Nexo NX241, User Manual

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GENERAL DESCRIPTION
USER MANUAL LOAD1_80
DATE: 30/08/00 12:48
Amplifier gain evaluation
This is used to determine the actual gain of the amp, and adjust for possible temperature drift,
amplifier input potentiometer adjustment or failure of this amp. This value is then compared to the
user-supplied nominal value and used for the displacement and temperature protection.
Remote sense
Line input (–18dB less than the amplifier gain) is possible and allows performing remote sense. At
this time these functions need additional accessories currently under development.
Reset
Holding down the three menu buttons (A, B, !" ) simultaneously will reset the unit. Reset has the
same effect as powering on and off the unit. The unit will mute (hardware) for 5 seconds with all
LED’s on. The unit will then return to the last set-up automatically saved (every 2 minutes).
Resetting the unit from the front panel is useful to change the cabinet family without powering off
and on (Press the three buttons to reset then let go of the swap button to enter into MENU 0). In
that case you will have to keep the A & B Buttons until all LEDs light off. Note that to execute a
download you will have to physically turn the unit off and then back on. (See "Download" page 17.)
Mute/Solo buttons
Front panel, direct access. The Mute (or Solo) mode is selected in the user menu. Please note that
these MUTEs are soft mute and are therefore not operating output relays.
Display & Indicators
User control of all settings is via two menu scroll pushbuttons, an additional assignable pushbutton,
an assignable rotary encoder and a backlit 16*2 character display.
Three LED’s per channel for sense (green), peak limit (red) protects (yellow). Four dedicated LED’s
are situated alongside the associated MUTE/SOLO button.
Two LED’s to indicate input overload and signal clipping into the DSP.
Default screen will pop up after 2 minutes and display the current set-up.
Serial link / Downloader
The unit can be RS232 linked to any PC in order to download new versions of software using a
DOS compatible Downloader program. (See "Download" page 17.)