salwani Posted December 29, 2009 Share Posted December 29, 2009 Just saw this on Avantgarde Acoustics' website - a press flyer for a firewire (and other input) battery power supply dac : interesting ! • Fully discrete voltage-to-current converter (no OPs and ICs in analog signal path) • State of the art Burr & Brown multibit converter chipset • 2 times analog oversampling and 4 times digital oversampling (176.4 kHz x 2 = 352.8 kHz total oversampling) • Ultra precision VCXO master clock • Discrete CLASS A operation • Zero feedback • Fully symmetrical • Battery power supply • 4 inputs (FIREWIRE, TOSLINK, AES/EBU, SPDIF) [br]Mac Mini > Lio-8 > Graaf Gm-20 > Stax ESL-F83x[br]Ipod / Wadia Dock / Wadia 830 > ULN-2 > Krell KAV400xi > B&W 805 Link to comment
The Computer Audiophile Posted December 29, 2009 Share Posted December 29, 2009 Sounds interesting. Any links? Founder of Audiophile Style | My Audio Systems Link to comment
Wavelength Posted December 29, 2009 Share Posted December 29, 2009 Chris, I am old friends of the line as I brought the first pair of their Trio horns into the US back in the early 90's. Mathias has been working on the dac for some time. The Digital Input portion was designed by Weiss and the dac and output section is all Mathias's design. I would imagine it is pretty good design as the entire Avantgarde team is very good. Thanks Gordon J. Gordon Rankin Wavelength Audio http://www.usbdacs.com/ http://www.wavelengthaudio.com/ http://www.guitar-engines.com/ Link to comment
salwani Posted December 29, 2009 Author Share Posted December 29, 2009 http://www.avantgarde-acoustic.de/download/files/1210261650482320926f9e1.pdf [br]Mac Mini > Lio-8 > Graaf Gm-20 > Stax ESL-F83x[br]Ipod / Wadia Dock / Wadia 830 > ULN-2 > Krell KAV400xi > B&W 805 Link to comment
manisandher Posted December 29, 2009 Share Posted December 29, 2009 It's nice to see more maufacturers (returning to?) using multibit converters. I've never been able to live with any of the delta-sigmas that I've heard... Mani. Main: SOtM sMS-200 -> Okto dac8PRO -> 6x Neurochrome 286 mono amps -> Tune Audio Anima horns + 2x Rotel RB-1590 amps -> 4 subs Home Office: SOtM sMS-200 -> MOTU UltraLite-mk5 -> 6x Neurochrome 286 mono amps -> Impulse H2 speakers Vinyl: Technics SP10 / London (Decca) Reference -> Trafomatic Luna -> RME ADI-2 Pro Link to comment
Bob Stern Posted December 30, 2009 Share Posted December 30, 2009 The specification "exactly even-numbered 4 times digital oversampling to 176.4 kHz" implies that it can only accept 44.1 KHz sample rate data. In other words, it cannot play music encoded at 48 or 96 KHz because it has only a single, fixed clock. HQPlayer (on 3.8 GHz 8-core i7 iMac 2020) > NAA (on 2012 Mac Mini i7) > RME ADI-2 v2 > Benchmark AHB-2 > Thiel 3.7 Link to comment
PierreDLC Posted December 30, 2009 Share Posted December 30, 2009 44.1 only ? quite strange. If interface has been conceived in collaboration with Weiss (the AvantGarde integrates FW800 input), it should target any sample rates up to 192 Khz / 24 bits. Any information about price and date of availability ? Best regards MPB/iTunes + Audirvana / Amarra / AVS 3D - Accuphase E 550 / DAC 30 - Apertura Altra Signature Link to comment
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