Restek MINIRIA

Phono Preamplifier

€ 650,00 Price include 21% VAT Price exclude VAT € 537,19

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The phono stage is used to amplify the smallest voltages emitted by the pickup system and also to linearize the pre-equalized signals on the record. Internally, the MINIRIA consists of two separate identical mono preamps, each with two gain stages and passive and active RIAA equalization. The input sensitivity of the amplifier stages can be adjusted in a range from +32 dB to +64 dB to compensate for the volume differences of the different pickup systems. The phono preamp output drivers make the connections to the preamplifier . The low output resistance of 50 ohms and the maximum current of up to 35 mA rms of these driver stages enables correct line matching on the one hand and the use of sometimes unavoidably long connecting cables between the phono stage and the preamplifier on the other without the music signal being impaired by the cables. All parts of the electronics of the MINIRIA are DC-coupled, which makes it possible to transmit even the lowest frequencies. This means that even in the lower frequency spectrum, the transmission is distortion-free and phase-locked. Noise and crosstalk are only noticeable at the measurement limit.

Features

- Individually adjustable capacitive and ohmic impedances

- Customizable reinforcement

- German manufacturing

Specifications

- Frequency response: 10 Hz … 20 kHz (+-0.2dB)

- Distortion factor: < 0.005%

- Signal-to-noise ratio: > 99 dBA to > 76 dBA referred to 2 V rms nominal output voltage depending on gain

- Crosstalk attenuation: > 103 dB related to 2 V rms nominal output voltage

- Input impedance per input: 50 ohms … 680 ohms in 10 ohm steps and 47 kOhm

- Input capacitance per input: 100 pF … 600 pF in 50 pF steps

- Gain: +34dB … +66dB at 1 kHz in 4 dB steps

- Output level: 10 V rms max.

- Output current: 35 mA rms max.

- Output impedance: 50 ohms

- Dimensions (WxHxD): 140 x 64 x 178 mm

- Weight: about 1kg

- Front finishes:

- Highly polished acrylic glass, aluminum black, brushed champagne or silver matt, chrome-plated brass and special designs on request

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Restek MINIRIA

Phono Preamplifier