So you’re saying the crown amp doesn’t have a high pass filter?Psy, I bought the 6000d as i intend to run 2 of these albeit 15”s. The amp is extremely loud! If you ever owned an Xbox 360 think that but even more so. Im routing mine to a cupboard next door as there is no way I could have it in the same room. I would have liked a crown but ultimately budget and the inuke has the high pass that will protect the driver where as the crown wont.
So you’re saying the crown amp doesn’t have a high pass filter?
The reason I pointed it out was that i see you have glued some small pieces of mdf around the speaker hole, assuming for the screws to have more material to bite into?Aye! My chop saw is in the cinema as the garage is too full so it's a faff getting it out to cut so this weekend I'll sort out the final bracing pieces I need.
I should be able to finish assembly but the NX3000D is on back order from Amazon and looks like it won't arrive until next month
I haven’t yet, once my room is done i will finish the subs although the warmer weather is calling for me to finish outside.Added some more bracing and then lined it:
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I then test fitted the front but it's a mm or so too long so need a trim but it's time to make pizza:
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@Dans1210 how much did you stuff yours? I've got tons of polyfill.
Ah cool, the last picture in post 19 shows some additional support I've put in place for the baffle by the port so hope that will be OK.
I'm trying to decide on amps at the moment. The 6000D has gone up in price, it used to be £318 on gear4music. I'm wondering whether I really need it or whether a 3000D will suffice, I may run two subs in the future but I can't see it happening any time soon given other life demands on my wallet. I know there's a lot said about fan noise and I may have read the 3000 only has 1 fan?
The other option was going for a Crown amp as I gather they're quieter and then getting a Mini DSP to go with, not as neat as a one box setup and probably more expensive.
is the lining from the earlier post still what you have in there? hard to tell from the picture but you might benefit from something placed to attenuate the length (or width depending on how you place it) mode. It will be extremely easy to see this on an impedance trace if you have that capability (and easy to make a jig for that if you haven't).
Sounds like it will be ok thenHow would I do an impedance trace?
The NX3000D arrived yesterday and I've got it connected up and working this evening. I think I'm going to need a bit of help getting the best out of it.
I've got a Marantz AV7705 connecting to the NX via XLR. Sub cabinet should be ~17Hz. Here is the initial configuration based on this AVS thread: https://www.avsforum.com/forum/155-...tend-high-pass-filter-below-20hz-dcx2496.html
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Now a couple of things to note:
1. I haven't run Audyssey on the Marantz yet as one of the speakers isn't working, think I need to check the wiring this weekend.
2. The input gain on the NX had to be 100% to get the input lights showing up.
What should be my next steps getting everything running properly and in what order? I have REW so I can take some proper measurements but suspect I need to get my levels and gains going correctly.
This AVS post has a process, I'm not sure if following it would be wise: https://www.avsforum.com/forum/155-diy-speakers-subs/1628609-setting-inuke-amp-gains.html
I've also been following @mkohman thread (Mini Marty: Dayton Audio UM18-22 18" Ultimax (Build Thread))
Looks good Rich.. Out of interest why is your phase set to 180? Have you tried 0?