pass TM X150.5 Owner’s Manual May 17, 2006 Manual X150.
Introduction The Pass Laboratories ™ X150.5 stereo amplifier embodies the design technology and refinements of the “X” series amplifiers including extensions of the patented Supersymmetry™ circuit. Additionally selected refinements of the XA series amplifiers have been incorporated into the X150.5 to significantly improve this products sonic performance in comparison to it’s immediate predecessor, the Pass Laboratories™ X150. The Supersymmetry™ circuit topology was granted a U.S.
The X.5 Series amplifiers have the tremendous dynamic range (>140 dB) to do justice to the high-resolution digital recordings of the 21st Century and the elegance to retrieve the micro dynamics offered by the most sensitive loudspeakers. The simple but powerful circuitry moves easily from total silence to explosive transient and back to silence without a trace and without information loss.
Setup You can position this amplifier most anywhere you wish, but it requires adequate ventilation. We do not recommend placing it in enclosed cabinets or small closets without means for air to circulate freely. Stacking these power amplifiers directly upon each other is not recommended for the same reason. This amplifier typically idles at slightly more than 250 watts, most of which dissipates as heat across the heatsinks.
Looking at the rear panel you will see the IEC 320 AC power cord receptacle, a mains power switch, two pairs of output connectors, a pair of binding post connectors for remote turn-on, two RCA input connector and two XLR balanced input connectors. Make sure that the mains power switch is off (down). Plug the AC cord into the back of the amplifier, and then into the wall. Then turn the breaker switch on (up). The lights in your house may blink when the power supply charges the capacitors; this is normal.
You are ready to play music Do everybody a favor and try not to have shorted output cables. It happens accidentally all the time, and the amplifier is designed to survive, 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 amplifiers is very low.
Speaker Interface The Pass Laboratories™ X150.5 is optimized for loads nominally rated at 4 ohms and above. You can run the amplifiers into a lower nominal impedance without difficulty, and we are not aware of a speaker on the market that presents unusual difficulty with these amplifiers. The X.5 series amplifiers do not care particularly about the reactivity of the load.
Speaker cables should be firmly tightened down at the speaker output terminals, but do not use a wrench. These connectors will not withstand unrealistic foot-lbs of torque. Hand tightening without excessive force is plenty. Hardware Facts So how long will this hardware last? It is our experience that, barring abuse or the odd failure of a component, the first things to go will be the power supply capacitors, and from experience, they will last 15 to 20 years before needing replacement.
X150.5 Specifications All figures obtained after 1 hour warmup, with regulated 120 VAC power line. See manual notes about AC power line regulation. Gain Freq.
Warranty Information Please check with the factory-authorized distributor in the country you are purchasing this product for specific warranty information. All Pass Laboratories products purchased from an authorized Pass Laboratories dealer in North America are covered by a transferable, limited 3-year warranty. This warrantee includes all parts and labor charges incurred at the repair facility in addition to return shipping to the domestic customer, exclusive of subsequent damages.
For your protection please read the following: Water and moisture: Electrical devices should not be used near water ( as per example, near a bathtub, washbasin, kitchen sink, laundry tub, wet basement or swimming pool ). Care should be taken such that objects do not have the opportunity to fall, and that liquid is never spilled onto or into the device enclosure through openings.
