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TM
pass
INT-150 Owner’s Manual
Aug 27, 2009
1
INT-150 Owners Manual
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WARNING Please keep these instructions and heed all warnings. Use product only for intended function. 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. Power Sourc
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Crush and Tip Hazard: When moving or placing these products use caution to avoid injury from tip-over or fall. Make sure that any stand, cart, table, bracket or tripod used to support this product is weight rated sufficient to the task. Servicing: To reduce the risk of fire, electrical shock or other injuries, the user should not attempt to service the device beyond that which is described in the operating instructions. All other servicing must be referred to qualified service personne
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Introduction Nelson Pass has been designing audio electronics professionally since about 1971, first with ESS (remember Heil Air Motion transformers?), and then forming a new company, Threshold in 1975. Threshold pioneered the design of high power Class A power amplifiers and later, high power amplifiers using only local feedback (the Stasis series). Pass sold Threshold and created Pass Laboratories in 1991, where he concentrated first on elevating single-ended Class A power amplifiers to
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the distortion as identical as possible on both polarities of the balanced output. It is easier to make distortions in the two halves more identical than to remove them with feedback, and this is the operating principle of X amplifiers. Since the X1000, Pass Labs products have continuously evolved toward higher performance. The Class AB “X” series was joined by the Class A “XA” amplifiers. Subsequent improvements to the Class AB “X” amplifiers resulted in the “X.5” products, and their ph
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satisfaction audio product. From a measured and subjective viewpoint this is an outstanding product, we trust you will sit back and listen with a big grin on your face. If you have purchased this amplifier, we thank you for your confidence, and hope that you enjoy it for many years. If you need product service, have any questions or comments, or if we can help you with your audio system, please don’t hesitate to contact us. Setup X topology amplifiers run at about the same power as their
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1) Vacuum Florescent display ; shows operational status. 2) Mute, indicator (Blue LED) 3) Stand-by Power on, indicator (Blue LED) 4) Stand-by Power on, momentary push button (on / off) 5) Mute, momentary push-button (on / off) 6) Input selection buttons (inputs 1-4) 7) IR remote, receiver window 8) Volume control A) Pre-amplifier inputs (1&2 XLR/RCA , 3&4 RCA) B) Pre-amplifier outputs (XLR OR RCA) C) Right Channel speaker connector D) Signal ground connector E) IEC 520 AC power inlet module F)
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For maximum safety we suggest that the power cord should be the last cable installed on your power-amplifier. You may, if you wish, substitute a 15-amp aftermarket power cord for the one we have supplied. Only use polarized power cords, which meet all local safety standards and carry acceptance marks from the local regulatory authority. The power cord should be attached to the amplifier prior to plugging into house power. Always place the rear-mounted switch in the off (down) position
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So the amplifier is sitting there unconnected. Make sure that the rear panel power switch is off (down). Plug the AC cord into the back of the amplifier, and then into the wall. Then turn the power switch on (up). The lights in your house may dim for a moment as the power supply charges the capacitors. Please note that this switch is not a “safety device” or “emergency disconnect” for this product. This switch does not provide personal shock protection in the manner of a ground-fault
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Choose either XLR or RCA inputs. If you run both at once on a single input from different components, the sound is not likely to be optimal, but it shouldn’t cause damage anywhere. Now that the source components and loudspeakers are connected into the amplifier; plug the power cord back into the wall, and turn on the rear power switch. Push the front panel power button to activate the amplifier and turn the volume control down (counter clock-wise). The front panel display should now be
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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
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Speaker cables should be firmly tightened down at the speaker output terminals, but not with a wrench. Output terminals will not withstand the levels of torque that may be easily applied by wrench. Hand tightening without excessive force is plenty. Cleaning contact surfaces with one of the commercially available electronic contact cleaners should be part of your annual system maintenance. So how long should this hardware last? It is our experience that, barring Product Life abuse or th
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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 Labora- tories 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, exclu- sive of subsequent damages. Dam
