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PIONEER A-70 USB Amplifier
2x90 Integrated Class D Digital Stereo Amplifier
AIR Studios tuning
ESS SABRE32 192 kHz/32-bit Audio DACMore Info...
ESS SABRE32 192 kHz/32-bit Audio DAC▲
Digital to analogue converter (DAC)
Converts the digital data signal into analogue signal that can be amplified and reproduced using speakers or headphones so that our ears can hear it.
In the case of video the data is converted into a video signal that can be reproduced by a display device so that we can see it.
Once data is converted to an analogue signal it then can degrade and lose its quality every step of the way. Most modern equipment is designed to keep data in the digital (Lossless) domain as long as possible.
In an ideal world data would be kept digital right up until the point that you see or hear it avoiding degradation.
Asynchronous USB Type-B DAC InputMore Info...
Asynchronous USB Type-B DAC Input▲
The rear-panel USB Type-B allows you to use the A70 as a high quality off-board USB Soundcard/DAC. Because it is asynchronous (Allowing clock timing data to be synced to the PC) it allows for Jitter Free audio up to 192kHz/32-Bit from a PC, that with the right software is bit-for-bit accurate.
Coaxial digital input
Phono (MM/MC) Turntable Input
Power amp direct inputMore Info...
Power amp direct input▲
By using this input you can bypass all of the controls on the A 70 including the volume control and use it just like a power amplifier
Twin Transformers in Separate Shield CasesMore Info...
Twin Transformers in Separate Shield Cases▲
Separate power transformers for the power amp and the pre amp are each shielded in separate blocks to help prevent magnetic leakage.
Source Direct ModeMore Info...
Source Direct Mode▲
By pressing this you can bypass the tone controls to give a clearer signal path for the audio.
Attenuator FunctionMore Info...
By pressing the attenuator button on the front panel, more subtle volume adjustments can be made.
Aluminium Volume, Input Selector, Balance, and Bass/Treble knobs