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Blue Circle Audio
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The BC515 Digital to Analog Convertor
 (improving on the 500 series of D/A convertors)

The new BC515 specs are similar to the 500 converters but with notable improvements.
The digital to analog part of the machine will support anywhere from 16 bits to 24 bits - 30KHz to 216Khz and anything in between,  
including 16/44, 16/44.1, 16/48, 24/96, 24/196 and more. Every signal trace on board has been carefully designed and tested. It
features a complete DC path to ensure ultra low jitter performance. Another feature that adds to the signal performance is the
microprocessor is not used in the control circuit. The less the clock contaminates the signal the better. The unique analog output
stage uses a design similar to those in our best solid-state preamps, NSC and power amps, NSL.
The power supply (fuel tank) is of the latest Blue Circle IAOE+KQ design. The BC515 has a power supply filtering capacitance of over
280,000uF. That is more than most 150 watt stereo power amps. This will ensure a very stable power supply. The result is a blacker
than black background which has a major impact on the micro detail of the musical presentation. This is one of the major factors that
contributes to that elusive sense of effortless and dynamic yet relaxed musicality.
Improved analog stage drive capacity by 100%.  Borrowed the design from our NSC output stage and NSL input/inter stage, it ensures
driving any preamp input or even power amp (volume control optional) directly and effortlessly. Custom inner stage coupling capacitors
between digital and analog stage improve transient response and the impact of dynamics. Mini KQ is incorporated into the power
supply.  This decreases ripple current by 350%.
As usual, what brand of chip set isn't something we waste time talking about.  As usual, we would prefer our customers to audition
the product instead of reading specs and comparing them to the latest buzz words or trendy parts on the net to make their decision.
We don’t make our decision based on how popular the parts are and we believe you shouldn’t make any decision based on the latest
fashion trends.
Features:

Inputs:
*Standard config: (1) Toslink, (1) 24bits/192KHz USB input, (1) SPDIF, (1) AES/EBU - accepts 16 bit to 24bit, from 32 KHz to 192 KHz
and anything inbetween
*Standard USB 24/192 (will also support 16/44, 16/48 and 24/96).

Outputs:
Standard config: (1) pair of XLR balanced, (1) RCA unbalanced

Optional features:
*Manual or remote volume control
*"USB input in addition supports PCM also supports DSD64 via DoP"

Dimensions and weight:
*17.5" wide x 10" deep x 3" high, 11 lb

Other chassis configurations are available on request.
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