miniDSP Ltd, Hong Kong /
www.minidsp.com
/ Features and specifications subject to change without prior notice
18
2.5.2
Reconnect to the plugin
With the connected equipment still turned
off
, apply power to the miniDSP Balanced 2x4 or Balanced Kit.
Reconnect the USB cable if you have removed it. Then click on the
Connect & Synchronize
button again. This
time, be sure to select the
Synchronize
option from the dialog box:
The miniDSP is now in online mode again.
2.5.3
Initial audio check
Power on your connected equipment: first on the input side (e.g. preamp), then on the output side (e.g. power
amps).
Turn the volume on your source and/or amplification down low, and start playing music or a pink noise test
signal. Gradually increase the volume until your hear audio quietly coming from the speakers. Verify that the
plugin is performing the intended function. For example, if you are implementing a two-way crossover, confirm
that the tweeter is playing high frequencies, and that the woofer is playing low frequencies. (If you have a
measurement microphone and software that allows real time spectrum analysis, then by all means use it.)
2.6
F
INE
-
TUNE YOUR CONFIGURATION
With your initial setup running, you can now proceed to fine-tune and optimize your system.
Although there are some applications where you can perform tuning by ear, applications like active crossovers
and subwoofer integration are best optimized with the aid of acoustic measurements. The miniDSP
UMIK-1
is an
ideal accessory for this purpose, and works with any measurement program including the free
Room EQ Wizard
.
For active crossovers
Measure each driver individually, at (typically) a distance of 0.5 or 1 meter (1.5 or 3 feet). Use
these measurements to adjust the parametric equalizer for each driver, and to fine-tune the
crossover (frequency and slope) settings.
