dtsmaster
Inscrit le: 07 Avr 2007
Messages: 3
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 Posté le: Ven 13 Avr 2007 17:31 Sujet du message: integra research RDC7 preampli HC tres haut de gamme |
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désirant me consacrer exclusivement à la hi fi et aux tubes, je vends un joyau de la HC, un preampli integra research RDC 7 valant 6000?
une pure marveille en HC comme en hifi, entrée 7.1 ( pour nouveaux formats HD audio,
sorties 7.1, dac 24/192, rca,XLR, bref tout est possible.
Tres rare, il est dans un excellent état.
des liens:
http://www.audioholics.com/productreviews/avhardware/Int...
http://www.integraresearch.net
http://www.integraresearch.com
http://www.homecinema-fr.com/forum/viewtopic.php?p=170689688&highlight=rdc#170689688
voilà, je l'ai fait; ah oui le prix:2000? fermeje crois que c'est raisonnable vu la gamme, la performance, l'état splendide et le prix du neuf.
Pour ce prix vous ne trouverez aucun préampli pouvant rivaliser avec.
des specifications:
Formats: THX Ultra-approved with Dolby Pro Logic, Dolby Digital (with THX EX), DTS
Audio inputs: 5 digital coaxial, 1 AC-3 RF digital coaxial, 3 digital TosLink, 9 analog L/R, 1 analog 7.1-channel throughput, 1 RIAA phono
Video inputs: 6 composite, 6 S-video, 3 component
Audio record outputs: 2 tape, 2 video recorder
Audio outputs: unbalanced (RCA) and balanced (XLR) for each L/R, Center, Subwoofer, L/R surround, and L/R rear surround (2 outputs each for unbalanced L/R and Center), Zone 2 L/R, 1 digital coaxial, 1 digital TosLink
Additional inputs/outputs: RS-232 port, A&B assignable 12V trigger, Onkyo RI remote repeater output, main and Zone 2 remote repeater inputs
Analog input/output impedance: 50kohms/470ohms
Signal/noise: Phono, 80dB (IHF A, 5mV input); CD/Tape, 100dB (IHF A, 0.5V input)
FM sensitivity: 17.2dBf, 2.0µV (75ohms IHF)
Voltage requirements: 120V, 60Hz
Dimensions: 1711/16" x 711/16" x 175/16" (WxHxD)
Weight: 35.7 lbs.
- Integra Research RDC-7 Pre-Amp Processor has 7.1-channel THX Surround EX, Upgradeable Processor, Apogee Low-Jitter Clock Integra Research has introduced the RDC-7 high-end home theater surround processor and control preamplifier as the ultimate product for consumers and custom installers who seek peak performance and a full complement of modern features. The RDC-7 offers 7.1-channel THX Surround EX?, Dolby Digital, DTS, THX Ultra certification, a very comprehensive set of inputs, outputs and control features, and a future-proof processor that can be upgraded to handle new formats and technologies. In keeping with Integra Research's mission to deliver the highest quality audio performance possible, the RDC-7 employs a variety of professional-audio type circuits, including balanced outputs, an innovative volume control circuit, and a 192-kHz/24-bit D/A converter with the renowned Apogee Ultra Low-Jitter Clock. This ultra low-jitter digital clock circuit was first developed by Apogee Electronics, of Santa Monica, CA., for the professional music recording and movie industry, and is at the very heart of the best equipment used to make the master recordings for music. Now, Integra Research and Apogee have used the same technology to play these recordings back at home. Jitter is the measure of the lack of rhythm between digital sound samples. Unfortunately, the human ear and brain are very sensitive to these tiny timing irregularities. Jitter of just a few nanoseconds can compromise digital audio performance by interfering with the brain?s ability to perceive a stereo soundstage. By using the Apogee clock, the RDC-7 minimizes jitter and ensures that each digital sample arrives in perfect step with all the other samples. When linked to the company?s exclusive VLC DACs, the resolution and accuracy of the system is second to none. The Vector Linear Converters provide a much more accurate representation of the signal as it is being converted from the digital bitstream to an analog signal. By extrapolating information and ""filling"" the gaps between samples, the system has the ability to recreate the audio signal with amazing precision and clarity. The result is an audiophile sound quality with tremendous depth and timbre.It takes much more than just an accurate clock to make a high-end digital audio system. The use of balanced line interconnects is standard in professional audio, and the RDC-7 uses these to connect to its matching RDA-7 power amplifier. This allows very low noise levels and much longer runs than unbalanced inter-connects, a feature well appreciated both by audiophiles and custom installers. The RDC-7 uses Optimum Gain Volume Circuitry, a new audio level control technology that provides a significant improvement in signal-to-noise (S/N) ratio. Usually, the S/N value quoted by amplifier manufacturers is measured under conditions that are nothing like typical listening conditions. At the high volume levels used for measurements, noise is masked, and difficult to hear, but at low volumes it is readily apparent. The objective for our Optimum Gain Volume circuit was to improve the S/N ratio at realistic user listening levels. When measured under these conditions, typical modern audio amplifiers yield an S/N ratio of between 80 and 85 dB. In contrast, our amplifiers with Optimum Gain Volume can achieve a S/N ratio in excess of 100 dB through optimization of the gain balance. In addition, we have maintained complete compatibility with conventional amplifiers with regard to gain and speaker output. The circuit works by keeping the minimum levels well above the ground level noise floor, and regulating the volume at a later stage in the preamplifier circuitry. A crude analogy is to control the output of a hose at the nozzle, rather than by regulating the wall faucet. One of the most remarkable features of the Integra Research RDC-7 is its future-proof upgradable A/V processor. While it is factory equipped to decode every U.S. and European multi-channel standard, including Dolby Digital, DTS, MPEG and THX Surround EX, it will also be able to handle formats yet to come. Its decoders are software-upgradeable via a bidirectional RS232 port. These updates will cover more than just decoding standards. Other likely upgrades include DVD-Audio and DSP algorithms. One of the first upgrades is software for a planned IEEE-1394 Firewire interface. The software will support a connector card that plugs into a bay on the back of the RDC-7. Once this is installed, the RDC-7 will have three IEEE-1394 connectors to support a broad range of new technology components. This technology is the best answer to consumer complaints that modern products can become obsolete overnight, said Sergio Batista, Onkyo?s national product manager. Now, just install the new software, and it is like getting a new component. Registered owners will be notified as new upgrade applications become available. Initially, software upgrades will be handled by authorized service centers and custom installers in order to identify any unforeseen problems. Assuming the upgrade procedures prove to be trouble-free and consumer-friendly, the goal is to then make them available on the company's web site.
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beaucoup de HC et beaucoup de Hi Fi ! |
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