Dayton Audio DATS Dayton Audio Test System - Manual (Page 2)

Switch to the “Advanced” tab and select “ 2 channel, 16 bit, 44100 Hz (CD Quality) ” as seen below
(left). Next, select the “Levels” tab set the level is set to exactly “1” as seen below (right). These two steps
are critical as DATS will not operate with the default audio settings of maximum level and 1 channel input.
Click the “OK” button once to close the Properties window and then click “OK” again to close the Sound
Control Panel. Disconnect the DATS USB unit from the first USB port and repeat this setup sequence for
each USB port on your PC that you wish to be setup for use with DATS. You should only need to do this
one time as each USB port remembers its own settings separately from the other ports.
4) Raise the Windows volume control to maximum.
From the task bar, raise the Windows volume control to maximum.
5) Launch the DATS application software.
From the Windows “Start” button select “All Programs” then select “DATS”. The DATS software will
launch.
6) Calibrate the test leads.
From the DATS “Impedance Analyzer” menu select “Test Leads Calibration…”. Short the test leads by
clipping them together and click OK to calibrate the software for the test lead resistance. The test lead
resistance should be less than 1 Ohm as seen at the bottom right of the DATS screen. If not, wait a few
seconds and try again…the hardware needs a full 90 seconds to stabilize after power up. If the test leads
should fail to calibrate then select “Impedance Calibration…” under the Impedance Analyzer menu, click
on “Restore Default Calibration” and repeat the test leads calibration procedure.
7) Calibrate at 1k Ohms.
Select “Impedance Calibration” under the “Impedance Analyzer” menu and follow the instructions to
calibrate the system at 1k Ohms using the supplied precision 1% resistor. The software will test the resistor
and plot the results. The calibrated impedance is displayed and the calibration is complete. Verify that the
value displayed in the R(e) field at the right side of the screen is reasonably close to 1000 Ohms. If not,
repeat the calibration procedure making sure the hardware has had a full 90 seconds to stabilize. A
measured value between 950 and 1050 Ohms is expected.
8) Connect the DATS alligator clips to the terminals of the speaker to be tested.
The speaker MUST NOT BE CONNECTED to anything else such as an amplifier, other electrical
equipment or ground. For best results clamp the driver in place and allow adequate clearance for any rear
pole piece vents.
Revised: 5Feb12