Design Features

The M5 enclosure is a textured black vinyl clad 5/8” thick MDF cabinet with an internal volume of

5.3liters and a front firing slotted port tuning the system to 70Hz. The low frequency character of the M5 follows a classic 4th order Butterworth vented alignment with smooth response extending down well below system tuning. Small panel size and strategically placed internal bracing reduces wall flex- ing and mid-band resonance. High cabinet rigidity also improves low frequency mid-bass coupling.

The M5 tweeter uses a proprietary 25mm silk dome and exponential horn waveguide combination. The 133mm (51/4”) M5 mid-bass driver is a custom designed and manufactured speaker specific to this new Hafler monitor. This woofer uses a polypropylene cone with a nitrile rubber edge for fast, efficient low frequency damping and uniform piston control. The cone’s polypropylene material is mineral loaded and adds the required stiffness to maintain a smooth response character well past the system’s crossover point. The increased cone rigidity also helps minimize inter-modulation distortion (IMD) components. IMD at normal playback levels is not just an audible distraction it’s a contributor to listening fatigue.

The linear characteristic of the multi-rolled flat spider and the nitrile rubber edge also ensures low lev- els of harmonic distortion (THD). High magnetic linearity is achieved by using a long 32mm (11/4”) diameter voice coil set in a computer optimized magnet structure. The 4.2 lb magnet assembly is completely shielded for use near video monitors or other CRT devices. The M5 mid-bass driver is carefully designed and constructed to be both thermally and mechanically capable of handling the 200-watt system power rating.

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Hafler M5 manual Design Features
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M5 specifications

The Hafler M5 is a remarkable power amplifier that has established itself as a favorite among audiophiles and professional sound engineers since its introduction. This amplifier is known for its high-fidelity performance, reliability, and rugged design, making it an excellent choice for both studio and home applications.

One of the standout features of the Hafler M5 is its power output capability, delivering a robust 250 watts per channel into an 8-ohm load. This impressive wattage allows the M5 to easily drive a variety of speakers with different impedances, providing dynamic sound reproduction that captures the subtleties of music while maintaining punch and clarity even at high volumes.

The M5 utilizes advanced Class A/B amplification technology, which combines the advantages of both Class A and Class B operation. This technology not only ensures low distortion but also enhances the overall efficiency of the amplifier, making it suitable for extended use without overheating. The result is a clean and transparent audio output that remains faithful to the original source material.

Another key characteristic of the Hafler M5 is its exceptional build quality. The amplifier features a sturdy chassis that is designed to endure rigorous usage, ensuring long-lasting performance. The internal components are selected for their durability and quality, including high-grade capacitors and transformers which contribute to its robust sound.

The front panel of the M5 is user-friendly, equipped with level controls, LED power indicators, and speaker outputs that facilitate easy connections. Additionally, the M5 is designed with a range of protection circuits, including short circuit and thermal protection, which safeguard both the amplifier and connected speakers from potential damage.

Connectivity options are another aspect where the Hafler M5 shines. It includes balanced XLR inputs alongside unbalanced RCA inputs, providing flexibility for different setup configurations. This versatility makes it suitable for both professional audio environments and high-end home audio systems.

In conclusion, the Hafler M5 is a powerful, reliable, and well-engineered power amplifier that delivers exceptional sound quality. Its combination of high output power, efficient Class A/B operation, robust construction, and versatile connectivity make it an ideal choice for audiophiles seeking to elevate their listening experience, as well as for professionals demanding performance in studio settings. The M5 not only meets but exceeds expectations, remaining a staple in the world of audio amplification.
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