Nexo GEO T - Manual (Page 48)

Page 48/67 GEO T T ANGENT A RRAY S YSTEM C HECK L IST
6 GEO T T
ANGENT
A
RRAY
S
YSTEM
C
HECK
L
IST
It is essential to execute all these check steps prior to perform a sound check on the “front end” to the
system. Following this checklist step by step will prevent many troubles and will save time in the end.
6.1 Are the NX242 Digital TDcontrollers properly configured?
IMPORTANT
If you must change any of the parameters listed above, make sure that you use the same
values on all NX242’s.
6.1.1 NX242 Load 2.13 and below
Freq. Band Gain Global Gain Amp Power Delay Sense Gain Array EQ Headroom
HF 32 dB 0 dB 1350 Watts 0 ms 0 dB 0 dB 5 bars
LF (rear) 32 dB 0 dB 2600 Watts 0 ms 0 dB 0 dB 5 bars
MF/LF (front) 32 dB 0 dB 2600 Watts 0 ms 0 dB 0 dB 5 bars
CD18 Sub 26 dB 0 dB 2000 Watts 0 ms 0 dB 0 dB 5 bars
6.1.2 NX242 Load 2.14 and above
Freq. Band Gain Global Gain Amp Power Delay Sense Gain Array EQ Headroom
HF 26 dB 0 dB 1350 Watts 0 ms 0 dB 0 dB 5 bars
LF (rear) 32 dB 0 dB 2600 Watts 0 ms 0 dB 0 dB 5 bars
MF/LF (front) 32 dB 0 dB 2600 Watts 0 ms 0 dB 0 dB 5 bars
CD18 Sub 26 dB 0 dB 2000 Watts 0 ms 0 dB 0 dB 5 bars
6.2 Are the amplifiers properly configured?
IMPORTANT NOTE FOR BRIDGE MONO MODE OPERATING AMPLIFIERS
• Bridged mono operating mode adds 6 dB voltage gain.
• Phase relation from amplifier input to output 1(+) and 2(+) has to be checked.
6.2.1 NX242 Load 2.13 and below
Freq. Band Mode Gain Switch Limiter High Pass
HF Stereo 32 dB None None
LF (rear) Bridged Mono 26 dB* None None
MF/LF (front) Bridged Mono 26 dB* None None
CD18 Sub Stereo 26 dB None None
6.2.2 NX242 Load 2.14 and above
Freq. Band Mode Gain Switch Limiter High Pass
HF Stereo 26 dB None None
LF (rear) Bridged Mono 26 dB* None None
MF/LF (front) Bridged Mono 26 dB* None None
CD18 Sub Stereo 26 dB None None
6.3 Are the amps and the NX properly connected?
Check that the sense LEDs on the NX242’s used for the full range Tangent Array Modules are
connected properly by applying a signal to the corresponding output and verifying that the correct
Sense LED illuminates.