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Product Description:
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MAESTRO DUECENTO
POWER AMPLIFIER
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Sublime Harmony The ideas driving our designers' work are a sound of great clarity that, without sacrificing any detail, provides high emotional involvement; recreation of the complete musical scene; good control of timbre in the low frequencies; smooth presence in the mid range and airy purity in the high frequencies. The sonic performance of the Maestro Duecento is as close as possible to the ideal of the best reproduction possible today.
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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Parameter
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Value
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Dimensions (Nota1)
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10,3 x 17,5 x 18,1 “
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Weight
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144,4 Lbs
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Sensitivity Unbalanced Input (Nota13)
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1,5 Vrms
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Sensitivity Balanced Input (Nota13)
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3,0 Vrms
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THD + N (1W, 8Ohm 1 KHz)
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0,03 %
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Slew Rate (Nota11)
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50 V/μs
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Frequency Response (Nota2)
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1 Hz - 160 KHz
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Noise Level (Nota10)
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-130 dB
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SNR (Nota9)
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> 100 dB
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Output power (Nota4)
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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
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2 Unbalanced / Balanced Inputs
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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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