Hi guys,
I am a total newbie when it comes to speakers. I just got into it after my grandpa passed away and I got their stereo receiver. The stereo receiver can take 4 speakers, 2 channels A + B, with the minimum of 12 ohms per speaker if channels A + B are going. If it is A OR B, 2 speakers, the speakers are a minimum of 6 ohms each. These speakers are running in parallel, so the stereo system can handle a minimum of 3 ohm total. Stereo receiver is a Yamaha RX-395, where the manual says 45W + 45W RMS output power. For some reason, I want to have 4 speakers (really only using for my TV, like video games, and music, nothing crazy), so I started doing more research and looking on Facebook market if I could find some 12 ohm speakers. No luck. I looked into wiring and discovered I could wire 2 6 ohm speakers in series to make a 12 ohm box. That is when I took on creating my own speaker boxes. I have decided to make 4 speaker boxes, with 2 6 ohm speakers in each box, wired in series.
I watched some YouTube videos and decided to go with a full-range driver. I got 8 Dynavox LY401F 4" Full-Range Driver which is 6 ohms and has a decent frequency response. I started researching on designing a box after the drivers arrived and from a calculation I made, it appears I would need a ported box for more base. From this site, Speaker Box Enclosure Designer / Calculator, it is saying I need 1" diameter and 4.76in in length. These calculations are based on 1 speaker in a box, I plan on doubling everything (so two ports for one box). Wanted to check if that is accurate or not in the first place? Secondly, based on what I have looked at, I would like this port, Speaker Cabinet Port Tube 1" ID x 4" L Flared, but it is only 4 inches long. There is this other one, Speaker Cabinet Port Tube 1-1/8" ID x 6-1/2" L Flared, but it has a larger diameter. Which one would you get? I want the shorter one in length, but I am not sure, which measurement is more important?
I may be overkilling it with 4 speakers, but I am having fun with it, and that is all that matters. Curious what tips, tricks, and suggestions you guys have. Thanks for reading and helping!
I am a total newbie when it comes to speakers. I just got into it after my grandpa passed away and I got their stereo receiver. The stereo receiver can take 4 speakers, 2 channels A + B, with the minimum of 12 ohms per speaker if channels A + B are going. If it is A OR B, 2 speakers, the speakers are a minimum of 6 ohms each. These speakers are running in parallel, so the stereo system can handle a minimum of 3 ohm total. Stereo receiver is a Yamaha RX-395, where the manual says 45W + 45W RMS output power. For some reason, I want to have 4 speakers (really only using for my TV, like video games, and music, nothing crazy), so I started doing more research and looking on Facebook market if I could find some 12 ohm speakers. No luck. I looked into wiring and discovered I could wire 2 6 ohm speakers in series to make a 12 ohm box. That is when I took on creating my own speaker boxes. I have decided to make 4 speaker boxes, with 2 6 ohm speakers in each box, wired in series.
I watched some YouTube videos and decided to go with a full-range driver. I got 8 Dynavox LY401F 4" Full-Range Driver which is 6 ohms and has a decent frequency response. I started researching on designing a box after the drivers arrived and from a calculation I made, it appears I would need a ported box for more base. From this site, Speaker Box Enclosure Designer / Calculator, it is saying I need 1" diameter and 4.76in in length. These calculations are based on 1 speaker in a box, I plan on doubling everything (so two ports for one box). Wanted to check if that is accurate or not in the first place? Secondly, based on what I have looked at, I would like this port, Speaker Cabinet Port Tube 1" ID x 4" L Flared, but it is only 4 inches long. There is this other one, Speaker Cabinet Port Tube 1-1/8" ID x 6-1/2" L Flared, but it has a larger diameter. Which one would you get? I want the shorter one in length, but I am not sure, which measurement is more important?
I may be overkilling it with 4 speakers, but I am having fun with it, and that is all that matters. Curious what tips, tricks, and suggestions you guys have. Thanks for reading and helping!
That is correct, if you 2x the volume, 2x the driver, you should 2x the number of ports of the same length, to achieve the same tuning.
A larger port diameter (associated with a shorter length) is best. Too small a port diameter can cause 'chuffing' noises due to air turbulance in the port at high sound levels.
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I suggest that you revisit your calculator and recalculate for a port of larger diameter.
You certainly shouldn't use the 1" x 4" port as it is too short according to your calculations.
You certainly shouldn't use the 1" x 4" port as it is too short according to your calculations.