are the advantages of drillng two more holes in the box and added two more ports so I would have the suggested number of ports for my drivers. Basically im asking why have four ports at 11 inches that makes 40Hz, when I could just have two ports at 4 inches that makes 40Hz also.
Thanks in advance
I have two Kole Audio KMMX-15''s in a custom box. Kole Audio suggest that I should tune the box to 40 Hz. Suggestions include to have two ports, per driver, at 11'' with a diameter of 4''. Which would mean I need four ports, but I only have two.
Right now, the box is 6 cu ft, and the subs are in one chamber. The port diameter is 4'' right now and the port length is 11'', but I only have two ports in all instead of four(the suggested number from Kole Audio). Right now I calculated that my box is tuned to about 29 Hz.
Am I hurting my subs by having it tuned so much lower than the suggested tuning of 40Hz? I tested the box by putting two ports that were 6.25'' (35Hz) in and I didn't like the output. The punchy beats were somewhat better but I lost soo much of my low end bass, and I listen to mostly rap, Three 6 Mafia with low deep bass.
Last Question..lol. I used a port calculator, and I found out that I could simply tune my box to 40Hz by making the port lengths 4'' with my existing two ports. What are the advantages of drillng two more holes in the box and added two more ports so I would have the suggested number of ports for my drivers. Basically im asking why have four ports at 11 inches that makes 40Hz, when I could just have two ports at 4 inches that makes 40Hz also.
Thanks in advance