Crown Audio 1201, 2401 Accessories Cooling Fan Options, Input Connectors Option, Filter Cleaning

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Micro-Tech Series Power Amplifiers

5 Advanced Features

and Options

5.2 Accessories

5.2.1 Cooling Fan Options

Every Micro-Tech amplifier has a built-in high- velocity fan that provides optimum cooling. Two optional replacement fan blades are avail- able for special cooling requirments. Crown part C 6594-3 is a quieter, low-velocity fan blade that in many cases can provide adequate cooling. Crown part C 6593-5 is a reverse air flow fan blade which changes the direction of the air flow in and out of the amplifier (not rec- ommended for the Micro-Tech 2400).

Important: The optional replacement fan blades should only be installed by a qualified technician.

5.2.2 Input Connectors Option

The MT-BB is an accessory panel that provides barrier-block input connectors. An MT-BB accessory might be desirable in applications requiring bare wire connections. It can also be used to daisy-chain an input signal from one amplifier to another, just like the MT-XLR.

The MT-BB must be installed at an authorized service center or the Crown factory.

5.3 Filter Cleaning

A dust filter is provided on the air intake to the cooling system (Figure 4.1, letter “B”). If this filter becomes clogged, the unit will not cool as efficiently as it should and may produce lower- than-normal output levels due to high heat-sink temperature.

To remove the filter, use a phillips screwdriver to remove the three screws that hold the front

grille in place. Wash the filter with mild dish- washing detergent and warm water. Be sure to

dry the filter before installing it. ReplacementFigure 5.1 MT-BB Input Panel Accessory filters may be ordered from the factory.

Dust filters are not 100% efficient. So, depend- ing on the local environment, the internal heat sinks of the amplifier will benefit from periodic cleaning by a qualified technician. Internal cleaning information is available from our Technical Support Group.

Operation Manual

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Contents 06/04 Micro-Tech 600, 1200 601, 1201Some models may be exported under the name Amcron 102990-8Important Safety Instructions Output wiringUse only with a cart, stand, bracket, or table European Representative’s Name and Address Safety StandardDeclaration of Conformity Crown International, IncTable of Contents Welcome How to Use This Manual FeaturesUnpacking Your Amplifier Ensure Proper Cooling SetupInstall Your Amplifier You may also stack amps without using a cabi- netShows connector pin assignments for Choose Input Wire ConnectorsOutput Connections Choose Output Wire and Con- nectorsParallel-Mono Mode Wire Your System Stereo ModeBridge-Mono Mode Inputs Connect input wiring to Channel 1 onlyConnect to AC Mains Set Ground Lift SwitchStartup Procedure Set Input SensitivityPrecautions OperationDo Not operate the amplifier with the Odep LEDs turning off Dust Filter Odep Indicators Output Device Emulation ProtectionEnable Indicator Power SwitchInput Sensitivity Switch Rear Panel Facilities Power CordStereo/Mono Modes Switch Reset Switches Micro-Tech 2400 onlyAdvanced Features Options Accessories Cooling Fan Options Input Connectors OptionFilter Cleaning Principles of Operation OverviewCircuit Theory Stereo Operation Circuit Block DiagramParallel-Mono Operation Bridge-Mono OperationSupply and fan are still working TroubleshootingHigh-voltage power supply fuse or breaker has blown Energy reserve for the affected channel is dip- pingSpecifications 120 VAC, 60 Hz Units, Bridge mono mode120 VAC, 60 Hz Units, Parallel mono mode Shippping Weight Power Draw at IdleDimensions Width, Height, Depth Weight 120VAC, 60-Hz units Net WeightAC Power Draw Thermal Dissipation AC Power Draw Thermal Dissipation Micro-Tech Series Power Amplifiers 12/01 WarrantyWorldwide Except USA & Canada Card Number Exp. Date Crown Factory Service InformationVisa Purchase Order for Crown Dealer

MT-601, 1201, 2401 specifications

Crown Audio is synonymous with high-performance amplifiers, and their models 1201, 2401, and MT-601 embody the brand's commitment to quality and reliability in sound reinforcement. Each model caters to different needs, making them valuable assets in live sound and installation applications.

The Crown 1201 amplifier is designed for versatility, providing 120 watts per channel at 8 ohms. This model features Crown's patented "Power Factor Control," which ensures maximum power delivery with minimal distortion and heat generation. The 1201 is lightweight yet rugged, making it ideal for portable applications. It's equipped with comprehensive protection circuitry, including short circuit and thermal protection, safeguarding both the amplifier and connected speakers.

Moving to the Crown 2401, it ups the power with 240 watts per channel at 8 ohms. The 2401 also employs Crown's advanced input circuitry, which enhances audio clarity and reduces noise. Its design includes an intelligent cooling system with variable-speed fans, accommodating demanding situations while ensuring quiet operation. The amplifier's robust build quality and efficient power usage make it a favorite among sound engineers who require both reliability and performance.

The MT-601 is a versatile addition to Crown's lineup, known for its flexibility in various applications. Delivering 300 watts per channel at 8 ohms, the MT-601 features an advanced monitoring system that provides real-time feedback on system performance. This capability allows sound technicians to make adjustments on the fly, optimizing sound quality. The MT-601's lightweight chassis and modern design make it easy to integrate into any setup.

All three models embody Crown Audio's dedication to innovation through technologies such as output peak limiter and gain monitoring, which prevents signal clipping and distortion. They also feature variable-speed cooling fans that adapt based on the amplifier's thermal load, ensuring efficiency without compromising performance.

In summary, Crown Audio’s 1201, 2401, and MT-601 amplifiers showcase the brand’s expertise in delivering powerful, reliable audio solutions. With their unique features, robust build quality, and advanced technologies, these amplifiers meet the diverse needs of both live performance environments and fixed installations, making them an ideal choice for audio professionals.
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