Description
Audio Analogue Donizetti : stereo Power Amplifier
The Donizetti Anniversary power amplifier, designed by
Airtech laboratories, proposes another historic products of
Audio Analogue. It is a high-powered stereo amp and with its
250W on 8Ω, that double by halving the impedance,
Donizetti is able to drive any speaker perfectly.
The amplifier has completely dual-mono configuration
starting from the two toroidal transformers of 1200 VA each,
specifically designed to have very low lost flow. It uses our
SeGeSTA configuration (Single Gain Stage
Transconductance Amplifier) followed by a group of four
transistors to provide all the necessary electricity without
affecting the performance of the gain stage.
The amplifier makes no use of global feedback. The
four-layer printed circuit board has been designed so that
the input signal never crosses the output signal and that the
amplification stages are as far as possible from the power
transformers. All the components are of the highest level:
military standards resistors, Airtech plastic capacitors, wiring
connections made of 7N OCC pure copper and gold plated
pure copper output connectors.
Donizetti Anniversary can also be used in mono bridge
configuration achieving even more extreme performance
and an output power that reaches over 1000W on 8ohm
impedance.
Zero feedback circuit, fully balanced stages, dual-mono and discrete component configuration, power stage with twelve bipolar transistors per channel, 56000µF filter capacity per channel, oversized military resistors to minimize thermal distortion, audiograde capacitors on Airtech specifications, microcontroller management. Available in natural aluminium and satin black.
Specifications :
Number of channels
2
RCA inputs
1
XLR inputs
1
Input impedance
47Kohm
Power on 8Ω load
250W(1000W mono)
Power on 4Ω load
500W(1700W mono)
Power on 2Ω load
950W(2200W mono)
Power stage gain
26dB
Sensibility
2.3Vrms
Frequency response
110KHZ
SNR
>110dB
Output resistance
nominal power on 8Ω at 1khz
nominal power on 8Ω at 1khz
0.15Ω
Input noise
0Hz-80kHz
0Hz-80kHz
≈10µV
Input noise
0Hz-80kHz – A weighted
0Hz-80kHz – A weighted
≈4µV
Standby power consumption
230VAC
230VAC
<1W
Dimensions
HxWxD
HxWxD
221x450x428 mm
Weight
41.2 Kg
