Hey guys! i recently decided to build a new trunk enclosure for my 2 " Pioneer TS-W304R" powered by my brand new "AudioControl EPIC1000" amp and decided to use WinISD to try and get the most out of my enclosure before i go through all the work to build it, ill attach the screenshots below. i watched a few videos on how to use WinISD but im not quite sure on how to optimize it. thanks guys! let me know if you need any more info, im very beginner, any advice helps!
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What's lacking with your current enclosure?
What do you hope to improve?
Optimization would likely require definitive information. You can find the transfer function of the vehicle if you have an RTA. Measure the enclosure response in a wide open area, ideally outdoors facing away from any walls. Then place it in the vehicle and measure again. The difference is the vehicle transfer function.
Is this supposed to be the enclosure listed at the bottom of the page?
Including the transfer function of the vehicle?
What do you hope to improve?
Optimization would likely require definitive information. You can find the transfer function of the vehicle if you have an RTA. Measure the enclosure response in a wide open area, ideally outdoors facing away from any walls. Then place it in the vehicle and measure again. The difference is the vehicle transfer function.
Is this supposed to be the enclosure listed at the bottom of the page?
Including the transfer function of the vehicle?
thanks for responding! my previous enclosure was really cheap and crappy homemade, it vibrated alot, and only held one sub, i hope to be able to build a box with a port that will hold both my 12" subs. im hoping the better box will reduce vibration and sound louder/deeper with the port.
i dont have access to an RTA. i was using WinISD to see if the enclosure i designed would sound good, so i havent actully built it yet (sorry, should have clarified) . the last image of my original post are the specs for the port inside the box.
so i guess what im asking is if my port and box volume work well with the tuning or if i should tune it differently or change other parameters to get a better sound. the design im intending to follow is this free one i found on the internet, this is the basic sketch.
i dont have access to an RTA. i was using WinISD to see if the enclosure i designed would sound good, so i havent actully built it yet (sorry, should have clarified) . the last image of my original post are the specs for the port inside the box.
so i guess what im asking is if my port and box volume work well with the tuning or if i should tune it differently or change other parameters to get a better sound. the design im intending to follow is this free one i found on the internet, this is the basic sketch.
You ought to show the impedance since it may help us see what you’ve done.
Your box and tuning is far from typical for a freestanding enclosure and wouldn’t ordinarily be entertained… that is unless you could justify it in combination with the in car response.
Not only that, but you might find opportunities to make it smaller.
Your box and tuning is far from typical for a freestanding enclosure and wouldn’t ordinarily be entertained… that is unless you could justify it in combination with the in car response.
Not only that, but you might find opportunities to make it smaller.
Have you thought about using the enclosure recommended by Pioneer in the owner's manual?
I don't know how good the microphone is in your cell phone but there are many RTA apps for a cell phone. Even if the mic isn't good, it will be the same for both the reference and in-car response so it may be of some use.
A ported enclosure can hit slightly higher numbers but the difference isn't necessarily audible.
I don't know how good the microphone is in your cell phone but there are many RTA apps for a cell phone. Even if the mic isn't good, it will be the same for both the reference and in-car response so it may be of some use.
A ported enclosure can hit slightly higher numbers but the difference isn't necessarily audible.
i plan to wire it down to 2 ohm's the subs themselves are 4ohms each, is that what you mean?
The manual only recommends a particular air volume, not a specific design. Since the recommended air volume is 1.5 Ft3, does that mean 3 Ft3 for 2 subs? Should I size down my enclosure a lot?
The enclosure shape can make a difference but unless extreme (flat truck box), it's not going to make much of a difference.
The large enclosure will change the response and for a home speaker system, it can help but in a car, the transfer function has so much low-frequency boost, larger enclosures are not needed. Larger can/will reduce power handling if the speaker is pushed to its limits.
Have you tried forums that are specifically for your vehicle to see what they found worked better/best?
People get too tied up in the fine details. If you build a good enclosure (similar to the size recommended by the manufacturer) using good quality woofers and good power, it would be hard to tell the difference if you spent weeks trying to figure out what may be best.
Yes, you have to have the recommended volume for two speaker if you have a single chamber. I'd suggest two chambers because the divider will add bracing, especially in a sealed enclosure. For ported, using a single chamber (well braced) can be a benefit because the ports won't have to be as long. Again tradeoffs. A port for two woofers may have to be a larger diameter to prevent noise from the port due to the velocity of the air at high power. That said, you'll never hear it unless the enclosure is in the passenger compartment and possibly not even then unless it's severe.
The large enclosure will change the response and for a home speaker system, it can help but in a car, the transfer function has so much low-frequency boost, larger enclosures are not needed. Larger can/will reduce power handling if the speaker is pushed to its limits.
Have you tried forums that are specifically for your vehicle to see what they found worked better/best?
People get too tied up in the fine details. If you build a good enclosure (similar to the size recommended by the manufacturer) using good quality woofers and good power, it would be hard to tell the difference if you spent weeks trying to figure out what may be best.
Yes, you have to have the recommended volume for two speaker if you have a single chamber. I'd suggest two chambers because the divider will add bracing, especially in a sealed enclosure. For ported, using a single chamber (well braced) can be a benefit because the ports won't have to be as long. Again tradeoffs. A port for two woofers may have to be a larger diameter to prevent noise from the port due to the velocity of the air at high power. That said, you'll never hear it unless the enclosure is in the passenger compartment and possibly not even then unless it's severe.
You don't appear to be watching the impedance peaks when tuning. This is clear seeing the large response peak with the flat partial rolloff between 20-40Hz. If you are going to use a port you ought to get value for it.
okay, got it. i am very beginner so ive got no clue how to do that, sorry. could you explain?