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MAESTRO DUECENTO
INTEGRATED AMPLIFIER
Sublime Harmony
The MAESTRO DUECENTO delivers 200 Watt in a 8 Ohm load. This power doubles every halving of the load
up to 2 Ohm. It’s equipped with 2 unbalanced input and 2 balanced inputs with selectable configuration. It has been designed with high-performance circuits solutions and high precision passive devices such as military resistors or double-side metallized polypropylene plastic film capacitors. Each channel has it’s own transformer, a 1300VA unit, and it’s own rectifing section realized with two discrete diodes bridges and two low ESR capacitors for a total of 44000μF. A great deal of effort went into the design and construction of the MAESTRO DUECENTO power amplifier. Used properly, it will give you many years of enjoyment!
Features
Two toroidal, 1300VA transformer, one per channel.
Dual mono design.
No capacitors in the signal path and only double-side metallized polypropylene film capacitor in the critical points.
The internal stages are DC coupled and the offset is reduced by means of an integrating amplifiers.
High current capability.
The protection and control sections are galvanically insulated from the analog sections to minimize the digital noise.
No mains fuse. The mains current is measured at the input of the transformer (with a current probe) and in case of malfunctions it’s shutted off.
The voltage of both channel is measured by means of optocoupler to avoid any ground loop.
The DC offset on the output (loudspeakers) is also monitored by means of optocouplers.
The protections are realized with a PLD (Programmable Logic Device); it’s faster and more reliable compared to a microcontroller. |
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Dimensions (Nota1) |
10,3 x 17,5 x 18,9 “ |
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Weight |
135,6 Lbs |
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Line gain |
12 dB |
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THD + N (1W, 8Ohm 1 KHz) |
0,03 % |
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Slew Rate (Nota11) |
50 V/μs |
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Frequency Response (Nota2) |
1 Hz - 160 KHz |
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Noise Level (Nota10) |
-130 dB |
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SNR (Nota9) |
> 100 dB |
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Output power (Nota4) |
200W / 8Ohm p.c. |
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400W / 4Ohm p.c. |
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800W / 2Ohm p.c. |
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Inputs |
5 Unbalanced Inputs + 1 Balanced Input |
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Outputs |
Tape Out |
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Notes:
Nota 1 - Height x Width x Depth (H x W x D)
Nota 2 - Attenuation 0dB, -3dB Band
Nota 3 - Attenuation: 0dB A weighted reffered to 8 Ohm load nominal power
Nota 4 - 1KHz input signal, two piloted channels
Nota 5 - Band limits 0Hz-40KHz
Nota 6 - Band limits 0Hz-22KHz
Nota 7 - Maximum rms voltage output value
Nota 8 - Attenuation 0dB, -3dB band, 1Vrms output
Nota 9 - Attenuation: 0dB A weighted reffered to 200W
Nota 10 - Band limits 0Hz-48KHz
Nota 11 - Full power Bandwidth limited
Nota 12 - Joined in AC for each phase to the common
Nota 13 - For 200W @ 8Ohm
Nota 14 - Attenuation: 0dB A weighted reffered to 50W
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