PARASOUND A31 only 2 Weeks old. I am selling this for a customer of mine. Like brand new still in the original box. It has never being hooked up.

Mint Condition - Rare Silver Parasound HALO A31 Class A / AB 3 channel amplifier. (Shipped in original box) This renowned dynamo delivers 250 watts per channel with all three channels driven, and its stable at very low impedances, so its compatible with a very wide range of speakers. With its sheer power — and thoughtful circuit design courtesy of Parasounds audio guru John Curl — this amplifier delivers impressive volume, clarity, and dynamics with your surround sound speaker system.Each channel features an unbalanced RCA and a balanced XLR input, with individual gain knobs with a -6/+6dB attenuation range. The amp offers three power-up options: manual, signal-sensing, and 12-volt trigger.Product highlights:250 watts per channel into 8 ohms (20-20,000 Hz) at 0.2% THD with 3 channels driven400 watts x 2 into 4 ohmsdesigned by legendary audio engineer John CurlTHX Ultra2 certified for reference home theater soundhigh-bias Class A/AB amplifier designlarge toroidal transformerfrequency response: 5-100,000 Hz (-3dB)signal-to-noise ratio: 112 dBhandles very low impedances for use with virtually any speakersthree balanced XLR and three unbalanced RCA inputsindividual gain control for each channel (-6/+6dB range)heavy-duty gold-plated 5-way speaker terminalsswitchable turn-on options: manual, signal sensing, or 12-volt triggerdetachable power cordrack mounting ears included Zero blemishes or signs of use. Was added to a custom home theater room that is rarely used.

Downsizing my home theater and no longer need a full system (separately selling Yamaha 5200). Selling my 3 Channel A31 Parasound Amplifier. It has worked perfectly for me providing 250 watts per channel/400w at 4ohm. Parasound no longer makes this model, which is too bad as its been the bullet proof power beast for home theater or hifi music listens. It weighs 65 pounds so shipping will be more expense. It will ship in the original box with a power cord. Local pickup in the Phoenix area is an option. Ill try to upload a video showing it functioning before I disconnected the system. Its worked flawlessly for superb home theater powering my front 3 speakers. Occasionally there is an audible relay click (its done that the 2 years Ive owned it) with all 3 channels working as designed and no shutdowns or protective mode activations. Video will show all 3 channels lighted and working during a loud/power hungry scene :-). From Parasound: A 31 three-channel power amp has the juice to drive them very well. This 65-pound dynamo delivers 250 watts per channel with all three channels driven, and its stable at very low impedances, so its compatible with a very wide range of speakers. With its sheer power — and thoughtful circuit design courtesy of Parasounds audio guru John Curl — this amplifier delivers impressive volume, clarity, and dynamics with your surround sound speaker system.Each channel features an unbalanced RCA and a balanced XLR input, with individual gain knobs with a -6/+6dB attenuation range. The amp offers three power-up options: manual, signal-sensing, and 12-volt trigger.The A 31 uses a Class A/AB power circuit. You dont see an amplifier described that way every day, so lets break down the benefits.Engineers and audiophiles generally agree that Class A designs offer the purest sound, but they tend to run hot and take up a lot of space. As a result, home audio amplifiers often use a compromise known as Class AB, which hands off part of the audio signal to a different set of output transistors at high power levels. AB can sacrifice a bit of signal purity, but it lets the amp run cooler and more efficiently.So this Class A/AB amp operates in pure Class A mode up to a higher power level than most other amplifiers in its price category, before the second set of transistors kick in. The result is a sound thats smoother, less fatiguing, and more natural.250 watts per channel into 8 ohms (20-20,000 Hz) at 0.2% THD with 3 channels driven400 watts x 2 into 4 ohmsdesigned by legendary audio engineer John CurlTHX Ultra2 certified for reference home theater soundhigh-bias Class A/AB amplifier designlarge toroidal transformerfrequency response: 5-100,000 Hz (-3dB)signal-to-noise ratio: 112 dBhandles very low impedances for use with virtually any speakersthree balanced XLR and three unbalanced RCA inputsindividual gain control for each channel (-6/+6dB range)heavy-duty gold-plated 5-way speaker terminalsswitchable turn-on options: manual, signal sensing, or 12-volt triggerdetachable power cordrack mounting ears includedhttps://www.crutchfield.com/S-m7VgdkbYygC/p_313A31B/Parasound-Halo-A-31.html?XVINQ=D74&XVVer=26I&awcr=632344193445&awdv=t&awnw=g&awug=9030073&awkw=dsa-1220694261285&awmt=&awat=&gclid=Cj0KCQjwtamlBhD3ARIsAARoaEz6-UhE9tTfUMiWSU2FiE5eOZnWRolZLVBulJ16mjl_O7jABM7xH5waAl-OEALw_wcB

Mint Condition - Rare Silver Parasound HALO A31 Class A / AB 3 channel amplifier. (Shipped in original box) This renowned dynamo delivers 250 watts per channel with all three channels driven, and its stable at very low impedances, so its compatible with a very wide range of speakers. With its sheer power — and thoughtful circuit design courtesy of Parasounds audio guru John Curl — this amplifier delivers impressive volume, clarity, and dynamics with your surround sound speaker system.Each channel features an unbalanced RCA and a balanced XLR input, with individual gain knobs with a -6/+6dB attenuation range. The amp offers three power-up options: manual, signal-sensing, and 12-volt trigger.Product highlights:250 watts per channel into 8 ohms (20-20,000 Hz) at 0.2% THD with 3 channels driven400 watts x 2 into 4 ohmsdesigned by legendary audio engineer John CurlTHX Ultra2 certified for reference home theater soundhigh-bias Class A/AB amplifier designlarge toroidal transformerfrequency response: 5-100,000 Hz (-3dB)signal-to-noise ratio: 112 dBhandles very low impedances for use with virtually any speakersthree balanced XLR and three unbalanced RCA inputsindividual gain control for each channel (-6/+6dB range)heavy-duty gold-plated 5-way speaker terminalsswitchable turn-on options: manual, signal sensing, or 12-volt triggerdetachable power cordrack mounting ears included Zero blemishes or signs of use. Was added to a custom home theater room that is rarely used.

Mint Condition - Rare Silver Parasound HALO A31 Class A / AB 3 channel amplifier. (Shipped in original box) This renowned dynamo delivers 250 watts per channel with all three channels driven, and its stable at very low impedances, so its compatible with a very wide range of speakers. With its sheer power — and thoughtful circuit design courtesy of Parasounds audio guru John Curl — this amplifier delivers impressive volume, clarity, and dynamics with your surround sound speaker system.Each channel features an unbalanced RCA and a balanced XLR input, with individual gain knobs with a -6/+6dB attenuation range. The amp offers three power-up options: manual, signal-sensing, and 12-volt trigger.Product highlights:250 watts per channel into 8 ohms (20-20,000 Hz) at 0.2% THD with 3 channels driven400 watts x 2 into 4 ohmsdesigned by legendary audio engineer John CurlTHX Ultra2 certified for reference home theater soundhigh-bias Class A/AB amplifier designlarge toroidal transformerfrequency response: 5-100,000 Hz (-3dB)signal-to-noise ratio: 112 dBhandles very low impedances for use with virtually any speakersthree balanced XLR and three unbalanced RCA inputsindividual gain control for each channel (-6/+6dB range)heavy-duty gold-plated 5-way speaker terminalsswitchable turn-on options: manual, signal sensing, or 12-volt triggerdetachable power cordrack mounting ears included Zero blemishes or signs of use. Was added to a custom home theater room that is rarely used.

Parasound HALO A31 3 channel amplifier. Used and in excellent condition. Original double boxes, power cable and amplifier. No issues with amplifier whatsoever. If you have questions feel free to message. Amp was purchased 2 years ago. Kept in cabinet in smoke free/pet free environment. NO INTERNATIONAL shipping!!!!

Immaculate Condition This is a beast of an amplifier which will driver almost any speakers with ease. Enables you to drive your 3 front channels if you wanted to taking the performance level of your surround system to an entire new level. Each of the 3 channels can be switched independently to use either RCA or XLR (fully balanced).   Unlock the sound of your AVR with a top performer (I rate Parasound above and beyond Rotel and Arcam).  It is superb in stereo use only and has been paired beautifully with different B&W which are reputed to be hard to drive.   It uses full class A for the first watts before switching to AB class operation which means that at even low volume the sound is engaging and dynamic. The reserve of power will give you the headroom for amazing dynamic. Grab yourself a fantastic piece of equipment (happy to demonstrate). Continuous power output: 250 watts RMS x 3, 20 Hz - 20 kHz, 8 ?, all channels driven 400 watts RMS x 3, 20 Hz - 20 kHz, 4 ?, all channels driven Current capacity: 60 amperes peak per channel Features: Unbalanced RCA and balanced XLR inputs High bias class A/AB operation 1.5 kVA encapsulated toroid power transformer 98,400 µF power supply filter capacitance DC Servo and relay protection circuits Heavy-duty 24k gold-plated 5-way speaker terminals THX Ultra2 certified Auto turn-on by 12v trigger or audio signal   Net weight: 65 lb/ 29.5kg. Collection only - Original Double Boxed