Onkyo TX-8555 Stereo Receiver

by Onkyo

Product Details

• Product Dimensions: 13.4 x 17.1 x 5.9 inches ; 18.7 pounds
• Shipping Weight: 24 pounds
• Shipping: Currently, item can be shipped only within the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B001AMUFMA
• Item model number: TX-8555B
• Average Customer Review: 4.2 out of 5 stars  See all reviews (83 customer reviews)
• Amazon Best Sellers Rank: #22,036 in Electronics (See Top 100 in Electronics)

Product Description

From the Manufacturer

Onkyo's TX-8555 A/V Stereo Receiver: Focusing on a Superior Audio Amplification Approach for Quality Stereo Sound

In the fast-paced world of home entertainment technology, change has become an understated word. Technologies now change so quickly that the new becomes yesterday’s product before you barely become accustomed to it. Perhaps it’s time to refocus on what’s really important for quality audio: first-rate sound with high power output. Forget about over-hyped processing technologies. If your receiver lacks the fundamental amplifier design from the power supply through to the output stage, everything else is superfluous. The TX-8555 is built with this in mind. Incorporating Onkyo's proprietary Wide Range Amplifier Design (WRAT) with an isolated power transformer and discrete output stage, the TX-8555 is focused on maintaining the purity of music, radio and video sources. Also, with the option to take up XM® Satellite Radio or to connect your iPod® to the system, the TX-8555 gives you the versatility for a sweeping range of entertainment options.

Superb Design

The TX-8555 includes Onkyo's exclusive Wide Range Amplifier Technology

With its continued excellence in sound reproduction, Onkyo has once again created a powerful, very versatile stereo receiver for the home theater enthusiast. The TX-8555 Stereo Receiver offers superb functionality and dual-room capability that will be hard to match. Onkyo exclusives like Wide Range Amplifier Technology (WRAT), Discrete Output Stage Circuitry, Massive Power Transformer, and Heavy-Duty Extruded Heat Sink offer the cleanest signal on the market. Most of the receiver's audio processing is handled automatically, with little intervention on your part. However, it is so advanced; its discrete output reproduces music with unmatched sonic clarity and dynamic power.

This receiver features a high-end design approach encompassing everything from its massive power transformer design and high-current, low-impedance drive to discrete output circuitry and minimal use of negative feedback. This enables the receiver to combine tighter bass, superb transient response and enhanced presence at any volume level. It's the Wide Range Amplifier Technology (WRAT) that will fill your room with noise-free, impressively powerful, true-to-life sound. With a broader frequency range and lower harmonic noise entering the signal path, this receiver is perfectly suited for new high resolution DVD-Audio and SACD formats.

In a Nutshell

The TX-8555, with high-current, low-impedance drive capability, 2 x 100W amplification, 20Hz - 20KHz frequency response, and a vibration-resistant chassis, is a lot of what you need and none of what you don't. This receiver is capable of delivering breathtaking stereo sound. It features XM/Sirius satellite radio capability, 4-sets of A/V inputs, 2-sets of audio inputs/outputs, Zone 2 output, individual treble, bass, and balance controls, Remote Interactive (RI) port, A/B speaker switching, banana plug speaker posts, and an AM/FM tuner. Because of the high efficiency of its design, this receiver produces exceptional sound quality, and clarity in every audible detail. With speaker A/B selectors and dedicated speaker terminals, this receiver offers the capability to send audio to a second room. In addition, the built-in IR port enables multi-room distribution with optional control systems.

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Technical Specifications

• Stereo RMS Power: 100W per channel x 2, into 8 ohms
• Dynamic Range: 230W per channel x 2, into 4 ohms, 70W per channel x 2, into 6 ohms, 145W per
• channel x 2, into 8 ohms
• No. of Channels: 2
• Speaker Selector: Yes
• Multi Room/Source: Yes, Zone 2 Output
• AM/FM Tuner: Yes, with 40 presets
• Input Analog Audio: - x2 Sets (RCA)
• Input Composite A/V: - x4 Sets (RCA)
• Input Phono: - x1 Set (RCA)
• Input FM Antenna: - x1
• Input AM Antenna: - x1
• Output Analog Audio: - x2 Sets (RCA)
• Output Composite A/V: - x1 Set (RCA)
• Output Composite Video: - x1 (RCA)
• Output Headphone: - x1 (1/4" Phone)
• Output Speakers: - x4 Sets (Binding Post)
• Output Zone 2: - x1 Set (RCA)
• Output Pre/Subwoofer: - x1
• IR Input/Output Port x1 (Mini)
• RI Port x1 (Mini)

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Choosing an Onkyo A/V Receiver for Your Home

Onkyo offers a number of quality A/V receiver systems that are just right for your home. Which A/V receiver system you choose depends on how much you are willing to spend and which features you prioritize in a home theater environment. Here is a quick breakdown of these A/V receiver systems.

	The TX-NR906B: In classic black, the Onkyo TX-NR906 7.1 channel home theater receiver delivers power and quality. With HQV Reon-VX video processing, dual high-def HDMI outputs, Audyssey room correction technologies, and multi-room audio and video distribution, the TX-NR906 leaves no base uncovered. Built around an isolated power block and pre-processing unit, this network receiver reveals the full potential of virtually any media. This includes any Internet or computer-based sources accessed via its network apparatus, which incorporates a vTuner interface and Certified for Windows Vista status. The network capability of the TX-NR906 gives you access to Internet radio and digital music files.
	The TX-NR906S: In a beautiful silver, the Onkyo TX-NR906 7.1 channel home theater receiver delivers power and quality. With HQV Reon-VX video processing, dual high-def HDMI outputs, Audyssey room correction technologies, and multi-room audio and video distribution, the TX-NR906 leaves no base uncovered. Built around an isolated power block and pre-processing unit, this network receiver reveals the full potential of virtually any media. This includes any Internet or computer-based sources accessed via its network apparatus, which incorporates a vTuner interface and Certified for Windows Vista status. The network capability of the TX-NR906 gives you access to Internet radio and digital music files.
	The TX-SR876B: In classic black and based on a winning design for high-definition home theater reproduction, the TX-SR876 7.1 channel home theater receiver is a comprehensive A/V processing hub with a deep reservoir of amplification power to draw on. Reveling in its new THX Ultra2 Plus certification, the TX-SR876 shows its class with a broad range of capabilities, phenomenal performance, and noticeable finesse. With its advanced HQV Reon-VX video processing and supreme high-definition surround sound decoding, this receiver belongs in elite company. It's also one of the first receivers anywhere to employ ISF (Imaging Science Foundation) video calibration. From whatever movie, music, broadcast, or gaming source you choose, the TX-SR876 will impress time and time again.
	The TX-SR876S: In a beautiful silver and based on a winning design for high-definition home theater reproduction, the TX-SR876 7.1 channel home theater receiver is a comprehensive A/V processing hub with a deep reservoir of amplification power to draw on. Reveling in its new THX Ultra2 Plus certification, the TX-SR876 shows its class with a broad range of capabilities, phenomenal performance, and noticeable finesse. With its advanced HQV Reon-VX video processing and supreme high-definition surround sound decoding, this receiver belongs in elite company. It's also one of the first receivers anywhere to employ ISF (Imaging Science Foundation) video calibration. From whatever movie, music, broadcast, or gaming source you choose, the TX-SR876 will impress time and time again.
	The TX-8555B: Forget about over-hyped processing technologies. If your receiver lacks the fundamental amplifier design from the power supply through to the output stage, everything else is superfluous. The TX-8555 stereo receiver is built with this in mind. Incorporating Onkyo's proprietary Wide Range Amplifier Design (WRAT) with an isolated power transformer and discrete output stage, the TX-8555 is focused on maintaining the purity of music, radio and video sources.
	The TX-8255B: While new technologies come and go, the fundamentals of competent receiver design remain constant. You can never underestimate the importance of the power supply, and all other audio processing functions cannot rule over good solid amplification. This is the direction Onkyo has taken with the TX-8255 stereo receiver. Built for those people who value the benefits of time-proven amplification design, the TX-8255 takes core Onkyo technology--and an array of features you'll actually use--to bring you a no-nonsense stereo receiver that will deliver audio and radio signals with agreeable quality.

Product Description

Recent years have ushered in a new era in flat-screen displays, high-definition video, and sophisticated multi-channel audio. But there’s still a vital role to be played by the dedicated audio system.This streamlined two-channel receiver lets you focus solely on your music or get high-quality sound from movies, broadcasts, and gaming.The TX-8555 is packed with proprietary Onkyo amplifier technology and housed in a sturdy, vibration-resistant chassis.Whether it’s channelling your iPod, SIRIUS satellite Radio, XM Satellite Radio, CDs, or other traditional audio sources, the TX-8555 translates your music with effortless power and finesse. It even offers Zone 2 capability, so you can simultaneously play a separate audio source in a second room.

Customer Reviews

Most Helpful Customer Reviews

51 of 51 people found the following review helpful:

5.0 out of 5 stars Superb, January 4, 2010

By 

Hi Tech Guy (MD, USA) - See all my reviews

This review is from: Onkyo TX-8555 Stereo Receiver (Electronics)

I purchased this amplifier recently. I own a few older, well-regarded amplifiers (tube and solid state) that cost a lot more money when new, so my expectations were not high for this Onkyo. That said, I am stunned by how nice this amplifier sounds. I run the amplifier in Pure Audio mode (press the Pure Audio button on the front panel twice, then the blue LED comes on indicating Pure Audio mode). If I didn't know better, I'd swear this was a high-end tube amplifier. There is absolutely no background noise. No hiss. No hum. Nothing but dead silence. It makes music with silent passages jump to life. Whether I use this amplifier to drive Paradigm Titan speakers or Grado headphones, the quality of the sound reproduction and the dynamic range is absolutely remarkable, especially bass reproduction. Using a quality CD audio source, I can clearly hear every cymbal, with all the timber, every bass note, with all the string vibration from every finger pluck. For what this amplifier costs, I can't imagine looking elsewhere unless you need to drive large reference monitors. This amplifier is more than capable of driving anything up to full-sized floor speakers at reasonable volume. The amplifier includes an AM/FM tuner that works well enough. FM channels come in loud and clear using the included wire antenna. AM reception is a bit more difficult using the included loop antenna and its short wires, so at a minimum expect to add four to eight feet of wire to the AM antenna to get the loop well clear of any power cords. But that's really of little consequence if what you're looking for first and foremost is a high-quality stereo amplifier. I've listened to high-end amplifiers costing many times as much and few sound this pure and clean. The overall look and feel of the unit is professional grade, with just the right amount of heft. All controls have positive feedback and none feel flimsy. The volume knob is particularly nice, with a heavy, smooth action that is slow to respond, resulting in very fine, analog-like volume control. In brief summary, I doubt anyone with reasonable expectations will be disappointed. This stereo amplifier provides performance and quality well beyond its price level.

56 of 58 people found the following review helpful:

5.0 out of 5 stars Great bang for the buck!, October 13, 2008

By 

Colin_Potter_780 "CP780" (Alberta, Canada) - See all my reviews

This review is from: Onkyo TX-8555 Stereo Receiver (Electronics)

To say that this Onkyo is a performer for the money is an understatement. I have an Onkyo 705 surround receiver so they were my first choice for my stereo setup as well, but I auditioned a lot of other equipment in the price range, and nothing came close! This is exactly what Onkyo is known for; clean, crisp power, good signal-to-noise ratio, etc. I am using it to power some Bowers and Wilkins bookshelf speakers that have a sensitivity of about 85db, and at only 40 volume, the house is filled with beautiful sound! I would recommend this receiver to anyone looking for the best performance from their stereo system without buying separate components (pre-amp and power amp)!

The construction is very solid, as with all Onkyo products, and it has a nice weight to it without feeling like it's full of lead. It keeps to the clean, simple component styling that Onkyo and so many other brands are known to use, which I find very attractive. My two main complaints are trivial, but still should be addressed. 1) I could have used a backlit remote like on the 705 and... 2) You have the press the PURE AUDIO button twice to get the PURE AUDIO mode... otherwise, from one press of the button, it goes to DIRECT mode.... Like I said, trivial.

Value: 10/10
Power: 10/10
Sound: 9.5/10
Construction: 10/10
Remote: 8.5/10

Overall: 9.75/10

32 of 32 people found the following review helpful:

5.0 out of 5 stars Superb, January 22, 2009

By 

Sammy (California, USA) - See all my reviews

This review is from: Onkyo TX-8555 Stereo Receiver (Electronics)

After three decades of using Sony products ranging from phones to TV's and stereo equipment, we decided to venture into the world of Onkyo. This receiver had good reviews, fair price and seemed very simple to use. Boy, what a surprise when it arrived: heavy, well constructed, actual knobs for bass and treble, easy on eyes LCD panel, and a boat-load of connections in the back. I'm actually surprised I was able to find a stereo receiver of this caliber.
The built quality is excellent. Instructions... not necessary and the sound! The sound is spectacular. Very linear, clear and direct. No volume spikes, muddy sounds or any form of "hiss" from this unit. Power is more than enough for an average size living room. I have it connected to a Yamaha sub and a set of old KLH speakers. Both of them emit sound that I've never heard before: clear and punchy. It seems the speakers run more efficiently as well (if that's possible). They don't seem strained or overworked. Overall, a great product and I hope it's as reliable as Sony has been.

A couple of minor gripes, again in no way do they affect my satisfaction with the unit. 1) Remote... wish it was as basic as the receiver itself, 2) position light indicator on the volume knob.