Crown Audio 2400 service manual Positive

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Micro-Tech 2400 Amplifier Service Manual

Theory

 

 

 

 

 

POSITIVE

 

 

 

+VOLTAGE

+LVA

HIGH SIDE

 

 

 

TRANSLATOR

-1

OUTPUT

 

 

 

 

 

NPN STAGE

BGS

 

VGS

ERROR

 

 

 

AMP

 

 

 

 

 

 

 

 

 

 

OUTPUT

 

HIGH SIDE

BALANCED

 

 

DEVICE

 

-1

 

 

BIAS

 

EMULATION

 

INPUTS

 

 

 

 

 

SERVO

 

 

PROTECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-LVA

NEGATIVE

 

 

 

-VOLTAGE

HIGH SIDE

 

 

 

TRANSLATOR

-1

OUTPUT

 

 

 

 

 

PNP STAGE

 

 

 

 

MAIN NEGATIVE FEEDBACK (NFb) LOOP

 

 

 

 

 

POSITIVE

 

 

 

 

 

LOW SIDE

 

 

 

 

 

OUTPUT

 

 

 

 

 

NPN STAGE

 

 

 

 

 

LOW SIDE

 

 

 

 

-1

BIAS

 

 

 

 

DIODE

 

 

 

 

 

 

 

 

 

 

STRING

 

 

 

 

 

NEGATIVE

 

 

 

 

INVERTING

LOW SIDE

 

 

 

 

BRIDGE

OUTPUT

 

 

 

 

BALANCE

PNP STAGE

Figure 3. Typical Crown Amplifier Basic Block Diagram (One Channel Shown)

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Contents MICRO-TECH-2400 Avis Table of Contents Warranty IntroductionScope Parts Information Specifications PowerVoltage Conversion Features TheoryOverview Front END OperationVoltage Amplification Grounded Bridge TopologyLast Voltage Amplifiers LVAs Voltage TranslatorsHigh Side HS Low Side LSOutput Device Emulation Protection Odep Positive Electrical Checkout Procedures Test 7 Phase Response Test 12 Output PowerTest 6 Voltage Gain Test 8 Level ControlsTest 16 Signal to Noise Ratio Post TestingTest 14 Odep Limiting Test 15 LF ProtectionParts List Non-Module Power SupplyOutput Assembly ONE PER Channel Supplimental ItemsOutput Assembly CONT. ONE PER Channel Back Panel AssemblyChassis Front Assembly Main Chassis Assembly MiscellaneousModule Information Module HistoryMain Modules Fuse ModuleM46330-3 Fuse Module & Q43327-8 Display Module Parts List DiodesLeds ResistorsQ43354-2 Output Module Parts List P10429-2 Board CapacitorsInductors TransistorsQ43328-6 Main Module Parts List D8679-9 Board Q43328-6 MT-2400 Original Main Module Use Schematic JQ43328-6 Main Module Parts List Cont. D8679-9 Board Resistor NetworksSwitches Test PointsQ43328-6 Main Module Parts List Cont. D8679-9 Board Q43399-7 Main Module Parts List D8827-4 Board Q43399-7 MT-2400 Main Module Use Schematic JQ43399-7 Main Module Parts List Cont. D8827-4 Board TP1 TP2 U103A U203A Open

2400 specifications

Crown Audio is a well-respected name in the audio industry, known for its powerful and reliable amplifiers. Among its notable products is the Crown Audio 2400, a high-performance amplifier that has garnered attention for its impressive range of features and technologies.

The Crown 2400 is part of the XTi series, which is renowned for delivering exceptional sound quality and performance. A key feature of the 2400 is its innovative Class-I technology. This design allows the amplifier to remain highly efficient while producing substantial power output, making it suitable for a variety of applications, from live sound to installation settings. With a power rating of 2400 watts per channel at 4 ohms, the XTi 2400 provides ample power for driving multiple speakers, ensuring that audio can fill even the largest spaces.

Another standout characteristic of the Crown 2400 is its built-in DSP capabilities. This onboard digital signal processing allows users to tailor the audio output to their specific needs. The DSP features include adjustable crossover settings, EQ adjustments, delay settings, and limiting functions, all accessible through an intuitive LCD interface. This user-friendly design enables quick adjustments in real-time, which is critical in dynamic live performance environments.

The amplifier also boasts advanced connectivity options, including both XLR and 1/4-inch input connectors, allowing for versatile integration with various audio sources. Additionally, the inclusion of Speakon outputs provides secure and reliable connections to speakers, minimizing the risk of accidental disconnects during performance.

Thermal management is another area where the Crown 2400 excels. The amplifier is equipped with a comprehensive cooling system, which includes a variable-speed fan and extensive heat sinking. This design ensures that the amplifier operates efficiently even under heavy load, prolonging its lifespan and maintaining optimal performance.

Finally, the Crown Audio 2400 is designed with durability in mind. Its rugged construction makes it suitable for the rigors of touring and demanding live environments, reinforcing Crown's commitment to quality and reliability.

In conclusion, the Crown Audio 2400 stands out as a powerful and versatile amplifier, offering Class-I technology, robust onboard DSP, excellent connectivity options, advanced thermal management, and durable construction. These features make it an ideal choice for audio professionals seeking reliability and high performance in their sound systems.