Results of the preliminary tests

Here are some screens from our preliminary tests using the hand assembled prototype.

Soon the tests from the machine assembled units will be available.

1 - Loopback (feed the input and read the output)

-20dB@1kHz - ch1

-20dB@1kHz - ch2

-20dB@250Hz - ch1 - low frequency

-20dB@250Hz - ch2 - low frequency

2 - Cross Talk (feed channel A and read channel B):

Crosstalk -20dB@500Hz - ch1-to-2

Crosstalk -20dB@500Hz - ch2-to-1

3 - Floor level (reading of the output with no signal fed to the inputs)

Floor Level - Low frequencies - ch 1

Floor Level - Low frequencies - ch2

Floor level - ch1

Floor level - ch2

4 - Head Phones

Head Phone - 20dB@500Hz loopback

Head Phone - -20dB@500Hz loopback - ch2

Head Phone Crosstalk -20dB@500Hz - ch1-to-2

Head Phone Crosstalk -20dB@500Hz - ch2-to-1

For the sake of comparisons, check out these readings:

1 - MOD Quadra loopback with -20dB@1kHz

It is visually evident the amount of improvement we had in terms of producing an audio card. We have got at least 15dB better

1 - Loopback of the Mackie Onyx BlackJack.

This is the interface I use to feed and read the MOD units and it clearly has an excellent performance.