MA-i系列 功率放大器

Amplificateurs de puissance

Power Amplifiers Amplificadores de potencia

 

 

 

 

4

Software Control

 

 

4

Contrôle par

 

 

programme

 

 

4 软件控制

 

 

4

Control del software

Figure 4.6

MA-i Load Monitoring Panel

 

 

Figure 4.6

Panneau de délestage de

 

 

charge MA-i

4.6 Continuous Load Monitoring

See Figure 4.6. The load supervision feature allows real- time monitoring of the load connected to each amplifier channel. When enabled, the MA-i continuously monitors the amplifi er output voltage and current when there is suffi cient output, and calculates the long-term average load impedance. The measured load impedance is compared against the user-defined high and low limits. If either limit is exceeded, the status indicator and, if enabled, the HiQnet Error Reporting functions alert the user of the problem. There are six controls and two indicators for each channel:

Enable: Enables or disables the load-supervision func- tion.

Testing Indicator: This indicator is active when the am- plifi er output signal is suffi cient to allow load impedance calculation and test verifi cation.

Load Status Monitor: Indicates the result of the last test.

Average Impedance Monitor: Reports the actual calculated average load impedance in ohms. Its range is from 0 ohms to 250 ohms.

High Limit: Sets the upper bound above which the system will report a “high” error status.

Low Limit: Sets the lower bound below which the system will report a “low” error status.

Nominal Impedance: Sets the expected average impedance for the connected load. This value deter- mines the output signal level required for the test. This parameter is also used by the average power limiter to determine the expected power threshold.

Report Errors Via Network: Enables Error Report- ing to send an error report via the network so that high and low load conditions are reported to the controlling software.

4.6 Délestage de la charge continue

Reportez-vous à la Figure 4,6. La fonction de délestage de la charge permet un délestage en temps réel de la charge connectée à chaque canal de l’amplifi cateur. Lorsqu’il est activé, le MA-I surveille de manière continue la tension de sortie de l’amplificateur ainsi que le courant lorsque la sortie est suffisante, puis calcule l’impédance de charge moyenne à long terme. L’impédance de charge mesurée est comparée aux limites hautes et basses défi nies

par l’utilisateur. Si l’une ou l’autre limite est dépassée, l’indicateur de statut et, si elles sont activées, les fonctions de signalisation d’erreur de HiQnet, alertent l’utilisateur sur le problème. Chaque canal comprend six commandes et deux indicateurs :

Activer : Active ou désactive la fonction de délestage de la charge.

Indicateur de test : Cet indicateur est actif lorsque le signal de sortie de l’amplifi cateur est suffi sant pour permettre le calcul de l’impédance de la charge et la vérifi cation du test.

Surveillance du statut de la charge : Indique le résultat du dernier test.

Surveillance de l’impédance moyenne : Signale l’impédance de charge moyenne réelle calculée en ohms. Les valeurs sont comprises entre 0 ohms et 250 ohms.

Limite haute : Défi nit la limite supérieure au-dessus de laquelle le système signale un statut d’erreur

« haut ».

Limite basse : Défi nit la limite inférieure au- dessous de laquelle le système signale un statut d’erreur « bas ».

Impédance nominale : Défi nit l’impédance moyenne pour la charge connectée. Cette valeur détermine le niveau du signal de sortie requis pour le test. Ce paramètre est également utilisé par le limiteur de puissance moyenne afi n de déterminer le seuil de puissance prévu.

Signalisation d’erreurs via le réseau : L’activation de la signalisation d’erreur permet d’envoyer un rapport d’erreur via le réseau afi n que les conditions de charge haute et basse soient signalées au logiciel de commande.

Operation Manual Mode d’emploi 操作手册 Manual de Operación

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Crown Audio i Series Software Control Contrôle par Programme, Continuous Load Monitoring, Délestage de la charge continue

MA-12000i, MA-9000i, i Series, MA-5000i specifications

Crown Audio is a renowned name in the professional sound industry, known for pushing the boundaries of audio engineering. Among their distinguished lineup, the MA series provides a powerful solution for audio amplification in various settings, including live performances, installations, and broadcast applications.

The Crown Audio MA-5000i is a robust amplifier specifically designed to deliver high output power and exceptional audio fidelity. With a power rating of 5000 watts, it is capable of driving large sound systems with ease. A notable feature is its i.Series technology, which integrates advanced DSP (Digital Signal Processing) capabilities, allowing users to customize settings, apply crossovers, and utilize EQ adjustments to enhance the audio experience. The MA-5000i also includes an intelligent cooling system, which ensures the amplifier operates efficiently even under heavy loads, providing reliability for long-term use.

Next in the lineup is the Crown Audio MA-9000i, packing a punch with its 9000-watt output capability. This model stands out due to its dual-channel architecture, enabling users to deliver performance to multiple speakers or zones without compromising sound quality. The MA-9000i features an impressive input sensitivity adjustment, allowing for seamless integration with various audio sources. Also, like its predecessor, it comes with comprehensive DSP processing tools that facilitate real-time monitoring and adjustments.

Crown's MA-12000i takes it to the next level with a staggering output capacity of 12,000 watts. This amplifier is engineered for the most demanding audio environments, offering not only power but also outstanding thermal management to maintain performance stability. The MA-12000i employs the patented G0600 output technology, which enhances overall efficiency, reducing heat and prolonging the lifespan of the equipment. Its advanced feature set includes selectable high-pass and low-pass filters, which aid in crafting the perfect audio profile for varying applications.

All models in the MA series share the same commitment to durability and quality. Constructed with high-grade components, these amplifiers are designed to withstand the rigors of touring and installation. The intuitive front panel with clear meter displays and ergonomic controls ensures ease of use for audio professionals. Additionally, built-in network capabilities allow for remote monitoring and control, facilitating a seamless integration into modern audio setups.

In summary, the Crown Audio MA-5000i, MA-9000i, and MA-12000i amplifiers exemplify the pinnacle of audio technology, catering to a wide range of professional applications while ensuring exceptional sound quality, reliability, and performance.