Audio Analogue AA Phono

Audio Analogue AA Phono

The new AAphono preamplifier is the latest product in the PureAA line. Just like the AAcento amplifier, it is a product that perfectly fits into the Audio Analogue philosophy:
• simple design,
• highest level of sound performance
• great care for the finish
• and for selection of the materials and parts
• remarkable ease of use

This all makes it a perfect partner for turntables and cartridges of any type and quality level, allowing you to extract more from your record collection.

Technical description
AAphono has been developed starting with a double operational amplifier configuration that permits sharing the total gain between the two amplifiers, giving a more precise RIAA response. A big effort was made to obtain a good result in this parameter using high quality and low tolerance components used in parallel configuration in order to uniform errors. In order to cancel inevitable LP fluctuations, a subsonic filter has been added between first and second amplifiers to avoid the strong low frequency oscillations, which would saturate the gain stages.
The circuit design has been completed with an offset recover in the last stage and multiple filters in the power supply stage. There are three different toroidal transformers to supply digital section and left and right analogue sections, keeping ground connections separated.
All passive components have been carefully selected. Capacitors used for RIAA curve equalization are all plastic film with low tolerance. AAphono is very versatile and simple to use. For MM cartridges it is possible to set the input's capacitance and resistance, while for MC cartridges, it is possible to set input's resistance. These regulations can be easily done simply pushing the corresponding buttons under the unit, just behind the front panel, without removing anything or without using many different switches. The selected configuration will remain settled also when the unit will be switched off or disconnected by the power network.

Technical features:
MM gain(@1KHz)
MC Gain(@1KHz)
Frequency response(+/-0.25dB)
10Hz - 20KHz
Standby power consumption(230VAC)
87, 220, 372 mm
5.8 Kg

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