Finish Aleph 2 "but questions"

[jeclk]

I am happy,

I have success my blocks Aleph 2.

but I have a question. If one 240 dies, I afraid of the D.C. current in the HP .

1----- know you are a means of protection?

I find that the blocks are very hot.

my heatsinks are large 350x200x40.

2----- should ventilators be put?
😎 😉 🙂

 

[Mad_K]

stay happy!

As long as you can touch the heatsinks you are ok!

Don't worry, the Alephs are industrial designs, and they generally don't ever break!

🙂

 

[Mad_K]

😱

 

[Nelson Pass]

Even if you pop an output, it's very rare to see
speaker damage as long as you fuse the AC line
at a reasonable level.

 

[Peter Daniel]

Re: Finish Aleph 2 "but questions"

I am happy,

I have success my blocks Aleph 2.

but I have a question. If one 240 dies, I afraid of the D.C. current in the HP .

1----- know you are a means of protection?

I find that the blocks are very hot.

my heatsinks are large 350x200x40.

2----- should ventilators be put?
😎 😉 🙂

 

[Peter Daniel]

Re: Finish Aleph 2 "but questions"

I am happy,

I have success my blocks Aleph 2.

but I have a question. If one 240 dies, I afraid of the D.C. current in the HP .

1----- know you are a means of protection?

I find that the blocks are very hot.

my heatsinks are large 350x200x40.

2----- should ventilators be put?
😎 😉 🙂

I shorted the output on my A75 amp once and one IRF230 died. The was no DC on the output, because the primary fuse died as well.😉

 

[BrianGT]

Re: Re: Finish Aleph 2 "but questions"

I shorted the output on my A75 amp once and one IRF230 died. The was no DC on the output, because the primary fuse died as well.😉

I was testing my Jordan JX92s speakers yesterday that I just built, with my leach amp. I haven't totally finished the cabinets yet, so the I just have the wires coming out of the back, and I used banana plugs to hook them up. I moved the left speaker a bit, and I noticed distortion coming from it. I checked the wiring and the banana plugs were intermittingly shorting out. I found that I could short the terminals, and it would get quiet, and then when I unshorted them, it would work just fine again. I guess the protection circuit works. None of my amplifier fuses died (power rails, speaker level or ac line fuse). The dc offset never goes over 10mV.

I guess I will have to be more careful when I finish my Aleph amplifiers...

--
Brian

 

[BrianGT]

top and bottom are not glued on yet and are just sitting on top and bottom to show the finished size.

I got my cardas binding posts from Rodd, which will be going where the holes are where the 12ga wire is coming out of now.

--
Brian

 

[bawang]

Try building one of the many designs for loudspeaker DC protection available in the market. I am using ESP's (Rod Elliott) design with great success, and it does not need a dedicated DC supply!