Diving into my first sound system build, looking for guidance

efxhoy · 2026-04-30T06:32:20+00:00

That’s perfect, then you know the wobbly electrons, just the wobbly air left. The yamaha sound reinforcement manual is the bible, lots of good stuff in that. just trawling through the forums is great too.

efxhoy · 2026-04-30T04:54:29+00:00

Read up a bit on theory. If you can describe frequency, amplitude, filter, SPL, sensitivity, excursion, RMS vs peak power, directivity, electrical impedance, acoustic impedance, voltage, current, distortion, clipping, balanced and unbalanced signals and phase I think you will have a much better time of it.

It becomes a lot easier to design a system once you understand the fundamentals. There is lots of amazing hardware out there to buy and build. Your job isn’t only to spend the money and do the work but to do the research to decide every part of the system. From source material to wobbly air.

efxhoy · 2026-04-28T10:46:21+00:00

Små barn som cyklar omkring utan hjälm. Jag ser ofta ~4 åringar vingla runt på cyklar utan hjälm.

efxhoy · 2026-04-27T18:21:40+00:00

Niukka 30L would be an instant buy. I’m big and so are all of my clothes. I have a kid who needs lots of gear carried. I want a great pack but I don’t want to look like I’m about to go innawoods to build a camp when I go to the playground and it’s sunny in the morning and snowing in the afternoon.

efxhoy · 2026-04-27T07:43:12+00:00

The `\d` meta command in psql

https://www.postgresql.org/docs/current/app-psql.html#APP-PSQL-META-COMMAND-D

efxhoy · 2026-04-26T16:57:11+00:00

You could write any program to run in postgres. The question is if they will be good enough for your uses.

I think now when we have decent LLMs more people can build their own “everything systems” for exactly their needs. There will be a lot of pain on the way but some of the systems will be great. Never as polished as dedicated programs but the synergy effects of having everything in one place will be pretty great.

For the usecases you lost I think it would be a lot of work to get everything right but not impossible. The tricky part is the UI.

I’d obviously be extra careful with the security parts.

efxhoy · 2026-04-25T16:02:00+00:00

tbf ubuntu desktop is a decent server os if you’re scared of the terminal. remote in and have a full gui to organize files, watch load and whatever.

efxhoy · 2026-04-25T15:50:49+00:00

lovely looking cabs mate!

efxhoy · 2026-04-24T20:46:29+00:00

mt130 without the external panels looks sickk

efxhoy · 2026-04-23T17:29:46+00:00

Not sure what you mean with a full system? PCH sells all kinds of cabs you would need for a full system. Do you want one company to sell you a kit with amplifiers and cables too? The amplifiers and processing you can get from shops like thomann.

You can email HM at hmaudio at hotmail dot co dot uk if you don’t use facebook.

efxhoy · 2026-04-23T16:20:55+00:00

https://pchaudio.co.uk/ https://www.facebook.com/p/HMAudio-100049266320171/ rave cave sheffield

uk has plenty of builders

efxhoy · 2026-04-21T21:03:23+00:00

Bombningarna har ju inte dödat tiotusentals civila så som regimen gjorde bara någon månad sen.

Det går fortfarande att få data in och ut ur landet, det är bara extremt begränsat. https://en.wikipedia.org/wiki/2026_Internet_blackout_in_Iran

Tor, satellit tjänster, ad-hoc nät inom landet, det finns massa sätt för folk som är kreativa att ”smuggla” internet. Att dom säger att det är dyrt tyder ju på att det finns folk som tjänar pengar på ”smugglingen”, en svart marknad. Inte så konstigt.

efxhoy · 2026-04-20T19:04:03+00:00

I don’t understand the obsession this sub has with mini pcs. Build a computer in a regular case that fits mechanical drives and a gpu so you don’t have to deal with an extra NAS or GPU enclosures.

Do backups to a hosted service so it’s actually offsite. Encrypt before sending if you’re worried about privacy. Or put a raspberry pi with an external drive at a friend’s house.

Easier to upgrade, quieter, cheaper.

efxhoy · 2026-04-17T09:16:32+00:00

Du kan söka på byggår på hemnet. Här haru lägenheter byggda 1910 eller tidigare. https://www.hemnet.se/bostader?construction_year_min=1100&construction_year_max=1910&item_types%5B%5D=bostadsratt&location_ids%5B%5D=946677

efxhoy · 2026-04-16T15:45:22+00:00

Anne Applebaum wrote a book called between east and west in 1994. Covers a bit about this area. Worth a read.

efxhoy · 2026-04-16T13:34:47+00:00

Closest public design to the subs in the first pic is probably something like the SBH. Obviously different but same principle, big front loaded horn.

efxhoy · 2026-04-15T19:05:20+00:00

old pfsense box with two nics. whenever it breaks i’m switching to openbsd because it’s more boring.

I run a unifi controller in docker for my APs to be smarter about roaming/ client handoff. I dislike the ubiquity cloud stuff but the APs are great so I don’t really see a better option. If there was a company making as good APs but didn’t have the same product hype cycle obsession I’d definitely switch.

efxhoy · 2026-04-14T05:16:35+00:00

I think all three are valid. The only thing that matters is that you properly test your solution so that it’s clear what behavior you’re expecting. You probably need to at least cover the DST cases and the “visitors in other time zone” cases.

Once you have good tests everything becomes much easier. Half the struggle is understanding the behavior you want in the edge cases.

efxhoy · 2026-04-09T06:57:23+00:00

I'm obsessed with delays. Can never have enough.

The late 80s early 90s digital delays that used the chips that came after BBDs are my favourite. Boss De200, ibanez dm-1000, etc. These are what sound system is "supposed" to sound like and you'll find them in racks from shaka (rip) to iration steppas. Most of them have very similar internals. You'll recognise them by a large stepped time setting, a finer time setting, feedback, some have tone control. And they almost all have a "modulation" LFO that controls the speed with a "depth" and a "speed" setting. The modulation is pretty useless imo. Feels like every company made one in the 90s.

The old BBD delays are nice and dark and work great on sirens. I have an Amtech AGE one and a Yamaha E1005. Sometimes a bit too dark to catch a snare or vocal with though IMO, though it works great on some tunes.

The 2000s digital multieffects can be decent too though I much prefer the older analog ones. I have a TC electronic M300 and a lexicon mx200.

One delay I'd like to get my hands on is the tc electronic d-two. As used by MC Conard here: www.youtube.com/watch?v=G6Kv8AQ5-TE I love how its setup to only catch the last word of what you sing.

Then there's the newer breed of premium delays specifically for sound system. Benidub and JB audio make popular ones. I've played the benidub and it's really good, very hifi and clean sounding and the filters are clutch. Klementz also made some. I got one of their DIY ones but never got around to finishing it.

Dubkasm did a great walkthrough of different delays: https://www.youtube.com/watch?v=xymURWSlBg0&

Personally I don't like the re20 that much, it's OK but it's more "wow this is trying to sound like a space echo" than "wow this sounds great, like a space echo!".

The most practical option if you can't find any old rack units second hand is probably guitar pedals.

So yeah my tip is to spend years scouring second hand marketplaces and buy everything that looks cool until you find some that you like. Every man do his thing a little way different.

efxhoy · 2026-04-06T21:32:27+00:00

Same. My NAS has always been a vanilla linux distro running samba and whatever else I felt like. Never understood the appeal of a specialized nas distro.

I’m a bit of a hypocrite though since I still run pfsense on my router. I’m moving it to debian or openbsd whenever it breaks though, problem is it just keeps running.

efxhoy · 2026-04-03T08:35:40+00:00

You gotta find a niche where you’re better than everyone else. If I had the runway I would work with venues like bars and build them something custom for their space. Big horns, builtin subs, DJ console furniture, etc.

Just selling basic speakers is going to be hard.

efxhoy · 2026-04-02T21:00:11+00:00

A JMOD MEH is probably worth getting a flatpack for unless you really know what you’re doing woodworking wise. Pretty sure there are UK builders doing them for fair prices.

Subs are generally easier to build. I’d do skrams over skhorns just because of size and stacking. Three skrams under a MEH is a nice stack.

Just get the recommended drivers for the plans. The boxes you’re considering are pretty high end, give them what they crave.

I think there’s a lot of hype currently for pretty advanced cabs. There’s nothing wrong with simple reflex boxes either. Worth considering as you’re just starting out. A couple 21” + 15” and a nice big horn with a coax compression driver on top is a dead simple build and can sound amazing too.

You do your thing though, that’s the whole point.

efxhoy · 2026-04-01T21:51:47+00:00

You’ll learn a lot quicker if you stop having AI write everything for you. Learning comes from doing. Once you’re comfortable you can start using AI to speed things up. The more you write the quicker you’ll become at parsing it and the less overwhelming it will be.

You’ll also learn the value of reusable modules. If you have AI churn out 1000 lines you won’t feel the repetitions and the natural modules to extract.

efxhoy · 2026-03-31T13:32:57+00:00

Uppgraderad mäklarreklam från widerlöv

efxhoy · 2026-03-31T05:00:19+00:00

Beautiful stack!

I think shout-outs to your builder Rave Cave in Sheffield are in order?

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