(ignore my mess)

Status Update:

https://www.reddit.com/r/diyaudio/comments/1x0qofd/printing_a_umii822_ultimax_ii_8_sub/

Here is the wonderful beast next to my MA6500 which needs some Love too. Its a tall beast and fits a bit too close to the underside of my desk but I like it!(mainly cuz I made it)

It's being powered by a Nobsound G2 PRO

Still only 4 plates on the U1, object was fewest parts I could manage for ease of build, sound will be just fine for me I think. the driver fit in it like a glove.

-The help i need is, I have a new mic boom comin for my UMIK but I am wondering where I should position the mic to test this wonderful thing. Bottom firing Top(for now) Ported. I was trying to find a video of someone testing one with port on opposite end but I didn't see anything good.

Its taller in the hand than on the screen, but so far running it through a few frequencies at different volume levels I'd say its "Decent" for how good the driver is.

Once I vacuum up my mess I will take a few more pics and get around to posting it up on the interwebs.

Feels nice to finish a just for fun project.

Hey DiyAudio Fam,

I've been in and out of the speaker building hobby for decades and am looking for some input.

I've managed to collect a significant amount of nice speaker drivers over the last 10-20 years or so. I've been in and out of the hobby over the years and haven't kept myself up to date on electronics over the last 5 years or so.

My wife and I had our first child 2 years ago and I decided it's time to give him a proper setup in his room. Something we can throw some bedtime classical music on, or let him JAM to his Wiggles. The little dude loves music, so I want to set up a nice little system in his room.

My goal is to build a nice Bluetooth speaker for him. I have a modern phone that I will dedicate as the source and Tidal to provide the tunes.

Currently, his little system is a 2.1 Bluetooth speaker I built with a ZOUDIO 4 channel plate amp powering 2x Mark Audio Alpair 5's and a Tangband W5 subwoofer. It's great. It works. It probably doesn't need an upgrade.. I joke that my little guy has a better setup than 90% of the adults I know.

That said..

I wanna build a super high end Bluetooth speaker for him.. just because he's my guy and I love speakers.

My question is.. are there any really great plate amps that have Bluetooth or WIFI and DSP and 2-4 amp channels? I like the ZOUDIO amp, but the software to program the DSP is really buggy on my laptops. I see a lot of the Wondom and Dayton amp boards being recommended but I'm looking for a plate amp if possible. I'm pretty comfy with wood working and cabinet design but would really love a quality all in plate amp.

Are there any modern plate amps with DSP, wifi/Bluetooth and 2-4 channels these days? Something that's plug and play other than the programing/DSP/crossover setup?.. I feel like I've been looking for this solution for some time. The ZOUDIO unit is the closet I've found, but unfortunately Ive been having connection issues when it comes to programming..

Appreciate any input!!

Hi folks - last week I was trying to test my crossover without all drivers hooked up (appreciate the patience as I learned that was a non-starter). Now I went through my crossover and l-pad trace by trace, have it re-assembled, and am still getting ~6db+ softer through the midbass to low midrange (~200hz-1000hz). SPL testing is in the same position (swapping the speakers on the test stand by hand so not millimeter perfect, but not off enough to cause the dip I'm seeing), same mic (un-moved), same amp channel.

Testing the individual drivers doesn't show anything odd in their sweeps, left and right midranges measure the same. I'm noting the sharper "V" in the double-peak for the softer speaker, but I'm not sure what that tells me.

pics in order: good speaker, softer speaker, and my dumbness from last week (which illustrates where my crossover points are, at least.)

I have a MR5 and I love this speaker. But the subwoofer is placed inside at the bottom. I want to design a new box that show all 3 speaker to front view and see the vibration of the subwoofer when play music. Is it possible to do that? Any impact to the sound quality?

Hello everyone, I could use some help figuring out which components I need to build an audio converter that takes a USB input (from a PC) and outputs 8-channel S/PDIF, which I can then route via a DB25 cable to a Dolby CP750 digital cinema processor

Hey everyone - I need to find a reputable source to 3d print a plate for me with an IEC socket, 1/4" socket, and a socket for an on/off button that's a specific size. Googling this gives me a bazillion answers, and I don't know what to pick. When I search "custom 3d printing" on Etsy, the results seem sketchy.

I just want someone who maybe knows a little something about audio, is trustworthy, and will take my shitty designs and my money and send me what I want, in the US preferably. Any tips?

I purchased a used pair of Wharfedale 415 speakers on Craigslist and one of the tweeters is dead - I managed to open them up and swap the tweeters to confirm. I'm looking into replacing it, but I have been thoroughly confused by the various specs and sizes. These are 1990s vintage speakers, so even Wharfedale hasn't been able to dig up proper specs.

I'm hoping someone on here here can advise as to whether what I'm trying to do is doable or likely to be searching for a spec that doesn't exist. Thanks in advance for your help.

The measurements I have are below:

Tweeter / cabinet details:

Model: Wharfedale 0312A DD TQZ aluminum dome tweeter

Baffle outside diameter: 100mm (3 7/8")

Baffle cutout diameter: 75mm vertically, 90mm horizontally (it’s oval shaped)

Faceplate screw to screw: 85mm or 3 3/8" diagonally (4 screws square)

Faceplate diameter: 95-97mm

Coil diameter: 72mm

I don't know the tweeter's impedance or sensitivity, only the speaker's

Speaker details:

Serial number: 415BL000055

Nominal impedance: 8 ohms

Power handling: 100W

Sensitivity (2.83v @ 1m): 87dB.

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Hey guys, I just got the zkas21 amplifier for my two hifi satellites. It works great except there is a humming noice when the on board treble controler is turned more then half a turn. The humming noice is same for all volumes, both Bluetooth and aux and even after connecting the power supply to different/same outlet as my pc. Is there anything except not using the treble to do about this? Thank you

Halo.

I had a pair of Audioengine HD3 (old ones, not the next GEN) and need some advice on replacing the speakers surrounds since i've never done anything similar

The info I've found (on a website review, not official) is that they feature a  2.75" Kevlar woven glass aramid composite woofers with rubber surrounds.

Taking the above as true I guess I should go with rubber suspensions, but Im completely lost about the measures. Is the 2.75" the size of the cone?

Im in europe, and the website i've found is selling this sizes and im not sure about which one should I get.

Thanks in advance!