Power Amplifier nghe nhạc Hi-end ACCUPHASE A70 - Sản xuất tại Nhật Bản | SAIGON HD

ACCUPHASE A70

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    HƯỚNG DẪN MUA HÀNG

    BÁO GIÁ CAO

    Tư vấn - Mua hàng

    0933.252.606

    ACCUPHASE A70

    ACCUPHASE A-70

    Inheriting many outstanding technology features of the A-200, the A-70 represents a full model change from the A-65, ready to take its place as the ultimate pure class A stereo power amplifier. While reflecting this tradition, the A-70 also implements latest technology such as the ultra low-noise instrumentation amplifier principle realized in a discrete configuration, along with optimized signal input and power amplification stages, resulting in an astonishing 127 dB S/N ratio (at -12 dB gain), surpassing even the formidable earlier Accuphase stereo amplifier lineup.

    ACCUPHASE A-70

    The output stage of the A-70 features power MOS-FETs renowned for their excellent frequency response, sonic performance, and superior reliability. In the output circuitry, ultra-heavy-gauge edgewise coils with a surface area more than three times larger than conventional units, combined with MOS-FET switches are used in place of relays, to eliminate mechanical contacts and improve long-term reliability. Top-grade materials, sophisticated circuit pattern technology, and various other measures result in low impedance and enable the realization of a damping factor of 800, which represents a two-fold improvement over the A-65.

    ACCUPHASE A-70

    • Pure Class A operation delivers quality power: 60 watts x 2 into 8 ohms
    • Power MOS-FET output stage features 10-parallel push-pull configuration and delivers linear high power progression to ultra-low 1-ohm impedances
    • Ultra low-noise instrumentation amplifier principle used in input stage
    • Amplification stage implements further evolved MCS+ topology
    • Current feedback principle combines stable operation with outstanding sound quality
    • Bridged connection mode allows upgrading to monophonic amplifier
    • Two selectable meter types: digital power meters showing true power values and bar graph indicators

    ACCUPHASE A-70

    Specifications of ACCUPHASE A70

    Total Harmonic Stereo operation (both channels driven)
    Distortion 0.07% with 2 ohm load
    0.03% with 4 to 16 ohm load
    Monophonic operation (bridged connection)
    0.05% with 4 to 16 ohm load
    ●Intermodulation Distortion 0.01%
    ● Frequency Response At rated output: 20 - 20,000 Hz +0, -0.2 dB
    At 1 watt output: 0.5 - 160,000 Hz +0, -3.0 dB
    ●Gain 28.0 dB (with GAIN selector at MAX)
    (Stereo and monophonic operation)
    ●Gain Selection MAX, -3 dB, -6 dB, -12 dB
    ●Output Load impedance
    Stereo operation: 2 to 16 ohms
    Monophonic operation: 4 to 16 ohms
    With music signals only, 1-ohm loads are
    permissible for stereo operation and 2-ohm loads
    for monophonic operation.
    ●Damping Factor 800
    ● Input Sensitivity (with 8-ohm load, GAIN selector in MAX position)
    Stereo operation: 0.87 V for rated continuous average output (60 W)
    0.11 V for 1 watt output
    Monophonic operation: 1.74 V for rated continuous average output (240 W)
    0.11 V for 1 watt output
    ● Input Impedance Balanced: 40 kilohms Unbalanced: 20 kilohms
    ●Signal-to-Noise Ratio (A-weighted, input shorted)
    121 dB (GAIN selector at MAX)
    127 dB (GAIN selector at -12 dB)
    At rated continuous average output
    ● Output Level Meters (digital indication and bar graph)
    Digital meters: 5-digit indication, selectable range (10 W / 100 W / 1000 W)
    Bar graph meters: 32-point scale
    Hold time: 1 second/∞, switchable
    *Display off setting provided
    *Monophonic operation: same value for left/right
    ●Power Requirements AC 120 V/230 V, 50/60 Hz
    (Voltage as indicated on rear panel)
    ●Power Consumption 280 watts idle
    530 watts in accordance with IEC 60065
    ●Maximum Dimensions Width 465 mm (18-5/16")
    Height 238 mm (9-3/8")
    Depth 515 mm (20-1/4")
    ●Mass 44.3 kg (97.7 lbs) net
    54.0 kg (119.0 lbs) in shipping carton

    SAIGON HD cam kết toàn bộ sản phẩm do chúng tôi cung cấp ra thị trường đều là Hàng chính hãng, được phân phối chính thức tại thị trường Việt Nam. Nếu Quý khách hàng phát hiện ra bất kỳ sản phẩm nào sai cam kết trên, chúng tôi chấp nhận chịu trách nhiệm trước pháp luật và đền bù thiệt hại đến Quý khách hàng.

    Total Harmonic Stereo operation (both channels driven)
    Distortion 0.07% with 2 ohm load
    0.03% with 4 to 16 ohm load
    Monophonic operation (bridged connection)
    0.05% with 4 to 16 ohm load
    ●Intermodulation Distortion 0.01%
    ● Frequency Response At rated output: 20 - 20,000 Hz +0, -0.2 dB
    At 1 watt output: 0.5 - 160,000 Hz +0, -3.0 dB
    ●Gain 28.0 dB (with GAIN selector at MAX)
    (Stereo and monophonic operation)
    ●Gain Selection MAX, -3 dB, -6 dB, -12 dB
    ●Output Load impedance
    Stereo operation: 2 to 16 ohms
    Monophonic operation: 4 to 16 ohms
    With music signals only, 1-ohm loads are
    permissible for stereo operation and 2-ohm loads
    for monophonic operation.
    ●Damping Factor 800
    ● Input Sensitivity (with 8-ohm load, GAIN selector in MAX position)
    Stereo operation: 0.87 V for rated continuous average output (60 W)
    0.11 V for 1 watt output
    Monophonic operation: 1.74 V for rated continuous average output (240 W)
    0.11 V for 1 watt output
    ● Input Impedance Balanced: 40 kilohms Unbalanced: 20 kilohms
    ●Signal-to-Noise Ratio (A-weighted, input shorted)
    121 dB (GAIN selector at MAX)
    127 dB (GAIN selector at -12 dB)
    At rated continuous average output
    ● Output Level Meters (digital indication and bar graph)
    Digital meters: 5-digit indication, selectable range (10 W / 100 W / 1000 W)
    Bar graph meters: 32-point scale
    Hold time: 1 second/∞, switchable
    *Display off setting provided
    *Monophonic operation: same value for left/right
    ●Power Requirements AC 120 V/230 V, 50/60 Hz
    (Voltage as indicated on rear panel)
    ●Power Consumption 280 watts idle
    530 watts in accordance with IEC 60065
    ●Maximum Dimensions Width 465 mm (18-5/16")
    Height 238 mm (9-3/8")
    Depth 515 mm (20-1/4")
    ●Mass 44.3 kg (97.7 lbs) net
    54.0 kg (119.0 lbs) in shipping carton

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