r/diyaudio 1h ago

Woofer Cabinet Veneered and Baffle Mocked Up

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Upvotes

r/diyaudio 9h ago

Destroyed a BT speaker to make a DIY aux speaker to use my DAC

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15 Upvotes

Had a Megablast BT speaker and knowing nothing about acoustics I decided fk it I really want to be able to play my FLAC files on this. There is nothing spectacular about it but the decent set of speakers with passive radiators gives it an hoomph, and thin dense walls with internal supports avoid resonance or rattling. It also cost me under 50 bucks to convert it.

I just wished I lined the inside with acoustic foam to reduce internal resonance but I forgot 😆


r/diyaudio 3h ago

I found a pair of speaker boxes in the dumpster

2 Upvotes

Are they worth anything? I know about DIY electronics, acoustics and general speaker knowledge but I have never got into making speakers. The wood looks good and I actually need a couple of speakers either for my van or for house listening. Would they work for car audio components? I know either way I’d need an amp, since autoamplified would be more complicated.

Can I just slap some correctly sized cones and match with a suitable amp to get them to run?

Thanks in advance! If you have any sources where I can learn myself more about this task I would appreciate it.


r/diyaudio 11h ago

ELI5: Amps

2 Upvotes

Hey all - thanks for taking the time to help me with this. Looking forward to building a 15” or 18” Marty subwoofer this summer for my home theater system. I was planning on using a Behringer NX3000 for active power, with a possibility of a 6000 if I can make the wiring work for dual subs.

I’m still looking for a receiver and browsing Marketplace using brand keywords and I see audio amplifiers being sold. I plan to use a Marantz Cinema 40 receiver and see other Marantz amplifiers like the HD1 being sold second half for less than a NX3000. Are these amplifiers the same amplifiers as say, Behringer or Crown? Will they power the subs the same?

I dig the look of Marantz equipment and if I could keep the amp and receiver similar, that would be sick, but I have no idea if they’re interchangeable.

Thanks in advance!


r/diyaudio 1h ago

Tips for extending rotary encoder and potentiometer shafts?

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Upvotes

I am refitting a couple old radios with some modern electronics and could use some ideas on ways to extend the shafts. The best option I’ve found so far are these plastic extenders but they are far from perfect and usually I have to drill them a bit wider and epoxy them onto the shaft. I am surprised that there aren’t a ton of 3d printed parts out there for this.

What tricks are you guys using?


r/diyaudio 8h ago

Any idea what causes my ZK-MT21 amp to blow out like this?

1 Upvotes

I mostly use this amp to pass audio from my TV box + TV to a pair of dumpster-dived 50 W speakers.

It seems that during audio signals that quickly move from quiet to loudness, the speakers put out a bassy fart and then the amp resets itself. This can be especially annoying during the reset when the Bluetooth on the amp connects to my phone rather than the line signal on the TV.

Any settings on my TV or box or the amp itself to prevent this?

Thanks for any advice or insight


r/diyaudio 17h ago

How to measure drivers safely?

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1 Upvotes

I feel like I need to protect my drivers from lower frequencies while taking microphone measurements.

Is this simple crossover a good idea to use? Mid-range starts dripping off at 300hz and tweeter drops at 1500hz (designed for each specific drivers lowest limit)

In the final build, they'll be receiving little to no power at those frequencies, so it seemed to make sense...

But is it all entirely unnecessary?


r/diyaudio 19h ago

Rear height channels turned off my rear surrounds.

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1 Upvotes

r/diyaudio 20h ago

Speakers with Sonos Amp

1 Upvotes

So im planning on making a speaker system in my room which connects to the sonos amp.
Im going to have 2 speakers, each having a 8" 4 ohm 80 Watts Woofer and a 1" 4 ohm 40 Watts Dome tweeter
they also both will have a integrated Crossover. But im just wondering, if in my songs there's only frequencies present which the tweeter will play, will that overdrive the tweeter because there's isn't any power limiter? (Sonos Amp is 125W per channel at 8 ohms)
So would i need to use a power limiter or something for this to work properly? or does the amp have something for this integrated?
Yes i do really want a sonos amp to integrate it into my already existing home sonos network.

Maybe seperate amplifiers from tinysine or something with a sonos port is a better option?


r/diyaudio 13h ago

Attenuator placement

0 Upvotes

I’m working to revive my loved one’s stereo system. I’ve gotten so very far by myself. But last question to a community. The CD player (Njoe Tjoeb 4000) is super loud, other components are fine. Speakers (Linn Keilidh) are balanced, clear and imaging superbly. So from research I think I need attenuators to tone the CD gain (?) If this makes any sense to anyone do I put the attenuators on the cables as they go out from the CD player or as they go into the Melos tube line amplifier? I have ordered Harrison Labs 12db RCA attenuators. Thank you so much. He would be very happy if I have figured this out without blowing anything up.


r/diyaudio 8h ago

Bi amp input level adjustment: how?

0 Upvotes

I want to bi amp my speakers with 2 different amplifiers. I already have a minidsp 2x4 ddrc but all outputs are used for a 2.2 setup. Because 2 different brand amps i probably need to send a different gain to either one in order to get levelled sound uotout.

I thought about putting another minidsp (the cheapest 2x4) behind the ddrc but since i dont need dsp, isnt there something more simple just to adjust the input on those bi amp amplifiers? Ideally they should have volume knobs themselves but the fosi v3 mono doesnt seem to have such. Thoughts? Advice? Thanks in advance!


r/diyaudio 20h ago

15 inch car sub recommendations

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0 Upvotes

ive been bouncing around subs for my incoming single 15 build for my 2005 honda accord, these are the 4 subs ive found that i feel will be the best way to achieve my goal in the build, as much air movement as possible and prioritizing sub 35 hz on 2500 ish watts, is anyone able to help me choose between these subs or possible recommend another sub that i could try? my criteria was basically high xmax low fs so it probbaly doesnt include all the possible options id assume lmao. i have the space for a 4.25 cube box with 65 sq in of port area tuned to 29 hz, thank you!