Got my mini DSP today not sure what filter type to use....

[cameron paterson]

I would never run my mains full range. Always set them at 80Hz same as the center and surrounds

 

[lovinthehd]

The majority of the topics you are posting down here in DIY, are not really DIY topics. How to work consumer gear would be more suited to "Beginners and Audiophytes."

If you had built your mini DSP, that would be one thing. "Building & repairing pro/consumer audio, DIY tips & techniques, board modifications, and more!"

Nonsense. He's in the right subforum. Built your minidsp? Good grief.

 

[MrBoat]

Nonsense. He's in the right subforum. Built your minidsp? Good grief.

I didn't know he built a sub. I answered to that effect on the previous page. It seemed out of place. It really wasn't that big of a deal. Post away.

 

[lovinthehd]

I didn't know he built a sub. I answered to that effect on the previous page. It seemed out of place. It really wasn't that big of a deal. Post away.

No worries. He didn't exactly build the sub otoh I just thought your reaction a bit overboard

 

[MrBoat]

No worries. He didn't exactly build the sub otoh I just thought your reaction a bit overboard

I didn't mean it to be overboard so I apologize if it seemed so. It's the text thing. I open DIY to look for new projects outside of the usual consumer gear and questions. I just thought he would get more answers to his questions up in the top. That's usually where I have seen people talking about mini DSP?

 

[everettT]

A sealed enclosure with this sub will never have as powerful bass as my ported box with my 2500 watts!

Look at the response in a sealed enclosure with no eq boost. Very impressive, and note th he 130bd sweep produces unheard of thd numbers at 20hz. The driver will take a massive amount of power, so eqing isnt an issue.
https://data-bass.com/data?page=system&id=3&mset=35
I'm pretty sure someone has posted this for you before...

 

[cameron paterson]

Ski2xblack sorry I forgot your name. But excuse my manners I should have said hi. Yes you're right about me blowing my speakers if they were set to large! lol

EverettT if you looked at my numbers they blow away the sealed numbers you posted. I ran my sub in the box I have 7.3ft3 tuned at 20Hz and just modeled it. This is without room gain since I don't have a microphone. At 15Hz I had 111hz, at 20Hz I had 119hz and at 30Hz I had 121Hz. With room gain those numbers would be much higher. My ported box has far more output than that sealed model. I am running it with a 2500 watt Crown XLS 2500 amp.

 

[everettT]

Ski2xblack sorry I forgot your name. But excuse my manners I should have said hi. Yes you're right about me blowing my speakers if they were set to large! lol

EverettT if you looked at my numbers they blow away the sealed numbers you posted. I ran my sub in the box I have 7.3ft3 tuned at 20Hz and just modeled it. This is without room gain since I don't have a microphone. At 15Hz I had 111hz, at 20Hz I had 119hz and at 30Hz I had 121Hz. With room gain those numbers would be much higher. My ported box has far more output than that sealed model. I am running it with a 2500 watt Crown XLS 2500 amp.

The numbers in databass have zero eq, albeit with a very stout powesoft amp. Add eq and room gain with a slightly larger amp than yours; your sub as built wouldn't blow it away. As for your numbers, untill you actually measure the sub in your room, we can't possibly know what's really going on.

 

[cameron paterson]

I am not going to measure it in my room because the mic costs too much for me to justify a reading that is only to prove my box is superior to a sealed version. Ported is always louder than sealed with any subwoofer if the box is built right!

 

[everettT]

I am not going to measure it in my room because the mic costs too much for me to justify a reading that is only to prove my box is superior to a sealed version. Ported is always louder than sealed with any subwoofer if the box is built right!

The measurements are not to prove your box is better but to show you what's going on in your room, which allows you to address any issues. The mic is $100, rew is free, and the info is priceless

 

[cameron paterson]

I don't believe in eq'ing a room. I think the room determines how the sound is going to be. I have a great room its a basement thats 23' x 12' x 8' and only 1 door going into a hallway

 

[everettT]

I don't believe in eq'ing a room. I think the room determines how the sound is going to be. I have a great room its a basement thats 23' x 12' x 8' and only 1 door going into a hallway

Measurements are not only about determining the need for EQ. Understanding what your sub is doing in your room is important. Only trying to help you get the most out of your system, if your convinced that your all good, I'll leave at enjoy..

 

[TLS Guy]

TLS, I've been to Cameron's house, know his taste and preferred volume levels. If he runs his mains full range he'll likely destroy them. He should definitely use a hpf for them.

Good to know

 

[highfigh]

Its Fs is 20Hz! And its super loud at 20hz with no subsonic filter! You're wrong its tuned fine at 20hz trust me come have a listen! I put it in a 4ft3 box sealed and produces much deeper and louder sound with my ported box. Don't be jealous that you cant find my subwoofer anywhere anymore. Best subwoofer in the world tuned @ 20hz with 2500 Crown amp watts powering it!

Fs is the resonant frequency, not the tuning frequency.

 

[highfigh]

I don't believe in eq'ing a room. I think the room determines how the sound is going to be. I have a great room its a basement thats 23' x 12' x 8' and only 1 door going into a hallway

If you think that using a DSP to make the system perform a certain way isn't a form of equalization, you're wrong.

Equalizers were designed to cure problems that can't be dealt with in other ways. Whatever you listen to, unless it was recorded by you with no processing, HAS BEEN equalized. ANY live music event you go to, WILL BE equalized.

You say your room is great, but I see that the dimensions will cause problems. You WILL hear and see the effects of this in the area of 48Hz-52Hz. Also, unless that door seals the room and separates it from the hallway, the room WILL interact with the hallway.

 

[cameron paterson]

The door does seal the room. Would a movie be better with the door shut?

How would I go about using a mic? Do you set it a meter away from the sub to test SPL. And when testing in room frequencies do I set the mic at the same position I used my mic for my AVR? Which is my used seating position...

 

[everettT]

REW
https://www.roomeqwizard.com
Use hdmi as the hook up read them manual to learn how to use it..

 

[cameron paterson]

That's just crazy I don't want to go thru all that. My setup sounds great.

 

[cameron paterson]

I will get a phone app and test SPL.

 

[everettT]

That's just crazy I don't want to go thru all that. My setup sounds great.

But does it? May sound awesome to you, but tweaked who knows. It's not hard at all to use rew software, easier than when I used it first about a decade ago. If you want the most out of a setup, reading is a requirement