Previo De Phono Mm/mc Válvular Allnic H-1202 220v

Descripción

PREAMPLIFICADOR Previo De Phono Mm/mc Válvular ALLNIC H-1202 220v

Especificaciones:

The H-1202 is the upgraded model of the highly regarded phono stage H-1201. Like all Allnic Audio products, it uses Permalloy (iron and nickel alloy) for its transformer cores. CR type RIAA equalization of the H-1202 is precisely compensated within +/- 3dB. The H-1202 uses two high-quality NOS E180cc twin triode tubes per one channel for gain stage. And it also has an automatic, all tube voltage regulation circuit, ensuring exceptionally stable and quiet operation.

On the top of each channel’s MC transformer on the centre rear of the chassis deck of the H-1202, there is a rotating control. Turn the control knob to select from four gain factors: +22dB, +26dB, +28dB and +32dB. Combined with the H1202’s 40dB native gain, for MC there is 62dB, 66dB, 68dB and 72dB of gain available. Each of the second set of indicators on the top of the transformers only marks the impedance tied to the gain setting diagonal to it. The impedance and gain relationships are not user adjustable.

The H-1202 has the following features:

• High-quality NOS E180CC twin triode tubes for gain stage

• High-quality NOS 7233 and 5654 tube for voltage regulation

• CR type RIAA equalization, precisely compensated within +/- 3dB.

• High-quality Moving Coil Step-up Transformers with Permalloy cores

• MC transformers variable gain (+22dB, +26dB, +28dB and +32dB)

• No negative feedback design

• Pure Class A operation

Specifications

• Inputs:
Moving Coil (MC) × one (1) pair unbalanced (RCA)
Moving Magnet (MM) x one (1) pair unbalanced (RCA)

• Ground:
Two (2) x screw type terminals

• Outputs:
One (1) pair x unbalanced (RCA)

• Frequency (RIAA):
20Hz ~ 20KHz (±0.3dB)

• Voltage Gains:
MM +38dB (1kHz)
MC +22dB, +26dB, +28dB, +32dB (1kHz)

• Input Impedance:
MC up to 280O
MM 47kO

• Maximum Input Voltage:(MM, non-clipping):
20Hz 30mV
100Hz 60mV
1kHz 300mV
10kHz 500mV

• THD (Total Harmonic Distortion):
Less than 0.3% (1kHz, Output 1V)

• Output Impedance:
1.2kO (on-off method)

• S/N Ratio:
-68db (CCIR, 1kHz)

• Power Consumption:
20W – 110V /120V / 50Hz / 60Hz

• Tubes:
Four (4) x E180CC New Old Stock (gain stages, left and right channels)
One (1) x 7233 (Voltage Divider)
One (1) x 5654 (Voltage Corrector)

• Fuse:
AC 2A, 250V

• Dimensions:
310mm x 230mm x 140mm (W x D x H)

• Weight:
Unpacked : 4.5kg