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XA160.5 Owner’s Manual

pin 3 is inverted (negative) input. Pin numbers are marked on the XLR. If you re-install the jumper incorrectly or leave it lying about, the amplifier will not work properly, and you will be able to tell.

Choose either XLR or RCA inputs. If you run both at once from different components, the sound is not likely to be optimal, but it shouldn’t cause damage anywhere.

Now that the source component is connected, turn the volume all the way down. Plug the power cord back into the wall, and turn on the rear power switch.

Push the front panel button to activate the amplifier. The lights will come on.

With any luck, you can now enter that blissful state, and we won’t expect you back for a while.

It’s always possible that something may go wrong. If so, don’t get excited. We know It’s really aggravating when a product doesn’t work, but it will get fixed, and often it’s something really simple.

We go to a lot of trouble to make products reliable, and the failure rate of our amplifiers 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 interested in how long it takes for these amplifiers to break in. Depending on the resolution of the rest of your audio chain, you may or may not notice any break in of the amplifier beyond the first few hours of operation. You will very likely notice the difference in sonic character between cold and normal operating temperature over the first hour, so we recommend letting these amplifiers warm up before any serious listening.

This generation of amplifiers warms up faster and is more bias-stable during warm up than previous versions, but we still recommend an hour for critical listening. At the factory we adjust the bias and offset values initially and then after warm-up and then again after 48 hours, If necessary. The “sweet spot” is a sink temperature between 50 and 55 degrees C., but this is not critical, and will vary with your room temperature. You should be able to put your hands on the heat sinks without undue discomfort for 5 seconds or so.

The amplifier has a thermal cutout that will disconnect AC power if

1XA160.5 specifications

Pass Labs, renowned for its high-performance amplifiers, has made waves with its 1XA160.5 power amplifier. This product epitomizes the brand's commitment to sonic excellence, technical sophistication, and exceptional build quality. Emphasizing a pure, uncolored sound, the 1XA160.5 offers audiophiles a window into the heart of their music.

At the core of the 1XA160.5 is its innovative single-ended Class A design. This architecture allows the amplifier to deliver a lush and natural sound characteristic, which is the hallmark of Pass Labs’ engineering philosophy. Being Class A means that the amplifier operates in its linear range at all times, resulting in minimal distortion and an incredibly rich audio experience. With a power rating of 160 watts per channel at 8 ohms and 320 watts at 4 ohms, the 1XA160.5 provides ample power to drive even the most demanding speakers.

One of the defining technologies of the Pass Labs 1XA160.5 is its use of a high-current, high-performance output stage. This design allows the amplifier to maintain dynamic control even at high volumes, ensuring that transient peaks are handled effortlessly. Coupled with a robust power supply which features a large transformer and substantial capacitance, the 1XA160.5 guarantees high performance across a wide dynamic range.

Furthermore, the 1XA160.5 is built with an emphasis on thermal management, utilizing efficient heat sinks that allow the amplifier to maintain optimal operating temperatures during extended listening sessions. Its solid aluminum chassis not only adds to its aesthetic appeal but also enhances structural integrity, minimizing microphonics and unwanted vibrations.

The 1XA160.5 amplifier is equipped with a set of balanced XLR and unbalanced RCA inputs, ensuring compatibility with various source components. It also features proprietary circuitry that enhances feedback stability and optimizes distortion performance, contributing to a cleaner, more accurate sound reproduction.

In summary, the Pass Labs 1XA160.5 power amplifier stands as a testament to the brand's dedication to authentic audio playback. With its Class A design, high-current output stage, exceptional build quality, and superior thermal management, it offers audiophiles a compelling option for achieving an unparalleled listening experience. The 1XA160.5 is not just an amplifier; it is a bridge to the emotional core of your music.