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Ooberpad announces the availability of the feature-packed Accuphase M-6200 Monophonic Power Amplifier. The M-6200 approaches the concept of the power amplifier from a new vantage point. It achieves a remarkable level of performance that again redefines what a monophonic power amplifier can be. Retaining the parallel arrangement of two completely identical amplification circuits, the M-6200 radically cuts down the noise floor and improves the damping factor. The parallel operation has the benefit of superbly bolstering output current capability, as well as enabling extremely low output impedance. Furthermore, enhancements to the NFB circuit leveraging remote sensing and other technological refinements result in a damping factor in excess of 1,000 and make the amplifier capable of delivering constant current down to extremely low impedance loads. In the input stage, parallel operation along with optimized gain allocation keeps noise levels to a barely perceptible level, as illustrated by the surprising S/N ratio of 127 dB at maximum gain and 133 dB at the -12 dB gain setting.

The balanced input stage circuitry features instrumentation amplifier topology such as used in high-precision measuring equipment. This approach ensures perfectly matched input conditions for the positive and negative side of the signal and thereby allows the realization of high-performance balanced signal transmission.

The input stage of the amplifier section features another Accuphase innovation: MCS+ (Multiple Circuit Summing). This innovative method further reduces noise and at the same time helps to ensure rock-stable performance.
The M-6200 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. The principle provides excellent stability and is ideally suited to power amplifiers that handle signals ranging from extremely low to dynamic, high-volume levels.
| Brand & Model # | Accuphase M-6200 |
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Continuous Average Output Power (20 - 20,000 Hz) |
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| Total Harmonic Distortion |
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| Inputs/Outputs |
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Frequency Response |
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| Gain |
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| Gain Selection |
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| Output Load Impedance |
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| Input Sensitivity (with 8-ohm load) |
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| Input Impedance |
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| Signal-to-Noise Ratio (A-weighted, with input shorted) |
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| Output Level Meter |
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| Power Consumption |
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| Maximum Dimensions |
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| Weight |
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Ships within 48 hours · Estimated delivery Jun 22 - Jun 27
US$40
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