Crown Audio 2400 service manual Voltage Conversion

Page 7

Micro-Tech 2400 Amplifier Service Manual

Voltage Conversion

The 120 Volt 60 Hz version, sold in the United States, is not voltage selectable. It does not have a voltage selection board. This version is to be used only with 120 Volts and only with 60Hz.

All other versions of the Micro Tech 2400 use a volt- age selection board. The following chart indicates different configurations of jumpers for different volt- ages. Note that the circuit breakers, fuse and transmotor may need to be changed to accommo- date different voltages. Versions with the voltage se- lection board may be used at 50 or 60 Hz.

		VOLTAGE SELECTION BOARD


		100V	120V	200V	220V/230V	240V

		P8—B	P8—A	P8—B	P8—B	P8—A
	Jumpers	B—E	A—D	C—E	C—D	C—D
	Jumpers	P9—F	P9—F	P9—F	P9—F	P9—F
		P9—F	P9—F	P9—F	P9—F	P9—F
		C—F	C—F

	Circuit Breakers	C 9508-0			C 8041-3
	CB100/CB200	15 Amp			7.5 Amp

	Fuse	A10285-10			A10285-7
	F1	1 Amp			.5 Amp

	Transmotor	H43068-8	H43407-8		H43408-6
	TF1	H43068-8	H43407-8		H43408-6
	TF1


Note: "P" locations are on the Fuse Board

Image 7

Contents MICRO-TECH-2400 Avis Table of Contents Introduction WarrantyScope Parts Information Power SpecificationsVoltage Conversion Front END Operation FeaturesTheory OverviewVoltage Translators Voltage AmplificationGrounded Bridge Topology Last Voltage Amplifiers LVAsLow Side LS High Side HSOutput Device Emulation Protection Odep Positive Electrical Checkout Procedures Test 8 Level Controls Test 7 Phase ResponseTest 12 Output Power Test 6 Voltage GainTest 15 LF Protection Test 16 Signal to Noise RatioPost Testing Test 14 Odep LimitingSupplimental Items Parts List Non-ModulePower Supply Output Assembly ONE PER ChannelBack Panel Assembly Output Assembly CONT. ONE PER ChannelChassis Front Assembly Miscellaneous Main Chassis AssemblyFuse Module Module InformationModule History Main ModulesResistors M46330-3 Fuse Module & Q43327-8 Display Module Parts ListDiodes LedsTransistors Q43354-2 Output Module Parts List P10429-2 BoardCapacitors InductorsQ43328-6 MT-2400 Original Main Module Use Schematic J Q43328-6 Main Module Parts List D8679-9 BoardResistor Networks Q43328-6 Main Module Parts List Cont. D8679-9 BoardTest Points SwitchesQ43328-6 Main Module Parts List Cont. D8679-9 Board Q43399-7 MT-2400 Main Module Use Schematic J Q43399-7 Main Module Parts List D8827-4 BoardQ43399-7 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.