Help me design my ultimate Studio Monitor

[mayhem13]

A lot of people buying new speakers to achieve new voicing (eq)....and its silly. Its so funny you said it that way you did, I feel like I almost wrote but then I was like naw, I don't want to start talking technique, these guys....so i didn't post it...but then you said it ....just wondering when the connection will be made that this is just one eq setting away, whether your speaker controller dsp or an eq on master channel of the daw...and buying a completely new set of speakers to only to remove "LF and HF content" is ridiculous

But it’s not just an eQ adjustment, the crossover phase issues would remain....just because the response may remain unchanged, the system would still sound different and I would be listening to two drivers instead of one in the nearfield.........

Remember, my goal here is to replace THREE sets of monitors with one AND to repurpose the others.......the mixcubes can go with the new MacBook for field recording, the 2 ways will go on Reverb for sale to let another young engineer start his journey and the big ScanSpeaks will get a flavorful XO redux and move to the lounge for clients to enjoy.....instead of listening over my shoulder, creating boundary effects and early reflections! LOL

 

[mayhem13]

Unless the 4" is very extended on-axis (flat to near 20 kHz) you will likely be "looking" at a more complex filter than what I've suggested: more complex filter = more components in the signal path.

88 db at 2 meters, no problem for even the Fountek 3" provided it's loaded (good enclosure) properly and bandwidth dependent.

Note: the lossy foam plug I mentioned does turn it into a more of an aperiodic design. You can improve on this with a hard center plug surrounded by the foam that gets pushed into the port. If you want to make it sealed you'd do the same hard center surrounded by a flexible seal (.."o" ring).

Ironically I generally don't recommend *sealed or especially aperiodic designs with drivers that operate much beyond 400 Hz. It tends to reduce depth reproduction. Bass reflex designs that are specifically designed for this sort of operation/pass-band have in my experience produced MUCH better results (..and it's obviously a REAR port). It has very little to do with the pressure contribution of the port: that's almost incidental (..though important to get the correct high-pass result with filter).

*sealed designs with long-length enclosures (and large volumes relative to the driver's Vas) and very specific "stuffing" (kept off of the walls of the enclosure) are almost as good as a good Bass reflex design.


In any event, it's something you can try pretty cheaply.

1. you make the baffle-size you've modeled (just a board with the baffle dimensions and round-over along with some 4" rockwool on the back except of course where the driver/enclosure will be).

2. you make an enclosure you are interested in for the driver and adhere/connect it to the back of the baffle. Driver should be flush to the baffle with almost no space between the frame and the baffle.

3. measure the result.

4. listen to it.

See what you like. 😉

Got it! I think a piece of 4” PVC pipe cut to length of the estimated depth of the enclosure should do it. This test config should be relatively easy so i’ll add a strip to the bottom so it sits well on the mixer bridge where I intent to put them. I’m subsribed to SONARWORKS anyways so i’ll let it have a go on them as well.

Now to pick the candidates and start ordering. Hopefully there’s enough interest in the used market for the drivers that don’t make the cut or this project will get expensive! LOL

The Fountek FR88 and Dayton RS100P are gonna get the first go round. I’ll wait for suggestions for other candidates......get the aluminum favorite out front first.....not sure if I can work with an aluminum mid......NOT something you see often in professional monitors.