Krell Vanguard Universal DACThe Vanguard Universal DAC is the first standalone DAC from Krell in over 20 years and it reignites the Krell digital legacy incorporating the latest in digital connectivity and technology. Enabling the Preamp option from the menu will add full volume control capability and it becomes the first digital only preamplifier from Krell coupled with classic Krell analog circuitry. The Vanguard Universal DAC is a perfect centerpiece for an all digital two channel system.