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Libretto HD, the battery powered, high-end CD player & 24/192 DAC
Previous version: Libretto TNT-Audio Review ( www.tnt-audio.com )
After a lengthy development, a system was built which is free from the umpteen harmonics that are incoherent distortion waves (your ear is very sensitive to these) - so we were able to produce essentially different quality sound than CD technology could at the time.
In the Libretto separate batteries were given to the digital and analog circuits. Not even DC/DC converter, which is also cause interference. The battery monitor and charger are fully automatic, they do not need to be given special care by the user.
Philips Pro2 Industrial mount directly connected rigidly onto Libra. There are no springs, rubber, uncertain suspension: all of the vibrations are redirected through the special lenses. The bamboo box functions as a truss.
This is followed by a unique hybrid solution 24bit 192kHz DAC with a very sophisticated analog circuitry. The specialized Jensen transformers from the U.S. transfer an output up to Megahertz range! The driver stage of the transformers do not contain any negative feedback.
The Libretto HD has a digital audio input which can accept standard S/PDIF signal through BNC or RCA connection (The BNC connection is strongly recommended)
Analog outputs are professional standard 600 ohm XLR and RCA connectors. (digital output isn't available on Libretto HD)
The whole housing made from high-grade, solid bamboo.