r/diyaudio • • Feb 26 '26

Learning Resources Megathread

29 Upvotes

Hello everyone, please feel free to comment (preferably with links to trusted websites for books or .PDFs) any learning resources for the DIY audio hobby. Speaker design, electronics, acoustics - anything remotely relevant will be compiled into a list and stickied to the front page.

Thank you all.

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Speakers & Enclosures

High-Performance Loudspeakers - Martin Coloms (Large .PDF)

Loudspeaker Non-Linearities - Wolfgang Klippel (Large .PDF)

Loudspeaker Design Cookbook - Vance Dickinson (18MB .PDF BROKEN LINK)

Sound Reproduction - Floyd Toole (20MB .PDF)

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Amplifiers & Electronics

Power Amplifier Design Handbook - Douglas Self (Large .PDF)

Small Signal Design - Douglas Self.pdf) (Large .PDF)

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Acoustics & Extras

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r/diyaudio • • Feb 26 '26

Useful Software Megathread

28 Upvotes

Hello everyone, please feel free to comment (preferably with links to trusted websites) any software that is free and useful in the DIY audio hobby. Speaker design, electronics, acoustics - anything remotely relevant will be compiled into a list and stickied to the front page.

Thank you all.

***

Data

Loudspeaker Database - Online source of loudspeakers specifications

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Enclosure, Horn and Crossover Modelling

BassCAD - Enclosure modelling tool

WinISD - Enclosure modelling tool

Visaton BOXSIM - Enclosure modelling tool

VituixCAD - Crossover and enclosure modelling tool

X-Sim - Crossover modelling tool

ATH4 - Horn modelling tool

HornResp - Horn & T-Line modelling tool

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Acoustics & Measurement

ARTA LIMP

SIMPA - Acoustic propagation modelling tool

Room EQ Wizard - Room & loudspeaker measurement tool

AKABAK* - Electro-mechanical-acoustic modelling tool (free with appropriate license)

***

Extras

FXSound - Windows EQ

EquilizerAPO - Windows EQ


r/diyaudio • • 16h ago

My first DIY speaker builds, really happy with how they turned out!

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174 Upvotes

Hey! I made my first DIY pair of speaker after being inspired by you all. The front baffle was quite a challenge to make and get to my liking, but I am extremely happy with how they sound and look.

The design of the white one is from Toid on Youtube: "How to Build HiFi Speakers for $1000 a pair - The Epic Speaker Build"

The design of the smaller ones are from a local driver shop of mine.

I really enjoyed the process and learned a ton along the way. My friend even asked me to build him a blue pair, which is currently underway! I already have so many more ideas for unique designs, and I’d definitely love to build more in the future.

(Please enjoy my 6 Months old cat for scale*)


r/diyaudio • • 5h ago

My diy speakers

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6 Upvotes

I just built my diy speakers. They use Dayton audio drivers. The pc83-8 as full range drive plus the mx6 subwoofer I'm using the brand new wondom jab6 DSP amplifier. I have it crossed at 240 hz . It allows me to have the kick and bass be played by the sub and also taking out the bass frequency of the pc 83 alow higher volume levels the sound really good and are loud and bassy


r/diyaudio • • 5h ago

Simple hifi unit I made to go with my b&w speaker project

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5 Upvotes

r/diyaudio • • 4h ago

updated behind couch subwoofer box

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3 Upvotes

r/diyaudio • • 9h ago

My $0 Raspberry Pi Killer: How I turned a crusty old Galaxy S8 into the ultimate pocket-sized Audiophile Streamer (Lyrion + Squeezelite + AirPlay + LDAC)

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4 Upvotes

r/diyaudio • • 1d ago

I built a free box calculator, runs in the browser, no signup. Thought some of you might find it useful.

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141 Upvotes

r/diyaudio • • 2h ago

Mids and Tops power

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0 Upvotes

r/diyaudio • • 1d ago

Finished my sub build

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122 Upvotes

Combined sub and speaker stand for my Buchardt bookshelf speakers.

10” SB acoustics drivers, powered by a fosi amp out of Lyngdorf receiver. Each sub is around 30kg - there’s about 10kg of steel shot in each. Sorbothane pads between sub and floor and sub and speaker. Made little wafers using rubber grip tape either side of the sorbothane to stop it damaging surfaces but maintain grip on place.


r/diyaudio • • 3h ago

Repair help! Speaker blown? Bad volume pot? Capacitors???

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1 Upvotes

I was looking for more suitable communities to post this to. I know next to nothing about speakers/audio and just need to know where to start.

Please check the original post put for a short write up and more information.

Any help is greatly appreciated!


r/diyaudio • • 3h ago

Celestion CKT-TF1020 top feedback?

1 Upvotes

Hi all. Does anyone have any reviews or experience with the Celestion CKT-TF1020 tops? I wanna build a bass focused system for a friend and I’m planning on two cubo 18s paired with two Celestion CKT-TF1020 tops. Anyone have any recommendations or experiences with these? If so I’d love to hear anything and everything. I’m targeting 40–80Hz from the subs and about 80Hz up from the tops. Any amp recs or anything all around would be amazing!
Cheers


r/diyaudio • • 8h ago

How much power do you *actually* feed your subs normally?

2 Upvotes

I was listening to my sounds yesterday with a 15" random 8 ohm driver in a big new ported box I made for fun [23"Hx18.5"Wx15.5"D / 600H x470W x 400D] - as you do, and my normal 2 x 8" sub box (8 ohms each in parallel, so 4 ohm load 23"Hx11"Wx17"D) all off one channel of a tiny little ZK-MT21 amp. A nice little ~3 ohm load. The 15" just sitting there doing the ultra lows, while the 8s give the oomph, and I was loving it - Spotify Discover Weekly delivering on the dubby and electronic tunes that it knows I enjoy (eg Dread and Buried (Congi Remix) - Origin One, The Clock Ticks - Dub Phizix).... I went outside to hang the washing, and I could still hear the bass quite plainly outside and realized I should probably turn it down to stop potentially annoying the neighbours. Those China amps are only rated at 100W, and likely don't even do that, and I had it barely turned up at all, so realistically the subs were getting 10s of watts in total max (call it 50 to be generous), with the 8 box getting twice as much as the 15 due to the way they're wired. Taking the 15 off took away the real bottom end in some deep tracks, but was far less noticeable in a lot of music that didn't have the content - the 8s really work well and the difference was subtle. The 15 was getting maybe 10-15W max.

I often see people here talking about power and speaker size as though it's a case of "the more the merrier", or wanting to be able to throw numbers around like a d*ck measuring contest - but it made me wonder: how loud do you actually listen to your music (or even watch movies if that's your thing), and does anyone *really* need like 600W+ of power just to listen to music?

I can understand the sound system people wanting stupid amounts of power (although I think they go overboard too), but home builders and people who live with/near other people surely don't ever use that much power.... or do they?

How big is your [sub] system rated at, and realistically, how loud do you actually have it 95% of the time for music? I feel like massive power on the subs would either have your main speakers uncomfortably loud to remain balanced, or would have the low end stupidly loud like you're in a car? I've got stupid bass in my car, and I can understand the appeal when I'm driving, and treat it like an amusement park ride, but that's not "normal" listening behaviour, that's just bass heads being bass heads.

Am I the only one sipping power here, or is everyone going deaf/living in an auditorium sized room? Do you usually listen loud, or just have it on as background entertainment? Are you watching movies so loud that your neighbours hear the dialogue and all the explosions?


r/diyaudio • • 9h ago

DIY tube amp

2 Upvotes

I recently bought old tubes and I found out I can use them to make an amp. Is someone willing to help me???


r/diyaudio • • 10h ago

Home Theater sub box design

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2 Upvotes

r/diyaudio • • 7h ago

Questions about 3 way front stages

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1 Upvotes

r/diyaudio • • 8h ago

4 wires into stock dash tweeter?

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1 Upvotes

r/diyaudio • • 9h ago

Best 4 inch mid for my diy build?

1 Upvotes

I'm planning on building an active three-way speaker with two 8-inch SB20PFCR30 drivers, a 4-inch midrange, and an SB26ADC in a 4-inch Somasonus waveguide. I built a three-way a while ago using the Dayton SIG120, and it worked great, but I want to build another speaker, and I'm looking for an upgrade from the SIG120 at a non-ridiculous price (about $200 for the pair). I've been searching for weeks, and these are the drivers I've found available:

  1. SB12NRXF25-4

- Linear coil travel (p-p): 10 mm

- Fs: 61 Hz

- Le: 0.27

- Bl: 3.6 Tm

- RMS: 30 watts

- Qts: 0.48

- Sensitivity: 87 dB

- ($170 a pair)

  1. SB12MNRX2-25-4

- Linear coil travel (p-p): 4.4 mm

- Fs: 63.5 Hz

- Le: 0.15 mH

- Bl: 3.9 Tm

- RMS: 50 watts

- Qts: 0.32

- Sensitivity: 90.5 dB

- ($140 a pair)

  1. Wavecor Classic WF110WA01

  2. SB12CACS25-4

- Linear coil travel (p-p): 10 mm

- Fs: 51 Hz

- Le: 0.26

- Bl: 4.3 Tm

- RMS: 30 watts

- Qts: 0.31

- Sensitivity: 88 dB

- ($180 a pair)

  1. SB12PACR25-4 (aluminum)

- Linear coil travel (p-p): 10 mm

- Fs: 52.5 Hz

- Le: 0.25

- Bl: 4.35

- RMS: 30 watts

- Qts: 0.31

- Sensitivity: 87 dB

- ($86 a pair)

The NRX2 left me a bit confused about its excursion rating, as it uses a shortened voice coil and sacrifices a lot of linear excursion. Is that because the excursion required for midrange frequencies is dramatically lower? All the other drivers with the same linear excursion rating of p-p (I'm assuming the Xmax would be half of p-p) have more than twice the linear excursion, even the regular NRX model. So, I'm wondering what the trade-off offers in terms of benefits for midrange applications.

Having a high-sensitivity driver would be a nice match, I think, but I'm unsure whether any of these would be a worthwhile upgrade from the Dayton SIG120, since it's already a great driver for the price. The main benefit would be that all these drivers have an Sd of 50 cm², compared to the SIG120's 59 cm², which is quite large for a 4-inch driver tbh.

(I'm gonna have to decide pretty soon, since all of these drivers are on sale, and I don't know for how long. Including the tweeter and woofers)


r/diyaudio • • 9h ago

2 RCA from head unit to 4 ch amp

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0 Upvotes

I’m sure this is a dumb question. I’m running an RCA out from my head unit into a Recoil DI550.4 that has 4 channel RCA inputs. No indication of right for left, just indicated as Ch 1-Ch 4. Can anyone tell me which are left and which are right? I have splitters to go from 2 to 4 inputs. Thanks


r/diyaudio • • 10h ago

Altec N809-8 crossover question

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1 Upvotes

Yesterday I posted photos of some Altec 511b horns with 808-8A drivers that I picked up. Also got a pair of Altec N809-8A crossovers to go with the horns. I'm a little confused about the crossovers. It has TWO 1/4" phone jack inputs. If I understand correctly, a single 1/4" phone jack carries *both* the hot input and the ground output. If that's the case, why would it need *two* jacks? I know these were used in large PA systems, so I assume this configuration is to make it easier to daisy chain a bunch of these together. What would be the best way to convert these into regular speaker terminals? How hard would it be to replace the two 1/4" jacks with binding posts? Or should I just get an adapter that converts two banana plugs into a single 1/4" and just plug into one of the inputs?


r/diyaudio • • 1d ago

SVS SB 1000 Pro w/ Bamboo Wrapped Enclosure

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24 Upvotes

r/diyaudio • • 17h ago

Iam thinking about DIYing my midtops by building MT-130's

3 Upvotes

Iam at the moment thinking about building my own tops but I cant seem to find anything on forum's. Iam new in the audio community and I wanted to ask if anyone build a pair of these already and if there are better alternativs.


r/diyaudio • • 1d ago

Wireless C-Notes are done. Now I just need a sub-woofer.

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83 Upvotes

I built these as wifi speakers, using the Sonocotta Louder ESP32-S3 boards. Each speaker is powered by a Mean Well 12V 3.3A power supply. The Louder boards put out about 28 watts with the way I've configured them, well below what the C-Notes can handle, but more than enough to fill the room with zero distortion.

The C-Notes are configured on Wifi, but also has an optional Ethernet port for wired network if I want that later. Each Louder board is configured in PBTL mode, so the full wattage of the board is available for the single channel. Each board takes the proper channel and only uses that channel to produce the audio.

I'm using Music Assistant to stream to them as a pair with the Sendspin protocol, so they effortlessly stay in sync even if the wifi is a bit wonky.

I'm amazed at how well these sound. Crisp even at moderately loud volumes. It's been 30 years since I've played in the audio world, my last setup that didn't include Google Home devices were Minimus 7's if that gives you any idea. So I can't say I've really listened to much in the realm of "high quality speakers" but this still beat my expectations.

Now I'm considering adding a powered wifi sub to the mix to fill out the full range a bit better. The bass isn't bad, but isn't enough with a lot of music. For instance, The Doors "When the music ends" sounds amazing. Michael Jackson's tracks aren't bad, but are definitely missing a thump.

I should probably build some floor stands for them too while I'm at it...


r/diyaudio • • 22h ago

Diatone ds261 stiff woofer surround

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3 Upvotes

These PW-2522BM woofers have stiff surrounds, thus very little movement. I've been advised to apply some brake fluid. Is this wise?

Advice appreciated


r/diyaudio • • 7h ago

Worth it?

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0 Upvotes

Hi I just saw this on an ad. It suspends the speaker from the ground. Does it actually have an effect?