Accuphase A-36 Class-A Stereo Power Amplifier

₹ 799,999.00

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Ooberpad announces the availability of the power-packed Accuphase A-36 Class-A Stereo Power Amplifier. The new A-36 inherits many of the outstanding design technology features developed for the higher-end models. It redefines the baseline for pure class-A power amplifiers and embodies the same unflinching attention to detail and dedication to sound quality for which Accuphase is justly famous. In the output stage, power MOS-FETs renowned for their excellent frequency response, sonic performance, and superior reliability are used in a triple parallel configuration and driven in pure class A. This is sustained by the strong power supply featuring a massive transformer and two large 47,000μF filtering capacitors. Output power in each channel is rated for an impressive 150 watts into 1 ohm, 120 watts into 2 ohms, 60 watts into 4 ohms, and 30 watts into 8 ohms. Even speakers with ultralow impedance or drastic fluctuations in impedance curve can be driven reliably by this impressive amplifier. In the output circuitry, MOS-FET switches are used in place of relays, to cut out mechanical contacts and improve long-term reliability.

Warranty

1-year manufacturer's warranty

Key Features:

  • Pure Class A operation delivers quality power: 30 watts x 2 into 8 ohms
  • Power MOSFET output stage features 3-parallel push-pull configuration
  • 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
  • Strong power supply with massive high-efficiency transformer and large filtering capacitors
  • 4-stage gain control

        Benefits of Accuphase A-36 Class-A Stereo Power Amplifier:

        Instrumentation amplifier topology for fully balanced signal paths
        Instrumentation amplifier topology for fully balanced signal paths

        The instrumentation amplifier principle ensures that all signal paths from the inputs to the power amp stage are fully balanced. This not only results in excellent CMRR (Common Mode Rejection Ratio) and minimal distortion, it also makes the amplifier highly resistant against external noise and other external influences. The result is a drastic improvement in operation stability and reliability.

        Current feedback principle assures excellent phase characteristics in high range
        Current feedback principle assures excellent phase characteristics in high range

        The A-36 uses the output signal current rather than voltage for feedback. Since the impedance at the current feedback point is very low, there is almost no phase shift. A minimal amount of NFB therefore results in maximum improvement of circuit parameters.

        Further refined MCS+ topology for even lower noise

        Accuphase’s original MCS (Multiple Circuit Summing) principle uses a number of identical circuits connected in parallel to achieve superior performance characteristics.

        Where to buy?
        Buy the Accuphase A-36 Class-A Stereo Power Amplifier online at the best price in Mumbai, Delhi, Bangalore, Chennai and all across India. Enjoy expert, prompt and courteous customer service from the Ooberpad team. We will help you choose better and give you all the support you need to take the right buying decision in India.

        Technical Specifications of Accuphase A-36 Class-A Stereo Power Amplifier:

        Brand & Model # Accuphase A-36
        Continuous Average Output Power (20 - 20,000 Hz)
        Note: Load ratings marked (*) apply only to operation with music signals.
        • Stereo operation 150 watts per channel into 1 ohm (*) (both channels driven) 120 watts per channel into 2 ohms 60 watts per channel into 4 ohms 30 watts per channel into 8 ohms
        • Monophonic operation (bridged connection): 300 watts into 2 ohms (*) 240 watts into 4 ohms 120 watts into 8 ohms
        Total Harmonic Distortion
        • Stereo operation (both channels driven): 0.05% 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
          • 400
          Input Impedance
          • Balanced: 40 kilohms
          • Line: 20 kilohms
          Signal-to-Noise Ratio (A-weighted, with input shorted)
          • 112 dB (GAIN selector at MAX)
          • 120 dB (GAIN selector at -12 dB) At rated continuous average output
          Output Level Meters
          • -40 dB to +3 dB (indication in dB and %) Logarithmic scale
          • Operation selector: OFF / NORMAL / HOLD (∞) Meter sensitivity selector (-20 dB) *Monophonic operation: same value displayed for left/right
          Power Consumption
          • 155 watts idle
          • 270 watts in accordance with IEC 60065
          Maximum Dimensions
          • Width 465 mm (18.31")
          • Height 171 mm (6.73")
          • Depth 425 mm (16.73")
          Weight
          • 22.8 kg (50.27 lbs) net

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