True Dimensional Sound - Harmonic Enhancement

[velo]

LOL you're right! I wonder if this justifies my opening up the thing again.

 

[velo]

The picture in post #11 very clearly shows a connection from input pin 2 to output pin 2 without traversing the switch.

View attachment 109796

Yes, the blue wire.

 

[velo]

The schematic posted above is a little difficult to follow. I think this is how it is connected, which seems really bizarre to me. Pin 2 (hot) is connected straight across? Other than that it would be back to back transformers.

View attachment 109795

Here's a better shot

 

[Rowboat]

Have you tried Room Eq Wizard ?
Its got a good generator section along with FFT, distortion measurement and ossciloscope
Even though it was concieved as a tool for speaker/room measurement its equally applicable to audio path testing .
Best part is its free to use in its entirety ,

I'm getting there, I swear. Just ordered a pencil condenser mic to measure room acoustics. Not looking forward to the inevitable expense of correcting it!

 

[freshtapescent]

…it’s pin-3 hot, guys! Like any well-designed audio gear.

 

[Tubetec]

Dayton audio do a couple of cheap measurement mics , theres a USB version and a regular XLR phantom powered model .
You enter the serial of the mic and then download its unique calibration file and apply it in REW to flatten out the bumps .

 

[Michael Tibes]

I use voxengo span for quick spectrum / distortion analysis, it is free.