Rega Aura MC Phono Stage

Introducing the new Aura MC Phono Stage

Sheer brilliance and nothing less, from Rega of course!

The reference Aura MC stage is the culmination of decades of electronic design development. Rega has created the ultimate, fully adjustable, three-stage, all symmetrical pre-amplifier designed purely to extract the very best performance from your moving coil cartridge and vinyl playback system.

DESIGN INNOVATION

Built into a completely re-designed custom case, the Aura is dedicated to moving coil cartridges and stays clear of any compromises. Rega has avoided including any superfluous functions as they obstruct the signal path and degrade the sound quality.

The Aura phono pre-amp incorporates remarkable and innovative design ideas. If you are a vinyl connoisseur, then the Aura MC is an absolute must for demonstration.

FIRST STAGE

The first stage is a symmetrical, complementary class A amplifier, using parallel connected Linear Systems ultra-low noise FET (Field Effect Transistor) transistors configured as a symmetrical compound pair input stage. The use of FET transistors ensures there is no bias current flowing in the cartridge coil so as not to upset the delicate magnetic geometry of the cartridge.

The input circuit configuration also alleviates the use of any coupling components between the cartridge output and the input stage FET transistors, which would degrade the sound.

Complementary ultra-low noise FET transistors are carefully graded and matched for optimum performance. This stage drives the passive high-frequency part of the RIAA equalisation stage.

SECOND STAGE

The second stage is a symmetrical, class A, differential amplifier with a common base driver stage; this is also used as the active amplifier in the low-frequency part of the RIAA equalisation stage.

THIRD STAGE

The third stage inverts the signal to provide the balanced output along with the output of the second stage; using the same circuit topology as used in the second stage. Power supply is a symmetrical, discrete tracking power supply using fast diodes and a low noise voltage reference.

Each stage has its own localised power supply and LED referenced current generators. To maximise headroom, the Aura has a power supply voltage, which is 60% higher than normally found in such a pre-amplifier.

Very high quality, polypropylene capacitors have been used in the signal path. 1% tolerance polypropylene capacitors are used in the RIAA EQ stages and audio grade capacitors are used in the rest of the circuit. Gain, Mute and Mono switching is implemented using high-quality relays.

Product  Features

• Three stage, all symmetrical pre-amplifier
• Compatible with all typical low output moving coil cartridges
• Fully adjustable

Technical Specifications

Input Load
50, 100, 150, 300 & 400 Ω

Capacitive Load
1000, 2000, 3200, 4300, 5700 pF

RIAA Accuracy
0.2 dB 100 Hz to 50 kHz

Frequency Response
13.5 Hz (-3 dB) to 100 kHz (-0.2 dB)

THD
0.03%

Input Sensitivity
​69.5 dB (Gain Setting I), 63.5 dB (Gain Setting II)

Dimensions (W x H x D)
350 x 435 x 88 mm

Weight
13 kg

*This information has been obtained from Manufacturers website. We advice that Features & Specifications are subject change from Manufacturer without notice.

E&OE