The Project Phono Box RS2 sets out to be the ultimate phono preamplifier, in the highest class. It is a fully discrete, fully balanced dual-mono device with split passive RIAA and DECCA equalisation, resulting in a โno expense sparedโ phono stage designed to achieve the best possible sound. It is also extensively adjustable, suiting it to any system, environment or personal listening taste.
Inputs and Outputs
Being the ultimate phono preamplifier, the Phono Box RS2 is fully balanced from the input to the output. All electronics are fully discrete, and no op-amps are used. Equipped with balanced XLR and unbalanced RCA inputs and outputs.
Employing a true fully balanced design principle. Balanced transmissions consist of a hot and a cold (also called + and -) signal. Both the + and โ signal chains effectively carry the same musical information. A true balanced amplifier can now extract the final musical information out the +/- signals and subtract, remove, all noise that could potentially be added along the transmission.
Innovative Technology
The Phono Box RS2 uses split passive equalisation for both of its RIAA and DECA curves. This is more costly to design and implement but ensures the most accurate representation of the ideal EQ curve. Split passive equalisation allows for better impedance matching and lower deviation from the ideal RIAA or DECA curve.
Extreme Cartridge Loading Options
No other phono-preamp in the world has such fine options of setting the gain like the Phono Box RS2. Very large ranges from 40dB (voltage amplification by 100x) up to 70dB (voltage amplification by 3690x) are possible.
As an addition, the Phono Box RS2 has an all new feature, a potentiometer allows you to adjust the exact centre of the sound stage in ranges of 2dB to the left or right.
The Finished Product
The Phono Box RS2’s construction brings very good rigidity and splendid isolation against interferences. You can purchase the device in either black or silver.
Technical Specifications
- INPUT IMPEDANCE (MM): 47 kฮฉ
- INPUT IMPEDANCE (MC): Variable 10 – 1000 ฮฉ
- PHONO STAGE CAPACITANCE (MM): Switchable 50, 100, 150, 200, 250, 300 350 or 400 pF
- PHONO STAGE GAIN (MM): 40, 43, 50 dB
- PHONO STAGE GAIN (MC): 60, 63, 66, 70 dB
- PHONO STAGE EQUALIZATION OPTIONS: RIAA + DECCA
- THD (MM INPUT): < 0.0015 %
- RCA INPUT(S): 1
- BALANCED XLR INPUT(S): 1
- FIXED ANALOGUE OUTPUT(S): 1 x RCA Pair, 1 x XLR Pair
- DIMENSIONS (W X H X D): 206 x 72 x 200 mm
- WEIGHT: 1.6 kg
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