For those that have received and set up their AllInOne amp, I could use some advise.
I gutted an old amp chassis for the new amp and made what I thought were the appropriate connections. The power switch from the old amp was kept. I used the +15VDC auxiliary to power the lamps above the meters. The meters are not yet connected to anything. It powers up fine. But I get distortion and mains hum on both channels.
My assumption is that I dislodged something by soldering the input wires to the input pins. Could that cause the hum?
I saw in the photos from page 30 that the AC input is not earthed, so I followed that.
I guess I should try to get the amp working without the lamps or meters connected in any way first. What else should I check? Twist and reroute the speaker output wires to the right around the board counter clockwise?
Thanks for any suggestions!
I gutted an old amp chassis for the new amp and made what I thought were the appropriate connections. The power switch from the old amp was kept. I used the +15VDC auxiliary to power the lamps above the meters. The meters are not yet connected to anything. It powers up fine. But I get distortion and mains hum on both channels.
My assumption is that I dislodged something by soldering the input wires to the input pins. Could that cause the hum?
I saw in the photos from page 30 that the AC input is not earthed, so I followed that.
I guess I should try to get the amp working without the lamps or meters connected in any way first. What else should I check? Twist and reroute the speaker output wires to the right around the board counter clockwise?
Thanks for any suggestions!
Attachments
Last edited:
For input:
SE mode - B+, center GND, A not connected, D+, center GND, C not connected
balanced mode - B+, center GND, A -, D+, center GND, C -
SE mode - B+, center GND, A not connected, D+, center GND, C not connected
balanced mode - B+, center GND, A -, D+, center GND, C -
If you are interested and Dr. Mordor agrees, I would leave you mine (I already paid him, one of the last). I have sudden expenses and I would gladly recover some money if I can. Let me know.
My build is not going as well as I would like. Doing everything by hand has been difficult. The DAC control and display are not as tidy as I would have liked. Squeezing it all in has been a pain, I had to cut out sections of the VU meters. I can install the front to the case, the DAC and RaspberryPi.
Attachments
Happy New Year everyone, this year instead of arriving under the Christmas tree the drMordor amplifier unknowingly arrived the covid, even if I managed to overcome this violent virus it still left me a lot of muscle pain.
drMordor, as it has been a long time, you can tell us when you will start shipping and which shipping method you will use.
Greetings
drMordor, as it has been a long time, you can tell us when you will start shipping and which shipping method you will use.
Greetings
