A piece of cloth onside the enclosure will not affect the sound.1) I am making a speaker that must be able to handle the rain. Thats no problem BUT, just to be sure, just to sleep more calm, i would like to glue some fabric to the inside of the speaker case. Material from an old t-shirt or something so just incase there is something strange, like condens, water drop or divine intervention ... the fabric will soak it up (again, the enclosure will be made airtight, this is just for my calm sleep). So .. if i do that, take very thin t-shirt and glue it to inside of enclosure, what effect will that have on the sound ? Will it be huge, will i lose a lot of dB or not ?
But what i dont understand is, why is this resistor such, that 45mA. I can verify that it is working and turns on at 4.2V, i can see the little bugger heat up. But what i dont understand is, why such weak current/resistance ?
No; with the correct voltage charger connected, it will eventually sort itself out - just taking a lot longer than if you had equally charged the cells first. That "full" cell will be bypassed at 65mA and that current will gradually charge the other cells.i need to limit the charging current to 40mA if i want the pack to balance itself.
You have a simple "protection board" with a charging current limit of 25A!!! If your battery cells are powerful enough then the explosion will deafen you.
It is for making a pack with a protection circuit, it is not a charger circuit. Many batteries have a protection circuit built into them then the entire battery is charged from a proper balanced charger circuit. The online store in India does not say or does not know who makes it and say it is 22.2V in one spot and says 25.2V in another spot. Maybe the 25A is a misprint and is actually 2.5A? Maybe the 45mA is actually 450mA? Happy Diwali to them.
Not sure what u mean ?Going back to your original project, instead of removing the pot and replacing it with resistors, why not just remove the knob and hacksaw off most of the spindle? With a little bit more effort you could even give it a screwdriver slot to make it pre-settable.
Well to be honest, i just want that speaker to leave my house cause its driving me nuts. I had to put both full ranges in series cause putting them in parallel made them way to loud and i didnt wanna use resistors to lower their power, i hate wasting battery live. Anyway what i did is connect both speakers in series and put 20uF in series on the + side that goes into amplifier.Since both speakers are 8 ohms, thats 16 ohms together so 20uF is supposed to give me -6dB at 500Hz. We will see if it works or not, i dont even care much, all i care is minimise the distortion the speaker produces under 100Hz when driven to high. Like i said, i just want this speaker to leave the house cause its made my life a living hell. The next one i make, i will make it how i want it to be, not how my friend wants it to be. Its impossible to make a good speaker when a friend says how he wants it to be build, even if it goes against physics ...A speaker resonates. It should be connected directly (or through a coupling capacitor) to the output of a modern amplifier since the extremely low output impedance (0.04 ohms or less) "shorts" away the resonance. Resistance or another speaker in series also spoils the frequency response.
Speakers in series violates the damping provided by the amplifier then you have speakers behaving like resonating bongo drums. Read about Amplifier Damping Factor in Google. One article misprints Ohms and shows W wrongly.
I know that Acid Rock guitar players have speakers in series that are driven from an old vacuum tubes amplifier that has a fairly high output impedance but they like the Baddd bonging and spoiled frequency response effects.
EDIT: I forgot to say that using a series capacitor to cut low frequencies should be at the input of an amplifier, not at the output where it affects damping. But a speaker crossover network is different
Hi, sorry for necroposting, but I'm interested in the ability to make a mono / stereo switch. I didn't create a new topic because I just need an answer whether such a connection will be correct. And if this option is correct, then it can help future readers of this topic.I show the two resistors and a jumper wire to convert stereo to mono.
The volume control had an on-off switch that I show as a jumper wire.
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