Peter,
Just wondering ... From the numbers that you posted, I think I'm correct to say that you have 6A per rail which equate to 24A for a stereo amp. You are using 30A circuit breakers? For most people we have only 15A circuit breaker to play with. Do we also have to be prepared to hire a electrician (or ourselves since we are DIYers) to install a 30A breaker for the current hungry Aleph-X amp?
Just wondering ... From the numbers that you posted, I think I'm correct to say that you have 6A per rail which equate to 24A for a stereo amp. You are using 30A circuit breakers? For most people we have only 15A circuit breaker to play with. Do we also have to be prepared to hire a electrician (or ourselves since we are DIYers) to install a 30A breaker for the current hungry Aleph-X amp?
When I listen more to this amp, I think it is special and it's really not just another Aleph😉. While Aleph's high frequencies were somewhat laid back, this one's are definitely not. But they also don't hit you like A75's did. There is some kind of effortless to the presentation and in combination with detail and 3-dimentionality, you almost feel that you can touch the performers. It's like the last curtain was removed and it's really hard to imagine how the amp can be further improved. The low extention is also great, with lots of control and bass slam. Top end reminds me of Zen, but with more detail and in face sound.
I'm saying this to get you motivated and see more finished X amps on the forum. This one is truly exeptional and should make even the most discriminating listener happy.
Thank you Mr. Pass
😉 
I'm saying this to get you motivated and see more finished X amps on the forum. This one is truly exeptional and should make even the most discriminating listener happy.
Thank you Mr. Pass
😉
fcel said:
The chassis I'm using, would be good for Aleph 2 monoblocks, so AC draw is similar. It's 6A per channel and 30V rail to rail.
Yes.😎
But remember, it's different chassis, different bias, different output devices, different PS. Almost everything is different.
But remember, it's different chassis, different bias, different output devices, different PS. Almost everything is different.
I was wondering what my Aleph 4 will sound like once it is finished, sometime next month, I hope so.
I have allready spent some money on my new IBM thinkpad T22 than on my new Olympus 5050 camera. Oouchh
aprox $3500CAD
Can't wait to finish my amp. Are you using your main setup yet or still not.?😎
Trigon
I have allready spent some money on my new IBM thinkpad T22 than on my new Olympus 5050 camera. Oouchh
aprox $3500CADCan't wait to finish my amp. Are you using your main setup yet or still not.?😎
Trigon
Member
Joined 2002
hey peter can you post a pic of your speakers from the rear. and A pic of your shop im die'ing to see what it looks like : O ) PWEEEESSEEE
Current calculation
quote "... (for a total of 16 per channel), my source resistors are 0.56 ohm and voltage drop is 0.420V on ea"
Please help me understand this current calculation. From your numbers, doesn't that get you 0.75A via each source resistor which is equal to 12A (DC ... per JoeBob) for 16 devices? Or the current is normally quoted as amps per rail which is 6A for your case?
quote "... (for a total of 16 per channel), my source resistors are 0.56 ohm and voltage drop is 0.420V on ea"
Please help me understand this current calculation. From your numbers, doesn't that get you 0.75A via each source resistor which is equal to 12A (DC ... per JoeBob) for 16 devices? Or the current is normally quoted as amps per rail which is 6A for your case?
wonderful descriptions, Peter
Hi Peter,
I'm listening to Shawn Wessol's AX (can you believe he let me borrow it?) and I have to agree with your assessments. There is a bit of an "edge" to the top end that grabs your attention. I'm only using the amp from 350 hz on up and I'm amazed at the detail in the music. I'm reminded of the nuance you find in vinyl LPs. My CDs are a lot more enjoyable to listen to.
John
Hi Peter,
I'm listening to Shawn Wessol's AX (can you believe he let me borrow it?) and I have to agree with your assessments. There is a bit of an "edge" to the top end that grabs your attention. I'm only using the amp from 350 hz on up and I'm amazed at the detail in the music. I'm reminded of the nuance you find in vinyl LPs. My CDs are a lot more enjoyable to listen to.
John
I took the amp upstairs and I'm using it now with high pass filter at 120Hz (series 0.062u cap) for mids and tweeter. It really shines now. For the coupling caps I'm using silver foil Ultratone and Jensen polysterene in parallel. It took me 3 hours today to decide which caps to use (the other choices were Jensen copper in oil, MIT RTX and Hovland). The caps I chose, sounded different depending on which end was connected to the input, so using two, I had to try 4 different combiantions.😉
Attachments
Re: Current calculation
4 pairs on ea. side, 0.75 per pair (2 devices per pair with the same current), 8 x 0.75 gives 6A.
fcel said:
4 pairs on ea. side, 0.75 per pair (2 devices per pair with the same current), 8 x 0.75 gives 6A.
Re: wonderful descriptions, Peter
Yes, highs seem edgy, but in a positive way. There is nothing there that can bother me.
carpenter said:
Yes, highs seem edgy, but in a positive way. There is nothing there that can bother me.
Member
Joined 2002
hey peter can you post a pic of your speakers from the rear. and A pic of your shop im die'ing to see what it looks like :
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