American made 200W professional solid state amplifier capable of driving just about any speaker load with authority and ease. Comes in a rack mount 19" chassis configuration, with a gorgeous LED output meter in the front that you rarely see anymore. More From Audio Design Associates: "The PF-2502 utilizes the same amplification modules as used ADA's heralded MPA-502 in conjunction with a power supply to support two channels. Both amplification modules and power supply reside in a single chassis. The PF-2502 can be added to an MPA-502 for seven channels of home theater power amplification. Alternately, the PF-2502 can also be used for sound reinforcement in a multi-room system or more basic two-channel audiophile stereo system." Technical Specifications:• 2 Channel Power Amplifier• Balanced And Unbalanced Audio Inputs• 200 Watts Per Channel @ 8 Ohms• 400 Watts Per Channel @ 4 Ohms• 600 Watts Per Channel @ 2 Ohms• 2 Ohm Minimum Safe Impedance• 0.01% Total Harmonic Distortion @ 8 Ohms• Low Voltage Trigger• 3U Fan Cooled Chassis• IC Controlled Slow Turn-On Circuit• Torroidal Power Transformer• 1200 Watts Maximum Power Consumption• 2048 BTU's/Hr Thermal Dissipation• 115 VAC Fuse Value 10A Slow Blow• 230 VAC Fuse Value 5A Slow Blow• 65 lbs, 5.25"H x 19"W x 16.5"D Our Testing Process for Amplifiers (Solid State) at SkyFi:We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. We then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the amplifier to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The amplifier then remains powered on to "burn in" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.Final testing involves pushing actual music thorough the amplifier. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage Kef speakers that we're very familiar with which quickly reveal any discrepancies. Some amplifiers will then move into our listening room where they are tested with our in-house reference speakers of choice. Please click here for detailed specifics regarding our specialized packing process that separates us from the rest. Item Included Original Box No Manual No Remote N/A Cables Yes - Power Physical Condition 8 Working Condition 10
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