simple hacks for high end audio

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#21
The term "Snake-oil" needs to be replaced with "Lacquer-lies"; what total BS. And using BT instead of a cable 😱😱. WTF! And in any case all the "tweaks" - solar=expensive; DVD-A = where the heck does one find the source material now-a-days;cutting AC = computers have switched-mode-PSUs requiring AC input most times; no wires - 😱 as per MarsBravo post re clicks et al ; arrays / horns require space = normally lacking in an average lounge (or will OP donate money to DIY Audio community for required mansions); DIY speaker drivers 😱 - it takes an exceptional amount of equipment to make a speaker (please donate more money and mini-factory); 3-D printing and/or concrete casting - please provide more money, strengthened floor joists and hoist required to get speakers in place.
Kevin
P.S. Or does one make a new PSU for the PC with multiple DC-DC buck boosters?
 
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#23
MarsBravo said:
Being head tech of a venue for years, keeping up levels is to maintain distance from the noise floor as much as possible, all mac's for convinience and reliable performance only (no sudden unwanted 'updates'). You don't want hissing from the (active preferred) FOH at DBO's. And, redundancy as a prime rule, so reliable cables (everything double, a military order) and balanced connectors in prestine condition, no wireless, no lacking or licking, reliable and prooven brands only - absolutely no diy crap, understanding of created, reflected, indirect and supportive sound sources, environment variables, audience, safety and well being of present ears, hearing aid loops, closed tv monitors, overhead mikes, director, stage and backstage communcation, well tempered phase cutting light dimmers overhead buzzing 100kW through pars (the worst), pc's (spots), fresnels, profiles, moving heads, air conditioning and vents, and unmountable amounts of safety regulations.
I'm pretty sure I've missed the other 90% which also should be taken into account.

And at home, just enjoy your own admired setup, unhacked, unaware.
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you seem to talk technical and professional, but you haven't taken in consideration the real sound physics with technical data, electronic circuit science and production methods of all the obsolete hardware "reliable and prooven brands only" that you use for larger watts output.

even if the basics of sound are the same than 100 years ago, technology changes and improves.

your speakers are absolute crap, they overheat increasing impedance and losing output, they are just a little of copper coil, paper cone and ferrite magnets, I'm sure you have paid thousands for them and you still are proud.

your cables are a pain in the *** for the people that have to connect then, and if you use higher voltages they can kill you, in a public setup wireless audio is mandatory with speakers with integrated amplifiers (what people now call active speakers)

your EQ and rest of hardware is just pointless since the invention of personal computer and programmable cards. You are paying old for a bunch of pointless stacked electronics that consume resources, energy and money, our opinion isn't based in electronic circuit science but rather advertising.
 
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#24
ferret said:
The term "Snake-oil" needs to be replaced with "Lacquer-lies"; what total BS. And using BT instead of a cable 😱😱. WTF! And in any case all the "tweaks" - solar=expensive; DVD-A = where the heck does one find the source material now-a-days;cutting AC = computers have switched-mode-PSUs requiring AC input most times; no wires - 😱 as per MarsBravo post re clicks et al ; arrays / horns require space = normally lacking in an average lounge (or will OP donate money to DIY Audio community for required mansions); DIY speaker drivers 😱 - it takes an exceptional amount of equipment to make a speaker (please donate more money and mini-factory); 3-D printing and/or concrete casting - please provide more money, strengthened floor joists and hoist required to get speakers in place.
Kevin
P.S. Or does one make a new PSU for the PC with multiple DC-DC buck boosters?
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you all seem try to be knowledgeable and not being called trolls, but you are when you defend the real snake oil or audio industry marketing

I have one of the best Bluetooth headphones (sennheiser momentum), I wanted to use them with a "gold plated" jack but when I use them with wires they sound crappier, I no longer use them with wires, and the same with the car audio player.

solar is cheap, make a lithium battery and buy some cheap solar cells and a charger

dvd-aaaaaaahhhh
DVD-Audio » Free lossless and surround sound music download (DVD-Audio, DTS-CD, SACD, Audio-DVD, DTS 5.1, FLAC, APE)
DVD-Audio Decoder and Watermark Detector download | SourceForge.net

all pcs work in DC from 1 to 12v aprox , you can use a dc-dc PSU

arrays only take vertical space, you can make an integrated horn speaker-bookshelf at the sides so problem solved and better. books and stuff reduce sound reflection.

diy speaker drivers....these are 3d printed speakers, even if that method is not the most efficient, he's making decent speakers with good level of tweaking and material experimentation.

Assembling Tenacious 6 - 3D Printed Full Range Speaker - YouTube

3D Printed 2-Way Bookshelf vs Industry Bookshelf Speaker - YouTube

you don't need joists, just make any speaker with two walled printed mold.

you aren't a dyer, you are a fanboy, lazy enthusiast that rather reading scientific publications try to assemble the advertised snake oil crap out there, just like avforums
 
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#26
the most efficient and equal sound dispersing (no lobbing) array is a horn array. with horns you avoid all the problems of line source speakers.

this is a high frequency array, it's an exaggerated professional speaker, you can make an array with few small compression driver or cone speaker drivers

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J4-Front-View-cropped-e1342117942359.png
 
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#27
This is hilarious, keep it coming!

I also never knew SNR was something to "totally remove", and that the aim of high-end audio is "very loud homewrecking sound", glad I finally got enlightened. Will definitely wind my own field coils now ("simple hack" if ever there was one!) and cast cones from liquified epoxy-nitrogen carbon fibre sandwiches!
 
#32
afk said:
the point 2 is used by sound engineers in concerts, its common knowledge even I found by myself and that shows the illiteracy of audio enthusiasts and home audio industry.
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Well.... Almost. Except that you have it exactly backward. 😀 You don't understand gain structure at all, but it appears that you've at least heard of it.

FWIW, I've been in the live sound biz since 1975. That makes me pretty familiar with the "common knowledge" of the industry.
 
#34
geotone said:
This is hilarious, keep it coming!

I also never knew SNR was something to "totally remove", and that the aim of high-end audio is "very loud homewrecking sound", glad I finally got enlightened. Will definitely wind my own field coils now ("simple hack" if ever there was one!) and cast cones from liquified epoxy-nitrogen carbon fibre sandwiches!
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A high end audio system is mostly a system that can fill a big room with all high and low frequencies however you can buy a high end bookshelf speaker to listen in your tiny cabin. High end sound is not undistorted sound for classic music nerds, high end audio is mostly noticeable with rock and electronic music which has all the sound frequencies and it's ******* homewrecking

Bluetooth doesn't transmit "accumulated" or "preamplified" SNR created mostly by the RCA connections and cable

if you pour liquid air or nitrogen in non superconducting electromagnets, the conductivity goes to the roof, so more magnetic flux without resistance. you can make liquid air or nytrogen at home with a compressor and heat exchanger and use it with a poor conductive material in the coil, in other words, you don't need ferrite, copper, alnico, neodymium, etc

this is , or was the strongest magnet of the world, of course is a cryogenic, superconducting electromagnet
The Split Florida-Helix Magnet - YouTube
 
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#35
Pano said:
Well.... Almost. Except that you have it exactly backward. 😀 You don't understand gain structure at all, but it appears that you've at least heard of it.

FWIW, I've been in the live sound biz since 1975. That makes me pretty familiar with the "common knowledge" of the industry.
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well, I have tuned hifi systems, not concerts that involve larger sound propagation, microphones, etc but I understand that gain structure with this hack, the step further is knowing the the microvoltages and microwatts of the gain, etc between all components
 
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#36
afk said:
Bluetooth doesn't transmit "accumulated" or "preamplified" SNR created mostly by the RCA connections and cable



if you pour liquid air or nitrogen in non superconducting electromagnets, the conductivity goes to the roof, so more magnetic flux without resistance. you can make liquid air or nytrogen at home with a compressor and heat exchanger and use it with a poor conductive material in the coil, in other words, you don't need ferrite, copper, alnico, neodymium, etc
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That is all good to know, and, again, some really "simple hacks"! I'll see how I can get that liquid nitrogen into my speakers.

It's so cool that Bluetooth does not transmit any SNR! Those RCA cables are really nasty in that respect, maybe you could treat them cryogenically as well? Do you pour liquid nitrogen onto your bluetooth transmitters or is that not necessary because of the absence of SNR?
 
#38
geotone said:
That is all good to know, and, again, some really "simple hacks"! I'll see how I can get that liquid nitrogen into my speakers.

It's so cool that Bluetooth does not transmit any SNR! Those RCA cables are really nasty in that respect, maybe you could treat them cryogenically as well? Do you pour liquid nitrogen onto your bluetooth transmitters or is that not necessary because of the absence of SNR?
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Lol, those are simple hacks for high end (high end sound mostly means breaking your wallet), you can make liquid nitrogen at home, and have a speaker driver even with a poor conductive 3d printed filament coil that has more magnetic flux and sound response than Morel drivers used in magico and other high end speakers. I call that a simple hack and dirty cheap however you can still make a field coil speaker with some copper wire from transformers and an arduino coil winding machine.




Shop - Morel



 
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#39
I'm baffled on just how you'd "simply" make a field coil speaker.

Out of what? An existing speaker? What to do, bust out the existing magnet? What happens to the pole piece alignment then; how could anyone w/o a machine shop full of tools even disassemble w/o damage, then reestablish the tolerances of such a wound coil construction?

Or do you just wind over the top of an existing alnico magnet in the square box to add magnetic strength? Kinds limits the type of driver this would work for. Let's see; 1, 2, 3, ...495, 496 - COVIDs gonna be around for a while - 497, 498 - finally, time for a piece of tape!

I initially bailed from this thread immediately when I read #7. But it's gotten so popular, I just HAD to chime in!
 
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