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.
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)
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. |
