Started these subs last year with a lot of help from the DIYSound community and I really appreciate all the help I received. All I need to do now is add "feet" to the subs, but can't decide what to go with. At the moment they are sitting on a 1/4" of self-levelling foam, and I kinda want to keep it that way. I like the way they currently sound and feel like I don't have a need for proper feet. Should I bite the bullet and order 2 sets of spikes, or SVS SoundPath feet? Will it really make that big of a difference?

Current TEMPORARY Setup

I know I shouldn't have the speakers sitting on the subs, I do plan on making a pair of speaker stands and audio rack.

I honestly do get a little room rattle, I probably just need a little nudge in the right direction and a little convincing to spend the money.

If I decide to stay with the foam mat, I would probably take a sheet of 3/4" MDF, paint it black and stick the foam to both sides. Just to make it look nice.

I also have some squash balls, going to 3D print some cups for them and see how that goes.

Thank you for taking your time to respond to this post, I'm exited to hear what you guy have to say.

So I’m upgrading my ongoing Bluetooth speaker build that uses a kabd-250 board with the lbb 3-v2 battery and nd-91-8 3-1/2” drivers in a pelican 1300 case. I am wanting to tune my project with sigma studio. I am using the kpx dsp board and have everything connected, working, and sigma studio to the point of adding the sample files from daytons website. I soon realized I am in way over my head on using sigma studio. I know very little about anything mentioned in sigma studio. I am wondering if there are any online classes to learn about this stuff or even pre-made files that I can flash to my amp board for a project like this. It honestly sounds fine without any adjustments but there are some simple things I would like to tune to protect the speaker from blowing and distortion but I don’t know where to start.

I found these speakers. They look vintage, with a granite heavy base and triangular frame. I want to recreate them or find the original manufacturer but had no luck with either. (No details on or around the speakers.. and I couldn't find a triangular frame that's the same).

Any ideas or tips on where I can look to find a suitable frame or the original manufacturer? I'm new to the DIY Sound scene and could use some guidance. Thank you.

Currently living in Germany, Berlin and I assume these were produced in Europe if they weren't transported from somewhere else.

​

https://preview.redd.it/9zklssy6wdwc1.jpg?width=768&format=pjpg&auto=webp&s=628c31498d018e5113a8afe290efa234f140d2c5

Hey there, recently I was planning out an idea of placing a projector based setup in our living room as we would like to have a better movie, music and gaming experience.
I plan on either building my own speakers from pre made kits but not entirely sure about that. The surround setup I'm considered costs around 1250 eur, the Q Acoustics 3050i 5.1.
I'm thinking about starting with two built speakers, because i would like to develop better sound and craftsmanship skills. I'm mainly considering the TriTrix MTM TL which comes with an enclosure at around 630 EUR or with a component pack i would have to fabricate the enclosure myself, from Visaton the Alto 2 or the Stella Light, both of them around 250 Eur, enclosure would cost around 100-150 at best I hope. Are these solid options? How could i move forward to a 5.1 or later to an atmos enabled setup from that? I've heard if you choose different drivers for the different channels you could end up with a very bad sound signature.

The issue is that our flat is tiny, and the kitchen is merged with the living space. Here is the floor plan for the room, with an imaginary 5.1 system drawn in (meters/centimetres, sorry for a the junk):

https://preview.redd.it/ayxy7z3bhuvc1.png?width=969&format=png&auto=webp&s=d55f4b49e6c2e611eff4d809205a5193bc5bd12a

On the left side there is a longer entry which is cut off (another 3 meters) and on the right there is this huge window measuring 3 meters wide and 2.5 meters tall. I'm planning to cover all that with a heavy fabric acoustic curtain later, as our current is more like a privacy protector (we don't have rolls on the windows).
The wall-to-wall length from the screen to the back is around 3.7 meters, the ceiling is around 2.7 meters. The screen is planned to be around 100 inch (2.54 m) or even bigger.

My biggest question is that, what will happen with the sound in this weird asymmetric setup? I'm planning on adding acoustic panels as they are sold in 120 cm * 60 cm pieces at low prices to reduce the echo and the annoyance to neighbours. Maybe add extra deep pile carpets bass traps and other fancy things later. Currently the sound travels and bounces all around to the kitchen area and possibly to the corridor, it is definitely a must to reduce stray waves.

Is my approach flawed? Considering how much money it will cost is there anything to consider first as step 0?

Other question: contamination:
Our climate is a bit dusty, mostly large particle dust, and we have to vacuum 1–2 times a week. How this will affect the equipment, the projector, and the speakers? We also don't have an AC, so the summer night will be a bit warm.
We also cook quite frequently and while we have an extractor hood, cooking usually takes place around/before we watch movies, so the humidity will be fluctuating quite a lot.

For rough imperial measures (the plan was made by the builder not measured after anyway) in feet:
7.65 m = ~25
3 m = ~10
3.7 m=~12
2.4 m=~8
2.7 m=~9
The region is Europe so ebay and other things are pretty limited.

Hey just wondering; I have access to an ancient old radio telephone, a Spillbury Tindal.

Would there be any worthwhile tubes or iron inside?

Thanks!

Hey so back when I was well into car audio I replaced my jeeps tweeters and mids and kept the old OEM speakers as well as an extra Rockford Fosgate sub. I am looking to building a speaker box or a boombox sort of thing and need some advice for the build. Only thing I think I would need now is to buy an amp for them, but as far as it goes for making the build, is it worth it and where should I start?

Also what would be some ideas for a power source and housing as this would be something i would just be keeping in my room.

I want to replace my RCF N232 tweeters that i got already installed on theses custom high power concert speaker (from 1980s i think)

The issue with theses is the foam inside are flacking, they are arsh and they are piazo tweeters with some kind of hard plastic dome inthe middle.

I want to get some horn separate from the tweeter the bexause i want to place some Amt tweeters for a softer tone.

Also i think i will use some 12" car midbass (maybe the ones from ds18) just for the look and also because they seems to have similar use cases as the original ones (who are fine but the bass barelly play under 105hz).

Hi everyone, I appreciate the help I received with trying to fix the 8 cubic foot sealed subwoofer. After trying all of the suggestions I swapped the driver to a Stereo Integrity HT-18. Just a refresher that it is powered by one side of a Behringer nx3000. There was a considerable increase in output throughout the frequency range, and although I noticed there was a slight loss of bass texture it was made up for by clean room pressurizing output to 23 hz. Below that the output rolls off but can still be felt down to around 18 hz. I have recently bought Dirac bass management and I will report back my findings after optimizing for my room. Let me know if what I have found is erroneous and I should be getting more output for my room which is roughly an 18 x18 with 12 foot ceilings.

Heya,

I have absolutely zero experience with DIY speakers but would really enjoy getting into it. My very first project would be to build either a small bluetooth speaker, or a 2.0 system for my PC desk.

I am aware that pre-made kits exist but i truly am interested in spending the extra time (and money?) to design the enclosure and potential crossover myself from the ground up.

My goal is not as much to have a high quality end product as it is to gather knowledge (for future projects) and have fun while doing it.

I have a little bit of experience with woodworking, and a bit more experience with electrical systems. I dohowever have a solid theoretical background that should help me with calculations and all.

Have you got any good ressources to suggest, or tips to get me started? What tools (or softwares) are must-haves and what would be nice to have? Any specific website i should get my parts from? (I live in France)

I do not need the speaker to be able to play at high volume as this is a setup I want to use for ambient sound to fall asleep to.

I already build it using this an amp board i found on AliExpress called T50L that had BT and USB and supposedly uses the TPA3116D2 chip. However at low volume I think it has too much background noise / hiss. I've tried using the USB input instead of BT and another power supply but the problem persist so I think I might need something better.

Class A/B maybe? Not too expensive though. Any suggestions?

Hi. I had great success building a 1x12 “box suspended inside another box”. Between acoustic foam and rock wool, it’s as silent as can with great tone.

I run a wet-dry-wet set up so I have been using my ISO cab for the dry center channel and using digital amp sims/IR for the left and right wet effects channels.

I got it in me to try building an ISO cab with two speakers for my wet effects channel. I was thinking I’d put the speakers back-to-back in the box with a layer of sound. Proofing between them. I don’t want to build two separate boxes if I can avoid it.

Any advice about this? Should I invert the phase of one of the speakers inside the box?

Anyone know of a Bluetooth amp board where you can customize the pairing name of the device? Id like to create a set of Bluetooth speakers for a school music program for students to use. I'll paint them different colors and I want their pairing names to show up as what color they are painted.

I know you can rename Bluetooth devices on your phone once you connect, but ideally I want to units themselves to already have that feature baked in before students connect.

I've got the following speaker:
https://www.philips.de/c-p/SW700M_12/spotify-multiroom-lautsprecher
The Problem is, that it only allows connection via Spotify Connect. No Bluetooth, no jack connection.
Do you guys think there's any way to make it, so I can connect it to my pc via jack connection or even Bluetooth?
I also thought of flashing a custom firmware to it, but couldn't figure out how.
Thanks in advance.

Hi guys! I've recently came across a video by Toids DIY Audio and other DIY Audio channels shedding light on all and everything DIY Audio! Now this has me very excited and intrigued to go and try it on my own! I came across Toids DIY Audio "How to Build $3000 Speakers for $500 - Soundstage 15" video and decided that is the route i want to go with! Now the problem is no more plans are available on his page. This will be my first DIY Audio Project and i am having a rough time understanding how to measure out everything! I can't seem to find any FRD/ZMA Data files to the Tweeter/Horn Driver... Let alone all these videos regarding XSim and VituixCAD sounding like blackmagic to me! The Woofer and Tweeter i want to use for this project (same for the ones used in the video) are the following:

Dayton Audio PN395-8 15" NEO Series Pro Woofer with 4" Voice Coil 8 Ohm https://www.parts-express.com/Dayton-Audio-PN395-8-15-NEO-Series-Pro-Woofer-with-4-Voice-Coil-8-Ohm-295-044?quantity=1&irclickid=3a7zb3XYFxyPWdp1qz1Y7U-GUkHWxZ3ZVSL91E0&utm_source=Impact&utm_medium=Impact&utm_campaign=Impact&irgwc=1

Selenium D220Ti 1" Titanium Horn Driver 8 Ohm 1-3/8"-18 https://www.parts-express.com/JBL-Selenium-D220Ti-1-Titanium-Horn-Driver-8-Ohm-1-3-8-18-264-270?quantity=1&irclickid=3a7zb3XYFxyPWdp1qz1Y7U-GUkHWxZ31VSL91E0&utm_source=Impact&utm_medium=Impact&utm_campaign=Impact&irgwc=1

Is there anybody that knows what the correct crossover setup would be? Or even better would be able to help me get a understanding of how to measure this out simply? Like i said i'm very knew to all of this so all/any help would be very appreciated:)

Kind regards An eager to learn audio enjoyer

I have bluetooth receiver AA-AB411 connected to DSP boardAA-AP23122 with 2in-3out interface board connected to 2x100wAA-AB32971. I am using 4ohm speakers. When there is no music playing there is a high pitch noise.

Q1.
How do I get rid of that noise?

Q2.
How can I get 100W RMS per channel to my 4 ohm speakers?

I played 1000 hz tone at max volume and with multimeter measured 8.8V, which I calculated to 19.36W RMS.

I'm not sure what I'm doing wrong.

Any information is greatly appreciated.

Thank you.

EDIT:

4.12.24
I was measuring the voltage with the speaker plugged in (wrong). I measured it correctly and playing with the gain on the input signal from my phone, the amplifier is capable of providing 100W RMS. The DSP can be programmed with Sigma Studio, so I think I will try and program a noise gate to deal with the high pitch noise. I should also be able to fix the input signal gain issue so I get full power with any BT paired device.

Hello all,. I was searching and found this subreddit. Y’all are doing some awesome stuff!! However, in doing a scan in the time I have, I can’t find anything about sub repair, so I’m asking directly.

So, as the old guy: I have my old MTX sub that has lost the bond between the rubber surround and the metal frame. I was wondering if anyone had been successful in rebonding these surfaces, to where it didn’t sound like it was still blown. Any help would be greatly appreciated! -cheers!!

So I have built a couple of portable Bluetooth speaker builds now and each time want to step up the quality. My last build I used a 12v 18650 battery pack and the Dayton KAB-250 bluetooth board to power 2x Dayton ND91-8 3-1/2" drivers. The speaker works great and I want to build one almost exactly the same but want it to charge with a normal USBC cable like any portable speaker you would buy off of the shelf. My last build requires a 12.6v 1A charger that I have to keep up with rather than being able to use a common usb-a to USB-C cable. I am having some difficulty figuring out the best way to go about doing this. I am open to anything.

Hey everyone,

I'm in the midst of planning an event and I'm grappling with the logistics of powering my audio setup. I've got 2 EV ETX 18SP subs, each rated at 1.8kW, and 2 EV ETX 35P tops, each with a 2kW rating. This totals up to 7.6kW of output power for the speakers.

Now, I'm stuck trying to figure out the size of the generator I need. A friend mentioned to me that the output power of the speakers isn't directly equal to the input power they require from a power source, and that it would be a completely different figure. I understood it in such a way that you simply need to add the losses and the actual power needed might be higher. So, based on this, if my speakers have a combined output power of 7.6kW, I'm assuming I'll need a generator that can handle more than this due to the efficiency and power loss during conversion.

My question to you all is, would a generator with a capacity of 7.6kW plus an additional 25% to cover losses and inefficiencies (which brings it to roughly 9.5kW) be sufficient? Or is there a different way I should be calculating the necessary power to ensure my event goes smoothly without any power hiccups?

I’d really appreciate any advice, experiences, or insights you could share to help me make sure I'm on the right track with planning the power requirements for my speakers.

Thanks in advance!

Right up front I know jack about audio equipment and have always found understanding power requirements for equipment confusing so please ignore my ignorance. I have a small aluminum boat that I built a custom deck and compartments into to make a poor mans small bass boat. Wanted some form of a sound system so I bought two JL audio MX770-CCX-SG-TP speakers and at the recommendation of another forum a Fusion MS-RA55 head unit. At the time i didn't really have a plan or the space for an amp and other people said the RA55 would run the speakers ok. For the most part they sound fine but they are really being under powered and id really like to get more when I'm cruising at full speed. The RA55 built in amp says its (25 watts RMS/45 peak power x 4 channels) the jl's power rating is 25-75 watts RMS (225 watts peak), found a video today for a marine kenwood KAC-M5014 which has these power ratings

• 50 watts RMS x 4 at 4 ohms
• 75 watts RMS x 4 at 2 ohms
• 150 watts RMS x 2 bridged at 4 ohms

Basically all I want to know is if this will be a good paring with my current setup. $200 price isn't terrible but if I could get away with something cheaper that is decent quality and a small footprint then I would prefer that. No plans on growing the system down the line since I don't have any more room and those two speakers should be plenty.

Appreciate any advise.

Thanks

Hey im building a budget amplifier and noticed that my 6J1 Preamp output is single ended but my class d amplifier is btl. Anyone got any ideas or boards they could recommend? I was looking at this chip (MP7720 20w class d) earlier and wondering if y’all think it could do

I’ve a hand-me-down JVC RX-558VBK, home theater surround 5.1. The line input on the subwoofer has become disconnected requiring repair. Should I locate a service for repair or replace?

I have an old Tannoy SFX subwoofer enclosure + driver and two Dayton Audio DMA80-4 3" drivers. The electronics in the subwoofer are all fried. Would it be possible to possible to create something all-in-1 with that enclosure? Any interesting build ideas welcomed.

https://preview.redd.it/k0cdm675vusc1.jpg?width=3024&format=pjpg&auto=webp&s=5976b4871ac25d7aaaff6e477b5573cb30cdca6f

I’m a bass player in a rather newish metal band in the Midwest. Currently I have 2 cans that I would like to combine. A peavey 410 and a peavey 215.

What I want to do is make 2 cabs with 2x10” speakers and 1x15” speaker. My issue is I have no idea where to start with building the enclosures.

Any advise or does anyone know where I can go plug numbers in and get the required volume?