Callia makes no compromises on audio quality, ensuring you’ll experience music at home exactly as it was experienced by those who created it in the studio. Our heritage and unrivaled experience has allowed for the creation of a DAC of unparalleled sonic clarity.
CALLIA’s headphone output boasts a high-current, low impedance design optimized for the best possible performance. Able to power a wide range of high end headphones, CALLIA will adjust and match the impedance of your headphones for an unbeatable listening experience.
Callia is compatible with the widest range of computer hardware using a USB2 interface supporting UAC2 audio. Auto input detection and output protection allows for the hot plugging of cables without fear of damaging your speakers.
Prism Sounds long history in developing test and measurement equipment for the audio industry has provided Callia with the pinnacle of ultra-stable clocks, ensuring the most accurate and detailed conversion available.
CALLIA supports linear PCM in 2’s complement binary coding and, using the “DSD over PCM” (DOP) protocol, DSD at the original bit-rate (DSD64) and also at 2 x the original rate (DSD128). DSD Files encoded as “DOP” may be played with both ASIO and WDM drivers.
Your computer, tablet or transport will commonly decode formats such as mp3 to PCM prior to transmission to the sound card, so these formats will typically be supported on your device in the same manner as they would be with another sound card.
On the S/P-DIF inputs, DOP can also be used, but only at the original DSD bit rate (DSD64) as these connections do not have enough bandwidth for DSD128.
The ASIO native DSD format is not currently supported.
Table-top (including feet): 285 x 242 x 50mm
90VAC – 250VAC, 50 – 60Hz
15W consumption
0.5A(T), 20mm, glass
1 x USB Audio Device Class 2.0
1 x TOSLINK for S/PDIF
1 x RCA for AES3-ID
2 x XLR (balanced)
2 x RCA (pseudo-balanced)
Trademark acknowledgements
TOSLINK is a trademark of the Toshiba Corporation
Microsoft and Windows are trademarks of Microsoft Corporation.
Apple, Macintosh, Core Audio, FireWire and OS X are trademarks of Apple Computer, Inc.
All trademarks acknowledged
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You are about to view the Orpheus page on the Prism Sound legacy website.
Verifile is a solution to the issues of reliability that have plagued critical recording projects ever since the adoption of computer recording of audio. Typically, general purpose computers whether Mac, PC or other OS, are designed to perform a wide range of simultaneous tasks of which audio recording is just one. Even if the user would like audio recording to be given top priority, the computer’s operating system is not designed that way, and (even if optimally configured, which they seldom are) it will, now and again, interrupt audio recording to do something else. This is especially true when dealing with many channels of high resolution audio, perhaps with low latency, which needs a continuous high data throughput. The result is usually a recorded ‘dropout’ of some kind: anyone who has recorded audio on a computer is familiar with repeated or missed samples or entire sections, random clicks, pops – even channel swapping.
Verifile is a ‘fragile steganographic’ process which embeds derivative data within the dither of the ADC, containing a rolling hash code which allows the audio data to be thoroughly and continuously checked. Recovery of this data from the audio stream or file enables verification that the stream or file contains exactly the audio data that was produced by the ADC at the time of recording. Any incorrect samples, missing or repeated audio segments or any other audio errors in the resulting files can be reliably detected, providing complete confidence that the recorded file is error-free.
Processing of any kind of a Verifile recording such as EQ, level changes, additional re-dithering, sample-rate conversion etc will result in a failure to decode the rolling hash code in the dither and hence indicate that the recording is not an original.
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