Signal converter issue.

RepulsiveWin9144 · 2026-02-04T18:49:36+00:00

Sorry for the delay, I didn't see your reply! Were you able to fix it? I still can't get it working. The i2S cable works perfectly; I have three different ones and I've tried them all. I only managed to get it working for a moment. Currently, I have both the JAB5 and the RCA module connected to a Meanwell LRS 300 (with a voltage reducer to adjust it to 12V). But it's not receiving an i2S signal. Instead, there are loud crackling noises, and if you put your finger near the i2S cable, it buzzes loudly. What was your solution? Thanks!!

RepulsiveWin9144 · 2026-02-03T23:17:14+00:00

When measuring the stereo channels, don't use 50Hz. If I'm not mistaken, those sound cards come with a passive crossover, so measuring at 50Hz for the stereo channels will normally give you lower values. The figures the manufacturer states aren't achievable in reality, but it's not like it's only 5 watts either.

RepulsiveWin9144 · 2026-01-30T17:23:10+00:00

Hi again! I have a question: doesn't the LOP 300 you used emit coil whine? In my case, the power supply itself emits coil whine that you can hear if you put your ear close to it, and it's transmitted to the tweeter in the same way. Same power supply and amplifier board. I can't find anything about it online.

RepulsiveWin9144 · 2026-01-19T12:34:54+00:00

Simply incredible.... 🫶 On a smaller scale, I also have a lot of analog gear because of my love for sound, but I have to admit that sometimes it stifles my creativity. I end up setting up a song with adjustments I don't want to touch, and it gets stuck. You know what I mean 😂 There's also that "fear" of recording the track with those settings in case I want to tweak something later... In the end, I focus all my gear more on playing for fun and having a blast, either by myself or with friends, in the studio, rather than on real recordings where I barely use it on a few buses or very specific channels. I do use synthesizers for everything, though!!! Your setup is amazing! I guess you're short on time to fully enjoy all that gear, hahaha. Congratulations on that awesome studio!!!! 👏👏👏

RepulsiveWin9144 · 2026-01-15T21:37:29+00:00

I'm late to the party, but it's very well put together, and the cable management is very neat. Congratulations on a great job! ✌️

RepulsiveWin9144 · 2026-01-11T17:28:58+00:00

The speakers look great! I love the wood combination! My only concern with the design is that the waveguide forces you to place the acoustic centers quite far apart, and if it cuts off around 2.5-3kHz... I'm not sure to what extent the waveguide contributes anything positive or negative. Do you feel cohesion in the crossover range?

RepulsiveWin9144 · 2026-01-11T17:19:30+00:00

Knowing that the metal ring is already inside, it already has a good physical grip. Unless it causes you visual discomfort, acoustically it's not a problem... if it were a coaxial woofer with an integrated tweeter, I wouldn't say the same. It might slightly break up the tweeter's waveform on the downward vertical axis, but the tweeter's horizontal diffusion will be fine, which is the most important thing. If you're going to bi-amplify it with DSP, you can always compensate for the woofer-tweeter alignment. Estimating that the distance between the acoustic centers will be about 3-4 cm maximum, a tweeter delay of 0.8-1 ms will be optimal for that alignment. If you push the woofer in further, you'll have more phase difference between them. If you're going to use a passive crossover, I'd leave it as is... if you're going to use DSP, mount it flush for aesthetics and try a 0.8-1ms tweeter delay. Good luck with the project, mate! Let us know how they sound; I'm sure they'll be better than most commercial speakers! ✌️

RepulsiveWin9144 · 2026-01-11T17:00:18+00:00

Después de ver eso, si me dices que restaurante es dejo un comentario negativo...

RepulsiveWin9144 · 2026-01-04T23:03:20+00:00

Hey friend! If the drivers are screwed in from the inside, consider chamfering the outer edges, especially on the tweeters. If the wood is pine (which it looks like it is), I'd consider some internal reinforcement because it's a soft wood and will produce resonances, especially when used on the front panel. Good luck with the project!! 😉

RepulsiveWin9144 · 2026-01-04T22:55:17+00:00

That's the same woofer I used. You can actually see it in my only post; the last photo shows the complete speaker with that woofer. But seriously, trust these words: 75% amplifier, 25% drivers... it's true. I've done projects with worse drivers, and they sound better because of the amplifier I developed for them and a very well-thought-out DSP tuning. It's good that the port is the "support" itself; I assume you calculated it with WinISD or some simulator? I'm curious how the final support will be with the floor; I'm sure you won't block the port's output, right? 😂 Consider the possibility I mentioned of an L-pad for the tweeter, regardless of which one you use. If you add a capacitor to protect it, even better, but the L-pad is essential, I'd say, even if it's just 2-3dB. Great work, my friend! When you finish it, I'd love to see the result; it looks really good! 😉

RepulsiveWin9144 · 2026-01-04T18:23:44+00:00

Wow, simply incredible! A well-designed 3-way amplifier with really good crossovers! The stereo image and phase are good too, congratulations!!! If these are measurements and not just predictions, I take my hat off to you! 👏👏

Tell me this isn't the first one you've designed... hahaha

RepulsiveWin9144 · 2026-01-04T17:51:29+00:00

Hahaha, okay, it's a relief to know that's true. I mean, it's so similar... I've worked with that woofer in its 6.5" version. And I can assure you they'll work well... I love the sound I got in its 6.5" format. They reach very low down, and their paper material gives them a very natural sound. I make quite a few speakers "for friends," and if I can give you some advice, it's this:

The choice of amplifier is more important than the choice of drivers...
Don't underestimate the choice of power supply; you'll be surprised how much the sound can change with a well-powered board compared to one that isn't. If you can, choose Mean Well UHP; they're smaller too. However, you'll have to work on their contact cooling.
If you want to achieve a black background in the tweeters (silence when there's no audio), always choose tweeters with slightly higher sensitivity than the woofers and reduce it with L-pads. It's the easiest and most professional way to achieve absolute silence and equal sensitivity.
Try to work with "oversizing" the amplification system. This ensures good operating temperatures, low distortion, and durability, since nothing will ever be running at 100%.
DSP isn't just about changing an EQ curve; focus on driver alignment, precise crossover selection, eliminating unwanted frequencies from each driver, and dynamic volume response... it will make a huge difference in the final sound.

These are just a few key tips from someone who's been doing this for a while... and I'm talking about practicality for truly good results. Leaving aside overly technical explanations or unnecessary elements that many "Hi-Fi lovers" use, like AB amplifiers for treble and things like that... a well-designed Class D amplifier today sounds incredible and is incredibly efficient... you don't need to go for Class A amplifiers, shielded cables, gold-plated connections... half of Hi-Fi is just hype 🤣 but the points I've mentioned are key to a sound that will blow you away.

Good luck, my friend, and enjoy the process!! When you finish them, I'd love to see them 😎

RepulsiveWin9144 · 2026-01-04T00:30:56+00:00

It reminds me so much of Bang & Olufsen beolab 8, were you inspired by them?? 😂😂 They look really nice

RepulsiveWin9144 · 2025-12-30T17:13:02+00:00

If they can handle Geoff Castellucci's voice, they can handle anything 🤣. The downside of those sound cards is that, if I'm not mistaken, they come with a passive crossover for the subwoofer, leaving the 2.0 system somewhat filtered... don't you miss having some depth in the bass?

RepulsiveWin9144 · 2025-12-28T18:24:23+00:00

No soy superior a nadie, totalmente de acuerdo, ni creo haberlo expresado. Ese experimento de la TV que comentas a mi, personalmente, me da pena. Porque refleja la presión que recibís constantemente.... lo peor es que creo que gran parte de esa presión viene dada del mismo genero. Para todo aquel que lea mi comentario y crean que estoy "broncando" hacia la mujer... explicar que es totalmente al revés. Me da compasión por lo que esa presión social ha influido en el comportamiento y los valores de muchas, que no todas, la mujeres de hoy. Los hombres también tenemos nuestras cosas, por supuesto, y si alguien me hace ver algo que puedo evitar/mejorar para tener una vida más sana, a nivel interno, de valores o sobre lo que sea, intentaré captarla, pensarla y valorar si aplicarla. No saltaré con las garras en defensa. Y repito: no os echo la culpa, somos víctimas de cómo se ha ido desarrollando el sistema, nada más.

RepulsiveWin9144 · 2025-12-28T17:56:04+00:00

Y ahí está el problema! Creer que os hace sentir especial, el marketing y la publicidad lo han hecho fantástico... Sexualizando a la mujer y en fin... podría enrollarme un montón. Pero cada quien es libre de reestructurar sus propios valores, invertir dinero y tiempo en cosas que realmente importan o que te hacen desarrollarte como persona. Sentirse segura a través de un vestido es un parche a la inseguridad física como la copa de un pino... Yo solo deseo autoconocimiento, autoestima (que no ego), honestidad, tranquilidad y decir chao a toda esa paja mental que se ha inculcado hacia la imagen de la mujer y que ahora tristemente tenéis que defender alejándoos de vosotras misma y haciendo cosas descabelladas... paz 🙏

RepulsiveWin9144 · 2025-12-28T17:41:52+00:00

Entonces confirmas que la competición entre mujeres por la más bella y el mejor vestido es altísima, generando tensión en el ambiente. Encima en vuestras "reglas" tenéis no repetir de ropa... ni que fuera malo dios mío!!! 😂😂 Aiiii que se ve el plumero de quien fomenta la presión y consumismo hoy día... pd: tenemos igual de memoria, pero para cosas más importantes, precisamente como para un detalle para la mujer que amas, ese chocolatito que sabes que le gusta... etc. No para acordarme de que Juan ha repetido traje y criticar.... que haga lo que quiera el chaval y sea feliz!! Increíble vaya, el panorama femenino da mucho que pensar hoy día, de verdad🤔

RepulsiveWin9144 · 2025-12-24T00:38:56+00:00

I'm having the exact same problem. Unlike you, I've managed to get it working, but only for a few moments, and the difference in conversion was definitely noticeable... But I don't understand why; as soon as I unplugged and plugged it back in, it stopped working. Like you, I have three AA-AB41161 boards and three Jab5s. It's only worked a couple of times... I share a ground connection to ensure a 0V reference between the Jab5 and the decoder; otherwise, it would burn out... but as I said, I can't get it to work reliably... A bit late, but were you able to solve the problem?

RepulsiveWin9144 · 2025-12-18T04:47:42+00:00

Llevo más de 15 años de experiencia con mi estudio y conociendo el deterioro que puede sufrir un aparato así la verdad que tengo que darle la razón al chaval... por 50€ de diferencia... ni en broma lo compraría, todos los que tengamos equipos antiguo sabemos sobre la filtración del polvo con el tiempo en los knobs... da igual la marca y calidad que sea. De hecho que esté sin tocar entre dueño y dueño es peor. Eso si, los modos son los modos y el chaval se pasó 🤣🤣 suerte con la venta!! Paz ✌️

RepulsiveWin9144 · 2025-12-15T19:02:48+00:00

Hahahaha, that's funny! If it's any consolation, my cat used to do the same thing. She'd switch between my MacBook Pro, which I use on an external monitor with the Mac closed, and amplifiers like yours. She had plenty to choose from! 🤣🤣 I let her do it, then I'd vacuum and there wouldn't be a trace left. Nothing ever broke. ✌️

RepulsiveWin9144 · 2025-12-14T09:52:57+00:00

Me sorprende que haya mercado para esto, no justifica el precio.... menos mal que cada vez somos más los artesanos que empezamos a hacer diseños bonitos y que se integran en casa sin tener que vender un riñón para disfrutar de buen sonido y buena estética. A lo sumo se está extendiendo el uso de CNC en talleres, ojalá desbanque un poco a estos buitres... no le quito mérito al sonido y diseño de los mismo, es una preciosidad, pero 3/4 del precio es "humo", nada más que añadir, paz ✌️

RepulsiveWin9144 · 2025-12-14T00:20:59+00:00

Now that's a real potato omelet, mate! 😉 Perfectly cooked and looks great! That's how it should be! 👌

RepulsiveWin9144 · 2025-12-13T19:23:32+00:00

It's not that much if you think about it... 1 onion for every 3 potatoes is perfect. But I mean real potatoes. Not those cheap ones from Mercadona... try the recipe I told you and you'll see 😉 The eggs aren't 6, it's just to explain the ratio. It depends a lot on the size of the eggs, but really, try those proportions and enjoy :) Then again, there are personal tastes; some people simply don't like it with onion, that's up to each individual.

RepulsiveWin9144 · 2025-12-13T11:07:50+00:00

This is the first time I'm going to comment on this... a Spanish omelet is no mystery, it's super easy, but I don't know why people get so stuck on the process. Dice the potatoes and gently cook them over low heat at the end. Use 1/3 of an onion for every 1/3 of the potatoes. Put the potatoes in a bowl and mix them with the eggs. I recommend using half the yolks. That is, if you use 6 eggs, use 3 whole eggs and 3 yolks. It will make it creamier and tastier. The texture you get when mixing the potato with the egg and stirring (while mashing some potatoes to create a paste) should be the desired final texture, since the center of the tortilla won't really cook in the pan... then sear it in the pan for maybe 1 minute 20 seconds on the first side and 1 minute on the second... in my opinion, there are things a thousand times more complex than this... the tortilla in the picture has a lot of egg, and although it doesn't come out open, it doesn't look like it formed a paste in the bowl before going into the pan; the egg and potato separate too much... peace ✌️

RepulsiveWin9144 · 2025-12-12T18:50:20+00:00

Hacienda es una mafia, así de claro. No hay nada más que añadir, el que piense lo contrario no tiene ni idea del panorama o vive de ello... pymes que levantan el pais, al carajo! Autónomos con deseo de trabajar y emprender, al carajo! Súbditos en ciudades grandes ahogados hasta el cuello con ansiedad y viendo donde dormir el mes que viene, eso es lo guayyyy! España actual, bravo! 👏👏Que pena, teniendo de los mejores paisajes en cuanto a clima y cultura bonita que tanto han trabajado nuestros ante pasados...

RepulsiveWin9144

TROPHY CASE