Alesis prolineardsp Manual Do Utilizador

 

 

The ProLinear DSP offers three methods of  control: 

 

•  the front panel buttons and LCD  

•  the PC software  

•  the Input Level control on the rear panel  

 

Through these controls the following functions are managed: 

 

•  Volume 

Frequency 

•  Parametric EQ   

Gain 

Q 

•  Speaker ID/Channel assignment 

•  Input Level monitoring 

 

Volume 

 

Volume is controlled in two ways: by the rear panel Input 

Level control and by the Gain Trim parameter accessed from 

the front panel (see the Program Mode description in this 

section).  

 

The Input Level control adjusts the signal level going into the 

Integrated DSP Module. Setting this too high could result in 

distortion, and setting it too low could result in unnecessary 

noise or loss of  resolution.  

 

The Gain Trim parameter adjusts the output gain from 

the Integrated DSP Module into the amplifiers, and can 

be adjusted within a range of  -18dB to +17dB. The 

same care must be taken when setting this level so as to 

avoid distortion and noise.  

 

Parametric EQ  

 

The ProLinear DSP has a four-band parametric equalizer 

that allows a great deal of  flexibility in “voicing” the speaker 

(setting its tonal balance). Each of  the four bands of  the 

equalizer consists of  three settings: frequency, gain and Q.

 

 

•  Frequencies can be set in 1/6th octave increments 

within a range of  20Hz-20kHz. 

 

•  Gain adjustments may be made for each band

 

within 

a range of  –12dB to +6dB. The changes from -10 dB 

to +6dB are made in 0.1dB increments, while the 

changes from –12dB to -10dB are measured in 1 dB 

increments. 

 

•  Q values (the frequency range covered by a band) 

range from 0.25 to 4.00 octaves. It is possible to 

manually select Q values of  HSH (high shelving), 

LSH (low shelving) HP (high-pass filter). For 

definitions of  these settings, see page 27.