Toa AX-1000A Operating Instructions Manual

Configuration 1: Internal Mute; INT. Signal Output Chart DIP switch controls which channels mute. All channels respond to Mute command. When System Mute contact closure is received: MODULES: DIP SWITCH POSITION: Output ? TO MIX BUS DIRECT OUT LOGIC OUT 1 2 3 4 5 6 7 8 Mic Mic Mic, mute to 'on' * Mic, mute to 'off ** Aux with Mute Aux with Variable Mute *" Aux Line Matching * Configured to turn 'on' in response to Module Bus mute command ** Configured normally, turns 'off in response to Module Bus mute command *" Variable mute module with ...

Total Harmonic Distortion : Signal to Noise Ratio : Inputs : Input Sensitivity and Impedance : Outputs : Controls : Number of Max. Stacking : Max. Attenuation Level : Attenuation System : Line Voltage : Fuse : Dimensions (W x H x D) : Weight : 20 to 20,000 Hz ±1 dB Less than 0.1 %, at 1 kHz signal input Better than 90 dB, with ail Vol. Min. Better than 77 dB, with Band Pass 20-20,000 Hz, Input Vol. Min., Master Vol. Max. 8 x Input port for TOA 900 Series modules 1 x Link In (stacking) Input ports; 100 mV, Link In; 100mV, 1 x Main output; 8 x Direct outp ...

inputs. NOM = Number of Open Microphones. Most automatic mixers reduce output according to the formula 10 log NOM. When two mic inputs are active, the system gain is lowered 3 dB; when four are active, the output is reduced by 6 dB; etc. TOA's NOM Attenuation circuitry allows adjustment from 0 to 20 log NOM depending on the system specifications. Consequently, installations incorporating the AX-1000A deliver maximum acoustic gain without feed back. 900 Series Com ...

In certain situations, more control over channel Off-Attenuation and system NOM Attenuation is desired. First, set up the input modules. Then choose the specific inputs which need less than 40 dB of Off-Attenuation and adjust the controls accordingly. Finally, select NOM attenuation from 0 to 20 log NOM as required. Set Master Volume appropriate for one channel. In typical operational circumstances, determine proper NOM setting when many mics are gated "on". If feedback does not occur in such a situation, turn NOM control slightly toward 0 logNOM, rete ...

Choosing the Correct Modules Select the combination of Mic and Line inputs to suit the application. All of the input ports are the same, so arrange the inputs according to the logic the operator will use at the site. Most of the time, Standard Mic Modules and Standard AUX Modules will be the proper, economical choice. Reminder: Remove Jumper on any "M" module when used with dynamic or battery-powered condenser mics. This defeats the module's built-in phantom power, reducing the possibility of noises from faulty cables or connectors. Specific Module Applications There may b ...

Logic Output Direct Output Mute Terminals Input Ch. 1 Threshold Adjustment The heart of an automatic mixer is the circuit that determines which inputs should gate on and which inputs should remain off. The AX-1000A does this by comparing constantly and rapidly an individual channel's level and the levels of all the inputs. This adaptive threshold system results in very smooth mixing. Channel threshold determines how easily an input gates 'on'. Once the channel is 'on', the gating circuit incorporates a preset Hold, 200 msec long, to keep the mic channel open b ...