Never disconnect lift the mains safety earth

CONTENTS

Once connected to a suitable AC supply, the amplifier can be started with the power switch. When you power up the amplifier it takes a couple of seconds to self check (this is known as the "soft start" or "slow start" sequence), the fans then blow at high speed before going into "idle". The four bottom green LED’s then illuminate to show the amplifier is operational.

6.4Grounding

There is no ground lift switch or terminal on this amplifier. The signal ground is always floating (lifted), with respect to chassis ground via a ground lift resistor. If a potential difference above 0.6V is detected between signal ground and chassis earth, a short circuit is automatically introduced between the two, ensuring electrical protection. If other equipment or amplifiers within a system should develop an electrical fault to earth, the mains fuse on that equipment should rupture due to this automatic system allowing an earth current to flow for protection purposes.

If however you wish to permanently connect the signal ground to chassis earth, connect the XLR- connector’s shell lug to pin 1. In the interest of safety never disconnect the earth pin on the mains cable. To comply with CE approval (radio interference), there is an AC mains filter. This filter needs the chassis ground for reference, otherwise a current loop is formed via the signal ground.

Never disconnect (lift) the mains safety earth.

6.5Power consumption

There are three ways to determine the power/current consumption of the amplifier:

First, the peak current draw at full power output. Under this condition the amplifier will operate for less than 2 minutes before thermally limiting or blowing the mains fuse, and is an unrealistic ‘normal’ use condition. To design a mains distribution system based on the current draw at full power would result in an over specified system. No music program material requires the full steady state continuous power of an amplifier, this operating condition is only valid during amplifier bench testing.

Second, the maximum expected average current under worst case program material, which is 1/3 of full power according to the FTC-standard. At this level normal program music will be in a state of constant clip and is therefore the highest power level that can be achieved without completely obliterating the program material.

Lastly, the "normal operating power", as defined by EN 60065 as a measurement level for approval and testing to this standard. The normal operating power is measured using pink noise, with an average output power equal to 1/8 of full power. The one-eighth power is the maximum level program music can be re-played without continuous amplifier clipping, this corresponds to a headroom of only 9dB's, which is very low for normal program material.


	MAX OUTPUT POWER			MAINS INPUT POWER
			Power	1/3 Power	1/8 Power	Idle
			[W]	note 1	note 2
MA200Q	8 ohms	4x	130	480	300	85
	4 ohms	4x	200	720	470	85
	2 ohms	4x	270	1065	740	85

note 1 Average power with music as program source. The amplifier driven to clip level.

note 2 Normal musicpower with 9dB headroom,IEC standard power rating.

ENGLISH

Martin Audio – MA200Q Amplifier

MA200Q specifications

The Martin Audio MA200Q is a versatile, high-performance amplifier designed to meet the demands of various professional audio applications. Known for its reliability and sound quality, the MA200Q is particularly suited for larger venues, touring, and installations where power and audio fidelity are paramount.

One of the standout features of the MA200Q is its four-channel architecture, which provides flexibility and efficiency. Each channel is capable of delivering 200 watts at 4 ohms, allowing users to drive multiple speakers or configurations easily. The amplifier also boasts a bridged mode, enabling users to combine channels for increased output, which is ideal for larger sound systems.

The MA200Q incorporates advanced Class D amplifier technology, which not only enhances audio quality but also improves energy efficiency. This technology significantly reduces heat generation, allowing the amplifier to operate cool and quietly, even during demanding performances. This means that users can rely on the MA200Q for extended periods without worrying about overheating or performance degradation.

Another notable feature is the comprehensive protection circuitry integrated into the amplifier. This includes short circuit protection, thermal protection, and limiting functions to safeguard both the amplifier and connected speakers from damage. The result is a robust and durable amplifier that ensures longevity in both touring and fixed installations.

In terms of connectivity, the Martin Audio MA200Q offers balanced XLR inputs and both speakON and binding post outputs, providing compatibility with a wide range of sound systems and setups. Its user-friendly design allows for easy adjustments and monitoring, with signal and clip indicators for each channel.

Moreover, the amplifier's compact and lightweight design makes it highly portable, a significant advantage for touring professionals. Even with these features, the MA200Q maintains a manageable weight, allowing for hassle-free transport and installation.

Overall, the Martin Audio MA200Q stands out in the marketplace for its combination of power, efficiency, and reliability. Whether used in live sound reinforcement, permanent installations, or corporate events, the MA200Q delivers a high-quality audio experience that professionals can trust. With features designed to enhance performance while ensuring durability, it remains a go-to choice for those seeking an exceptional amplification solution.