Hafler P3000, P1500 manual Signal

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SHORT CIRCUIT PROTECTION

Due to the self-protecting properties of the output power MOSFETs, there is no need for sonically degrading voltage and current limiting circuits. To protect the amplifier from problems which may occur in the speaker line there is an overload detection circuit.

In the event of a short in the speaker load or cables, the speaker detection circuit will shut down that

!channel and light the front panel SHORT indicator. If this happens, correct the fault and turn the amplifier off, then back on to reset.

LED INDICATORS

Amplifier operation is monitored internally and each channel has four status LEDs. These indicators can be used for system troubleshooting in case of aberrant behavior.

Signal

Monitors the amplifier output and lights when a signal is present. The SIGNAL indicator

 

is calibrated to activate at an equivalent input voltage of 30mV.

Clipping

Monitors the DRIVE SIGNAL and lights when the drive signal voltage exceeds the

 

maximum for linear operation of the output MOSFETs.

Thermal

Indicates when the thermal protection has shut down the amplifier. This occurs when

 

the heatsink temperature exceeds 90° C.

Short

Indicates when the output overload monitor detects a potentially damaging short and

 

shuts down amplifier operation. After clearing the fault, restore normal function by

 

turning the amplifier off, then on again.

WARM UP

In order to achieve the best sonic performance from the amplifier, we recommend letting it warm up for 1 hour before beginning any critical listening. The amplifier may not deliver its full potential sound quality before this time has passed.

CLEANING AND MAINTENANCE

There is no requirement for regular maintenance on the electronic components of the amplifier. If the case becomes soiled it can be cleaned using a soft cloth and a mild detergent, such as spray window or glass cleaner. If the amplifier is located in a particularly dusty environment cleaning the inside with compressed air or vacuuming every 18 to 24 months is sufficient.

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Contents Trans Declaration of Conformity R F O R M a N C E Specification S Power Cord Protection Power SourcesPower Cord Grounding CleaningConserve EL Manual DEL Propietario LEA LAS InstruccionesCuadros DE Advertencias Siga LAS InstruccionesLire LES Instructions Suivre LE Mode EemploiConserver LE Guide DE Lutilisateur Considérations DE Mise EN GardeService Erforderlicher ReparaturserviceInstsruktionen Lesen Betriebsanleitung AufbewahrenConservate IL Manuale Leggete LE IstruzioniAvvertenze Seguire LE IstruzioniB L E O F C O N T E N T S InstallationOperation Technical ReferenceT R O D U C T I O N Front Panel View Location InstallationInput From Input From SourceH E M a T I C D I a G R a M Removable Center Spread E R a T I O N Signal D L a Y O U T Designator Value P3000U 120VAC, 60HzParts List Modifications for P1500U 120VAC, 60Hz Parts List Modifications for P1500CEParts List Modifications for P3000CE Theory and Operation of transnova Field Service ConsiderationsC H N I C a L R E F E R E N C E Transnova Implementation Circuit OperationOutput Short Protection Calibration Clipping IndicatorWire Color Function Terminal/Size Module ReplacementWhat is Covered Length of WarrantyHow to obtain service or technical support Limit on Implied WarrantiesPage Hafler Division

P3000, P1500 specifications

The Hafler P1500 and P3000 are notable power amplifiers that have earned recognition for their performance and reliability in various audio applications. Both models are designed to deliver high-quality sound reproduction while offering users an array of advanced features that enhance their usability in professional and home audio setups.

The Hafler P1500 is a two-channel power amplifier that boasts a robust output of 150 watts per channel at 8 ohms, making it suitable for driving a variety of speakers with ease. One of its standout features is the intelligent cooling system, which ensures the amplifier operates at optimal temperatures, minimizing the risk of thermal overload. Furthermore, the P1500 is equipped with a high-quality toroidal transformer, which helps to reduce distortion while providing stable power, contributing to the amplifier's overall clarity and dynamic range.

In addition to its power capabilities, the P1500 includes features such as a variable speed fan and comprehensive protection circuitry to safeguard the amplifier from overcurrent and overheating. The user-friendly design includes both XLR and RCA inputs, allowing for versatile connectivity options with professional audio equipment and consumer audio devices alike. The rugged construction of the chassis is designed to withstand the rigors of touring and studio environments, ensuring durability and reliability.

On the other hand, the Hafler P3000 elevates the performance level with a powerful output of 300 watts per channel at 8 ohms. This amplifier is particularly favored in larger audio setups where significant power is required. It utilizes similar advanced technology as the P1500, including sophisticated thermal management systems and high-performance circuitry aimed at keeping distortion levels to a minimum.

The P3000 is recognized for its exceptional headroom and dynamic capability, making it an ideal choice for driving large speaker systems in professional settings such as recording studios and live events. The amplifier features balanced XLR connectors for professional applications, and its dual-level LED indicators provide real-time feedback on performance, giving users essential information on levels and operation status.

Both the Hafler P1500 and P3000 are exemplary models that blend innovative design with high-quality sound performance. Their reputation in the audio community stems from their ability to deliver powerful performance, reliability, and flexibility, catering to a multitude of audio environments from home theater systems to professional sound reinforcement setups. Their enduring popularity reflects Hafler’s commitment to engineering excellence, allowing audio enthusiasts to experience superior sound without compromise.
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