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    / Integrated Amplifiers / Audio Analogue / Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier
    Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier-Black Finish-No Thank you-Audio Influence
    Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier-Silver Finish-No Thank you-Audio Influence
    Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier-Audio Influence
    Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier-Audio Influence

    Audio Analogue

    Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier

    $19,499.00
    Colour
    Colour: Black Finish
    RR version with analog relays/resistors volume control
    RR version with analog relays/resistors volume control: No Thank you
     
    This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
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    Audio Analogue Maestro 150W Integrated Amplifier

    150W Zero Feedback Integrated Amplifier designed by AIRTECH, with RC10000 remote control.

    Maestro Anniversary was born in AIRTECH's laboratories following to the experience gained with the development of Puccini Anniversary. The basic scheme is very similar, but with one important difference: the amplification chain is fully balanced from the input to the power stage which becomes unbalanced to connect to the speakers. This took to a doubling of amplifier stages and attenuation. Also in the Maestro Anniversary all stages are without global feedback. The feedback is not even used on preamp stage(as in Puccini). The output power was increased to 150W on 8Ω with the consequent adjustment of all the driver and power stages that now use four pairs of transistors per channel. The basic configuration remains inverted cascode that is comparable to a single gain stage followed by the output buffer. The stability of the working point is maintained through a DC Servo that begins to work only at frequencies below a few tenths of Hertz (then totally out of the audio band). Thanks to a so refined circuitry, along with the selection of components of the highest level (military standard resistors, polypropylene audio grade capacitors custom made for AIRTECH, internal wiring with 7N OCC copper and pure copper output connectors) helped to create an amplifier that has the honour of being the heir of the glorious Maestro Integrated and therefore fully joins the Anniversary line celebrating at the same time, the first 20 years of Audio Analogue, but also 15 years by the introduction of AUDIO ANALOGUE's first product to bear the Maestro name. The new Maestro Anniversary is a unique amplifier, its remarkable power that always doubles with decreasing impedance and its extraordinary driving skills, are accompanied by a unique musicality and refinement not common for so “muscular” amps. Unfortunately it is not easy to express in words all its peculiarities and therefore we invite you to listen to it as soon as possible and can only confirm that now more than ever MUSICA MAESTRO!!!

    Technical description

    The amplifier is fully thought of as composed of three separate elements. 1. Power. It 'made with a 600VA transformer for each channel. The rectifier bridge is realized with discrete diodes ultrafast 50A each. The filtering capacity is 16800μF by branch so the amplifier has a total filter of 67200μF. At the switching on, the inrush current is limited by resistors variable with the temperatures that after the powering are excluded from the signal path. 2. Amplifier. There are two amplifiers (right channel and left channel) totally separated each another both as ground, as power supply stages connections. They have no common link. Even the digital commands for the control of volume chip are optically isolated. It's real a dual mono configuration. The copper footprints of the PCB have a double thickness compared to the standard to ensure the passage of large currents involved. The routing of the PCB has long been studied to optimize the signal paths and maintain the symmetry of the stages. 3. Preamplifier. Just like the power amp circuits also preamplifiers are dual mono. Immediately behind the input connectors there are relays for the channels switching followed by a discrete components buffer, to isolate the amplifier from the source. The maximum acceptable input voltage is approximately of 6VRMS. The buffers, both balanced as for the inputs as for the outputs, ranging for driving in class A the four(for each channel) volume chips. The latter, as in the case of the Puccini are simply strings of resistors without any operational inside them. This choice was made to not have any kind of global feedback within the Maestro. After the volume control stage we have the real preamp that amplifies up to about 12dB. The three elements described above are physically housed on three separate boards so it's like having a power supply, a preamplifier and a separate power amp.
    The amplifier is fully thought of as composed of three separate elements. 1. Power. It 'made with a 600VA transformer for each channel. The rectifier bridge is realized with discrete diodes ultrafast 50A each. The filtering capacity is 16800μF by branch so the amplifier has a total filter of 67200μF. At the switching on, the inrush current is limited by resistors variable with the temperatures that after the powering are excluded from the signal path. 2. Amplifier. There are two amplifiers (right channel and left channel) totally separated each another both as ground, as power supply stages connections. They have no common link. Even the digital commands for the control of volume chip are optically isolated. It's real a dual mono configuration. The copper footprints of the PCB have a double thickness compared to the standard to ensure the passage of large currents involved. The routing of the PCB has long been studied to optimize the signal paths and maintain the symmetry of the stages. 3. Preamplifier. Just like the power amp circuits also preamplifiers are dual mono. Immediately behind the input connectors there are relays for the channels switching followed by a discrete components buffer, to isolate the amplifier from the source. The maximum acceptable input voltage is approximately of 6VRMS. The buffers, both balanced as for the inputs as for the outputs, ranging for driving in class A the four(for each channel) volume chips. The latter, as in the case of the Puccini are simply strings of resistors without any operational inside them. This choice was made to not have any kind of global feedback within the Maestro. After the volume control stage we have the real preamp that amplifies up to about 12dB. The three elements described above are physically housed on three separate boards so it's like having a power supply, a preamplifier and a separate power
    amp.

    Optional Upgrade R/R Relays and Resistors Volume Control  

    Analog Relays /Resistors volume  control solves the following problems:

    • allows remote adjustment with remote control;

    • guarantees a high purity of the signal and a service life of 10 million drives through the use of high quality signal relays and precision military resistors;

    • reduces "click" and "pop" disturbances typical of relay controls;

    • maintains a perfect balance between right and left channels even at low listening levels;

    • does not use op amps on the signal path to maintain our "Zero Global Feedback" philosophy.

    Technical features

    Channels  2
    RCA inputs  3
    XLR inputs 2
    Input impedance 47KOhm
    Maximum input signal 6Vrms
    Power on 8Ω load 150W @ 1% THD + N
    Power on 4Ω load 300W @ 1% THD + N
    Power on 2Ω load 500W @ 1% THD + N
    Sensitivity(8Ω output nominal power)720Rrms
    Frequency Response(Att. 0dB, -3dB band) 90KHz
    Output resistance(2Ω nominal power and 1kHz) 0.2Ohm
    Input Noise(Band limits 0Hz-80kHz/A-weighted)=20µV/=10µV
    SNR=100 dB
    Standby power consumption(230VAC) 0.7W
    Dimensions(HxWxD)168x450x550 mm
    Weight 31 Kg
    Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier-Black Finish-No Thank you-Audio Influence

    Audio Analogue “Maestro Anniversary” 150W Zero Feedback Integrated Amplifier

    Black Finish / No Thank you
    $19,499.00
    Need help?

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    At Audio Influence, our mission is to ensure your auditory bliss. With a team of dedicated audio engineers and enthusiasts, we're committed to delivering top-notch audio solutions. Whether you're upgrading your home theater, refining your studio setup, or enhancing your personal listening experience, we're here to help.

    Call us on: (03) 7068 7678

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    Currently, we only ship within Australia. We are working on expanding our shipping options to include international destinations in the future.


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