$2199.99 Buy It Now or Best Offer
free,30-Day Returns
Seller Store hi-fi.heaven
(13173) 99.1%,
Location: Green Bay, Wisconsin
Ships to: US,
Item: 125156282284
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Technics:Technics
Type:Integrated Amplifier
Color:Black
SU-G700-K:SU-G700-K
WE ARE AN AUTHORIZED TECHNICS DEALER!Stereo Integrated Amplifier SU-G700Technics’ Definitive Integrated Amplifier Fully Conveys the Energy of the MusicReference-class High-quality Audio TechnologyInheriting the reference-class audio technology concept, the JENO Engine transmits and processes audio signals in full digital and with minimal jitter from the input stage to the power stage. Speaker load adaptive phase calibration (LAPC) ensures ideal gain and phase characteristics for any type of speaker. The newly developed low-distortion switching power supply realises accurate power supply by suppressing switching frequency fluctuations caused by load shifting.JENO Engine (Jitter Elimination and Noise-shaping Optimization)In order to faithfully transmit the massive amount of audio data sent to the speakers without loss, the SU-G700 power amp section uses full digital amplification employing the JENO Engine, based on the design concept of reference systems. In order to solve the issue of sound quality degradation due to jitter, which poses problems for conventional digital amplifiers, the SU-G700 has an original jitter reduction circuit that eliminates jitter over the entire audible frequency range. Also, a unique, high-precision PWM (Pulse Width Modulation) conversion circuit is used for PWM conversion, which is important for sound quality. By optimising items such as the noise-shaping speed, degree, and quantization number through our unique expertise, data even in the wide dynamic range contained in high-resolution sound sources is converted to PWM signals without loss. These technologies provide reproduction of natural and finely detailed sound, enabling perception even of delicate music nuances.LAPC (Load Adaptive Phase Calibration)Speaker impedance changes with each frequency and a power amplifier is required to drive speakers without being affected by the speaker’s characteristics. However, conventional digital amplifiers are connected to speakers through a low-pass filter at the output stage, so they are even more strongly affected by the speaker impedance characteristics. Also, although the amplitude characteristics of conventional amplifiers due to negative feedback were improved, the phase characteristics could not be enhanced. We thus developed a speaker impedance adaptive optimisation algorithm that performs correction to the ideal impulse response through digital signal processing by measuring the frequency amplitude-phase characteristics of the amplifier with the speakers connected. This new technique enables flattening the frequency characteristics of amplitude and phase, which had previously not been achieved by amplifiers, as well as delivering a sound with rich spatial expression.High-speed Silent Hybrid Power SupplyWith a conventional switch mode power supply, the switching frequency changes in response to the load fluctuation in order to control the switching ON time for stabilising the output voltage. This fluctuation component in the switching frequency has a negative impact on sound quality. The newly developed power supply reduces the noise component harmful to sound quality by fixing the switching frequency. In addition, the latter stage in the switching power supply is provided with a linear regulator to stabilise the output voltage. The linear regulator uses custom, high-definition electrolytic capacitors.What’s more, our current resonance-type power supply decreases the level of switching noise. The parts used for absorbing noise, such as capacitors, were carefully selected. All possible measures were taken to achieve low noise and reproduce clear sound.Digital Noise Isolation ArchitectureFor the PC input terminals, the amplifier uses power conditioners with non-magnetic carbon film resistors that provide strong protection against magnetic distortion, and high-quality ruby mica capacitors featuring excellent characteristics such as low dielectric loss, high voltage resistance, and temperature stability. Sound reproduction with greater purity was pursued by blocking the incursion of outside noise.Three-section ConfigurationIn integrated amplifiers there are a variety of circuits, including circuits that handle the micro-signals of inputs and those that handle a large current, such as output circuits and power-supply circuits. The SU-G700 uses a three-section construction with partitions installed between the circuit blocks according to the signal level handled. This eliminates interference between circuit blocks, thus achieving clear sound quality. Also, the chassis rigidity due to this construction suppresses the vibration of electrical parts, thereby suppressing deterioration in sound quality.Optimally Activated Circuit SystemThe Optimally Activated Circuit System allows the operation of various digital modules to be stopped – such as those used for display, analogue and digital interfaces – to minimise the noise generated when music is playing.Battery Driven Clock GeneratorThe best power supply for delicate circuitry such as the clock generator in new amplifiers is one entirely isolated from any noise or fluctuations in the mains supply. Technics has extensive experience in power supply isolation using batteries. This technology creates ultra-low-noise pre-amplifier stages.High-quality Analogue CircuitAnalogue input is converted with high precision to a digital signal by the high quality 192-kHz/24-bit A/D converter [Burr-Brown PCM1804 (Texas Instruments)], so the high-purity sound reproduction capability of the full-digital system can be maximised in playing back analogue sources. High-definition switching relays are used for signal switching.Low-noise PHONO InputThe PHONO input achieves low noise by using a differential parallel connection configuration of a first-stage, low-noise FET. In addition, four-level gain adjustment enables selection of the best gain according to the cartridge output. This enables optimal playback of high-grade analogue recorded sound sources tailored to the user’s environment.Class AA Headphone AmplifierThe SU-G700 uses a Class AA headphone amplifier with separate amplifier circuits for voltage amplification and current amplification of the audio signal. The voltage is amplified by a high-grade operational amplifier, the current is amplified by an operational amplifier with high current-supply capability, and the high-grade PWM signal output from the JENO Engine is converted to analogue with high precision, thus enabling headphones to be ideally driven. This makes it possible to reproduce music with low distortion and a wide frequency range no matter what the load impedance of the headphones is.Voltage amplification is performed without any load current so the input signal is faithfully amplified.The necessary current is supplied to the load according to the output voltage of the voltage amplifier.High-rigidity Aluminium CabinetThe High-rigidity Metal Double Chassis features a steel-plate inner chassis and a steel-plate outer chassis to reduce vibration and noise that degrade the purity of sound.To support heavy parts and components and lower the centre of gravity for improved stability, the inner chassis is made of a 1.2-mm-thick plate. The bottom surface of the cabinet is a 2-mm-thick steel plate. This improves the vibration damping performance and achieves a low centre of gravity. The front panel is made of a 7-mm thick aluminium plate to resist the effects of electromagnetic noise.Accurate Digital TechnologyJENO Engine (Jitter Elimination and Noise-shaping Optimisation) LAPC (Load Adaptive Phase Calibration) High-speed Silent Hybrid Power Supply Battery Driven Clock Generator High-rigidity Metal Double ChassisNoiseless Signal TechnologyDigital Noise Isolation Architecture Optimally Activated Circuit SystemTechnics Definitive DesignHigh-rigidity Cabinet Three-section ConfigurationFTC Output Power70 W + 70 W (1 kHz, T.H.D. 0.5 %, 8 Ω, 20 kHz LPF) 140 W + 140 W (1 kHz, T.H.D. 0.5 %, 4 Ω, 20 kHz LPF)Input Sensitivity / Input ImpedanceLINE 200 mV / 22 kΩ, PHONO (MM) 2.5 mV / 47 kΩFrequency ResponseLINE 5 Hz – 80 kHz (-3 dB, 8 Ω), PHONO (MM) 20 Hz – 20 kHz (RIAA DEVIATION ±1 dB, 8 Ω), DIGITAL 5 Hz – 90 kHz (-3 dB, 8 Ω)Load Impedance4 – 16 ΩAnalogue Input TerminalLINE x 2 (LINE1 IN, LINE2 IN / MAIN IN) , PHONO (MM) x 1Digital Input TerminalCoaxial Digital x 2, Optical Digital x 2, USB-B (PC)Analogue Output TerminalPRE OUT x 1, LINE OUT x 1 (ANALOGUE SOURCE ONLY)Headphone OutputYesUSB-DAC (USB-B)USB Audio Class 2.0, Asynchronous ModeSupport CodecDSDYes (2.8224 MHz, 5.6448 MHz, 11.2896 MHz)PCMYes (32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz / 16, 24, 32 bit)Power SupplyAC120 V, 60 HzPower Consumption85 WDimensions (W x H x D)430 x 148 x 428 mm(16 15/16 x 5 13/16 x 16 27/32 in.)WeightApprox. 12.3 kg (Approx. 27.2 lbs)AccessoriesRemote Control, AC Cord, Owner’s ManualHi-Fi Heaven1549 Sixth StGreen Bay, WI 54304Contact us with your exact shipping address for accurate shipping cost.Larger speakers and items over 150lbs are strapped to a pallet and shipped via Freight including liftgate and residential delivery.We accept Pay-Pal or credit cards by contacting our store.We offer a 4% discount with payment by Zelle or check.Defective items are exchanged within 14 days from delivery.After 14 days, the manufacturer’s warranty will apply. Contact us for any assistance in obtaining warranty assistance.Defective item returns must be in the manufacturer’s original packaging, in like-new condition, including all packaging materials, shipped as-received and fully insured.Items are guaranteed to be as described.If a refund is desired, we will refund your full purchase price minus a 20% restocking fee.The item must be as received & unopened. Buyer pays return shipping costs.If you are having a problem, Please call before making a return claim on eBay.We do not offer free auditions or trials of merchandise.Returns will only be accepted for items that are truly defective.We use methods to detect product tampering.We will seek legal action against any individual or entity attempting to defraud us.Hi-Fi Heaven1549 Sixth StGreen Bay, WI 54304
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