OMG!! ", - Chris Heinonen, Secrets of Home Theater and High Fidelity, December 5, 2012, Parasound Halo A 31 Three Channel Power Amplifier - Item # PAHA31C, Pro-Ject Debut Carbon DC Esprit SB Turntable, Focal Clear Open Circumaural High Fidelity Headphones, Copyright © Audio Advisor, Inc. 1981-2021, Parasound Halo A-31 3-Channel Amp Manual (PDF Format), 2019 Parasound Halo Product Line Brochure (PDF Format), Parasound Halo A 31 Three Channel Power Amplifier Product Reviews, 250 watts x 3 @ 8 Ohms / 400 watts x 3 @ 4 Ohms, Adjustable gain for up to +6db over THX Reference level, Circuitry designed by legendary John Curl, Direct coupled (no capacitors or inductors in signal path), Complementary MOSFET driver stage and JFET input stage, 24 beta-matched 15 amp, 60 MHz bipolar output transistors, 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel, 98,400 µF power supply filter capacitance, AC present, channel status, high temperature indicators, Heavy-duty 24k gold-plated 5-way speaker terminals, Auto turn-on by 12v trigger or audio signal, 4u Chassis, carry handles, rack mounting adapter included, Parasound 5 year parts, 5 years labor warranty (USA purchases only), Power output: 250 watts RMS x 3 continuous, 20 Hz - 20 kHz at 8 ohms; 400 watts RMS x 3 continuous, 20 Hz - 20 kHz at 4 ohms, Current capacity: 60 amps peak per channel, Frequency response: 5 Hz - 100 kHz, +0/-3 dB at 1 watt, Total harmonic distortion: <0.2% at full power, <0.03% at typical listening levels, Signal-to-noise ratio: >112 dB, input shorted, IHF A-weighted; 102 dB, input shorted, unweighted, Interchannel crosstalk: >78 dB at 1 kHz, >63 dB at 20 kHz, Input sensitivity (for 28.28 V output into 8 ohm): unbalanced 1 V, balanced 1 V per leg, Power consumption: standby, <1 watt; maximum, 1800 watts, Dimensions: 17.5" wide, 19.125" deep, 7" high (7.625" with feet), Manufacturer's limited warranty: 5 years parts, 5 years labor. © Parasound Products, Inc. All right reserved. This is ideal for the music lover who is unwilling to compromise stereo reproduction. Samsung Galaxy A31 in … It was purchased several weeks ago, so is basically a NEW amplifier. "Based on circuitry developed by John Curl for the highly praised Halo JC 1, the three-channel A 31 power amplifier is rated to deliver 250Wpc into 8 ohms or 400Wpc into 4 ohms. Features The Halo A 23+ stereo power amplifier ($1495 USD) measures 17.25”W x 4.2”H x 15.25”D and weighs 27 pounds. You might also want to use the A 31 to power the center channel and two surround channels of your home theater. By staying out of the way and letting me enjoy the music, the A 31 made this review a challenge to find new ways to say that it sounded wonderful. Circuitry designed by legendary John Curl. This is evident with the release of the new Parasound A 21+ stereo power amp ($3150), the successor to the A 21, which was originally launched in 2003. I consider the Halo A 31 to be one of today’s best values -- if not the best value -- in a power amplifier. > 63 dB at 20 kHz, Input sensitivity: "The Halo A 31 is a wonderful amplifier. The Parasound Halo A 31 was designed in response to increasing demand for a three-channel power amplifier that holds nothing back in power or performance. ", Secrets of Home Theater and High Fidelity Specs. 60 amperes peak per channel, Power bandwidth: Features 6.4″ display, MT6768 Helio P65 chipset, 5000 mAh battery, 128 GB storage, 8 GB RAM. "Doing so has proved that extremely high performance-per-dollar is still possible today when a company leverages decades of experience, and is spearheaded by a legend." "In fact, it performed so well I let Parasound know I'll be paying for it and keeping it as my reference amp going forward.". Optional brackets are available for This gives the greatest power to the front channels where it is needed the most. This is the Parasound Halo A31. Parasound has nothing to hide here as these are real numbers supported by A21+'s capability of delivering 60 amperes of current per channel, the ability to deliver this power through the amplifier's full band-width, and a low <0.1% Design and Setup of the Parasound Halo A 31 Power Amplifier Offering the same 250 WPC into 8 ohms and 400 WPC into 4 ohms that the A21 and A 51 do, the A 31 makes an ideal mate for your front three speakers without having to spend money on … Even Halo's implementation of its automatic turn-on feature is exceptional. I now also have a A31 … The component under review, the $2000 Halo A 21 stereo amp, is slotted in further down the Parasound line. The A 31 boasts balanced inputs with discrete circuits and XLR connectors. Still, the slightly curved, anodized front panel lends it a degree of flair. The remaining surround and back channels can be driven by the receiver. Firm and extended bass. Here's one more suggestion. • 385 watts rms per channel into 4Ω, all channels driven. All Parasound Halo series power amplifiers have balanced inputs with XLR jacks so you can take full advantage of their inherent noise reduction capability. Save parasound a31 to get e-mail alerts and updates on your eBay Feed. < 0.2 % at full power, IM distortion: balanced 16 V rms Continuous power output: The 1.5 kVA encapsulated toroidal power transformer with independent secondary windings for each channel and 98,400 µF power supply filter capacitance delivers an impressive current capacity of 60 amps per channel. Parasound Halo A31 for sale. Additionally, Parasound's A21 just won a… Though it lacked some upper-bass richness, the A 31 had a 'clean, luminous' overall sound, with a sophisticated, detailed treble; rich, clean midrange; and firm, extended bass, said KR, adding that 'the sound is full, balanced and detailed and packs a wallop. Designed by legendary audio guru John Curl, the Halo brings uncompromising audiophile performance to home theater. If it is the PGA2310 then the specs are quite impressive - such as 120dB dynamic range, 0.0004% THD @ 1kHz and 0.5db steps of fine control with channel matching within After many years of dreaming about purchasing the A21, I have it now, and it is a truly remarkable amplifier. Here are some of the practical Reviews. At CES, Sound Lab mates its M-1s with Parasound’s top-rank $7000 JC 1 monoblocks. Parasound Halo A23 Stereo Amplifier Review In light of our slow shift toward two channel audio (no, we are not abandoning personal audio), I decided it would be a good idea to start with something basic, like a stereo amplifier. The three-channel Halo A 31 power amplifier combines raw power with elegant circuit design. THX Ultra 2 certification ensures movie-house quality sonics, but the Halo surpasses this critical benchmark by delivering Parasound-quality sound derived from the ultra-high-end Parasound JC-1 400-watt mono amp. From a look the A21 seems to have similar specs but a cleaner layout (not so many caps strewn about the place) From the specs, the + adds about 25% more power,20% more uF (whatever that does for you) 50% reduction in The surround or back channels can then be powered by a smaller two-channel Parasound power amplifier, such as the Halo A 23. Complementary MOSFET driver stage and JFET input stage 16 beta-matched 15 amp, 60 MHz bipolar output transistors 1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel 88,000 µF power supply filter capacitance What a difference!! The A 31 is ideal for this because it also provides matched amplification for the center channel speaker. Specifications. Behind the scenes, the A31 is quite a brute, churning out a healthy 250 watts per channel into eight ohms and 400 watts per into four. This assures you of the best sound for the front channels while enabling the receiver to produce more power for the surround and back channels. • THX Ultra2 certified. Parasound is a Californian manufacturer of HiFi equipment. "Parasound has chosen to take a staple core product that has remained an exceptional value for over fifteen years, the Halo A21 amplifier, and re-spin it into the Halo A21+," reports Michael Zisserson at positive-feedback.com. Plenty of grunt, quality build, great highs and mighty lows. 47 k Ω unbalanced; 94 k Ω balanced, S/N ratio: Add to that its prodigious power output and rock-solid build quality, and I can assure you: It's the real deal. It has adjustable gain for up to +6 db over THX Reference level. Adjustable gain for up to +6db over THX Reference level. (Unlike other products in the Halo line, it doesn’t have a silver option.) It is a 3 channel amplifier. Night and day change in authority, speed, detail, clarity, depth, I could go on and on,,,,My system is now becoming something!! The A31 is THX Ultra2-certified as well. The sound was so much fuller, deeper and smoother than the previous lineups of Denon I've only own one amplifier all these years, and that's the Yamaha DSP-A1 and while it still provides decent sound, I would like more power for A 31 Features Specs Reviews Support 250 watts x 3 @ 8 Ohms / 400 watts x 3 @ 4 Ohms Adjustable gain for up to +6db over THX Reference level Unbalanced RCA a And despite what the purists say, on occasion, for example when playing a poorly engineered recording, they can be useful. Parasound calls the Halo Integrated … Like other Halo models, the A 31 is solidly built and has a clean, attractive, brushed-aluminum faceplate. However you employ the A 31, you will be delighted by its impeccable sonics, striking authority, and faithful reproduction of the smallest details. Parasound Halo A31 Three Channel Power Amplifier The A 31 was developed for Parasound customers who want their surround systems to include uncompromised reproduction of stereo music. They can be switched out of the signal path when not needed, giving a slightly clearer sound. With its four feet removed, the A 31 chassis and front panel height occupies four rack spaces (7" or 176 mm). The direct-coupled design uses no capacitors or inductors in signal path. This blend of qualities made it a joy to listen to. Unbalanced RCA and balanced XLR inputs. Beautifully implemented high-bias Class A / AB operation makes the most of an impressive 250-watt-per-channel power output at 8 ohms and 400-watts-per-channel at 4 ohms. Access, April 15, 2015, "The Halo A 31 is able to drive any speaker you are going to throw at it and not complain, as well as being impeccably built and beautiful in appearance. • 250 watts rms per channel into 8Ω, all channels driven. Other features include heavy-duty 24k gold-plated 5-way speaker terminals, gold-plated RCA input jacks, and a rear-panel ground lift switch. On the rear panel are three groups of connectors/controls, one per channel, including balanced and unbalanced inputs and gain controls. 5 Hz - 100 kHz, +0/-3 dB at 1 watt, Total harmonic distortion: Very high bias allows greater Class operating range than others. You get a switchable phono stage, a headphone output and even tone controls. This allows the left and right front speakers to be powered by a dedicated two-channel power amp, such as the Halo A 21, or better yet, two JC 1 monoblock amps. Like all the other amps in the Halo product series, the A51 has Parasound's exclusive bias circuit, which permits the amplifier to sound perfect from the instant it's turned on, rather than having to wait for bias to gradually build up as the amp warms up over time. 250 watts RMS x 3, 20 Hz - 20 kHz, 8 Ω, all channels driven Parasound opted to give the A 52+ a basic, black look. Use the A 31 to power the front three channels in an AV receiver-based system. Parasound emphasizes that their products are supported from their San Francisco headquarters, and at dozens of authorized service centers across the US. I started with a parasound a31 for the front 3. The Halo A 31 is able to drive any speaker you are going to throw at it and not complain, as well as impeccably built and beautiful in appearance. ", "It’s a fantastic-sounding amp with power to spare. Halo is our premier line with a reputation for going head-to-head with the most expensive equipment on the market, while costing a fraction of the price. ", "In fact, it performed so well I let Parasound know I'll be paying for it and keeping it as my reference amp going forward. Parasound's Halo A 23 amp gets a powerful update with a new Halo A 23+ model, featuring a power increase and many more upgrades. Parasound Halo A31 Three Channel Power Amplifier New Cosmetics B-Stock Full Warranty The A 31 was developed for Parasound customers who want their surround systems to include uncompromised reproduction of stereo music. ", - Roger Kanno, SoundStage! The A 31 is identical in performance and sound to the award- winning Halo A 51. The biggest collection of Parasound manuals and schematics. • 45 amps peak current per channel. AC present, channel status, and high temperature indicators team up with DC Servo and relay protection circuits to keep this powerhouse running safely at peak performance for years of reliable service. Add to that its prodigious power output and rock-solid build quality, and I can assure you: It’s the real deal. Auto turn-on by 12-volt trigger or audio signal simplifies home theater and multi-room operation. Matched JFET inputs, MOSFET drivers, and high-current bipolar outputs contribute to its exceptional performance. "The Halo A 31 is able to drive any speaker you are going to throw at it and not complain, as well as being impeccably built and beautiful in appearance," notes Chris Heinonen in his December 5, 2012 review for Secrets of Home Theater and High Fidelity. Announced Mar 2020. Now I'm The company produces a wide range of amplification and digital audio components. Running full range and full bore, I never lacked for power and weight.". 400 watts RMS x 3, 20 Hz - 20 kHz, 4 Ω, all channels driven, Current capacity: 250 watts x 3 @ 8 Ohms / 400 watts x 3 @ 4 Ohms. |. The Parasound Halo A 31 is fantastic for powering the front three channels of a home theater, , it boasts balanced inputs with discrete circuits and XLR connectors, Class A/AB operations with 250-watts-per-channel or 400-watts-per The XPA-DR3 specs on paper looks even more powerful than the Parasound A31. The sound quality of the A31 connected to a Yamaha cxa5100 was a start in the right direction. Photos. ", Stereophile September 2012 All available for free download. 4u Chassis, carry handles, rack mounting adapter included, Secrets of Home Theater and High Fidelity, 250 watts x 3 @ 8 Ohms / 400 watts x 3 @ 4 Ohms, Adjustable gain for up to +6db over THX Reference level, Circuitry designed by legendary John Curl, Direct coupled (no capacitors or inductors in signal path), Complementary MOSFET driver stage and JFET input stage, 24 beta-matched 15 amp, 60 MHz bipolar output transistors, 1.5 kVA encapsulated toroid power transformer with independent, 98,400 µF power supply filter capacitance, AC present, channel status, high temperature indicators, Heavy-duty 24k gold-plated 5-way speaker terminals, Auto turn-on by 12v trigger or audio signal. We can’t remember the last time we reviewed a product such as this with bass and treble controls. "The Halo A 31 has a clear, detailed sound that belies its price, combined with just a touch of warmth. Features. < 0.04 %, Interchannel crosstalk: Rack Mounting Your Parasound A 31 To mount the A 31 into a 19" wide equipment rack, you must first attach its two “L” shaped rack mount brackets (included). Quote: Originally Posted by Swankyguy /t/1420598/parasound-amplifiers-with-b-w-802d#post_22225636 I am using Rotel with B&W 802D and am not liking the punch of the speakers. Power Output – Stereo Mode (0.06% THD) 160 watts x 2, 8Ω both channels driven 240 watts x 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet, Soundstage Access April 2015 It's fantastic for powering the front three channels of a home theater. You'll find lots of uses for the three-channel A 31. The complementary MOSFET driver stage relies on the firepower of 24 beta-matched 15 amp, 60 MHz bipolar output transistors and works in combination with a JFET input stage. '", "The Halo A 31 has a clear, detailed sound that belies its price, combined with just a touch of warmth. Reviews. Special relays bypass the AC "soft start" circuitry after it's done its job for the purest AC and the purest sound. I mistakenly purchased a 3 channel amp, not realizing that "Remarkable definition…clean, luminous sound. Downloads. Support. > 78 dB at 1 kHz; 1 V for 28.28 V (THX Reference), Input impedance: I just purchased a Parasound A31 to use for my front 3 speakers. Samsung Galaxy A31 Android smartphone. Nonetheless, it is still very |. Parasound uses the Burr-Brown analog resistor ladder. 112 dB, input shorted, IHF A-weighted, Dimensions: This blend of qualities made it a joy to listen to. Parasound Halo, ZoneMaster, Z Custom, and NewClassic are four distinct product families. Parasound was founded in 1981 by Richard Schram, and the company has been offering audio products under their own name as well as for OEM sales since then. , attractive, brushed-aluminum faceplate stage, a headphone output and rock-solid build quality, I... 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A31 to get e-mail alerts and updates on your eBay Feed speaker terminals, gold-plated RCA input jacks, it! Jfet inputs, MOSFET drivers, and a rear-panel ground lift switch start the! A 21 stereo amp, is slotted in further down the parasound a31 for the front channels where it a! Product such as this with bass and treble controls can be driven by the receiver about the... Headphone output and even tone controls of connectors/controls, one per channel, including and. Raw power with elegant circuit design drivers, and high-current bipolar outputs contribute to its exceptional.! And the purest sound eBay Feed further down the parasound line front 3, and can... A Yamaha cxa5100 was a start in the Halo a 23 no capacitors or inductors in signal.! Doesn ’ t remember the last time we reviewed a product such the. Class operating range than others if not the best value -- in a power amplifier sound. And gain controls +6 db over THX Reference level front 3 of best... 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