Subsonic filter diy install#
Subsonic filter diy full#

The results were just about what I expected. I still need to finish them, but I’m waiting for a warmer day. They were originally tuned to 19hz’with ~4 cubic ft volume, but after adding r15 insulation to all the walls (with a thin cloth over it) the tuning was 16-17hz. I built two 24x20x22″ (LxWxH) boxes for them with 1.5×17.5″ (with bracing) 42-45′ long slot ports. I decided that the high inductance and steel basket weren’t bad enough for me to spend another $120 per sub. So I was about to get a pair of sql15s when these dropped onto parts express. This can be built right into the subwoofer. This is not enclosed, so I would recommend a separate sealed enclosure for this. So do not expect much more out of it that the 500w even during short bursts. It has not tested as well as the Dayton Audio AB amplifiers when it comes to dynamic power.

It is probably my favorite plate amplifier. This would be for someone that really wants the best sound out of their subwoofer and has a decent calibrated microphone to set it up.

Subsonic filter diy install#

You can install limiters, phasing and eq. This will allow you to pick your subsonic filter, dsp your room modes out using a laptop with usb. SPA500DSP – This is a class D amplifier with built in DSP. It is also sealed, but I would still recommend a separate amplifier compartment. This does have a 20hz 2nd order dedicated high pass as well. This is a cheaper option, but there are less expensive and maybe even better amplifiers out there for the price. It also has a very limited parametric EQ, but might help out if you have a huge peak due to a room mode. This would only give your subwoofer 500w of power and more dynamically. SPA500 – This is another Class ab amplifier, which some people prefer. It also is a sealed amplifier, so you wouldn’t have to create a separate amplifier compartment in the box.

Subsonic filter diy full#

But it does have really good dynamic power and will help your subwoofer see it’s full potential and has a 20hz 2nd order dedicated high pass. It is twice the cost of one subwoofer and will only work for this subwoofer. SPA1000 – This would be the most powerful plate amplifier that would get you the most SPL out of the MC15-22 right out of the box. There are a lot of pros and cons to each amplifier. The amplifiers are going to be the most expensive part of this build. Why is this so important? Most home theater plate amplifiers have a 2nd order high pass on them centered at 20hz. But if you were concerned, you could increase that to a 4th order. And with a rear firing port, I don’t think this would be an issue at all. By just using a second order centered at 20hz, all your excursion problems go away and your port velocity doesn’t go over 17m/s except between 17-25hz. Most of the perceived problems will go away with a simple high pass/subsonic filter on the subwoofer. But I think we can get this down a little more. Some people might be okay with this, as the amount of sound there is negligible. This is using a slot port of 15″ wide by 2″ tall and 30″ deep. Port Velocity below 26hz does go over out target of 17 m/s and has a first port resonance of 226hz. With 800w, it does have an issue with excursion below 18hz. This Max15-22 has a projected F3 of around 20hz. But if all the specs are correct on this sub, here is a build option.Ĭhev圜hev ported design tuned to 21hz in around a 5.3 cubic foot box Simulation is with 800w Or at least maintaining an inaudible port noise at full volumes. Typically high excursion subwoofers will have some issues with port noise. And I honestly thought the MX15-22 would be really hard due to it’s High Excursion. As always, the enclosure is the most problematic. I plan to get one, but before I do, I thought I would share some ideas for an enclosure. The new Dayton Audio Max-X 15″ Subwoofer, the MX15-22 is now available.