Lynx Studio Technology is proud to present the Hilo Reference A/D D/A Converter System. With the pristine, open, transparent audio quality for which Lynx is known, Hilo (pronounced HE-low) provides two channels of mastering quality analog to digital conversion, up to eight channels of digital to analog conversion, a secondary monitor output, and a world class independent headphone amplifier in a compact half-rack size.
Hilo completely redefines and evolves the category of the two channel converter. Of utmost importance is the audio signal quality. The completely new design of the analog stages and converter topology for Hilo break new ground in terms of lowering distortion and noise while maintaining transparency for A/D and D/A conversion. Beyond that, Hilo offers extensive I/O capabilities and utilizes the latest FPGA technology with vast resources for control, routing, and signal processing capabilities. Also in development are diagnostic and analysis tools for Hilo. The LCD screen is a natural interface for these functions.
The digital or analog inputs can be routed to three separate outputs, Line Output (with 8 trim settings), Monitor Output, and Headphone Output. Each of these output pairs has its own dedicated DACs, allowing each to offer a unique mix. The Monitor and Headphone Outputs have volume controls, accessible via faders on the touchscreen or the single knob on the front (offering control in ½ dB increments). Another innovation, the Headphone section has its own dedicated D/A converter. This supports the creation of 32-channel headphone mixes independent of the main and monitor outputs, as well as providing specifications that rival those of dedicated headphone amps costing $1500 and more.
The digital section offers a wide range of inputs. AES/EBU inputs and outputs have transformer isolated balanced XLR connectors. SPDIF input and output are available via transformer-coupled coax or optical (TOSLINK) connections. The Optical ports can also be used for up to eight ADAT channels. The ADAT input and output channels are completely independent from the AES/EBU or S/PDIF coax channels. The Lynx LT-USB LSlot accessory is also included, for computer connectivity. Lynx’s low jitter SynchroLock word clock is also included, with Word Clock in and out connections available.
In total, Hilo has 12 total inputs, 16 total outputs plus 32 channels possible via its LSlot port. The unit’s FPGA powers its internal 32 channel mixer, which allows Hilo to offer the most versatile I/O and routing in the two channel converter genre. This is just the beginning of the innovation.
In contrast to the concentrated and intricate back panel, Hilo’s front panel is elegant in its simplicity. It has a power switch, headphone jack, multipurpose control and a 480 x 272 pixel high resolution LCD touchscreen. This high-resolution screen does a lot more than simply replace the buttons on the front panel of most other converters. Of course it handles the basic settings and routing functions, clocking and level settings.
Crucial for mastering and critical listening, Hilo offers world class, verifiable specifications. Actual measurements of a preproduction model show:
LINE IN A/D PERFORMANCE
THD+N -114dB @1kHz, -1dBFS, 20kHz filter
Dynamic Range 121 dB, A-weighted, -60dBFS signal method
Frequency Resp. ± 0.01 dB, 20 – 20kHz
Crosstalk -140 dB maximum @ 1kHz, -1dBFS signal
LINE OUT D/A PERFORMANCE
THD+N -109dB @1kHz, -1dBFS, 20kHz filter
Dynamic Range 121 dB, A- weighted, -60dBFS signal method
Frequency Resp. ± 0.02 dB, 20 – 20kHz
Crosstalk -135 dB maximum @ 1kHz, -1dBFS signal