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AUDIO ANALOGUE ABsolute Preamplifier
Line preamplifier. ZERO FEEDBACK designed by AIRTECH.
Channels: 2
Input impedance: 47 kΩ
Gain: 5.58 dB (RCA), 11.62 dB (XLR)
Frequency response: 200 kHz (-0.5 dB)
Signal-to-Noise Ratio (SNR): Up to 102.3 dB (A-weighted)
Standby power consumption: 0.7W (230V)
Includes RC10000 remote control
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AUDIO ANALOGUE ABsolute Preamplifier
Line preamplifier. ZERO FEEDBACK designed by AIRTECH
New ABsolute preamplifier: Line preamp with inductive power supply, completely dual-mono construction starting by the power transformers, all stages are on separate boards. Native balanced circuits, zero feedback and discrete components
Inductive power supply to minimise main noise and two transformers of about 50 W 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 full dual-mono configuration from the power supply.
The preamplifier boards are mechanically shielded from the power supply section.
Relay volume control which 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 within a semiconductor.
Relay input switches to minimise non-linearities and disconnect unused inputs.
SeGeSTA proprietary gain stage structure.
Traditionally mounted military resistors oversized to minimise thermal distortion.
Audiograde capacitors.
Three stereo RCA inputs.
Two balanced stereo inputs.
Two stereo RCA outputs.
Two stereo XLR outputs.
Managed by a microcontroller.
Internal wiring and Airtech power cable.
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 0 dB, -0.5 dB band: 200 KHz
Balanced Output Noise
Band limits 20Hz-80kHz: 20.4µV
Balanced output noise
A-weighted: 7.7 µV
Signal to Noise Ratio (SNR)
Attenuation at 0dB, A-weighted, 1Vrms referenced
93.8dB(20Hz - 80kHz)
Signal to Noise Ratio (SNR)
Attenuation at 0dB, A-weighted, referenced to 1Vrms
98.3 dB(20 Hz - 22 kHz)
Signal to Noise Ratio (SNR):
Attenuation at 0 dB, A-weighted, 1 Vrms referenced
102.3 dB(A-weighted)
Standby power consumption
230VAC
0.7W
Dimensions
H x W x D: 140x480x385mm
Weight: 22kg
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