I'm almost finished with building the preamp. (Uh...soldering on all the components) like said, (and thanks to zenmod helping to identify it) it's a Aleph L.
Could i use 2200uF caps instead of the 1000uf for ps?
I have some very good capacitors i would like to use. I replaced the 1n4004 with mur's with higher amperage. (Is that a good word lol)
Could i use 2200uF caps instead of the 1000uf for ps?
I have some very good capacitors i would like to use. I replaced the 1n4004 with mur's with higher amperage. (Is that a good word lol)
Ok, the dumb question of the week. (Sorry)
My speakers are very sensitive, about 106+ db.
I read somewhere that the aleph types are determent by the input voltage and the number of output devices. Correct?
If it turns out that i have way to much amplification, could i lower the voltage and thereby decrease power output? Or is it not that simple.
My speakers are very sensitive, about 106+ db.
I read somewhere that the aleph types are determent by the input voltage and the number of output devices. Correct?
If it turns out that i have way to much amplification, could i lower the voltage and thereby decrease power output? Or is it not that simple.
Ultimately, amplification, I.E., music from your speakers, is determined by position of volume pot.
Yes. But i have a little kid running around. So i am thinking of ways to make it "child proof"
So i think i ment gain....
Edit: so if it does happen that my son touches the volume knob..(will learn him not to..but he is 18 months) he will have his hearing
So i think i ment gain....
Edit: so if it does happen that my son touches the volume knob..(will learn him not to..but he is 18 months) he will have his hearing
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Honestly, with 106db speakers, you will always have too much gain. If you have kid issues, place the preamp high up, out of reach.
Yes, also a good one. But want to build in a "fail safe"
While you mention the preamp (aleph l )
With this speakers i could make the gain setting a fixed one? So leave out the switch an set it at 0 db?
(6db is default if i'm correct)
While you mention the preamp (aleph l )
With this speakers i could make the gain setting a fixed one? So leave out the switch an set it at 0 db?
(6db is default if i'm correct)
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Maybe what you need then is a B1 buffer and either an F4 or a Single ended source follower power buffer.
Then the most your speakers will ever see is 2V rms and still plenty loud for your requirements.
Clarify: bigger (higher power output) aleph amp = more output devices and higher supply voltage? (Correct?)
Gain or power...... uhm..... Don't know.
Well like i said, i got very sensitive speakers. I could set the gain of my preamp (aleph l) to 0db. (Good idea?)
Point is zen mod, i don't know how to answer. If i understand correctly 10 watts would already be enough power for these speakers.
gain - ratio of input signal voltage to output signal voltage
so , having 106db/W/m spks , you'll not need much power , even for peak demands
thus - smallest regular Aleph (25W/8R) is enough
also - 106db/W/m suggest that needed voltage/power is small , so any gain in preamp would be waste
conclusion - set aleph L to 0db
so , having 106db/W/m spks , you'll not need much power , even for peak demands
thus - smallest regular Aleph (25W/8R) is enough
also - 106db/W/m suggest that needed voltage/power is small , so any gain in preamp would be waste
conclusion - set aleph L to 0db
why dont you try this test?
www.diyaudio.com/forums/multi-way/204857-test-how-much-voltage-power-do-your-speakers-need.html
I think that your speaker will only need 1 Watt 😀
it depends of source voltage level and position of volume pot
so - presuming 0db preamp's gain ( potent buffer , that would be),if position is anywhere bellow 1 clock it's worthwhile decreasing Aleph's gain , not unnecessary decreasing it's power
if you want to try decreasing the gain in Aleph , post exact schmtc you used and we can tell what resistor values to change
so - presuming 0db preamp's gain ( potent buffer , that would be),if position is anywhere bellow 1 clock it's worthwhile decreasing Aleph's gain , not unnecessary decreasing it's power
if you want to try decreasing the gain in Aleph , post exact schmtc you used and we can tell what resistor values to change
Why not just fit an attenuator to the input ?
When little-un is not a danger and you want a bit more volume you can simply remove it.
When little-un is not a danger and you want a bit more volume you can simply remove it.
It's the schematic in post #1 I was planning to do the latest mod / revision that papa posted....
Do i lose quality by lowering gain?