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ABsolute Line Preamplifier
ABsolute Line Preamplifier
ABsolute Line Preamplifier
ABsolute Line Preamplifier
Audio AnalogueAuthorised distributor

ABsolute Line Preamplifier

line preamp

Series ABsolute

Based on the experience gained in the development of the premplification sections used on the various amplifiers manufactured in the most recent years, ABsolute is the evolution of our concept of line preamplifier at its highest level: the real heart of an amplification system.

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At a glance

All specifications
Channels
2
Weight
22 kg
Number of Channels
2
Input impedance
47 kΩ
Gain Unbalanced output
5,58 dB
Gain Balanced output
11,62 dB
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    Overview

    Inductive power supply to minimize main noise and two transformers of about 50W with electrostatic shielding, magnetic shielding and resin coating.

    Zero global feedback from input to output.

    Fully differential circuit (differential input and differential output).

    Each stage is on separate boards and in fully dual-mono configuration from the power supply.

    The preamp boards are mechanically shielded from the power supply section.

    Relay volume control that compared to semiconductor controls provides a significant improvement in distortion due to the quality of the resistors used compared to those that can be produced inside a semiconductor.

    Relay input switches to minimize non-linearities and disconnect unused inputs.

    Stage of gain with property structure SeGeSTA.

    Oversized traditional mounting military resistors to minimize thermal distortion.

    Audiograde capacitors.

    Three stereo RCA inputs.

    Two balanced stereo inputs.

    Two stereo RCA outputs.

    Two XLR stereo outputs.

    Managed by a microcontroller.

    Internal wiring and power cable Airtech.

    Specifications

    Channels
    2
    How many speakers it drives at once: 2 for stereo.
    Weight
    22 kg
    Per unit, out of the box.
    Model code
    AUDIO-ANALOGUE-ABSOLUTE-LINE-PREAMPLIFIER
    Quote it when you ask a specialist.

    Technical specifications

    Number of Channels
    2
    Input impedance
    47 kΩ
    Gain Unbalanced output
    5,58 dB
    Gain Balanced output
    11,62 dB
    Frequency Response Attenuation 0dB, -0.5dB band
    200 KHz
    Balanced Output Noise Band limits 20Hz-80kHz
    20.4µV
    Balanced Output Noise A-weighted
    7.7µV
    Signal/noise ratio (SNR) Attenuation at 0dB, A weighted, referred to 1Vrms
    93.8dB(20Hz – 80kHz)
    Signal/noise ratio (SNR) Attenuation at 0dB, A weighted, referred to 1Vrms
    98.3dB(20Hz – 22kHz)
    Signal/noise ratio (SNR) Attenuation at 0dB, A weighted, referred to 1Vrms
    102.3dB(A weighted)
    Stand-by power consumption 230VAC
    0.5W
    Dimensions HxWxD
    140x480x385mm
    Weight
    22kg

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