A hand-built American hot rod of unparallelled quality and performance. The rear of the unit provides a full range of professional inputs and outputs in all popular audio formats. Computer interface is handled with the 'future proof' USB Type-C, while word clock and digital I/O allows seamless integration with any system or use as a stand-alone.
A True 'Hot Rod' Design
Encased in solid copper and hand-made in Seattle, WA, the Cu is a true "hot rod" among premium audio interfaces. Through exhaustive builds and testing, its precise combination of components, layout, firmware and features have resulted in a design that pushes theoretical limits. The added flexibility of the defeatable tube stage provides an extra surge of inspiration when searching for that ideal sound.
Engage The Flow
Copper Reference employs a simple, straightforward signal flow utilizing the finest components available.
A Wealth of Components
Having already pointed out many of the top quality components that comprise the Cu interface, one in particular held up production for several months as we waited for availability. We designed the Copper Reference to be the first product to feature the new Sabre Pro 9038 DAC chip from our friends at ESS Technologies. Capable of 140dB DNR and -122 THD, the Sabre Pro embodies the phrase 'exotic silicon' and is a major improvement on the previous king of converters, the ESS Technologies' Sabre Reference DAC.
Not to be overshadowed by the staggering specifications of the DAC, the Copper Reference input path features dual flagship AKM ADC's run in parallel and summed to gain an extra 3 dB of dynamic range.
From conception, there was never anything 'mass production' about the Copper Reference. We have strong relationships with manufacturers of popular mass market interfaces and did not want to compete in that space. So, we took the opportunity to specify, design and build what we considered to be our ultimate audio I/O device.
With no consideration for retail pricing, market position or mass appeal, we designed the product we wanted for our own use. Components were chosen based on performance and compatibility alone. The physical design was intended to be unique and the crazy tube saturation circuit - designed by guitar amplifier legend, Michael Soldano - was added just because we thought it would be cool. And it is.
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- Most items qualify for orders over $99.99
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- In order to protect your shipment from theft, we require a direct signature when delivered on most orders over $99
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- Free Shipping does not apply to special orders and oversized/overweight products
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Digital products are delivered via email, and nothing is physically shipped to you. Most products are delivered instantly, and will be marked as "eDelivery or Download" in these cases. Due to the irrevocable nature of digital goods, we are unable to offer returns or refunds for any order.
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