Celestion, on building guitar cabinets

Content   September 16, 2011 A 1×12 comboAs guitar speakers are different, so their cabinets are different. The box design is acoustically less critical than that for hi-fi or PA systems, but proper construction is essential. Primarily, the cabinet is a convenient way of housing the speaker, so it should be solidly built to ensure … Read more

“The most expensive mess I’ve ever seen” — Brooklyn’s only headphone tree

Steve Guttenberg Audiophiliac Steve tours his three systems, and shows off the newly expanded listening space. And talks about bluesman Cecil Barfield. https://www.youtube.com/watch?v=haNCst3p0p4   Steve Guttenberg, also known as the Audiophiliac, is a well-known figure in the audiophile community, recognized for his contributions to the world of high-fidelity audio through reviews, analyses, and discussions about … Read more

Timbre vs Tone — One guy on internet demystifies “guitar amp tone”, showing it almost wholly concerns EQ settings and internal circuitry

(( Do not miss the microphone comparison, speaker cabinet comparison, string comparison, etc linked at the end of this post, which are all equally revelatory. )) From video comments — ”I am just a performer, I know nothing about circuits but in one summer I reversed engineered the whole guitar industry and made it open … Read more

DML Speakers so good — panels of acoustic ceiling tile and extruded polystyrene

Listen to the positive responses of listeners.  Almost as good as headphones as the ultimate standard; however, this was not A/B tested.  Also it would be nice to see EQ / response curves. https://www.youtube.com/watch?v=GslJ8Hf4WwE Distributed Mode Loudspeakers           ===   Distributed mode loudspeakers (DMLs) are a type of speaker technology that … Read more

Measuring DIY Speakers — ported / sealed — insulated / not — plastic fiber concrete boxes — Room acoustics, treatments

https://www.youtube.com/watch?v=jjZHFIdfUFk   Helium gas inside enclosure.  Overall +2dB gain as speaker back-pressure is reduced.     Anechoic chamber response — blue/purple is speaker-forward facing; red is speaker-rear facing (into absorptive lining).     Ported vs Sealed.  Ported gives overall more bass output (+5dB), all other factors approximately equal.  Green is ported; blue/purple is sealed.   … Read more

The indefatigable Preston Nichols explains what not long ago was “the next step in digital sound” on this planet

https://www.youtube.com/watch?v=RbwvqVh-qWE “It’s true, [vacuum tubes sound better than transistors] because the vacuum tube produces…life energies.” — 37:45 in   From the comments — “…I saw tapes of Preston at a Tesla society  conference. With scientists in the audience he was able to break down quantum psychics formulas on a black board from memory. Some of … Read more

TOP 10 SONIC TORTURE SONGS FROM GITMO — Psychosonic Drugs – Psychosonic Attacks – Weaponizing Lady GaGa (or any artist / MP3)

You’ll learn how different mental states can be created using frequencies that interact with the brain, how the military is using this attack vector, how Vegas uses these same techniques on customers, which open source software creates these frequency generated psychic states and sites so you can continue your adventures in psychosonics. Multiple new attacks … Read more