I have the procedure for alighning the Delta/Omega 2000 input board if anyone is interested. It was very difficult to obtain but has been found. I would like to get it posted in the Discontinued Support section but the Administrator has not answered my message. Hopefully this will be read.
I need some help with the topic of Pink noise from the collective here. Please help me with this issue as it is getting more confusing the more I look into it.
I am Eq-ing my room. I have at my command a Crown RTA-2 and a digital RTA. Both have Pink noise sources. I also just refurbed all the filters in the RTA-2 by replacing the known to go bad tantalum caps and the electrolytics. I have the EQ2 equalizer and the digital RTA has a digital 31 band 2 channel equalizer as well.
I bought a dongle type device that has microphone balanced output of Pink noise which I was going to use to calibrate the RTA-2 filters. I checked it's output and it is sloped 3db/octave. All the other Pink noise sources are flat. Now I know that Pink noise is white noise that has been filtered with a 3db/octave filter but has equal spectral power across the spectrum. So should the output of a Pink Noise source be flat or sloped? The Crown RTA-2 Pink noise is flat in the manual graph and on the digital RTA. and on the Crown RTA-2 it's self. The digital RTA Pink Noise source is flat on it's own RTA and on the Crown RTA-2. The dongle is sloped on both.
I think the device is wrong. The creator/manufacturer insists it is correct. Help! what is going on here?
I ran into a situation. Getting ready to replace caps in three D150A amps and the boards are not like the schematics here on the support page. Can anyone please send me schematics for rev B through E? I will send an email when I hear from anyone. Help! Thank you.
p.s. there are six pots on my board but only four on the schematics.