How to bypass Amanero in the Chord DAVE
As an avid longtime owner of the Chord DAVE DAC, I have enviously watched Lampizator Pacific owners surgically bypass the horribly high-latency Amanero USB chipset that came installed on their DAC courtesy of the JL Sounds XMOS board. It turns out that bypassing the Amanero bottleneck leads to what Emile describes as improved "boogie."
While I had generally been pleased with the performance of my DAVE with the Extreme, I was, of course, very curious to know just how badly Amanero was holding back the Extreme with this DAC and disappointed that this large-buffer USB chipset was the reason the Taiko ASIO USB driver could not be used with the DAVE. To put it simply, it drove me nuts.
As my 2 Chord DAVEs were already highly modified and their warranties already voided, I was not against exploring such a bypass even if it meant sacrificing one of my DAVEs and a small group of us DAVE owners did explore this. Before there was an opportunity to "surgerize" one of our DAVEs, however, Emile, who recently added a DAVE to his growing collection of DACs suggested using a USB-to-SPDIF bridge since entering DAVE via SPDIF would be one way of bypassing its Amanero USB chipset. Because the magic of DAVE lies in feeding this DAC upsampled 705/768kHz PCM material, such a bridge would need to have dual SPDIF (BNC) outputs capable of an aggregate 768kHz bandwidth which is not something you see everyday. Emile figured he would have to design one himself.
Well, it turns out such a USB to dual-BNC bridge expressly designed for Chord DACs already exists and it is currently being manufactured and sold by AudioWise (based in Canada).
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If there is a caveat, this bridge does not utilize XMOS but rather a chipset from a Taiwanese company called C-Media and so this was an initial concern. Would this C-Media chipset be no better than Amanero? I communicated with Dan Mance, who owns AudioWise and he was kind enough to send me a few units for evaluation. To cut to the chase, this USB-to-dual BNC bridge is fantastic and far superior to the Amanero in DAVE. In comparison, DAVE's Amanero sounds slow and bloated and sleepy. As always, YMMV but I believe all of Dan's products come with a money back satisfaction guarantee. Not surprisingly, the quality of the USB cable and the BNCs cables matter but even with inexpensive cables, this bridge is far superior to DAVE's USB input. In my opinion, if you own an Extreme and a Chord DAVE DAC, this bridge is a "must have."
Full disclosure, I have zero financial affiliation with AudioWise.
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