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Output Impedance | 75 Ω |
---|---|
Maximum Output Level | +26 dBu |
Frequency Response | 10 Hz to 50 kHz |
Input Impedance | 1.2kΩ (mic), 10kΩ (line) |
Power Supply | External PSU |
THD+N | <0.1% |
EQ Type | 4-band |
High Frequency EQ | +16 dB to -16 dB at 12 kHz |
Notch Filter | Yes |
Noise | -90dBu (unweighted) |
High Mid Frequency EQ | ±15 dB at 3 kHz to 6 kHz |
Low Mid Frequency EQ | 80Hz - 1.2kHz, ±15dB |
Diagram showing the physical placement of components on the module.
Overview of the 1081 Channel Amplifier's purpose and key features.
Detailed view and labeling of the amplifier's front panel controls and indicators.
Toggle switch for selecting microphone input impedance levels.
Preset potentiometer for fine-tuning equalization calibration between channels.
Dual concentric control for high-frequency roll-off and response shaping.
Controls for adjusting presence frequencies and damping characteristics.
Control for adjusting low-frequency response with peak/shelf options.
Switch for selecting high-pass and low-pass filter roll-off points.
Controls for EQ bypass, Solo function, and Tone activation.
Detailed diagram and wiring for the sensitivity adjustment switch.
Detailed diagram of the treble frequency selection and boost/cut switch.
Detailed diagram for the presence frequency adjustment switches.
Detailed diagram for the HP/LP filter selection switch.
Detailed diagram for the bass frequency selection and boost/cut switch.
Wiring diagram and connections for the main motherboard.
Reference to specific PCB assemblies used in the unit.
Circuit and layout for the BA306 dual voltage follower module.
Circuit and layout for the BA338 plug-in amplifier module.
Circuit and layout for the BA340 output amplifier module.
Circuit and layout for the BA451/1 EQ relay/flip flop module.
High-level functional block representation of the amplifier system.
Detailed schematic of the primary amplifier circuitry (EX 10312).