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General| Channels | 2 |
|---|---|
| Power Output @ 4 Ohms Stereo | 1100W |
| Power Output @ 8 Ohms Bridged | 2200W |
| Total Harmonic Distortion (THD) | < 0.5% |
| Signal-to-Noise Ratio | > 100 dB |
| Input Sensitivity | 1.4V |
| Frequency Response | 20 Hz - 20 kHz |
| Input Impedance | 20 kOhms (balanced), 10 kOhms (unbalanced) |
| Cooling | Forced air |
| Dimensions | 19" x 3.5" x 15.7" (48.3 cm x 8.9 cm x 40 cm) |
Details on preventing electric shock and user safety hazards, including cautionary notes.
Warning against moisture and explanation of safety symbols like lightning bolt and exclamation mark.
Comprehensive warnings about lethal energy levels, ESD, power cord, and heatsink hazards.
Guidelines for qualified technicians, safe operation, and service procedures like power discharge.
Overview of the Pulse Series, introduction to switch mode power supply (SMPS) operation.
Detailed explanation of the amplifier's input stage and the Class A driver circuit configuration.
Description of overall voltage feedback and the symmetrical Siklai follower output stage.
Explanation of the three-slope V-I limiting circuit for output stage protection.
Details on the 'Peak' LED circuit and the protection system involving IC1 and temperature monitoring.
Explanation of the Zobel network, output choke, and output relay for amplifier stability.
Procedure for main module removal and initial checks without applying power.
Steps for performing powered checks, including self-test, fault LED, and DC offset checks.
Procedure for testing the power supply using a DC bench supply and checking SMPS waveforms.
Analysis of SMPS control signals and waveforms from the SG3525 controller.
Examples of incorrect waveforms and likely failure areas in the power supply.
Monitoring SMPS output waveforms from IGBTs and checking current draw.
Verifying SMPS output waveforms after connecting to mains power.
Procedure for powering up the unit using mains isolation transformer and checking startup.
Checking output signals, transistors, and short circuits for channel faults.
Instructions for reassembling boards and performing quick output tests.
Setting initial conditions and performing tests like turn-on delay and DC offset.
Testing amplifier sensitivity with sine waves and bridge mono operation.
Testing slew rate, power output with THD, and noise levels.
Setting switches to standard factory settings after testing is complete.
Details on performing the Portable Appliance Test (PAT) and required settings.
List of resistors for the Pulse 2x650 model, categorized by part number series.
Parts list entries for resistors, fast recovery diodes, and Zener diodes.
List of transistors, including NPN, PNP, IGBTs, and integrated circuits.
Parts list for various types of capacitors, including ceramic, polypropylene, and electrolytic.
Entries for various connectors, audio transformers, and indicator LEDs.
List of wires, cables, screws, nuts, and washers used in the assembly.
Parts list for chassis components, labels, insulation, and thermal interface materials.
List of fuses, fuseholders, ceramic resonators, and RFI filters.
List of resistors for Pulse 2x1100, categorized by part number series.
Parts list entries for resistors and diodes used in the Pulse 2x1100 model.
List of diodes, transistors (NPN, PNP, IGBT), and opto-couplers.
Parts list for integrated circuits, voltage regulators, and CA-series capacitors.
List of ceramic (CC) and electrolytic (CE) capacitors for the Pulse 2x1100 model.
Parts for connectors, audio transformers, and indicator LEDs for the 2x1100 model.
List of wires, cables, screws, nuts, and washers for the Pulse 2x1100 assembly.
Parts for chassis, labels, insulation, fuses, and fuseholders for the 2x1100 model.
List of resistors for Pulse 4x300, categorized by part number series.
Continuation of resistor listings for the Pulse 4x300, focusing on AP series.
Parts list entries for resistors, fast diodes, and Zener diodes for the 4x300 model.
List of transistors (NPN, PNP, IGBT) and integrated circuits for the 4x300 model.
Parts list for various capacitors (CA, CC, CE) used in the Pulse 4x300 model.
List of capacitors and various connectors for the Pulse 4x300 model.
Parts list for ferrite beads, inductors, and audio transformers for the 4x300 model.
List of wire, cables, screws, nuts, and washers for the 4x300 assembly.
Parts for chassis, labels, insulation, fuses, and fuseholders for the 4x300 model.
List of RFI filters and references to manuals for the Pulse 4x300 model.
