A-1VL C-1VL VL Digital—Hear What You`ve Been
Contents
1. Thick Low Impedance Copper Bus Plates for Perfect Ground Potential Electricity stored in an amplifier s capacitor 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 That s why we use thick 1 5 mm x 5 mm copper bus plates on the A IVL to achieve an extremely low level of impedance In contrast printed circuit boards typically use beaten copper for their power lines As this beaten copper is extremely thin as thin as 35 um it creates far more impedance Even if it were the same width as the copper bus plates a printed circuit board would still yield 43 times as much impedance So if you want rock solid power output at virtually any volume the A IVL won t let you down Output Paths that Enable Even Greater Power Transmission Many hi fi users employ heavy gauge speaker cable in their systems However when it comes to internal wiring from the amplifier s input circuitry to the speaker terminals beaten copper is mostly used usually in the form of printed circuit boards Due to its extreme thinness of 35 um this beaten copper can produce high levels of impedance that reduce the effectiveness of the speaker cables no matter how thick they are That s why the A VL s output paths comprise extra thick copper bus plates 1I 5 mm thick 12 mm wi2. for wide dynamic and frequency ranges as well as noticeable sound harmony A C 1VL audiophile Grade CD Player SILVER VAR SERS irey O22 DIRECT DIGITAL PATH Beautiful Clean Lines Inside and Out The C IVL CD player brings together superb audio reproduction user friendly operability and a modern design sensibility Displaying a range of technological advancements this player effortlessly works with and complements the A IVL digital stereo amplifier Onkyo s exclusive VLSC Vector Linear Shaping Circuitry and high grade Wolfson D A converters ensure that the signal is free from the noise that taints other players Also a high purity heavy gauge shielded cable guarantees a digital audio signal that is noise free and less susceptible to flux The C IVL CD player appeals to the music enthusiast who won t settle for anything less than the Onkyo approach to audio excellence
3. lead to electric shock or malfunction Tel 44 1494 681515 Fax 44 1494 680452 http www onkyo co uk Onkyo China Limited Units 2102 2107 Metroplaza Tower l 223 Hing Fong Road Kwai Chung N T HONG KONG SAR of China Tel 852 2429 3118 Fax 852 2428 9039 http www ch onkyo com aS b 05C09 A PRINTED WITH rinted in Japan 7 01 0506 10 2K DT SZISOVINK BA ts Ari mb Ji ji i i Integrated Digital Stereo Amplifier A V L V a Audiophile Grade CD Player f A Quest for the Perfect Digital Sound A 1VL A Digital Amplifier that Reproduces Music with Power and Speed for a More Faithful Performance Digital amplifiers typically achieve a very high power efficiency of 90 compared with a maximum of 70 for analog amplifiers Consequently power consumption and heat dissipation are relatively low making more compact designs possible With the slender stylish A VL Onkyo has taken full advantage of this benefit Another of the main benefits of digital amplifiers their ability to reproduce sound with more lifelike power and speedier transient response is taken to a higher level on the A VL The A IVL reproduces the clarity and impact of musical instruments as they were recorded onto disc creating pure unadorned sound in the mid to high range and faster transient response at the low end Onkyo s VL Digital Technology Mitigates Digital Conversion Errors There are numerous analog to digital conve
4. undertook a painstaking study to discover which parts of the mechanism produced harmful vibrations We then created methods to counteract these vibrations without damaging the sound signal itself Our guiding consideration was always how best to recreate the on stage performance so that the listener could feel fully immersed in the music Other Contributing Features e Toroidal power transformer reduces leakage of magnetic flux and regulates the power supply e Brass pin jacks counteract vibrations and hold plugs securely in place e Brass insulators e Direct Digital Path protects the audio signal against potential noise from nearby microprocessors and power supplies e Digital Out On Off function A VL Integrated Digital Stereo Amplifier SILVER MA DIGITAL A Stylish Marriage of Power and Finesse Onkyo s A IVL digital stereo amplifier provides superior audio performance via quality audiophile parts and uncompromising build quality This slim futuristic digital amplifier possesses a low impedance design with carefully selected parts large capacity separate toroidal transformers thick copper bus vs plates and high grade transparent speaker terminals Also the A IVL combines PWM Pulse Width Modulation amplification and exclusive VL Vector Linear technology to smooth the ripples fluctuations and eliminate the noise inherent in analog or other PWM technologies The result is 90 power efficiency
5. ONKYO IMAGINATIVE SIGHT amp SOUND E ee Sa ee Te r a ja an SALAS ONKYO 0 08 0 0 909 ole 6C sos 2 e Exclusive Onkyo VL Digital Technology e Linear Motor Volume Control e Separate Toroidal Transformers for L R Channels e Brass Insulators e High Grade Banana Plug Compatible Transparent e Brass Pin Jacks Speaker Posts e Heavy Duty Inlet Power Cord e Low Impedance Copper Bus Plates e Rugged Chassis to Prevent Vibrations e Audiophile Grade Parts e Full Function Remote Control VL Digital Hear What You ve Amplifier Section A Power output 100 W 100 W 8 Q kHz DIN Dynamic power 310 W 310 W 3 Q 240 W 240 W 4 Q 130W Been Searching For 130W 8 Q THD Total Harmonic Distortion 0 08 1 kHz VV Damping factor 25 front kHz 8 Q lnput sensitivity and impedance 200 mV 50 kQ LINE 2 5 mV 50 kQ PHONO Output level and impedance 200 mV 2 2 kQ REC OUT Phono overload 130 mV MM kHz 0 5 THD Frequency response 10 Hz 60 kHz LINE 1 dB 3 dB S N ratio 100 dB CD IHF A 70 dB PHONO IHF A Speaker impedance 4 Q 16 Q General Power supply AC 230 240 V 50 Hz Power consumption 105 W Dimensions WHD 435 x 81 5 x 390 mm Weight 1 3 kg C 1VL Zag ao OUTPUT n f ELL M o r DS g 7 fara m aerar 3 Do ToT a x 2 a esaa e High Precision Clock 1 5 ppm e Brass Pin Jacks a e VLSC Vector Linear Shapin
6. de and 18 mm in cross section area With signal paths kept as short as possible a smooth signal flow is possible Other Contributing Features e Toroidal power transformers reduce leakage of magnetic flux and regulate the power supply e Brass insulators support the fabric and mitigate the effect of vibrations e Brass pin jacks counteract vibrations and hold plugs firmly in place e Large speaker terminals ensure firm clasping of the cable core e MAIN IN terminals enable the A VL to be used as a power amplifier C 1VL A High Precision Clock to Reproduce Even the Smallest Element of Sound Information The C IVL boasts an extremely precise clocking mechanism to control and coordinate the timing of all digital signal processes If you think of the clock as an orchestra conductor then the separate digital signals are the individual instruments in that orchestra Without a talented conductor e an accurate clock the sound can become muddy and indistinguishable With the C IVL s state of the art crystal oscillator though you can rest assured It achieves a frequency deviation of just 1 5 ppm compared with 50 ppm on a conventional crystal oscillator The difference is instantly noticeable a stunningly realistic sound field and a beautifully sustained tone for all musical instruments Wolfson Microelectronics 192 kHz 24 Bit DAC to Improve Audio Quality Specifically designed for audio applications the C VL s on board di
7. g Circuitry e Heavy Duty Inlet Power Cord e 192 kHz 24 Bit Wolfson D A Converters e High Grade Pin Cable Included e Direct Digital Path e 3 Digital Outputs 2 Optical Coaxial e Digital Out On Off e Rugged Chassis to Prevent Vibrations e Brass Insulators e Remote Control Audio Section Frequency response 5 Hz 20 kHz S N ratio 10 dB Dynamic range 96 dB THD Total Harmonic Distortion 0 002 1 kHz Output level and impedance 22 5 dBm digital optical 0 5 V p p 75 Q digital coaxial 2 0 V 320 Q analog General Power supply AC 230 240 V 50 Hz Power consumption 9 WV Dimensions WHD 435 x 81 5 x 356 mm Weight 6 8 kg IMAGINATIVE SIGHT amp SOUND ML ed at y tt Ane Onkyo Corporation VLSC is a trademark of Onkyo Corporation Me i 2 1 Nisshin cho Neyagawa shi Osaka 572 8540 JAPAN Due to a policy of continuous product improvement features and specifications are subject to an Tel 81 72 831 8136 Fax 81 72 833 5222 http www onkyo com change without notice He Mint Onkyo Europe Electronics GmbH Liegnitzerstrasse 6 82194 Grobenzell GERMANY Tel 49 8142 4401 0 Fax 49 8142 4401 555 http www eu onkyo com Caution Onkyo UK Office To enjoy proper and safe operation please read the user manual before use Do not install this Suite 1 Gregories Court Gregories Road Beaconsfield Buckinghamshire HP9 1HQ product where it may be exposed to excessive water humidity steam dust or oily smoke This UNITED KINGDOM may
8. gital to analog converter DAC boasts a sampling rate of up to 192 kHz With its multi bit sigma delta design this DAC extends the C IVLs signal to noise ratio out to 10 dB and increases its tolerance to clock Jitter Virtually Eliminate Noise with VLSC Vector Linear Shaping Circuitry Conventional D A conversion methods reduce digital pulse noise at the conversion stage but can t remove it completely Previously only available on Onkyo s high end components VLSC employs a unique D A conversion circuit to overcome this problem Data is converted between the sampling points and Sna these discrete sampling campare Generator es A and B are compared Pulse noise eae a A pure audio points are joined with to produce a smooth from the DAC EE T signal based on analog vectors in real time or surrounding C is created output waveform The sty tants aoe noe ane aly result a noiseless smooth signal aa analog signal based on the digital source Refining the Internal Mechanism to Counter Vibration It is widely known that unwanted vibration from a component s parts will taint the sound quality it produces by creating noise that masks subtle sounds But not all vibration adversely affects the sound signal some is harmful some harmless In the case of a typical CD player vibration interference arises not only from the speakers but also from the disc spinning mechanism For the C IVL we
9. rsion methods with relatively low frequencies For the A VL Onkyo chooses pulse width modulation PVVM as it produces little noise in the higher frequencies In amplifiers that use conventional PWM there is a one to one correlation between the signal and the pulse which results in a signal phase marred with inaccuracies created by pulse noise in the original signal To get around this Onkyo combines PWM with its exclusive VL Vector Linear Digital technology which assesses the average energy in a given cycle so it can greatly reduce phase inaccuracies created by pulse noise in the original signal Onkyo s VL Digital technology comprises a vector generator an integrator like a charger and a reverse trigger generator When the analog input signal is received the vector generator outputs a current proportional to the size of the analog input This current is sent to the integrator where it is charged When the charge quantity reaches a specified value the trigger operates and inverts the output pulse Circuits alternately charge and invert performing pulse width modulation proportional to the analog signal The upper and lower portions of the spike noise waveform are symmetrical so they have pa ae the same area Therefore if ia gt T the analog signal contains Generator Integrator Banepa spike noise the charge quantities will cancel each N DIGITAL other out thus enabling error free A D conversion
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