QUALITON Phono

QUALITON Phono.

Phono MM de tubo de vacío de categoría premium con tarjeta opcional para MC

€3,300.00
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QUALITON Phono. Premium class vacuum tube phono MM with optional card for MC

A premium category vacuum tube phono stage with extremely low distortion and noise, made to complement the Qualiton series. At its input, the device can receive low-level signals from moving magnetic cartridges. Optionally with an additional charge, with the help of the exchangeable card on the rear panel, the circuit can be reconfigured, in this way, the device will be able to process signals from moving coil cartridges. In the signal transmission circuit, the signal processing is carried out by the Tungsram ECC83 as well as the double Tesla E88CC triodes. Standard RIAA correction is performed using a classic passive network between the amplification stages. In this case, we do not use negative feedback. The nominal input sensitivity of the device is 5 mV. In response to an input signal with an effective value like this, an effective output signal value of nominal 500 mV can be measured at the output ports.

To achieve the lowest possible noise level, we have designed a stabilized external power supply for the device with high-capacity filter capacitors and high-quality connectors. In this sense, we were also not willing to settle for any compromises, considering that this construction is much more advantageous than a usual configuration. In the case of the latter, the stray magnetic field from the power supply transformer has a significantly adverse effect on the signal-to-noise ratio of the signal transmission circuit, directly deteriorating the musical experience.

Technical characteristics:

Nominal output level: 500 mV

Input sensitivity - with MM card: 5 mV, at nominal output level

Input sensitivity - with MC card: 0.4 mV, at nominal output level

Number of input ports: 1 MM level input per channel or optionally 1 MC level input per channel

Number of output ports: 1 line level output per channel, with a nominal output level of 500 mV

Max. input signal - with MM card 100 mV

Max. input signal - with MC card 2 mV

Gain - with MM card +40 dB, (f = 1 kHz)

Gain - with MC card +62 dB, (f = 1 kHz)

Total harmonic distortion - with MM card <0.07%, (f = 1 kHz, input level: 5 mV)

Total harmonic distortion - with MC card <0.2%, (f = 1 kHz, input level: 0.4 mV)

Frequency response: 20 Hz - 20 kHz, (-0.3 dB)

Input impedance - with MM card 47 kOhm

Input impedance: with MC card 145 ohms

Signal to noise ratio: with MM card> 70 dB

Signal to noise ratio: with MC card> 65 dB

Required tubes: 4 x Tungsram ECC83; 2 x Tesla E88CC

Weight: 5.4 kg

Dimensions: 35 x 8 x 30 centimeters

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