You are ready to play music

X600.5 Owners Manual

Do everybody a favor and try not to have shorted output cables. It happens accidentally all the time, and the amplifier is designed to sur- vive, mostly.

Of course it’s always possible that something could go wrong. If so, don’t get excited, just relax. It’s really aggravating when something like this doesn’t work, we understand, but it will get fixed. We go to a lot of trouble to make products reliable, and the failure rate of our ampli- fiers is very low. This is small comfort to the few, but take it easy and give us a call if you have problems.

People are often interested in how long it takes for these amplifiers to break in. Perhaps a more salient question is how long does it take them to reach their sonic best after turn on. It takes about an hour for them to fully warm up, and this is where we adjust them first. Then we adjust them again and again over a couple of days, keeping the bias and offset in the sweet spot. Our environment is about 23 degrees Centigrade and the heat sinks will rise approximately 25 degrees C. above that, for an average on heat sink temperature of 48 degrees C. Sonically they are at their best when the heatsinks are approximately 50 degrees C.

In your setup the temperature may vary a bit due to line voltage varia- tions and ventilation, but this is not a big deal. You should be able to put your hands on the heat sinks without discomfort for 10 seconds or so. It is normal for the heasink temperature to vary side-to-side and front to back.

The amplifier has a thermal cutout that will disconnect AC power if the temperature exceeds 75 degrees Centigrade. This should never occur in real life.

More things to know

You can remotely operate the stand-by mode by applying 12 volts DC to the single pair of binding post connectors on the rear of the ampli- fier. The positive of the 12 volts DC goes to the red connector. This connection has an actual operating range of about 9 volts to 15 volts at a current draw of approximately 5.0mA. This switching will over- ride the front panel button, so if you want the front panel button to operate, leave the rear connection open.

So much for the most essential information.

6

Page 5 Page 7
Page 6
Image 6
Pass Labs X600.5 owner manual You are ready to play music, More things to know, So much for the most essential information
Page 5 Page 7

X600.5 specifications

The Pass Labs X600.5 is a high-performance power amplifier that has garnered acclaim in the audiophile community for its meticulous engineering and sonic fidelity. Built on decades of research and innovation, this amplifier exemplifies the brand's commitment to creating equipment that enhances the listening experience while maintaining musical integrity.

A standout feature of the X600.5 is its impressive output power of 600 watts per channel into 8 ohms, and an even more formidable 1200 watts into 4 ohms. This level of power ensures compatibility with a wide range of loudspeakers, making it a versatile choice for audiophiles seeking dynamic range and authority in their music playback. With its Class A/B topology, the X600.5 is designed to operate efficiently while delivering the sublime warmth and detail characteristic of Class A amplifiers.

One of the key technologies that sets the X600.5 apart is its fully differential design. This architecture significantly reduces noise and distortion, providing a cleaner and more lifelike sound. This design involves a balanced input stage, which ensures that any extraneous interference is canceled out, allowing only the true musical signal to pass through. This attention to detail results in a deep soundstage and remarkable imaging capabilities, creating an immersive listening experience.

The X600.5 is also equipped with a robust power supply featuring a massive transformer and extensive power storage. This ensures that the amplifier can deliver peaks without strain, providing the transient response necessary for high-resolution recordings and dynamic musical passages. Additionally, the large heat sinks help to keep the amplifier cool during operation, which enhances reliability and longevity.

Cosmetically, the Pass Labs X600.5 exudes elegance with its minimalist design, sleek aluminum chassis, and user-friendly front panel controls. The build quality is exceptional, featuring a solid and durable construction that not only looks good but also contributes to the performance by minimizing resonance and interference.

In summary, the Pass Labs X600.5 is a powerhouse of an amplifier that combines robust performance, innovative technology, and stunning sound quality. It is an ideal choice for serious audiophiles and music enthusiasts seeking to elevate their listening experience to new heights. With its combination of power, precision, and elegance, the X600.5 stands out as a premier offering in the high-end audio market.
Top Page Image Contents