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Onkyo A-1VL Home Cinema Amplifier, size: 496 KB
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INTEGRATED DIGITAL STEREO AMPLIFIER
Available in Silver
Enter the World of Pure Audio with Exclusive Onkyo VL Digital Technology
Its here, the world of digital components with high power from slim, stylish designs. But its not just power and a pretty face that set the A-1VL apart from the rest. A low-impedance design, featuring carefully selected audiophile quality parts, makes for pure, crystalline sound. But heres the kicker: the A-1VL is a digital power amplifier. One that combines PWM (Pulse Width Modulation) amplification and exclusive VL (Vector Linear) technology to smooth the fluctuations and eliminate the noise inherent in analogue or other PWM technologies. The result is amplification with over 90% efficiency, for wide dynamic and frequency ranges and sound harmony that provides the audio impact youve been missing.
Exclusive VL (Vector Linear) Digital Technology Conventional conversion methods reduce digital pulse noise at the conversion stage but cant remove it completely. Previously only available on Onkyos high-end components, VL (Vector Linear) Digital technology employs a unique conversion circuit to overcome this problem. Data is converted between the sampling points, and these discrete sampling points are joined with vectors in real-time to produce a smooth output wave form. The resulta noiseless, smooth signal based on the digital source. PWM (Pulse Width Modulation) While the name Pulse Width Modulation may seem imposing, its actually an efficient method of amplifying analogue audio signals. The amplifier operates at a high frequency, with high level signals resulting in longer pulses. In amplifiers that use conventional PWM, there is more of a oneto-one correlation which results in greater phase error. This results in a signal carrying phase inaccuracies created by pulse noise in the original signal. Onkyo combines PWM with its exclusive VL Digital technology which looks at the average energy in a given cycle to greatly reduce phase inaccuracies created by pulse noise in the original signal. Dual Mono Circuitry Design with Ultra-High Power Supply When a digital amplifiers input signal is 0, no current is passed. But when the signal changes to 1, the amplifier must instantly provide full output power. Now, if the amplifier is receiving a relatively small amount of power, and if it is operating at full capacity, there will be sharp, unwanted fluctuations in voltage. The amplifiers output power wont be proportional to its input power, and tonal accuracy during CD playback will be degraded. Thankfully, the A-1VL is equipped with dual power supply circuitsone for each channel in order to boost power output while avoiding interference between the left and right channels. In addition, each channel features a large toroidal transformer and a mass capacitor rated at 24000 Fthats 48000 F for the amplifier overallto suppress excessive fluctuations in voltage.
Thick, Low-Impedance Copper Bus Bars for Perfect Grounding Electricity stored in an amplifiers condenser is outputted via an electric power line. To provide continuous output at full-power, a digital amplifier requires a large, stable flow of current. Any loss of power at the output stage becomes a hindrance to the instantaneous flow of that current. Thats why we use thick (1.5 mm x 5 mm) copper bus bars on the A-1VL, to achieve an extremely low level of impedance. Printed circuit boards, by contrast, typically use beaten copper for their power lines. Because this beaten copper is extremely thin (as thin as 35 m), it creates far more impedance. Even if it were the same width as the copper bus bars, a printed circuit board would yield 43 times as much impedance. So, if you want rock-solid power output at virtually any volume, the A-1VL wont let you down. High-Grade Build Quality In addition to features only Onkyo can give you, weve made sure that unwanted noise and vibrations wont taint your delicate audio signal. Just one look at the A-1VL will confirm this is amplifier built to last. The rugged chassis on the outside makes sure that any shelf-borne noise never interrupts your listening. Inside youll find brass insulators, pinjacks and on the back, youll find high-grade, bananaplug-capable, transparent speaker terminals for hook-up to high-quality CD players like the C-1VL for an audio experience that finally does justice to your music CDs.
Features Exclusive Onkyo VL Digital 2-channel amplifier 2 x 100 W, 8 ohms, 1 kHz (DIN) Separate toroidal transformers for L/R channels Separate mono circuitry design Low-impedance, copper bus plate Direct function for using as a power amplifier Audiophile grade parts Linear motor volume control Brass insulator Brass pinjacks High-grade, banana-plug-capable, transparent speaker terminals Pre-out terminai Main in terminal Extruded aluminium front & side panels Rugged chassis to prevent vibrations Heavy-duty, inlet power cord Full-function RI remote control
SPECIFICATIONS AMPLIFIER SECTION
Power Output.. Front L/R 100 W + 100 W
(8 , 1 kHz, DIN)
Dynamic Power.. 310 W + 310 W (3 , Front)
240 W + 240 W (4 , Front) 130 W + 130 W (8 , Front) Total Harmonic Distortion.. 1 % (Power Rated) Damping Factor... 25 (Front, 1 kHz, 8 )
Input Sensitivity and Impedance
Line... 200 mV/50 k Phono MM... 2.5 mV/50 k
Output Level and Impedance
Rec out... 200 mV/2.2 k
Phono Overload... 130 mV (MM, 1 kHz, 0.5 %) Frequency Response.. 10 Hz-60 kHz (+ 1, - 3 dB, CD) Signal-to-Noise Ratio.. 100 dB (CD, IHF-A)
70 dB (Phono, IHF-A)
Analogue Inputs... Phono, Tuner, CD, Line1, Line2, Main in
Analogue Output.. Line2 Pre Output... 1 (L/R) Speaker Output.. 1 (L/R)
Speaker Impedance.. 4 -16
Full-function RI remote
Power Supply.. AC 230 V-240 V, 50 Hz Power Consumption.. 105 W Dimensions (W x H x D).. 435 x 81.5 x 390 mm Weight... 11.3 kg
Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice. VL Digital is a trademark of Onkyo Corporation. All other trademarks and registered trademarks are the property of their respective holders.
Onkyo Corporation Business Unit Dept.: 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: +81-72-831-8005 Fax: +81-72-833-5222 http://www.onkyo.com/ Onkyo Europe Electronics GmbH Liegnitzerstrasse 6, 82194 Grobenzell, GERMANY Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.onkyo.net Onkyo Europe UK Office Suite1 Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire HP9 1HQ, UNITED KINGDOM Tel: +44(0)1494-681515 Fax: +44(0)1494-680452
NPR No. 04N21 06/04 Printed in Japan
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