Description
Aria is an "all analog amplifier" with no digital control circuitry. The all-aluminum enclosure protects the internal circuitry from any RF interference. Our designers have avoided the use of any unnecessary devices, as they interfere with signal transmission and degrade sound quality. Many innovative design ideas have been implemented in Aria, including a self-regulating servo that maintains an optimal microphone input circuit by compensating for any fluctuations in ambient or operating temperature.
Product information
MM Stage design and features
The MM input uses low-noise bipolar input transistors, also configured as a stacked pair. Two separate power supplies are provided for each channel, as well as additional low-noise power supplies for each of the input circuits. Nichicon FG electrolytic capacitors were used in critical locations in all power supplies. Polypropylene capacitors were used in the signal path and equalization networks. Discrete circuitry is used throughout the signal path, which provides complete control over the circuitry.
Design and features of the MC microphone stage
The MC input uses parallel-connected low-noise field-effect transistors (FETs) configured as a complex pair. The use of FETs ensures that no bias current is generated in the cartridge coil so as not to disturb the delicate magnetic geometry of the cartridge. The MC input is selectable for a resistive input load of 70 Ω to 400 Ω and a capacitive load of 1000 pF to 4200 pF. The input sensitivity can be adjusted by 6 dB via the rear panel.
Both stages have their own separate input connectors and input preamplifier circuits. This allowed us to design an individual input circuit for each cartridge type without compromise. The signal is switched at a high level and low impedance (using a relay), which guarantees no signal degradation.
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